Modeling and Control of Industrial Tunnel-type Furnaces for Brick and Tile Production

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Modeling and Control of Industrial Tunnel-type Furnaces for Brick and Tile Production"

Transcription

1 Modeln and Control of Industral Tunnel-type Furnaces for Brck and Tle Producton Panaots Mchael Unversty of Patras Electrcal & Computer Enneern Dept. Patras 26500, Greece Abstract The dynamc behavor of an ndustral tunneltype furnace s of the fundamental mportance for the qualty of the processed products. The knowlede of the furnace dynamcs can make the control of the system easer as well as t can elmnate certan operatonal problems. The varous subsystems exstent n a tunnel-type furnace are usually controlled by conventonal technques and ndependent controllers offern smply an acceptable operaton of the whole system. Ths paper approaches the overall furnace system by consdern both mathematcal modeln and fuzzy loc based technques. It proposes a control scheme for model-based coordnaton of the ndvdual subsystems whch are controlled locally by fuzzy controllers combned wth conventonal ones. The proposed control structure can be easly appled to the process envronment and the mplementaton may be realzed drectly on a prorammable loc controller. Index Terms Industral Furnaces, System Modeln, Control, Smulaton, Fuzzy loc I. INTRODUCTION System modeln and control s an mportant ssue n ndustral enneern applcatons and partcularly n complcated thermal processes. Conventonal approaches to system modeln need many assumed condtons and rely heavly on mathematcal tools, such as dfferental equatons, transfer functon and so on, whch emphasze the precson and exact descrpton of each quantty nvolved. The use of these mathematcal tools s sutable and well-appled only n smple or well-defned systems. However, when the system s complcated, these conventonal approaches become less effectve [1]. Fuzzy loc based technques have become a sutable alternatve and have been successfully employed n varous areas where conventonal methods fal to provde satsfactory results. Althouh they can be used n system modeln as well as n control, t seems that ther use n control s more feasble, attractve and wdely accepted. Tunnel-type contnuous furnaces are used n brck and tle producton plants to fre the products at hh temperatures of more than 1000 derees C. A man characterstc of these furnaces are ther lare dmensons wth tunnel lenth usually reater than 100 m and tunnel cross secton about 15 m 2, dvded n a number of thermal processn zones. The products travel throuh the tunnel, Stamats Maness Unversty of Patras Electrcal & Computer Enneern Dept. Patras 26500, Greece typcally wth a pecewse constant flow, and et subjected to ths successve thermal processn. A bref revew of the fundamental prncples and applcatons of thermal systems control s ven n [2], where the heat exchann procedure s manly treated. Hh relablty of furnace systems s a crucal factor n achevn hh product yeld. A ood mathematcal model of the system s requred n order to mplement a better control scheme. The model wll have to nclude contnuous and dscrete dynamcs, but may also be nfnte dmensonal, dependn on whether the temperature and aerodynamc states are modeled as dstrbuted or lumped parameter systems. The frst step n the desn of a modelbased controller s the development of a thermal model whch accurately captures the actual physcal behavor of the system to be controlled. Ths hh-fdelty thermal model s based on the applcaton of the dynamc heat transfer equatons to the system. The model may contan physcal varables whose values are not known n advance (e.. heat transfer coeffcents) and are dentfed from expermental data. A comparson of the model response wth the actual system output provdes a measure of model accuracy. The modeln and control of dstrbuted thermal systems s nvestated n [3] where model-based control desn technques are appled. A dynamc model of reheatn furnace based on fuzzy system and enetc alorthm s proposed n [1]. A basc oal n all research efforts concernn the control of tunnel-type furnace systems s the mathematcal modeln of them as has been done n other classcal types of furnaces [4, 5, 6]. The obtaned models can be used effcently for the analyss as well as for the synthess of the control stratey of these furnace thermal systems. Alon a tunnel-type furnace there are several subsystems n operatonal nterrelaton whch are responsble for the domnant thermal and aerodynamc states nsde the furnace. Accordn to a standard practce, n brck and tle manufacturn we use a seres of snle loop controllers n order to control these dfferent subsystems. The control task s today performed wth conventonal PID controllers that provde an acceptable operaton of the plant [7]. The PID controllers however cannot ensure that there s not devaton from the desrable operatn ponts. Ths means that there are stll snfcant

2 open control problems; one such problem s the dfference n temperature between the top and the bottom of the tunnel, despte the acton of the ar-recycln and sdeburners subsystems. Furthermore, current operaton s far from an optmal one from the enery consumpton pont of vew. There are snfcant thermal losses and the fuel consumpton can be substantally reduced. Mult-loop controllers have also been used n other types of ndustral furnaces as s the mult-loop temperature control scheme for a televson lass furnace descrbed n [8]. It s dffcult, tme-consumn and expensve to coordnate a reat number of snle-loop controllers requred for many subsystems whle n parallel achevn precse control s not always possble. A control tool has been proposed by ControlSoft Inc., the MANTRA 47 [9], whch can be used nstead of snle loop controllers n lass manufacturn furnaces. One control loop refers to the combuston procedure performed n ndustral burners that use ether fuel ol or natural as. A passve and actve control scheme of NOx n ndustral burners s proposed n [10]. The oal of ths control loop s to acheve ood mxn of fuel and ar n order to obtan the desred stochometrc concentratons mposed by envronmental condtons. In ths paper, the proposed approach for modeln and control of ndustral tunnel-type furnaces combnes conventonal mathematcal modeln wth fuzzy loc based technques. Ths combnaton of both technoloes ves n some cases better results [1]. Partcularly, ths paper ntroduces a fuzzy supervsory control scheme n order to coordnate local controllers and to evaluate whether they satsfy prespecfed performance crtera. A two-level herarchcal structure has been appled concernn the prmary system varables and the process behavor respectvely. Furthermore, two supervsory confuratons have been tested one for parameters adjustment and another for outputs addton n order to estmate the mpact of the hh level control stratey Preheatn Zone Heatn Zone Furnace lenth=105 m II. THE TUNNEL FURNACE FOR BRICK AND TILE PRODUCTION A tunnel-type ndustral furnace conssts of several subsystems n operatonal nterrelaton and s dvded usually n three zones, the pre-heatn zone, the heatn zone and the cooln zone as shown n F. 1. Two basc subsystems are responsble for the thermal and aerodynamc states created nsde the furnace. The system s heart s the heatn zone consstn of a matrx-set of burners. A typcal number s ehty burner flames or more located on the roof of the furnace. In order to acheve sothermal dstrbuton of heat from top to bottom, there are also sde burners at each sde of the furnace for rapd actons and temperature correctons. In some cases, the fuel used n these two burner-roups s dfferent and the correspondn combuston control presents addtonal dffcultes. In some producton processes, the products have to be dehydrated before entern the furnace. In such cases a parallel passve kln operates wth hot ar from furnace. Hence, another subsystem s that of hot ar extracton from the furnace and specfcally from the cooln zone. The hot ar flow s reulated n varous ponts of the furnace ether by on/off tampers or by analo poston tampers performn mxn wth envronment ar n order to keep hot ar flow and temperature constant. Immedately after the heatn zone, there s a small subsystem performn a rapd reducton of the temperature. Another subsystem wth multple ar fans feeds cool ar from the envronment at the end of the tunnel. To keep the tunnel temperature constant from top to bottom, n addton to the sde burners, there s also a subsystem for recycln hot ar before the heatn zone. Fnally, a chmney at the bennn of the tunnel forces exhaust emssons to the envronment affectn so the overall aerodynamc state nsde the furnace Cooln Zone Chmney Ar-lock Chamber Product flow Hot Ar Recycln Sde Burners Ar flow Roof Burners Rapd Cooln System Null Pressure Lne Hot Ar Extracton for Kln Operaton Cold Ar Feedn System F. 1. Schematc overvew of a tunnel-type furnace for brck and tle producton.

3 III. PHYSICAL MODEL OF THERMAL PROCESS The tunnel-type ndustral furnace s a very complex object for modeln and control, because multple exchane of enery occurs n t due to the nature of process that leads to complex mathematcal models descrbn ts dynamcs. In the past, tunnel-type ndustral furnaces were often bult wth a central heatn zone and thermal nsulaton that mnmzed heat loss throuh furnace walls. The result of such a desn was to create an almost statc system wthn the furnace from the aerodynamc pont of vew. A typcal brck producton process would nvolve placn a car of brcks nsde the furnace, rasn the temperature slowly to process temperature, holdn for a specfed tme and then quckly cooln the furnace. Whle such processes are stll common today, ncreasn demands for better temperature unformty and reater yeld are drvn furnace makers to address complcatons related to the dynamcs of the heatn and cooln processes [3]. Today, furnace makers ntroduce forced mult-nput multoutput ar flow n order to acheve the desred temperature dstrbuton across the furnace and to explot as much as possble the heat losses n secondary zones. The thermal effcency of a fuel-fred furnace s usually expressed by the rato of heat transfer to the load to the enery nput n the fuel. There are three basc and nterdependent mechansms of heat transfer, the thermal radaton, convecton and conducton. The steady-state enery balance s ven by Q& G + Q& pa = Q& + Q& L + Q& l (1) where Q & G s the enery nput suppled by the fuel, Q & pa s the rate of enery supply n preheated combuston ar, Q & s the heat content of the flue products, Q & L s the rate of heat transfer to the load and Q & l expresses any knd of enery losses. The enery nput suppled by the fuel s ven by Q & G = V & GC (2) V where V & G s the volumetrc flow rate of fuel and C V s the calorfc value. The rate of enery supply n preheated combuston ar s ven by Q & pa = V & GRs(1 + X) ρae (3) th, a where R s s the stochometrc ar/fuel volume rato, X s the percentae excess ar level, ρ a s the densty of ar at the reference temperature and pressure and E th, a s the specfc enthalpy of the preheated ar. Assumn complete combuston, the heat content of the flue products at temperature T s ven by Q & = V & P + R X ρ E T (4) ( ), ( ) s s th where P s s the combuston product/fuel volume rato, s the densty of the combuston products and E th, s the specfc enthalpy of the combuston products as a functon of temperature. Fnally, assumn a process load ρ throuhput of b & L, the rate of heat transfer to the load s ven by Q & L = b& L[ Eth( To) Eth( T) ] (5) where Eth ( T o ) and Eth( T ) are the specfc enthalpes of the load at the outlet and nlet temperature respectvely. The domnant mode of heat transfer from the flame and combuston products nsde furnace s the nonlumnous aseous radaton. In fossl-fuel fred combuston processes, carbon doxde and water vapor are the most mportant emtters of aseous radaton. Carbon monoxde and methane also absorb and emt radaton, but they are usually absent or exst at very low concentratons. Thermal radaton transfer can occur from surfaces and ases wthn a tunnel-type furnace. All surfaces wthn ndustral furnaces, emt, reflect and absorb radaton from ther surroundns and thereby partcpate n the overall exchane of radant enery to a load. For modeln a tunnel-type ndustral furnace, we consder that all furnace surfaces are rey Lambert surfaces where emssvty s assumed to be ndependent of both wavelenth and drecton of radaton. For a rey Lambert surface the emssvty (ε) s equal to absorptvty (α) and ε=1-ρ, where ρ s the reflectvty coeffcent. The enery transfer between two rey Lambert surfaces A 1 and A 2 of emssvtes ε 1 and ε 2 respectvely s ven by Q& 1 2 = ( Eb,1 Eb,2) / + 1 (6) A1ε1 A2 ε2 where E b s the emssve enery of surface. The aseous atmosphere n any fuel-fred furnace partcpates n the overall nterchane of radaton. A parallel beam of radaton passn throuh an absorbn rey as s attenuated n proporton to ts ntensty and the dstance traversed throuh the as. The radant emsson from a volume V of as at temperature T and wth 4 attenuaton coeffcent K s ven by Q& = σ KVT where 4 σ s the Boltzman constant. When a beam of radaton s ncdent upon a partcle, scattern occurs by dffracton, refracton and reflecton. However, because the dameter of soot partcles n aseous and lqud fuel flames s usually qute small, scattern of radaton by soot may be consdered nelble compared wth emsson and radaton. On the other hand, methods of calculatn scatter and for predctn the scattern coeffcent are dependent on the partcle dstrbuton/concentraton and ths nformaton s dffcult to obtan. IV. SYNTHESIS OF THE SUPERVISORY CONTROL STRATEGY Most ndustral furnaces are controlled usn classcal control alorthms such as ON-OFF or PID controllers. The popularty of PID control can be attrbuted to both ts ood performance over a wde rane of operatn condtons and to ts functonal smplcty. A common problem wth PID controllers used for control of hhly nonlnear processes s that the set of controller parameters

4 produces satsfactory performance only when the process s wthn a small operatonal wndow. Outsde ths wndow, other parameters or set ponts are necessary, and these adjustments may be done automatcally by a hh level stratey. The new control systems requre lookn for new and better control alorthms. Neural networks and fuzzy systems are ben used more often now due to development of mcroprocessors. A supervsory system s a system that evaluates whether local controllers satsfy prespecfed performance crtera, danoses causes for devaton from the performance crtera, plans actons, and executes the planned actons. For hh level control and supervsory control several smple controllers can be combned n a prorty herarchy. The appled control system wth supervsory fuzzy controller conssts of two herarchcal levels as shown n F. 2. The process control stratey System and Envronment Measurements T d Sensors Decsons from Model-based Smulaton Results PID Parameters SYSTEM F. 2. Herarchcal fuzzy supervsory structure. 1 st Level Process Behavor Quantzaton 2nd Level Output s expressed lnustcally as a set of mprecse condtonal statements whch form a set of decson rules. A fuzzy expert controller typcally takes the form of a set of IF- AND-THEN rules whose antecedents and consequences are membershp functons. The membershp functons of the fuzzy sets used to formulate the lnustc terms can be defned n many ways and ther choce depends on each practcal stuaton. In ths approach, the classcal tranular membershp functons, from neatve b to postve b, have been used. In the frst level, all the heurstc rules derved from model-based smulaton tests, are ncluded and refer to the prmary system varables ncludn the ar flow rate to kln, the temperature n varous ponts alon the furnace and the correspondn set ponts. The evaluaton of these (frst set) decson rules leads to fuzzy control actons whch must farther determned. Ths s done n the second level where the rules contan IF condtons whch refer to the process behavor. The overshoot, dampn and perod varables characterze the system transent response and are calculated before the adjustment of the controller parameters. Most heatn plant models are based on ether the zone method for radaton analyss or the computatonal flud dynamcs models referred to n [11]. Because of the lare lenth (105 m) of the ndustral furnace for brck and tle producton, t s more convenent to consder the multdmensonal zones model shown n F.3. In multdmensonal zone models, both lontudnal and crosssectonal or radal varaton n temperature and heat flux are consdered. Accordn to zone method, the furnace radatn enclosure s dvded nto sothermal volume and surface zones. A total enery balance s wrtten over each zone n terms of the radaton arrvn at t from all the zones n enclosure. Thus the radant enery balance ncludn radaton arrvn at surface s n uuuuv l uuuuuv Q& = S S E + G S E Aε E (7) where j bj j j b j= 1 j= 1 Q & s the enery flow to zone, SS uuv uuuv and GS are the exchane factors known as surface-surface and assurface drected flux areas respectvely, E s the black body emssve power of a as, n s the number of surface zones and l s the number of volume zones. The eometry and nput data for each volume and surface zone can be vared to match the specfed desn and operatn condtons of the furnace. For a lon-furnace model wth fuel and Zone 1 Load flow & m + 1 m& m & + Zone m + 1 F. 3. A lon-furnace model wth recrculaton between zones. ar nput to the specfed zones shown n F.3, the flow of combuston products between zones s resolved nto forward and reverse flow components m & + and m& respectvely. The enery balance s then ven by Q& G, + Q& pa, + Q& th, Q& co, Q& ra, = 0 (8) where Q & G, s ven by (2), Q & pa, s the heat nput n the combuston ar ven by (3). Q & co, and Q & ra, are the convectve and radatve heat transfer from the combuston products to the surroundn surfaces n zone. Q & th, s the flow of enthalpy to zone n the combuston products and s ven by Q& + th, = m& 1 Eth, ( T, 1) + m& + 1 Eth, ( T, + 1) (9) + m & + m& + m& 0,1 Eth, ( T, ) The above model s capable of smulatn the effects of recrculaton between zones (descrbed n secton II) provded the forward and reverse flow components are specfed. The soluton of each volume zone enery balance equaton s dependent on the combuston product temperatures n the nehborn zones. The equatons for all volume zones must therefore be solved smultaneously n the 1 st level of the supervsory structure n order to & Zone n Heat nput Flue mass flow m& 0,

5 derve the temperature T,. Fuzzy controllers may be nterated wth other controllers n varous confuratons. Two basc (a) T d (b) T d FUZZY PID FUZZY PID F. 4. Fuzzy controller confuratons. confuratons of the furnace supervsory control, shown n F. 4, were tested. Fuzzy n F. 4 refers to the hh level furnace control stratey whle PID stands for a conventonal control scheme whch n furnace case conssts of varous ndependent or coupled PID loops. In confuraton (a), the supervsory stratey s used for adjustments of the parameters of the PID control loops. Normally, conventonal PID controllers are capable of controlln the process when the operaton s steady and close to normal condtons. However, f sudden chanes occur or f the process enters abnormal stuatons, then the confuraton (b) s useful to brn the process back to normal operaton as fast as possble. SYSTEM SYSTEM forced nlet of ar at the end of the furnace (whch results n hh pressure at one end of the tunnel) whle there s a forced outlet at the bennn of the furnace (whch results n low pressure at the other end). Ths dfference n pressure results n a net flow of ar from one end to the other. In addton to controlln the temperature of the furnace, one has also to reulate and control the stablty of ths aerodynamc state. Between hh and low pressure there s an manable lne whch presents null pressure. Ths lne must le n a constant locaton between the heatn and cooln zone. A possble shftn of nullpressure lne n the heatn zone means that cool ar enters the heatn zone whch s forbdden. On the other hand, a possble shftn n the cooln zone mples that exhaust emssons wll enter the kln, whch s also undesrable. To keep the null-pressure lne constant, there must be a contnuous control of the cool ar nlet flow. The chmney flow s treated as a dsturbance, snce t vares ndependently to keep exhausts temperature at a low level for savn enery. The desrable temperature pattern succeeded manly by the matrx-set of roof burners, shown n F. 6, s stronly affected by the convenent or no operaton of the overall ar flow system. From the above descrpton t s obvous V. FURNACE PERFORMANCE RESULTS AND DISCUSSION Typcal oals of a supervsory controller are safe operaton, hhest product qualty, and most economc operaton. All three oals are usually mpossble to acheve smultaneously, so they must be prortzed. The temperature alon the whole lenth of the tunnel must follow a predefned curve dependn on the knd of the process. For example, n furnaces for conventonal Temperature o C Furnace lenth (m) F. 5. Furnace temperature pattern. ceramc products, the temperature pattern must follow the one depcted n F. 5. As mentoned above there s a F. 6. Overvew of the roof burners. that the supervsory control system has to perform contnuous control of varous physcal varables such as temperature, ar flow and stochometrc combuston, and dscrete control (ON/OFF) of varous tampers, burners, fans and doors. The most basc of the PID control loops s the one concernn the combuston of the roof burners shown n F. 6. The controller reulates the operaton of burners based on the measurement of ar flow nlet and temperature, and on the stochometrc analyss data. A prelmnary parametrc study was made to nvestate the mpact of flame-vortex nteractons and fuel/ar mxture nhomoenety on combuston nstablty. The dependency of combuston nstablty on fuel mean velocty s stron and suests that the domnant mechansm causn combuston nstablty s hydrodynamcs and ts nteracton wth flame. The proposed fuzzy supervsory control scheme has been tested wth expermental data obtaned from a 250 ton/24 hour brck furnace n Greece. The fuzzy loc part of the

6 controller and the correspondn rule base were mplemented n a S7-300 PLC usn the FuzzyControl++ S7 software packae by Semens. Fure 7 shows typcal Preheatn Zone Temperature ( o C) Bottom temperature Top temperature Furnace lenth (m) CONCLUSIONS Control problems n the furnace-based process ndustry are domnated by non-lnear and tme-varyn behavor, many nner loops and much nteracton between the control loops. The ntroducton of a snle multple-nput multpleoutput controller s not useful because of the rather hh desn effort and the low transparency of ts complex structure. A more sutable herarchcal fuzzy-loc-based supervsory control scheme has been descrbed n ths paper. In the upper level of the herarchy the supervsory controller classfes the actual system stuaton based on the mathematcal model of the process and n the lower level performs the specfc control mode selecton. F. 7. Temperature varaton alon the tunnel furnace at the top and the bottom wthout supervsory control. Temperature ( o C) Preheatn Zone Bottom temperature Top temperature Furnace lenth (m) F. 8. Temperature dfference of F. 6 after the acton of the fuzzy supervsory controller. temperature varatons at the top and the bottom of the tunnel furnace wthout the acton of the supervsory controller. The temperature devaton must be null n the optmum case and f possble wthout the ad of the ar recycln and sde-burners subsystems. Snce somethn lke ths t seems mpossble today, new and better control alorthms are requred. Fure 8 shows the reducton of the temperature dfference between the top and the bottom of the tunnel obtaned after the acton of the fuzzy supervsory controller. As mentoned above, typcal oals for a supervsory controller are safe operaton, hhest product qualty and most economc operaton. All three oals are usually mpossble to acheve smultaneously. Hence, they must be prortzed and presumably safety ets the hhest prorty. The proposed herarchcal supervsory control scheme s the most sutable to assn prortes to the varous control objectves. REFERENCES [1] B. Zhan, L. Xu, J. Wan and H. Shao, Dynamc Model of Reheatn Furnace Based on Fuzzy System and Genetc Alorthm, Proceedns of the Amercan Control Conference 2002, vol.5, pp , May [2] M. Sen, A Revew of the Prncples and Applcatons of Thermal Control, Journal of the Mexcan Socety of Mechancal Enneern, vol.1, No.4, pp , [3] A.E. Naen, J.L. Ebert, D. Roover, R. L. Kosut, M. Dettor, L. Porter and S. Ghosal, Modeln and Control of Dstrbuted Thermal Systems, IEEE Transactons on Control Systems Technoloy, vol.11, No.5, September [4] S. Pal and A.K. Lahr, Mathematcal Model of COREX Melter Gasfer: Part II, Dynamc Model, Metallurcal and Materals Transactons B, Vol.34B, pp , September [5] D.Lj. Debelkovc, I. Buzurovc, M.V. Rancc and S.D. Sarbon, Mathematcal Model of the Pulversn Plant as a Mass Accumulator wth Assocated Dynamcs of Both Impeller and Coal Dryn Process, Scentfc Journal Facta Unverstats Mechancal enneern, vol.1, No.6, pp , [6] Q. He, S.J. Qn and A.J. Torpac, Computatonally Effcent Modeln of Wafer Temperatures n an LPCVD Furnace, Journal on Advanced Process Control and Automaton, vol.5044, pp , [7] S. Martneau, K.J. Burnham, O.C.L. Haas, G. Andrews and A. Heeley, Four-term blnear PID controller appled to an ndustral furnace, Control Enneern Practce, 12, pp , [8] U.C. Moon and K.Y. Lee, Mult-Loop Control of Temperature for TV Glass Furnace, Proceedns of the 39 th IEEE Conference on Decson and Control, Sydney, December [9] Temperature Mantenance and Fuel Flow n Glass Furnace usn MANTRA 47, ControlSoft Publcatons No. AN303, rev , [10] O. Delabroy, E. Hale, F. Lacas, S. Candel, A. Pollard, A. Sobesak and H.A. Becker, Passve and actve control of NOx n ndustral burners, The Expermental Thermal and Flud Scence Journal, 16, pp.64-75, [11] J.M. Rhne and R.J. Tucker, Modeln and Control of Gas-Fred Furnaces and Bolers, McGraw-Hll, New York 1991.

Simulation of the Cooling Circuit with an Electrically Operated Water Pump

Simulation of the Cooling Circuit with an Electrically Operated Water Pump Smulaton of the Coolng Crcut wth an Electrcally Operated Water Pump Dragan Smc, Chrstan Kral, Franz Prker Arsenal Research Faradaygasse 3, Object 1 A 1030 Venna, Austra phone: + 43 (0) 50 550-6347 fax:

More information

Supplier selection and evaluation using multicriteria decision analysis

Supplier selection and evaluation using multicriteria decision analysis Suppler selecton and evaluaton usng multcrtera decson analyss Stratos Kartsonaks 1, Evangelos Grgorouds 2, Mchals Neofytou 3 1 School of Producton Engneerng and Management, Techncal Unversty of Crete,

More information

Modeling and Simulation for a Fossil Power Plant

Modeling and Simulation for a Fossil Power Plant Modelng and Smulaton for a Fossl Power Plant KWANG-HUN JEONG *, WOO-WON JEON, YOUNG-HOON BAE AND KI-HYUN LEE Corporate R&D Insttute Doosan Heavy Industres and Constructon Co., Ltd 555, Gwgo-dong, Changwon,

More information

Calculation and Prediction of Energy Consumption for Highway Transportation

Calculation and Prediction of Energy Consumption for Highway Transportation Calculaton and Predcton of Energy Consumpton for Hghway Transportaton Feng Qu, Wenquan L *, Qufeng Xe, Peng Zhang, Yueyng Huo School of Transportaton, Southeast Unversty, Nanjng 210096, Chna; *E-mal: wenql@seu.edu.cn

More information

combustion Furnaces are suitably becomes one the top research reasons control topics in the pollution. the applications important analyzer for the

combustion Furnaces are suitably becomes one the top research reasons control topics in the pollution. the applications important analyzer for the European Control Conference (ECC) July 7-9,, Zürch, Swtzerland. Advanced control solutons to ncrease effcency a furnace combuston process S. M. Zanol*, D. Barches*, G. Astolf* and L. Barbon ** *D.I.I.G.A,

More information

Application of Ant colony Algorithm in Cloud Resource Scheduling Based on Three Constraint Conditions

Application of Ant colony Algorithm in Cloud Resource Scheduling Based on Three Constraint Conditions , pp.215-219 http://dx.do.org/10.14257/astl.2016.123.40 Applcaton of Ant colony Algorthm n Cloud Resource Schedulng Based on Three Constrant Condtons Yang Zhaofeng, Fan Awan Computer School, Pngdngshan

More information

A SIMULATION STUDY OF QUALITY INDEX IN MACHINE-COMPONF~T GROUPING

A SIMULATION STUDY OF QUALITY INDEX IN MACHINE-COMPONF~T GROUPING A SMULATON STUDY OF QUALTY NDEX N MACHNE-COMPONF~T GROUPNG By Hamd Sefoddn Assocate Professor ndustral and Manufacturng Engneerng Department Unversty of Wsconsn-Mlwaukee Manocher Djassem Assstant Professor

More information

Sporlan Valve Company

Sporlan Valve Company F21O-10-12 LMTED: M & W What s a TEV Settng? For years Sporlan and every other manufacturer oftevs has used regulated arflow and controlled temperature baths to establsh a "factory" settng. Typcally the

More information

1991), a development of the BLAST program which integrates the building zone energy balance with the system and central plant simulation.

1991), a development of the BLAST program which integrates the building zone energy balance with the system and central plant simulation. OPTIMISATION OF MECHANICAL SYSTEMS IN AN INTEGRATED BUILDING ENERGY ANALYSIS PROGRAM: PART I: CONVENTIONAL CENTRAL PLANT EQUIPMENT Russell D. Taylor and Curts O. Pedersen Unversty of Illnos at Urbana-

More information

emissions in the Indonesian manufacturing sector Rislima F. Sitompul and Anthony D. Owen

emissions in the Indonesian manufacturing sector Rislima F. Sitompul and Anthony D. Owen Mtgaton optons for energy-related CO 2 emssons n the Indonesan manufacturng sector Rslma F. Stompul and Anthony D. Owen School of Economcs, The Unversty of New South Wales, Sydney, Australa Why mtgaton

More information

Finite Element Analysis and Optimization for the Multi- Stage Deep Drawing of Molybdenum Sheet

Finite Element Analysis and Optimization for the Multi- Stage Deep Drawing of Molybdenum Sheet Fnte Element Analyss and Optmzaton for the Mult- Deep of Molybdenum Sheet Heung-Kyu Km a,*, Seok Kwan Hong a, Jong-Kl Lee b, Byung-Hee Jeon c, Jeong Jn Kang a, and Young-moo Heo a a Precson Molds and Des

More information

On Advantages of Scheduling using Genetic Fuzzy Systems

On Advantages of Scheduling using Genetic Fuzzy Systems On Advantages of Schedulng usng Genetc Fuzzy Systems Carsten Franke, Joachm Leppng, and Uwe Schwegelshohn Computer Engneerng Insttute, Dortmund Unversty, 44221 Dortmund, Germany (emal: {carsten.franke,

More information

Numerical Analysis about Urban Climate Change by Urbanization in Shanghai

Numerical Analysis about Urban Climate Change by Urbanization in Shanghai Numercal Analyss about Urban Clmate Change by Urbanzaton n Shangha Hafeng L 1, Wejun Gao 2 and Tosho Ojma 3 1 Research Assocate, School of Scence and Engneerng, Waseda Unversty, Japan 2 Assocate Professor,

More information

A Numerical Study on the Estimation of Heat Release Rate Based on the Flow Field through the Doorway

A Numerical Study on the Estimation of Heat Release Rate Based on the Flow Field through the Doorway A Numercal Study on the Estmaton of Heat Release Rate Based on the Flow Feld through the Doorway SUNG CHAN KIM School of Fre and Dsaster Preventon Kyung Il Unversty 33, Buho-r, Hayang-eup, Gyungsan-s,

More information

THE BIOMASS-COAL CO-FIRING TECHNOLOGY FOR THE ENERGY PRODUCTION

THE BIOMASS-COAL CO-FIRING TECHNOLOGY FOR THE ENERGY PRODUCTION THE BIOMASS-COAL CO-FIRING TECHNOLOGY FOR THE ENERGY PRODUCTION Conf. dr. ng. Ionel PISA, Prof.dr.ng. Lucan MIHAESCU, Prof.dr.ng. Tudor PRISECARU, Prof. dr. ng. Ion OPREA, Conf. dr.ng. Gabrel NEGREANU,

More information

Power Distribution System Planning Evaluation by a Fuzzy Multi-Criteria Group Decision Support System

Power Distribution System Planning Evaluation by a Fuzzy Multi-Criteria Group Decision Support System Internatonal Journal of Computatonal Intellgence Systems, Vol.3, No. 4 (October, 2010), 474-485 Power Dstrbuton System Plannng Evaluaton by a Fuzzy Mult-Crtera Group Decson Support System Tefeng ZHANG

More information

Reprint from "MPT-Metallurgical P(ant and Technology International" issue No. 2/1990, pages Optimization of. Tempcore installations for

Reprint from MPT-Metallurgical P(ant and Technology International issue No. 2/1990, pages Optimization of. Tempcore installations for Reprnt from "MPT-Metallurgcal P(ant and Technology nternatonal" ssue No. 2/990, pages 6-69 (Ç 990, Verlag StahlesenmbH, Düsseldorf Optmzaton of. Tempcore nstallatons for rebars Perre Smon, Centre de Recherches

More information

The 27th Annual Conference of the Japanese Society for Artificial Intelligence, Shu-Chen Cheng Guan-Yu Chen I-Chun Pan

The 27th Annual Conference of the Japanese Society for Artificial Intelligence, Shu-Chen Cheng Guan-Yu Chen I-Chun Pan 2C4-IOS-3c-6 An estmaton method of tem dffculty ndex combned wth the partcle swarm optmzaton algorthm for the computerzed adaptve testng Shu-Chen Cheng Guan-Yu Chen I-Chun Pan Department of Computer Scence

More information

A Scenario-Based Objective Function for an M/M/K Queuing Model with Priority (A Case Study in the Gear Box Production Factory)

A Scenario-Based Objective Function for an M/M/K Queuing Model with Priority (A Case Study in the Gear Box Production Factory) Proceedngs of the World Congress on Engneerng 20 Vol I WCE 20, July 6-8, 20, London, U.K. A Scenaro-Based Objectve Functon for an M/M/K Queung Model wth Prorty (A Case Study n the Gear Box Producton Factory)

More information

Standard Electromotive Force (EMF) Series. Outline. Concentration and Temperature Effects. Example

Standard Electromotive Force (EMF) Series. Outline. Concentration and Temperature Effects. Example Standard Electromotve Force (EMF) Seres Outlne Bref Revew: Corroson Concentraton and Temperature Effects Example Corroson Rates Polarzaton Corroson Rate - Actvaton - Concentraton Passve behavour For any

More information

Mathematical models of air-cooled condensers for thermoelectric units

Mathematical models of air-cooled condensers for thermoelectric units Energy and Sustanablty II 399 Mathematcal models of ar-cooled condensers for thermoelectrc unts S. Bracco 1, O. Calgars 2 & A. Trucco 1 1 Department of Machnery, Energy Systems and Transportaton, Genoa

More information

Tools for Sustainable Energy Engineering

Tools for Sustainable Energy Engineering Tools for Sustanable Energy Engneerng Göran Wall Department of Culture, Energy and Envronment, Gotland Unversty, Vsby, Sweden Tel: +46(0)498299131, Fax: +46(0)498299962 Abstract: Exergy concepts and exergy

More information

EVALUATION METHODOLOGY OF BUS RAPID TRANSIT (BRT) OPERATION

EVALUATION METHODOLOGY OF BUS RAPID TRANSIT (BRT) OPERATION 200-203 JATIT & LL. All rghts reserved. IN: 992-864 www.att.org E-IN: 87-39 EVALUATION METHODOLOGY OF BU RAPID TRANIT (BRT) OPERATION WU HONGYANG A a Chna Urban ustanable Transport Research Center (CUTReC),

More information

LOGISTICS NETWORK OPTIMISATION UNDER CARBON EMISSION CONTROL FOR THE PAPER RECYCLING INDUSTRY

LOGISTICS NETWORK OPTIMISATION UNDER CARBON EMISSION CONTROL FOR THE PAPER RECYCLING INDUSTRY LOGISTICS NETWORK OPTIMISATION UNDER CARBON EMISSION CONTROL FOR THE PAPER RECYCLING INDUSTRY Don L, Zurna Hanaf and Paul Drake Unversty of Lverpool Manaement Scool, Catam Street, L69 7ZH, Lverpool UK

More information

RIGOROUS MODELING OF A HIGH PRESSURE ETHYLENE-VINYL ACETATE (EVA) COPOLYMERIZATION AUTOCLAVE REACTOR. I-Lung Chien, Tze Wei Kan and Bo-Shuo Chen

RIGOROUS MODELING OF A HIGH PRESSURE ETHYLENE-VINYL ACETATE (EVA) COPOLYMERIZATION AUTOCLAVE REACTOR. I-Lung Chien, Tze Wei Kan and Bo-Shuo Chen RIGOROUS MODELING OF A HIGH PRESSURE ETHYLENE-VINYL ACETATE (EVA) COPOLYMERIZATION AUTOCLAVE REACTOR I-Lung Chen, Tze We an and Bo-Shuo Chen Department of Chemcal Engneerng, Natonal Tawan Unversty of Scence

More information

Thermodynamic Properties of CO 2 Mixtures and Their Applications in Advanced Power Cycles with CO 2 Capture Processes

Thermodynamic Properties of CO 2 Mixtures and Their Applications in Advanced Power Cycles with CO 2 Capture Processes Thermodynamc Propertes of Mxtures and Ther Applcatons n Advanced Power Cycles wth Capture Processes Halong L Energy Processes Department of Chemcal Engneerng and Technology Royal Insttute of Technology

More information

RULEBOOK on the manner of determining environmental flow of surface water

RULEBOOK on the manner of determining environmental flow of surface water Pursuant to Artcle 54 paragraph 2 of the Law on Waters (Offcal Gazette of the Republc of Montenegro 27/07 and Offcal Gazette of Montenegro 32/11 and 48/15), the Mnstry of Agrculture and Rural Development

More information

DEVELOPMENT OF A MODEL FOR EVALUATING THE EFFECTIVENESS OF ACCOUNTING INFORMATION SYSTEMS

DEVELOPMENT OF A MODEL FOR EVALUATING THE EFFECTIVENESS OF ACCOUNTING INFORMATION SYSTEMS DEVELOPMENT OF A MODEL FOR EVALUATING THE EFFECTIVENESS OF ACCOUNTING INFORMATION SYSTEMS Asta Raupelene, asta@eko.lzuu.lt - Lnas Stabngs, lnas@nfo.lzuu.lt Lthuanan Unversty of Agrculture The mplementaton

More information

Modeling and Analysis of an Integrated Power System Based on Methanol Autothermal Reforming

Modeling and Analysis of an Integrated Power System Based on Methanol Autothermal Reforming 17th Medterranean Conference on Control & Automaton Makedona Palace, Thessalonk, Greece June 4-6, 009 Modelng and Analyss of an Integrated Power System Based on Methanol Autothermal eformng Dmtrs Ipsaks

More information

INCORPORATION OF KNOWLEDGE MANAGEMENT INTO ERP CONTINUOUS IMPROVEMENT: A RESEARCH FRAMEWORK

INCORPORATION OF KNOWLEDGE MANAGEMENT INTO ERP CONTINUOUS IMPROVEMENT: A RESEARCH FRAMEWORK INCORPORATION OF KNOWLEDGE MANAGEMENT INTO ERP CONTINUOUS IMPROVEMENT: A RESEARCH FRAMEWORK Thomas C. McGnns, Central Mchan Unversty, mcn1tc@cmch.edu Dr. Zhenyu Huan, Central Mchan Unversty, huan1z@cmch.edu

More information

Driving Factors of SO 2 Emissions in 13 Cities, Jiangsu, China

Driving Factors of SO 2 Emissions in 13 Cities, Jiangsu, China Avalable onlne at www.scencedrect.com ScenceDrect Energy Proceda 88 (2016 ) 182 186 CUE2015-Appled Energy Symposum and Summt 2015: Low carbon ctes and urban energy systems Drvng Factors of SO 2 Emssons

More information

Wind Power Prediction Using a Hybrid Approach with Correction Strategy Based on Risk Evaluation

Wind Power Prediction Using a Hybrid Approach with Correction Strategy Based on Risk Evaluation M.Essa et al., Vol.7, No.3, 7 Wnd Power Predcton Usng a Hybrd Approach wth Correcton Strategy Based on Rsk Evaluaton Mohammed Essa*, Yu Jla*, Wang Songyan*, Peng Lu* *School of Electrcal Engneerng and

More information

The Spatial Equilibrium Monopoly Models of the Steamcoal Market

The Spatial Equilibrium Monopoly Models of the Steamcoal Market Advances n Management & Appled Economcs, vol.2, no.3, 2012, 125-132 ISSN: 1792-7544 (prnt verson), 1792-7552 (onlne) Scenpress Ltd, 2012 The Spatal Equlbrum Monopoly Models of the Steamcoal Maret Hu Wen

More information

Zirconium Solubility in Aluminum Alloys

Zirconium Solubility in Aluminum Alloys roceedngs of the 9 th Internatonal Conference on umnum loys (2004) 1353 Edted by J.F. Ne, A.J. Morton and B.C. Muddle Insttute of Materals Engneerng Australasa Ltd Zrconum Solublty n umnum loys C. Sgl

More information

ESTIMATION OF THE GAMMA DOSE RATE FOR HOMOGENOUS WASTE CONTAINERS *

ESTIMATION OF THE GAMMA DOSE RATE FOR HOMOGENOUS WASTE CONTAINERS * ESTIMATION OF THE GAMMA DOSE RATE FOR HOMOGENOUS WASTE CONTAINERS * C.N. DULAMA 1, M. DULAMA 1, R. DOBRIN 1, M. PAVELESCU 2 1 Insttute for Nuclear Research, Pteşt, Romana, crstan.dulama@nuclear.ro, 2 Academy

More information

of 10 mmol O 2 /g-dry wt-h are to be cultured. The critical

of 10 mmol O 2 /g-dry wt-h are to be cultured. The critical Cork Insttute of Technology achelor of Engneerng n Chemcal & Process Engneerng - ward Summer 00 CE4.6 Chemcal & ochemcal Reactors (Tme: Hours) Instructons nswer any FOUR questons. Use separate answer books

More information

ENHANCING OPERATIONAL EFFICIENCY OF A CONTAINER OPERATOR: A SIMULATION OPTIMIZATION APPROACH. Santanu Sinha Viswanath Kumar Ganesan

ENHANCING OPERATIONAL EFFICIENCY OF A CONTAINER OPERATOR: A SIMULATION OPTIMIZATION APPROACH. Santanu Sinha Viswanath Kumar Ganesan Proceedngs of the 2011 Wnter Smulaton Conference S. Jan, R.R. Creasey, J. Hmmelspach, K.P. Whte, and M. Fu, eds. ENHANCING OPERATIONAL EFFICIENCY OF A CONTAINER OPERATOR: A SIMULATION OPTIMIZATION APPROACH

More information

WHEC 16 / June 2006 Lyon France. 1. Introduction

WHEC 16 / June 2006 Lyon France. 1. Introduction 1. Introducton Hgh-temperature steam electrolyss (HTE) s an alternatve to the conventonal electrolyss process. Some of the energy requred to splt the water molecule s provded as heat nstead of electrcty,

More information

Introducing a Multi-Agent, Multi-Criteria Methodology for Modeling Electronic Consumer s Behavior: The Case of Internet Radio

Introducing a Multi-Agent, Multi-Criteria Methodology for Modeling Electronic Consumer s Behavior: The Case of Internet Radio Introducng a Mult-Agent, Mult-Crtera Methodology for Modelng Electronc Consumer s Behavor: The Case of Internet Rado Nkos Manousels 1, and Nkos F. Matsatsns 2 1,2 Techncal Unversty of Crete, Dept. of Producton

More information

Characteristics of Cascade and C3MR Cycle on Natural Gas Liquefaction Process

Characteristics of Cascade and C3MR Cycle on Natural Gas Liquefaction Process Characterstcs of Cascade and C3MR Cycle on atural Gas Lquefacton Process Jung-n Yoon, Ho-saeng Lee, Seung-taek Oh, Sang-gyu Lee and Keun-hyung Cho Abstract In ths paper, several dfferent types of natural

More information

AN ITERATIVE ALGORITHM FOR PROFIT MAXIMIZATION BY MARKET EQUILIBRIUM CONSTRAINTS

AN ITERATIVE ALGORITHM FOR PROFIT MAXIMIZATION BY MARKET EQUILIBRIUM CONSTRAINTS AN ITERATIVE ALGORITHM FOR PROFIT MAXIMIZATION BY MARKET EQUILIBRIUM CONSTRAINTS Andrés Ramos Marano Ventosa Mchel Rver Abel Santamaría Unversdad Pontfca Comllas IBERDROLA DISTRIBUCIÓN S.A.U. Alberto Agulera

More information

Willingness to Pay for Beef Quality Attributes: Combining Mixed Logit and Latent Segmentation Approach

Willingness to Pay for Beef Quality Attributes: Combining Mixed Logit and Latent Segmentation Approach Wllngness to Pay for Beef Qualty Attrbutes: Combnng Mxed Logt and Latent Segmentaton Approach Chanjn Chung Department of Agrcultural Economcs Oklahoma State Unversty Stllwater, OK 74078 Emal: chanjn.chung@okstate.edu

More information

Building Energy Consumption and CO 2 Emissions in China

Building Energy Consumption and CO 2 Emissions in China Buldng Energy Consumpton and CO 2 Emssons n Chna ZHOU WEI, MI HONG 2,2 Supervser of Admnstraton School Zhejang Unversty CHINA ttomcc@gmal.com 2 spsswork@63.com(correspondng author) Abstract: - Based on

More information

This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and

This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and Ths artcle appeared n a journal publshed by Elsever. The attached copy s furnshed to the author for nternal non-commercal research and educaton use, ncludng for nstructon at the authors nsttuton and sharng

More information

Ian Beausoleil-Morrison, PhD Adrian Schatz, PE François Maréchal, PhD Member ASHRAE. Received January 15, 2006; accepted March 30, 2006

Ian Beausoleil-Morrison, PhD Adrian Schatz, PE François Maréchal, PhD Member ASHRAE. Received January 15, 2006; accepted March 30, 2006 2006, Amercan Socety of Heatng, Refrgeratng and Ar-Condtonng Engneers, Inc. (www.ashrae.org). Publshed n HVAC&R Research, Vol. 12, No. 3a, July 2006. For personal use only. Addtonal dstrbuton n ether paper

More information

Elastic Lateral Features of a New Glass Fiber Reinforced Gypsum Wall

Elastic Lateral Features of a New Glass Fiber Reinforced Gypsum Wall Vol:, No:3, Elastc Lateral Features of a New Glass Fber Renforced Gypsum Wall Zhengyong Lu, Huqng Yng Internatonal Scence Index, Cvl and Envronmental Engneerng Vol:, No:3, waset.org/publcaton/67 Abstract

More information

DEVELOPMENT OF THE CONSUMING INTENTION PRODUCT DESIGN MECHANISM

DEVELOPMENT OF THE CONSUMING INTENTION PRODUCT DESIGN MECHANISM Journal of Theoretcal and ppled Informaton Technology 2005-2013 JTIT & LLS. ll rghts reserved. ISSN: 1992-8645 www.jatt.org E-ISSN: 1817-3195 DEVELOPMENT OF THE CONSUMING INTENTION PRODUCT DESIGN MECHNISM

More information

Smart Grid Analysis of Centralized Cooling for an Urban Community

Smart Grid Analysis of Centralized Cooling for an Urban Community Smart Grd Analyss of Centralzed Coolng for an Urban Communty Francne Vera, Jéssca Henrques, Larssa Soares, Leandro Rezende, Moses Soares Martns, Ramundo R. Melo Neto and Donald J. Chmelews* Department

More information

A Real-time Planning and Scheduling Model in RFID-enabled Manufacturing

A Real-time Planning and Scheduling Model in RFID-enabled Manufacturing Proceedngs of the 2014 Internatonal Conference on Industral Engneerng and Operatons Management Bal, Indonesa, January 7 9, 2014 A Real-tme Plannng and Schedulng Model n RFID-enabled Manufacturng Ray Y.

More information

Eco-efficiency optimization of Hybrid Electric Vehicle based on response surface method and genetic algorithm

Eco-efficiency optimization of Hybrid Electric Vehicle based on response surface method and genetic algorithm Eco-effcency optmzaton of Hybrd Electrc Vehcle based on response surface method and genetc algorthm J. Nzsabra, P. Duysnx, Y. Louvgny LTAS - Automotve Engneerng, Unversty of Lege, B52, Chemns des Chevreuls,

More information

Development of Decision Support System for Optimal Site Selection of Desalination Plants

Development of Decision Support System for Optimal Site Selection of Desalination Plants IOSR Journal of Mechancal and Cvl Engneerng (IOSR-JMCE) e-issn: 78-184,p-ISSN: 30-334X, Volume 11, Issue Ver. III (Nov- Dec. 014), PP 84-90 Development of Decson Support System for Optmal Ste Selecton

More information

Adaptive Noise Reduction for Engineering Drawings Based on Primitives and Noise Assessment

Adaptive Noise Reduction for Engineering Drawings Based on Primitives and Noise Assessment Adaptve ose Reducton for Engneerng Drawngs Based on Prmtves and ose Assessment Jng Zhang Wan Zhang Lu Wenyn Department of Computer Scence, Cty Unversty of Hong Kong, Hong Kong SAR, PR Chna {jzhang,wanzhang,

More information

The Structure and Profitability of Organic Field Corn Production

The Structure and Profitability of Organic Field Corn Production The Structure and Proftablty of Organc Feld Corn Producton Wllam D. McBrde* Catherne Greene Lnda Foreman Selected Paper prepared for presentaton at the Agrcultural and Appled Economcs Assocaton s 2013

More information

The Implication of Limited Conventional Fossil Fuels and Declining EROI on Economic Growth in China

The Implication of Limited Conventional Fossil Fuels and Declining EROI on Economic Growth in China The Implcaton of Lmted Conventonal Fossl Fuels and Declnng EROI on Economc Growth n Chna by Lanyong Feng a, Yngchao Chen a, Yan Hu b, Jngxuan Feng a, Chaoren Jn a, Bn Chen c, Wllam X We d a School of Busness

More information

A SENSITIVITY ANALYSIS OF NATURAL VENTILATION DESIGN PARAMETERS FOR NON RESIDENTIAL BUILDINGS.

A SENSITIVITY ANALYSIS OF NATURAL VENTILATION DESIGN PARAMETERS FOR NON RESIDENTIAL BUILDINGS. A SENSITIVITY ANALYSIS OF NATURAL VENTILATION DESIGN PARAMETERS FOR NON RESIDENTIAL BUILDINGS Annamara Beller* 12, Spencer Dutton 3, Ulrch Flpp Oberegger 1, Roberto Lolln 1 1 Insttute for Renewable Energy,

More information

A PRACTICAL PROCEDURE FOR CALIBRATING MICROSCOPIC TRAFFIC SIMULATION MODELS

A PRACTICAL PROCEDURE FOR CALIBRATING MICROSCOPIC TRAFFIC SIMULATION MODELS A PRACTICAL PROCEDURE FOR CALIBRATING MICROSCOPIC TRAFFIC SIMULATION MODELS By John Hourdaks 1 Panos G. Mchalopoulos 2 Jj Kottommannl 3 1 Department of Cvl Engneerng Unversty of Mnnesota 500 Pllsbury Dr.

More information

A Hybrid Model for Congestion Management with Real and Reactive Power Transaction

A Hybrid Model for Congestion Management with Real and Reactive Power Transaction A Hybrd Model for Congeston Management wth Real and Reactve Power Transacton Narayana Prasad Padhy Yog Ra Sood Abdel Moamen. M. A. Maruth Kumar H. O. Gupta Abstract-- In ths paper, an effcent and practcal

More information

APPLICATION OF FLEET CREATION PROBLEMS IN AIRCRAFT PRE-DESIGN

APPLICATION OF FLEET CREATION PROBLEMS IN AIRCRAFT PRE-DESIGN APPLICATION OF FLEET CREATION PROBLEMS IN AIRCRAFT PRE-DESIGN Pavel V. Zhuravlev Faculty of Aeronautcal Engneerng, Moscow Avaton Insttute, Moscow, Russa Keywords: Passenger Arplane, Arcraft Fleet, Operatonal

More information

MALAY ARABIC LETTERS RECOGNITION AND SEARCHING

MALAY ARABIC LETTERS RECOGNITION AND SEARCHING Internatonal Journal of Scence and Appled echnology MALAY ARABIC LEERS RECOGNIION AND SEARCHING *Correspondng author Sukamto 1, Elfzar 2*, Mara Erna 3 1 Informaton System Department, Unversty of Rau, Indonesa

More information

Implementation of Supplier Evaluation and. Ranking by Improved TOPSIS

Implementation of Supplier Evaluation and. Ranking by Improved TOPSIS Appled Mathematcal Scences, Vol. 7, 2013, no. 46, 2265 2270 HIKARI Ltd, www.m-hkar.com Implementaton of Suppler Ealuaton and Rankng by Improed TOPSIS C. Katha Department of Mathematcs Sathyabama Unersty,

More information

A new model for predicting the thermal and electrical performance of solid-oxide fuel cell

A new model for predicting the thermal and electrical performance of solid-oxide fuel cell A MODEL FOR SIMULATING THE THERMAL AND ELECTRICAL PRODUCTION OF SMALL-SCALE SOLID-OXIDE FUEL CELL COGENERATION SYSTEMS WITHIN BUILDING SIMULATION PROGRAMS Ian Beausolel-Morrson, Ph.D., ASHRAE Member (correspondng

More information

Modeling of a Three-Echelon Supply Chain: Stability Analysis and Synchronization Issues

Modeling of a Three-Echelon Supply Chain: Stability Analysis and Synchronization Issues Modelng of a Three-Echelon Supply Chan: Stablty Analyss and Synchronzaton Issues K.R. Anne, J.C. Chedjou, S.K. Bhagavatula, K.Kyamakya Insttute for Smart Systems-Technologes Unversty of Klagenfurt Klagenfurt,

More information

Study on Solar-Assisted Cascade Refrigeration System

Study on Solar-Assisted Cascade Refrigeration System Avalable onlne at www.scencedrect.com Energy Proceda 16 (2012) 1503 1509 2012 Internatonal Conference on Future Energy, Envronment, and Materals Study on Solar-Asssted Cascade Refrgeraton System Ln Wang,

More information

Life Cycle Exergy Analysis of Wind Power

Life Cycle Exergy Analysis of Wind Power Lfe Cycle Exergy Analyss of Wnd Power G. Wall Department of Culture, Energy and Envronment Unversty of Gotland Cramérgatan 3, SE-621 67, Vsby, Sweden Emal: gw@exergy.se Abstract Exergy concepts and exergy

More information

Comparison of the USLE, RUSLE1.06c, and RUSLE2 for Application to Highly Disturbed Lands

Comparison of the USLE, RUSLE1.06c, and RUSLE2 for Application to Highly Disturbed Lands Comparson of the USLE, RUSLE1.06c, and RUSLE2 for Applcaton to Hghly Dsturbed Lands George R. Foster, Terrence E. Toy, Kenneth G. Renard Abstract RUSLE1.06c and RUSLE2, recently released eroson predcton

More information

Control of Heat and Humidity in German Mines

Control of Heat and Humidity in German Mines 357 Control of Heat and Humdty n German Mnes Dr. Wolfgang Schlotte DMT-Gesellschaft fr Forschung und PrUfung mbh ProTec Dvson: Fre and Exploson Protecton, Clmate Franz-Fscher-Weg 61,4537 Essen, Germany

More information

Modelling the Two-Stage Pyrolysis Gasoline Hydrogenation

Modelling the Two-Stage Pyrolysis Gasoline Hydrogenation European Symposum on Computer Arded Aded Process Engneerng 15 L. Pugjaner and A. Espuña (Edtors) 2005 Elsever Scence B.V. All rghts reserved. Modellng the Two-Stage Pyrolyss Gasolne Hydrogenaton Navd Mostouf*,

More information

720 IEEE TRANSACTIONS ON SUSTAINABLE ENERGY, VOL. 6, NO. 3, JULY k 1,k 2. p min. i p max. t m. u it. e c t g it s t

720 IEEE TRANSACTIONS ON SUSTAINABLE ENERGY, VOL. 6, NO. 3, JULY k 1,k 2. p min. i p max. t m. u it. e c t g it s t 720 IEEE TRANSACTIONS ON SUSTAINABLE ENERGY, VOL. 6, NO. 3, JULY 2015 Generaton Dspatch Technques for Remote Communtes Wth Flexble Demand Juan Claver, Franços Bouffard, Senor Member, IEEE, Dmtry Rmorov,

More information

Study on Multi-objective Optimization Model of Inventory Control and Supplier Selection Problem Under Uncertainty

Study on Multi-objective Optimization Model of Inventory Control and Supplier Selection Problem Under Uncertainty Study on Mult-objectve Optmzaton Model of Inventory Control and Suppler Selecton Problem Under Uncertanty June, 201 3 D O C T OR OF E N G INEERING D c k y F a t r a s T O Y O HASHI U N I VERSITY OF TECHNOLOGY

More information

Towards the Interactive Effects of Demand Response Participation on Electricity Spot Market Price

Towards the Interactive Effects of Demand Response Participation on Electricity Spot Market Price Towards the Interactve Effects of Demand Response Partcpaton on Electrcty Spot Market Prce Saeed Mohajeryam, Mlad Doostan, Seyedmahd Moghadas Energy Producton and Infrastructure Center (EPIC) Electrcal

More information

Objectives Definition

Objectives Definition Pod Product, Servces, and ng Strateges Chapter 9 Objectves Be able to defne product and dk know the major classfcatons of products and servces. Understand the decsons companes make regardng ther ndvdual

More information

NBER WORKING PAPER SERIES HOW LARGE ARE THE IMPACTS OF CARBON MOTIVATED BORDER TAX ADJUSTMENTS. Yan Dong John Whalley

NBER WORKING PAPER SERIES HOW LARGE ARE THE IMPACTS OF CARBON MOTIVATED BORDER TAX ADJUSTMENTS. Yan Dong John Whalley NBER WORKING PAPER SERIES HOW LARGE ARE THE IMPACTS OF CARBON MOTIVATED BORDER TAX ADJUSTMENTS Yan Dong John Whalley Workng Paper 15613 http://www.nber.org/papers/w15613 NATIONAL BUREAU OF ECONOMIC RESEARCH

More information

A Multi-Agent-based RFID Framework for Smart-object Applications

A Multi-Agent-based RFID Framework for Smart-object Applications A Mult-Agent-based RFID Framework for Smart-object Applcatons Ch-Kong Chan, Harry K. H. Chow, Wnson S. H. Su, Hung Lam Ng, Terry H. S. Chu, and Henry C. B. Chan Abstract Coupled wth software agent technology,

More information

The Study on Evaluation Module Architecture of ERP for Chemical Enterprises Yongbin Qin 1, 2, a, Jiayin Wei 1, b

The Study on Evaluation Module Architecture of ERP for Chemical Enterprises Yongbin Qin 1, 2, a, Jiayin Wei 1, b Internatonal Conference on Educaton Technology and Informaton System (ICETIS 2013) The Study on Evaluaton Module Archtecture of ERP for Chemcal Enterprses Yongbn Qn 1, 2, a, Jayn We 1, b 1 College of Computer

More information

Smart Grid Congestion Management Through Demand Response

Smart Grid Congestion Management Through Demand Response Smart Grd Congeston Management Through Demand Response J. Hazra, Kaushk Das, and Deva P Seetharam IBM Inda Research Emal:{jahazra1,kausdas8,dseetharam}@n.bm.com Abstract Ths paper proposes a novel cost-effectve

More information

Dwelling Selection by Applying VIKOR and Fuzzy AHP Method

Dwelling Selection by Applying VIKOR and Fuzzy AHP Method DOI: 0.7763/IPEDR. 203. V63. 6 Dwellng Selecton by Applyng VIKOR and Fuzzy AHP Method Thoedtda Thpparat and Thongpoon Thaseepetch 2 Department o Constructon Management, Faculty o Engneerng and Archtecture,

More information

Green Certificates and Market Power on the Nordic Power Market

Green Certificates and Market Power on the Nordic Power Market Green Certfcates and Market Power on the Nordc Power Market By Erk S. Amundsen 1 and Lars Bergman 2 Abstract: Many countres have started to desgn and ntroduce systems of Tradable Green Certfcates (TGCs

More information

Computational Solution to Economic Operation of Power Plants

Computational Solution to Economic Operation of Power Plants Electrcal and Electronc Engneerng 013, 3(6): 139-148 DOI: 10.593/j.eee.0130306.01 Computatonal Soluton to Economc Operaton of ower lants Temtope Adefarat 1,*, Ayodele Sunday Oluwole 1, Mufutau Adewolu

More information

BEHAVIOR BASED CONTROL AND FUZZY Q-LEARNING FOR AUTONOMOUS MOBILE ROBOT NAVIGATION

BEHAVIOR BASED CONTROL AND FUZZY Q-LEARNING FOR AUTONOMOUS MOBILE ROBOT NAVIGATION 572 BEHAVIOR BASE COTROL A FUZZY Q-LEARIG FOR AUTOOMOUS MOBILE ROBOT AVIGATIO Kharul Anam 1,3, Son Kuswad 2,Rusdhanto Effend 3 1 epartment of Electrcal Engneerng, Faculty of Engneerng, Unversty of Jember,

More information

Software Design for Life Cycle Analysis of a Stand-Alone PV System in Turkey

Software Design for Life Cycle Analysis of a Stand-Alone PV System in Turkey Software Desgn for Lfe Cycle Analyss of a Stand-Alone PV System n Turkey İRFAN GÜNEY, NEVZAT ONAT, GÖKHAN KOÇYİĞİT* *Techncal Educaton Faculty, Department of Electrcal Educaton Marmara Unversty Göztepe

More information

Hypothetical flood compution for a stream system 1

Hypothetical flood compution for a stream system 1 Hypothetcal flood computon for a stream system 1 Leo R. Beard 2 ABSTRACT: One of the computer packages beng developed n The Hydrologe Engneerng Center of the Corps of Engneers s the Flood Hydrograph Package,

More information

Dynamic Strategic Interaction: A Synthesis of Modeling Methods by Timothy J. Richards 1

Dynamic Strategic Interaction: A Synthesis of Modeling Methods by Timothy J. Richards 1 Dynamc Strategc Interacton: A Synthess of Modelng Methods by Tmothy J. Rchards 1 Agrbusness n the western U.S. no longer conssts only of atomstc producers sellng nto homogeneous commodty markets. Rather,

More information

Key Words: dairy; profitability; rbst; recombinant bovine Somatotropin.

Key Words: dairy; profitability; rbst; recombinant bovine Somatotropin. AgBoForum Volume 4, Number 2 2001 Pages 115-123 THE ESTIMATED PROFIT IMPACT OF RECOMBINANT BOVINE SOMATOTROPIN ON NEW YORK DAIRY FARMS FOR THE YEARS 1994 THROUGH 1997 Loren W. Tauer 1 Data from New York

More information

Supplier Quality Performance Measurement System*

Supplier Quality Performance Measurement System* Suppler Qualty Performance Measurement System* LIU Yumn School of Busness, Zhengzhou Unversty, P.R.Chna, 45000 Abstract Qualty performance s excellent performance that organzatons reach to hgh qualty at

More information

International Journal of Engineering & Technology Sciences Volume 03, Issue 06, Pages , 2015

International Journal of Engineering & Technology Sciences Volume 03, Issue 06, Pages , 2015 Internatonal Journal of Engneerng & Technology Scences Volume 03, Issue 06, Pages 372-381, 2015 ISSN: 2289-4152 Evaluaton of Intensty and Structural Effects on Energy Consumpton Trend n Ngera Usng the

More information

Long term performance of continuous wood-concrete-composite systems

Long term performance of continuous wood-concrete-composite systems Long term performance of contnuous wood-concrete-composte systems Leander A. Bathon Professor, Dept. of Archtecture and Cvl Engneerng, FH Wesbaden Unversty of Appled Scences, Wesbaden, Germany, bathon@t-onlne.de

More information

Modeling of flat-sheet and spiral-wound nanofiltration configurations and its application in seawater nanofiltration

Modeling of flat-sheet and spiral-wound nanofiltration configurations and its application in seawater nanofiltration Modelng of flat-sheet and spral-wound nanofltraton confguratons and ts applcaton n seawater nanofltraton The MIT Faculty has made ths artcle openly avalable. Please share how ths access benefts you. Your

More information

Available online at Procedia Engineering 7 (2010) Procedia Engineering 00 (2010)

Available online at  Procedia Engineering 7 (2010) Procedia Engineering 00 (2010) Avalable onlne at www.scencedrect.com Proceda Engneerng 7 (2010) 256 264 Proceda Engneerng 00 (2010) 000 000 Proceda Engneerng www.elsever.com/locate/proceda www.elsever.com/locate/proceda 2010 Symposum

More information

USING CONTESTS FOR ENGINEERING SYSTEMS DESIGN: A STUDY OF AUCTIONS AND FIXED- PRIZE TOURNAMENTS

USING CONTESTS FOR ENGINEERING SYSTEMS DESIGN: A STUDY OF AUCTIONS AND FIXED- PRIZE TOURNAMENTS INTERNATIONAL DESIGN CONFERENCE - DESIGN 2016 Dubrovnk - Croata, May 16-19, 2016. USING CONTESTS FOR ENGINEERING SYSTEMS DESIGN: A STUDY OF AUCTIONS AND FIXED- PRIZE TOURNAMENTS A. M. Chaudhar, J. D. Theknen

More information

LRm Laboratory for Responsible Manufacturing

LRm Laboratory for Responsible Manufacturing LRm Laboratory for Responsble Manufacturng Bblographc Informaton Udomsawat, G., Gupta, S. M. and Al-Turk, Y. A. Y., "Push and Pull Control Systems n Dsassembly Lnes", Proceedngs of the 2004 Decson Scences

More information

A Modelling Framework for the Acquisition and Remanufacturing of Used Products

A Modelling Framework for the Acquisition and Remanufacturing of Used Products A Modellng Framework for the Acquston and Remanufacturng of Used Products Yanns Nkolads Department of Technology Management Unversty of Macedona, 5900 Naoussa, Greece tel: +30 330 5460 e-mal address: nkolads@uowm.gr

More information

Do Competing Suppliers Maximize Profits as Theory Suggests? An Empirical Evaluation

Do Competing Suppliers Maximize Profits as Theory Suggests? An Empirical Evaluation Unversty of Massachusetts Boston ScholarWorks at UMass Boston Management Scence and Informaton Systems Faculty Publcaton Seres Management Scence and Informaton Systems January 2015 as Theory Suggests?

More information

Chapter 11 INTERNATIONAL PRODUCTIVITY COMPARISONS AT THE INDUSTRY LEVEL. Hans Gersbach Alfred Weber-Institut, Universität Heidelberg 1

Chapter 11 INTERNATIONAL PRODUCTIVITY COMPARISONS AT THE INDUSTRY LEVEL. Hans Gersbach Alfred Weber-Institut, Universität Heidelberg 1 Chapter 11 INTERNATIONAL PRODUCTIVITY COMPARISONS AT THE INDUSTRY LEVEL Introducton by Hans Gersbach Alfred Weber-Insttut, Unverstät Hedelberg 1 As more and more ndustres experence the globalsaton of busness

More information

THERMAL RADIATION MODELLING OF DC SMELTING FURNACE FREEBOARDS

THERMAL RADIATION MODELLING OF DC SMELTING FURNACE FREEBOARDS THERMAL RADIATION MODELLING OF DC SMELTING FURNACE FREEBOARDS Q. Reynolds Mnte, Prvate Bag X3015, Randburg, 2125, South Afrca E-mal for correspondence: qunnr@mnte.co.za Abstract The problem of radaton

More information

An Analysis of Auction Volume and Market Competition for the Coastal Forest Regions in British Columbia

An Analysis of Auction Volume and Market Competition for the Coastal Forest Regions in British Columbia An Analyss of Aucton Volume and Market Competton for the Coastal Forest Regons n Brtsh Columba Susan Athey, Peter Cramton, and Allan Ingraham 1 Market Desgn Inc. and Crteron Auctons 0 September 00 The

More information

Cement and Concrete Research

Cement and Concrete Research Cement and Concrete Research 38 (2008) 1246 1259 Contents lsts avalable at ScenceDrect Cement and Concrete Research journal homepage: http://ees.elsever.com/cemcon/default.asp A new mx desgn concept for

More information

Bulletin of Energy Economics.

Bulletin of Energy Economics. Bulletn of Energy Economcs http://www.tesdo.org/journaldetal.aspx?id=4 Energy Intensty and Technology Sourcng: A Study of Manufacturng Frms n Inda Santosh Kumar Sahu a,, K. Narayanan b a Madras School

More information

ScienceDirect. Influence of outdoor air conditions on the air source heat pumps performance. Pamela Vocale a, *, Gian Luca Morini b, Marco Spiga a

ScienceDirect. Influence of outdoor air conditions on the air source heat pumps performance. Pamela Vocale a, *, Gian Luca Morini b, Marco Spiga a Avalable onlne at www.scencedrect.com ScenceDrect Energy Proceda 45 ( 214 ) 653 662 68th Conference of the Italan Thermal Machnes Engneerng Assocaton, ATI213 Influence of outdoor ar condtons on the ar

More information

A Category Role Aided Market Segmentation Approach to Convenience Store Category Management

A Category Role Aided Market Segmentation Approach to Convenience Store Category Management A Category Role Aded Market Segmentaton Approach to Convenence Store Category Management Yongje Ye 1, Shuhua Han Abstract Ths paper presents an nnovatve market segmentaton model whch s drven by category-role,

More information

An Example (based on the Phillips article)

An Example (based on the Phillips article) An Eample (based on the Phllps artcle) Suppose ou re the hapless MBA, and ou haven t been fred You decde to use IP to fnd the best N-product soluton, for N = to 56 Let be 0 f ou don t produce product,

More information