Analysis of Wound Rotor Self-Excited Induction Generators
|
|
- Adrian Briggs
- 6 years ago
- Views:
Transcription
1 nd WSEAS Int. Conf. on CICUITS, SYSTEMS, SIGNA and TEECOMMUNICATIONS (CISST'8)Aapulo, Mexio, January 5-7, 8 Analysis of Wound otor Self-Exited Indution Generators.S. Sandhu (Professor) & S.P.Jain (Professor) Eletrial Engineering Department National Institute Of Tehnology, urukshetra-369 Haryana, India kjssandhu@yahoo.om, kjssandhu@rediffmail.om Abstrat Self-exited indution generators are found to be to be most suitable mahines for wind energy onversion in remote and windy areas due to several advantages over grid onneted mahines. Suh mahine exhibits poor performane in terms of voltage and frequeny under frequent variations of operating speeds, whih is a ommon feature in wind energy onversion. In this paper an attempt has been made to propose a simple model for the ontrol of wound rotor self-exited indution generator. Simulated results as obtained have been ompared with results on a test mahine and found to be in lose agreement. ey-words Indution Generator, enewable Generation, Steady State Analysis (SSA), Self- Exited Indution Generator, Wind Energy Generation, NOMENCATUE a per unit frequeny b per unit speed stator reatane per phase rotor reatane per phase, referred to stator apaitive reatane due to C at rated frequeny C E E exitation apaitane per phase air gap voltage per phase at rated frequeny rotor emf per phase referred to stator E a air gap voltage per phase= ae f I rated frequeny stator urrent per phase I rotor urrent per phase, referred to stator I load urrent per phase I m magnetizing urrent per phase P out output power ext s V load resistane per phase stator resistane per phase rotor resistane per phase, referred to stator external rotor resistane per phase, referred to stator generator slip terminal voltage per phase m magnetizing reatane per phase at rated frequeny. Introdution Continuous redution of onventional soures of energy as well as growing power demand has diverted the attention of sientists towards the non-onventional soures of energy suh as wind energy, solar energy, tidal energy, geothermal energy and biogas. enewal energy is expeted to reate maximum impat in the prodution of eletriity. Projetions indiate that by the end of the first deade of the new entury, it would be ost effetive to generate and supply renewable eletriity. Besides grid supply augmentation, renewable eletri tehnologies offer possibilities of distributed generation at or near points of use, whih an redue peak loads and save on ostly up gradation and maintenane of transmission and distribution networks. Out of these wind energy is the fastest growing area of all renewable energy resoures and is attrative and viable. Man is utilizing wind power for the last 3 years. Earlier it was used to provide mehanial power to pump water or to grind grains. In early 97s with a sharp rise in oil pries, interest in wind power reemerged. However by the end of 99s, wind power beame as one of the sustainable energy resoure. No other renewable energy based eletriity produing tehnology has attained the same level of maturity as wind power. There are no major tehnial barriers to Page 64 ISBN:
2 nd WSEAS Int. Conf. on CICUITS, SYSTEMS, SIGNA and TEECOMMUNICATIONS (CISST'8)Aapulo, Mexio, January 5-7, 8 large-sale penetration of wind power. It also offers an attrative investment option to the private setor for power generation. It is observed that winds arry enormous amount of energy and ould meet suffiient energy needs of the world. The regions in whih strong winds prevail for a suffiient time during the year may use wind energy profitable for different purposes. It has been found that ost of wind generation is omparable to that of hydro and thermal plants. There is a little doubt that while the ost of wind generation would be even lower in the oming years; the pries of fossil fuels used by thermal plants would definitely go up. In view of high apital onstrutional ost hydel power would be dearer too. In addition to this wind energy generation provides a lean and pollution free environment. It does not lead to global warming and ozone depletion. No hazardous waste is reated. Further a wind turbine generator may be a very worthwhile proposition for an isolated and remote area. Appliation of indution generators is well known to extrat the wind energy through turbines. Self-exited indution generators (SEIG) are found to be most suitable for many appliations inluding wind energy onversion systems. Suh generators may also be used in the remote areas in the absene of grid. SEIG has many advantages suh as brush less onstrution (squirrel-age rotor), redued size, absene of DC power supply for exitation as in onventional generators, redued maintenane ost, self short-iruit protetion apability and no synhronizing problem. Steady state equivalent iruit representation and mathematial modelling is requred to evaluate the steady-state performane of a SEIG feeding a speifi load. In order to estimate the performane of a SEIG, researhers have made use of the onventional equivalent iruit of an indution motor. Some of them [-6] used the impedane model, and a few [7-] used the admittane-based model for suh results. However it has been felt that the old onventional equivalent iruit model, in the absene of an ative soure, does not effetively orrespond to generator operation. Therefore [] suggested a new iruit model for the representation of indution generator. Further it is found that suh mahine exhibits poor performane in terms of voltage and frequeny under frequent variations of operating speeds, whih is a ommon feature in wind energy onversion. However suh variations in operating speeds may be ompensated by proper handling of rotor resistane & it is possible only in ase of wound rotor mahines. Therefore, in this paper an attempt has been made to propose a simple model for the steady state analysis and ontrol of wound rotor self-exited indution generator. Simulated results as obtained have been ompared with results on a test mahine and found to be in lose agreement. e /s I ja E a O ja I m ja m I -j /a Fig.. Per phase equivalent iruit representation for wound rotor self-exited indution generator. e = + ext Analysis of real omponents at node O gives; I real =I real O e s + s e a + After rearrangement it gives; = () e + e + = () Where, = = s( + ) = a = a s = + = a a = a + + I V. Steady State Equivalent Ciruit Model The steady-state operation of wound rotor self-exited generator may be analyzed by using an equivalent iruit representation as shown in Fig.. & b = a (+ s) (3) Page 65 ISBN:
3 nd WSEAS Int. Conf. on CICUITS, SYSTEMS, SIGNA and TEECOMMUNICATIONS (CISST'8)Aapulo, Mexio, January 5-7, 8 Analysis of imaginary omponents at node O gives; I m +I imag +I imag = This gives; m = sa ( ) + (4) + a Equation (), (3) & (4) may be used to determine the rotor resistane to ahieve onstant voltage, onstant frequeny operation for a given operating speed, exitation apaitane and load resistane. m as obtained may be used to determine the value of air gap voltage using Appendix-. 3. esults & disussions Figure & Figure3 shows the omparison of simulated & results on indution mahine (Appendix-). Close agreement between the two, proves the validity of proposed modeling. E voltage/phase(volt) load urrent/phase(amp) Fig. 3 Variation of voltage with load, exitation apaitane=.53 pu rpm 4rpm 5rpm 55 frequeny(hz) rpm 4rpm 5rpm load urrent/phase(amp) Fig. Variation of frequeny with load, exitation apaitane=.53 pu Table gives the estimated values of external resistane required in rotor iruit to ontrol the terminal voltage and frequeny for variable speed operation. This gives an opportunity to ontrol the terminal onditions (Voltage=.7pu & Freq.=.pu) under unregulated speed operations for indution generator. Page 66 ISBN:
4 nd WSEAS Int. Conf. on CICUITS, SYSTEMS, SIGNA and TEECOMMUNICATIONS (CISST'8)Aapulo, Mexio, January 5-7, 8 Table Estimation of external rotor resistane to maintain terminal voltage and frequeny C=pu, =pu Speed (pu) ext (pu) Terminal frequeny (pu) Terminal Voltage (pu) Page 67 ISBN:
5 nd WSEAS Int. Conf. on CICUITS, SYSTEMS, SIGNA and TEECOMMUNICATIONS (CISST'8)Aapulo, Mexio, January 5-7, 8 []. S. Sandhu, Iterative model for the analysis of self-exited indution generators, Eletri Power Components and Systems, vol. 3, no., 3, pp []. S. Sandhu and S.. Jain, Operational aspets of self-exited indution generator using a new model, Eletri Mahines and Power Systems, vol. 7, no.,999, pp Conlusion In this paper an attempt has been made to propose a simple model for the steady state analysis of wound rotor selfexited indution generator. Closeness between simulated and omputed results proves the validity of proposed modelling. Further this modelling gives an opportunity to ontrol the terminal voltage and frequeny by proper handling of external resistane in the rotor iruit. Appendix- 3-phase, 4-pole, 5 Hz, wound rotor indution mahine 7 kw, Stator - 4/3 V, 4.7/5.4 A otor (Y)- V, 9.5 A Parameters =.5 ohm, =.96 ohm, = =.6 ohms Air gap voltage Pieewise segmentation of magnetization harateristis of mahine results in to, m < 5. E = m 83.8 > m 5. E = m 95. > m 83.8 E = m 6.> m 95. E =6.44. m m 6. E = Base values Base voltage=3 volt Base urrent=4.7 A Base impedane=5.7 ohm Base apaitane=.6 µf Base frequeny=5 Hz Base speed=5 rpm eferenes [] S. S. Murthy, O. P. Malik, and A..Tandon, Analysis of self-exited indution generators, Pro. IEE,vol. 9,pt. C, no. 6,98, pp [] G. aina and O. P. Malik, Wind energy onversion using a selfexited indution generator, IEEE Trans. Power Apparatus and Systems, vol. PAS-, no.,983,pp [3] A.. Tandon, S. S. Murthy and C. S. Jha, New method of omputing steady-state response of apaitor self-exited indution generator, IE(I) Journal-E, vol. 65,985, pp [4] N. H. Malik and S. E. Haque, Steady-state analysis and performane of an isolated self-exited indution generator, IEEE Trans. Energy Conversion,vol.EC-,no.3, 986,pp [5] N. H. Malik and A. H. Al-Bahrani, Influene of the terminal apaitor on the performane harateristis of a self-exited indution generator, Pro. IEE, vol.37,pt.c, no., 99, pp [6] T. F. Chan, Steady-state analysis of self-exited indution generators, IEEE Trans. Energy Conversion, vol. 9, no.,994, pp [7].Quazene and G. MPherson, Analysis of the isolated indution generator, IEEE Trans. Power Apparatus and Systems, vol. PAS-, no. 8, 983, pp [8] T. F. Chan, Analysis of self-exited indution generators using an iterative method, IEEE Trans. Energy Conversion, vol. no. 3,995,pp [9] I. A. M. Abdel-Halim, M. A. Al-Ahmar, and M. Z. El-Sherif, A novel approah for the analysis of self-exited indution generator, Eletri Mahines and Power Systems, vol. 7,999, pp Page 68 ISBN:
Active and Reactive Power Control of a Variable Speed Wind Energy Conversion System based on Cage Generator
Vol. 8 No. 9 7 Ative and Reative Power Control of a Variable Speed Wind Energy Conversion System based on Cage Generator Mazhar Hussain Baloh Engineering MUET Khairpur Mir s Campus Pakistan Waqas Ahmed
More informationEffect of Variation of Fuel Composition on Gas Turbine Off-Design Performance
Applied Mehanis and Materials Submitted: 2014-08-28 ISSN: 1662-7482, Vol. 666, pp 194-198 Aepted: 2014-08-28 doi:10.4028/www.sientifi.net/amm.666.194 Online: 2014-10-20 2014 Trans Teh Publiations, Switzerland
More informationDEVELOPMENT AND INVESTIGATION OF A SYMMETRIC INDUCTION HEATING UNIT FOR SPHERICAL SHAPE METAL WARE
Journal of Chemial Sergey Tehnology S. Titov, Vitor and Metallurgy, N. Meshheryakov 53, 5, 2018, 1009-1016 DEVELOPMENT AND INVESTIGATION OF A SYMMETRIC INDUCTION HEATING UNIT FOR SPHERICAL SHAPE METAL
More informationGenerating Light from Stoves using a Thermoelectric Generator
Generating Light from Stoves using a Thermoeletri Generator Dan Mastbergen, dmast@engr.olostate.edu Dr. Bryan Willson, Bryan.Willson@olostate.edu Engines and Energy Conversion Laboratory Department of
More informationLOW FREQUENCY BUCKETS FOR INDUSTRIAL STEAM TURBINES by
LOW FREQUENCY BUCKETS FOR INDUSTRIAL STEAM TURBINES by Firm L. Weaver Engineering Consultant Sun City Center, Florida Firm L. Weaver graduated from Roanoke Coll ege, in Salem, Virginia, with a B.S. degree
More informationCreep Analysis of Aluminum Alloy Disk Experiment for High Speed Energy Storage Flywheel
Creep Analysis of Aluminum Alloy Disk Experiment for High Speed Energy Storage Flywheel YangXU, HanYU, ZupeiSHEN Tsinghua Univ. CHINA Abstrat: In order to ahieve higher speed and higher energy density,
More informationDesigning 1 kw PEMFC APU for 4 passenger vehicle
Projet Report 2008 TRRF05 Fuel Cell Tehnology Deember 7 th, 2008 Designing 1 kw PEMFC APU for 4 passenger vehile Munir Ahmed Khan Department of Energy Sienes, Faulty of Engineering Lund University, Box
More informationEnergy Saving Opportunities through Heat Recovery from Cement Processing Kilns: A Case Study
Energy Saving Opportunities through Heat Reovery from Cement Proessing Kilns: A Case Study I. I. AL-HINTI a, A. AL-GHANDOOR b, A. AL-NAJI, M. ABU-KHASHABEH, M. JOUDEH, M. AL-HATTAB a Department of Mehanial
More informationTEMPERATURE ADAPTIVE CONTROL USING THE ADDITIVE MANUFACTURING FOR INJECTION MOLDING POLYMERIC PRODUCTS
5 th International Conferene Advaned Composite Materials Engineering COMAT 2014 16-17 Otober 2014, Braşov, Romania TEMPERATURE ADAPTIVE CONTROL USING THE ADDITIVE MANUFACTURING FOR INJECTION MOLDING POLYMERIC
More informationPermanent Link:
Citation: Boswell, Brian and Chandratilleke, Tilak. 2009. Sustainable Metal Cutting, in TIC-STH ommittee (ed), 2009 IEEE Toronto International Conferene Siene and Tehnology for Humanity, Sep 26 2009. Ryerson
More informationPerformance analysis and improvement for CC-OTEC system
Journal o Mehanial Siene and Tehnology 22 (2008) 1977~1983 Journal o Mehanial Siene and Tehnology www.springerlink.om/ontent/1738-494x DOI 10.1007/s12206-008-0742-9 Perormane analysis and improvement or
More informationThermodynamic Analysis of Combined Cycle Power Plant
Thermodynami Analysis of Combined Cyle Power Plant A.K.Tiwari 1, Mohd Islam 2, M.N.Khan 3 1 Greater.Noida.Institute of Tehnology, Greater Noida, India. 2 Jamia Millia Islamia,New Delhi, India. 3 Krishna
More informationESTIMATION OF FRACTURE TOUGHNESS OF THE OXIDE SCALES. Jozef HRABOVSKÝ, Petr LOŠÁK, Jaroslav HORSKÝ
ESTIMATION OF FRACTURE TOUGHNESS OF THE OXIDE SCALES Jozef HRABOVSKÝ, Petr LOŠÁK, Jaroslav HORSKÝ Heat Transfer and Fluid Flow Laboratory, Faulty of Mehanial Engineering, VUT Brno, Tehniká 2, 616 69 Brno,
More informationEITF ABSTRACTS. To take advantage of new capabilities in electronic commerce and advances in computer
EITF ABSTRACTS Issue No. 97-13 Title: Aounting for Costs Inurred in Connetion with a Consulting Contrat or an Internal Projet That Combines Business Proess Reengineering and Information Tehnology Transformation
More informationInternational Journal of Research (IJR) e-issn: , p- ISSN: X Volume 3, Issue 01, January 2016
International Journal of Researh (IJR) Available at http://internationaljournalofresearh.org Study of failure probability by deterministi method reliability-strength applied to metal ables intended for
More informationFinite Element Modeling of Pre-Stressed Hollow Core Slabs
Current Siene International Volume : 04 Issue : 04 Ot.-De. 2015 Pages :596-603 Finite Element Modeling of Pre-Stressed Hollow Core Slabs 1 Ali N. Deeb, 2 M. Abou Zeid Tarkhan and 3 E. M. El-Tehewy 1 Syrian
More information~ Early Life
Measurements and reporting systems are established Suessful validation of the deployment triggers the launh of Early Life Support (ELS). 6.0 Deploy & Verify - Q)... E Q) t1 Ol Change.r::: t1 0 t1 (jj Ol
More informationKeywords: Greenhouse; Thermal performance; Water pipes heating; Infrared radiation; Energy balance; Heating efficiency
International Symposium Greensys 7 "High Tehnology for Greenhouse system Management" Naples Italy, 4-6 Otober 7 Investigation of the Potential of Infrared-radiation (IR) to Redue Energy Consumption in
More information[2009] IEEE. Reprinted, with permission, from Guo, Youguang; Zhu, Jianguo; Dorrell, David; Lu, Hai Yan; Wang, Yi. 2009, 'Development of a Claw Pole
[2009] IEEE. Reprinted, with permission, from Guo, Youguang; Zhu, Jianguo; Dorrell, David; Lu, Hai Yan; Wang, Yi. 2009, 'Development of a Claw Pole Permanent Magnet Motor with a Molded Low-Density Soft
More informationEconomic Assessment of Intensive Culture
Reprodued from JOURNAL OF FORESTRY, Vol. 76, No. 11, November 1978, by the FOREST SERVICE, U.S. Department of Agriulture, for offiial use. About This File:,. lhis file was reated by sanning the printed
More informationNo. 20 WORKING PAPER SERIES IN ECONOMICS THE IMPACT OF COMPETITION ON UNILATERAL INCENTIVES TO INNOVATE NADJA TRHAL
No. 0 U N I V E R S I T Y O F C O L O G N E WORKING PAPER SERIES IN ECONOMICS THE IMPACT OF COMPETITION ON UNILATERAL INCENTIVES TO INNOVATE NADJA TRHAL Department of Eonomis University of Cologne Albertus-Magnus-Platz
More informationAPPLICATION OF BASE ISOLATION IN HIGH VOLTAGE ELECTRICAL EQUIPMENT.
The th World Conferene on Earthquake Engineering Otober 7, 8, Beijing, China APPLICATION OF BASE ISOLATION IN HIGH VOLTAGE ELECTRICAL EQUIPMENT ABSTRACT: Han Junke, Zhang Chunlei, Yang Fengli, Cao Meigen
More informationThermal Analysis of Open-Cycle Regenerator Gas-Turbine Power-Plant
Thermal Analysis of Open-Cyle Regenerator Gas-Turbine Power-Plant M. M. Rahman, Thamir K. Ibrahim, M. Y. Taib, M. M. Noor, K. Kadirgama and Rosli A. Bakar Abstrat Regenerative gas turbine engine yle is
More informationComparative Quality And Performance Analysis Of Manual And Motorised Traditional Portable Rice Threshers
Comparative Quality And Performane Analysis Of Manual And Motorised Traditional Portable Rie Threshers Olumuyiwa B. Ajayi 1 Buliaminu Kareem 2 Olanrewaju R. Bodede 3* Oluwasiji F. Adeoye 4 1, 3, 4. Department
More informationCarbon Dioxide Capture & Conversion (CO 2 CC) Program A Membership Program offered by The Catalyst Group Resources (TCGR)
Carbon Dioxide Capture & Conversion (CO 2 CC) Program A Membership Program offered by The Catalyst Group Resoures (TCGR) 2018 P.O. Box 680 Spring House, PA 19477 USA Tel: (215) 628-4447 Fax: (215) 628-2267
More informationLimit states for the damage assessment of bridges supported on LRB bearings
Journal of Physis: Conferene Series PAPER OPEN ACCESS Limit states for the damage assessment of bridges supported on LRB bearings To ite this artile: M Jara et al 05 J. Phys.: Conf. Ser. 68 0046 View the
More informationMODELING FLEXIBLE PACKAGE/GRANULAR MATERIAL INTERATION THROUGH COMBINATION OF DISCRETE ELEMENT METHOD (DEM) AND FINITE ELEMENT METHOD (FEM)
MODELING FLEXIBLE PACKAGE/GRANULAR MATERIAL INTERATION THROUGH COMBINATION OF DISCRETE ELEMENT METHOD (DEM) AND FINITE ELEMENT METHOD (FEM) Wenbo Xu, Pavan Valavala, Mark Mirgon, Sam Crabtree, Lori Kardos,
More information(This is a sample cover image for this issue. The actual cover is not yet available at this time.)
(This is a sample over image for this issue. The atual over is not yet available at this time.) This artile appeared in a journal published by Elsevier. The attahed opy is furnished to the author for internal
More informationMechanical Properties of High-Strength Concrete Manish Kumar 1, A.M. ASCE; Zhaoyu Ma 2 ; Moses Matovu 2
1.1 Introdution Mehanial Properties of High-Strength Conrete Manish Kumar 1, A.M. ASCE; Zhaoyu Ma 2 ; Moses Matovu 2 Mehanial properties of High-Strength Conrete (HSC) an be divided in two groups as shortterm
More informationWaste Shell Husks Concrete: Durability, Permeability and Mechanical Properties
Journal of Building Constrution and Planning Researh, 2013, 1, 61-66 http://dx.doi.org/10.4236/jbpr.2013.13009 Published Online September 2013 (http://www.sirp.org/journal/jbpr) 61 Waste Shell Husks Conrete:
More informationDetection of empty grate regions in firing processes using infrared cameras
11 th International Conferene on Quantitative InfraRed Thermography Detetion of empty grate regions in firing proesses using infrared ameras by J. Matthes*, P. Waibel* and H.B. Keller* *Institute for Applied
More informationENHANCEMENT OF MASS TRANSFER IN SOLID-LIQUID EXTRACTION BY PULSED ELECTRIC FIELD
Journal of the University of Chemial Niola Tehnology Shoilevand Metallurgy, 40, 4, 2005, 329-334 ENHANCEMENT OF MASS TRANSFER IN SOLID-LIQUID EXTRACTION BY PULSED ELECTRIC FIELD M. Savova 1, H. Bart 2,
More informationbuilding, and these researh results indiated that it is the double orner reession modifiation that redues RMS of aross-wind aerodynami fore by 40%, al
The Seventh International Colloquium on Bluff Body Aerodynamis and Appliations (BBAA7) Shanghai, China; September 2-6, 2012 Effets of orner reession modifiation on aerodynami oeffiients of square tall
More informationStudy of Service Models in Cloud Computing Manoj Kumar Dhruw
International Journal of Researh (IJR) Available at http://internationaljournalofresearh.org Study of Servie Models in Cloud Computing Manoj Kumar Dhruw Student, Bahelor of Engineering in Computer Siene
More informationDurability of bitumen mat used for increasing friction between concrete caisson and rock mound
Duraility of itumen mat used for inreasing frition etween onrete aisson and rok mound Masakazu Mayama Hokkaido Institute of Tehnology, Sapporo, Japan Tadahiro Imoto Civil Engineering Researh Institute
More informationModernization of casting magnetodynamic equipment
Modernization of asting magnetodynami equipment V Dubodelov, V Fikssen, M Slazhniev, M Goryuk, Iu Skorobagatko, E Seredenko, O Yashhenko To ite this version: V Dubodelov, V Fikssen, M Slazhniev, M Goryuk,
More informationMining Patterns to Support Software Architecture Evaluation
Mining Patterns to Support Software Arhiteture Evaluation Liming Zhu, Muhammad Ali Babar, oss Jeffery National ICT Australia Ltd. and University of New South Wales, Australia {limingz, malibaba, rossj}@se.unsw.edu.au
More informationSystem Dynamics Optimisation Approach to Irrigation Demand Management
Bureau of Meteorology From the SeletedWorks of Amgad Elmahdi 2005 System Dynamis Optimisation Approah to Irrigation Demand Management Amgad ELMAHDI Hetor Malano Teri Ethells Shahbaz khan Available at:
More informationNumerical Modeling and Experimental Investigation of the Failure Modes of the Cellular Foam Sandwich Structures
Journal of Metals, Materials and Minerals, Vol.18 No.2 pp.111-115, 2008 Numerial Modeling and Experimental Investigation of the Failure Modes of the Cellular Foam Sandwih Strutures Jörg FELDHUSEN 1, Sirihai
More informationA Novel and More Efficient Way to Grind Punching Tools
A Novel and More Effiient Way to Grind Punhing Tools P. Krajnik 1,, R. Drazumeri, J. A. Badger 3, C. M. Niolesu 1, J. Kopa 1 KTH Royal Institute of Tehnology, Prodution Engineering, Stokholm, Seden University
More informationBUILDINGS & PHOTOVOLTAICS GRID-CONNECTED PV-SYSTEMS
Bekaert ECD Solar Systems LLC R BUILDINGS & PHOTOVOLTAICS GRID-CONNECTED PV-SYSTEMS Unique Photovoltai Tehnology based on: Shingles Metal Roofing Framed Power Modules UNI-SOLAR ROOFING SYSTEMS The leader
More informationProduction Cost Optimization Model Based on CODP in Mass Customization
IJCSI International Journal of Computer Siene Issues, Vol. 0, Issue, No, January 03 www.ijcsi.org 60 Prodution Cost Optimization Model Based on CODP in Mass Customization Yanhong Qin, Yuanfang Geng Shool
More informationProposal for a new shear design method
Chapter 6 Proposal for a new shear design method The behaviour of beams failing in shear has been studied in the previous hapters, with speial attention paid to high-strength onrete beams. Some aspets
More informationAbstract. Technological Changes in Japanese Housing and Its Effects on Carbon Emissions
Tehnologial Changes in Japanese Housing and Its Effets on Carbon Emissions Gloria P. GERILLA 1 Researh Fellow Department of Civil Engineering, Saga University 1 Honjo, Saga, 840-8502, Japan Phone: +81-952-28-8830
More informationExperimental and Theoretical Deflections of Hybrid Composite Sandwich Panel under Four-point Bending Load
Civil Engineering Dimension, Vol. 19, No. 1, Marh 017, 9-5 ISSN 1410-950 print / ISSN 1979-570X online DOI: 10.9744/CED.19.1.9-5 Experimental and Theoretial Defletions of Hybrid Composite Sandwih Panel
More informationA New Tri-Generation System: Thermodynamical Analysis of a Micro Compressed Air Energy Storage
Journal of nergy and Power ngineering 10 (2016) 697-707 doi: 10.17265/1934-8975/2016.11.007 D DAVID PUBLISHING A New Tri-Generation System: Thermodynamial Analysis of a Miro Compressed Air nergy Storage
More informationWe re like money in the bank.
With our experiene, knowledge, and expertise, we re more than just a great way to measure effetiveness, maintain exellene, and identify opportunities for improvement. We re like money in the bank. Ahieving
More informationEuropean Regulations For Multilayer Food Contact Materials. Dr. Hermann Onusseit Henkel KGaA Düsseldorf, Germany ABSTRACT
European Regulations For Multilayer Food Contat Materials Dr. Hermann Onusseit Henkel KGaA Düsseldorf, Germany ABSTRACT Artiles and failities whih ome into ontat with food are subjet to speial demands.
More informationPost-Tensioned Two-Way Slab
The Medial Oie Building Malvern, PA 13 Post-Tensioned Two-Way Slab Introdution The Filigree beam system reates a thin lightweight loor system that leaves plenty o open plenum spae or mehanial and eletrial
More informationComprehensive Study of Lattice Cell Calculations for Thorium Based Fuel Cycle in Light Water Reactors Using SRAC Code
Comprehensive Study of Lattie Cell Calulations for Thorium Based Fuel Cyle in Light Water Reators Using SRAC Code Le Dai Dien, Ha Van Thong and Giang Thanh Hieu Institute for Nulear Siene and Tehnology,
More informationCOCCUS Farm 75 kw Small Biogas Plant for Livestock Farmers
COCCUS Farm 75 kw Small Biogas Plant for Livestok Farmers Plant tehnology Fig. similar COCCUS Farm 75 kw The COCCUS Farm 75 kw plant allows even small farms to reate a seondary soure of inome. COCCUS Farm
More informationWind Energy Assessment for Five Locations in Saudi Arabia
202 International Conferene on Future Environment and Energy IPCBEE vol.28(202) (202)IACSIT Press, Singapoore Wind Energy Assessment for Five Loations in Saudi Arabia Hassan M. Farh, Ali M. Eltamaly, Mohamed
More informationYield of spring barley mixtures as a function of varietal and environmental characteristics
Yield of spring barley mitures as a funtion of varietal and environmental harateristis Lars Kiær 1, Ib Skovgaard 2 and Hanne Østergård 1 1 Biosystems Department, Risø National Laboratory DTU, 4000 Roskilde,
More informationStatus Incentives. By TIMOTHY BESLEY AND MAITREESH GHATAK
Status Inentives By TIMOTHY BESLEY AND MAITREESH GHATAK When eonomists study inentives in organizations, the main fous has been on using monetary payments in exhange for performane on spei measurable dimensions.
More informationWATER USE EFFICIENCY OF IRRIGATED SUGARCANE AS AFFECTED BY ROW SPACING AND VARIETY
WATER USE EFFICIENCY OF IRRIGATED SUGARCANE AS AFFECTED BY ROW SPACING AND VARIETY F OLIVIER and A SINGELS South Afrian Sugar Assoiation Experiment Station, P/Bag X02, Mount Edgeombe, 4300, South Afria
More informationStrategic Outsourcing with Technology Transfer under Cournot Competition
Disussion Paper ERU/4 4 February, 4 Strategi Outsouring with Tehnology Transfer under Cournot Competition Tarun Kabiraj Indian Statistial Institute and Uday Bhanu Sinha ** Delhi Shool of Eonomis February,
More informationPASSIVE SOLAR ENERGY AS A FUEL
PASSIV SOLAR NRGY AS A FUL 199-21 A study of the urrent and future use of passive solar energy in buildings in the uropean Community. RPORT ON BACKGROUND MATRIAL AND RSARCH The Commission of the uropean
More informationCamber Variability in Prestressed Concrete Bridge Beams
CONCRETE BRIDGE TECHNOLOGY Camber Variability in Prestressed Conrete Bridge Beams by Dr. Maher Tadros, econstrut Beams ast with extra amber in storage yard at Conrete Tehnology Corporation; amber shown
More informationIntegrated optimization and multi-agent technology for combined production and transportation planning
Integrated optimization and multi-agent tehnology for ombined prodution and transportation planning Jan A. Persson 1 and Paul Davidsson 2 1 Blekinge Institute of Tehnology, Department Systems and Software
More informationREVENUE SHARING CONTRACT OR WHOLESALE PRICE CONTRACT? ANALYTICAL RESULTS FROM VARIOUS CHANNEL POWER ARRANGEMENTS IN A TOURISM SUPPLY CHAIN
REVENUE SHARING CONTRACT OR WHOLESALE PRICE CONTRACT? ANALYTICAL RESULTS FROM VARIOUS CHANNEL POWER ARRANGEMENTS IN A TOURISM SUPPLY CHAIN n, College of Business, Washington State University, Wilson Road,
More informationEnergy Savings from Increased Preventive Maintenance on Indiana Highways
TRANSPORTATION RESEARCH RECORD 112 27 Energy Savings from Inreased Preventive Maintenane on Indiana Highways EssAM A. SHARAF AND KuMARES C. SINHA In this paper are desribed the development of trade-off
More informationA Capillary Pressure Model for Geothermal Reservoirs
Geothermal Resoures Counil Transations, Vol. 26, September 2002 A Capillary ressure Model for Geothermal Reservoirs Kewen Li and Roland N. Horne Stanford Geothermal rogram, Stanford University (kewenli@stanford.edu)
More informationWe re bottom-line smart.
Somewhere in the mid-east, a major oil ompany is using our independent, tehnology assessment of projet ativities that will aelerate their time-to-ompletion. We re bottom-line smart. Carmagen Engineering
More informationUSING REAL-TIME INFORMATION IN PRODUCTION PLANNING AND OPERATIONAL CONTROL
9 th International Conferene on Prodution Researh USING REAL-TIME INFORMATION IN PRODUCTION PLANNING AND OPERATIONAL CONTROL Ronald G. Askin, Detlef Pabst, Mihael Pew, Young Jun Son 2 Department of Industrial
More informationContinuous temperature measurements on the pouring stand for casting moulds
ARCHIVES of FOUNDRY ENGINEERING Published quarterly as the organ of the Foundry Commission of the Polish Aademy of Sienes ISSN (897-330) Volume 8 Issue /008 75 80 5/ Continuous temperature measurements
More informationMinimization of water and chemical usage in the cleaning in place process of a milk pasteurization plant
Songklanakarin J. Si. Tehnol. 33 (4), 431-440, Jul. - Aug. 2011 http://www.sjst.psu.a.th Original Artile Minimization of water and hemial usage in the leaning in plae proess of a milk pasteurization plant
More information7001 Diamond Snap-Form ICF Code Considerations With the multitude of lightweight onrete forming systems in the onstrution market, building offiials are raising questions about ode ompliane and/or ode evaluation
More informationSystems & Services Certification SGS 53,000, 1000
CSR July 28, 2009 SGS Systems & Servies Certifiation SGS SGS SGS 1878 SGS 140 53,000, 1000 - Europe, Middle East & Afria: 24 400 employees - Amerias: 12 100 employees - Asia/Paifi: 16 500 employees SGS,
More informationImpact of Intangible Factors on Business Value
Impat of Intangible Fators on Business Value Inna Krasiuk PhD, Deputy head of the branh bank, PJSC CB PrivatBank, Ukraine Yelena Demidova Leturer of the Department of Soial Work, Belarusian State Pedagogial
More informationSERF: Efficient Scheduling for Fast Deep Neural Network Serving via Judicious Parallelism
SERF: Effiient Sheduling for Fast Deep Neural Network Serving via Judiious Parallelism Feng Yan University of Nevada, Reno, Reno, NV, USA, fyan@unr.edu Olatunji Ruwase Mirosoft Researh, Redmond, WA, USA,
More informationSCANDINAVIAN FOREST ECONOMICS No. 41, 2006
SCANDINAVIAN FORES ECONOMICS No. 41, 26 Proeedings of the Biennial Meeting of the Sandinavian Soiety of Forest Eonomis Uppsala, Sweden, 8 th -11 th May, 26 Lars Lönnstedt and Björn Rosenquist (eds.) Uppsala
More informationPrediction of Temperature and Aging Effects on the Properties of Concrete
Predition of Temperature and Aging Effets on the Properties of Conrete Jin-Keun Kim 1* and Inyeop Chu 1 1 KAIST, Republi of Korea * E-mail: kimjinkeun@kaist.a.kr ABSTRACT For the sustainable onrete strutures,
More informationLaboratory Investigation of Properties of Asphalt-Rubber Concrete Mixtures
TRANSPORTATION RESEARCH RECORD 1417 93 Laboratory Investigation of Properties of Asphalt-Rubber Conrete Mixtures TAISIR S. l
More informationGROUND WATER/SURFACE WATER INTERACTIONS AWRA SUMMER SPECULLTP CONF~NCR CZ-I PDG- ANALYSIS OF INFILTRATED STREAM WATER TO A PUMPING WELL
JULY 1-3 GROUND WATER/SURFACE WATER NTERACTONS AWRA SUMMER SPECULLTP CONF~NCR 22 32 CZ- PDG- ANALYSS OF NFLTRATED STREAM WATER TO A PUMPNG WELL Xunhong Chen' and Xi Chen' ABSTRACT: Pumping of groundwater
More informationResearch on Traveling Routes Problems Based on Improved Ant Colony Algorithm
Communiations and Network, 2013, 5, 606-610 http://dx.doi.org/10.4236/n.2013.53b2109 Published Online September 2013 (http://www.sirp.org/journal/n) Researh on Traveling Routes Problems Based on Improved
More informationOptimized Execution of Business Processes on Crowdsourcing Platforms
8th International Conferene Conferene on Collaborative Computing: Networking, Appliations and Worksharing, Collaborateom 212 Pittsburgh, PA, United States, Otober 14-17, 212 Optimized Exeution of Business
More informationThe role of pumped storage power plants in the power system operation
The role of pumped storage power plants in the power system operation Miroslav Vítek, Tomáš Králík, Ji í T ma Faulty of Eletrial Engineering Czeh Tehnial University in Prague Prague, Czeh Republi vitekm@
More informationBuildup Factors Calculation for a 1-MeV Point Isotropic Source in Iron, Concrete, and. Water. Skyler Butler, Maria Pinilla
Buildup Fators Calulation for a 1-MeV Point Isotropi Soure in Iron, Conrete, and Water Skyler Butler, Maria Pinilla Abstrat This experiment alulates the buildup fators for 1-MeV point isotropi soure of
More informationEXPERIMENTAL INVESTIGATION ON RECTANGULAR SRC COLUMNS WITH MULTI-SPIRAL CONFINEMENTS
4th International Conferene on Earthquake Engineering Taipei, Taiwan Otober 12-13, 26 Paper No. 49 EXPERIMENTL INVESTIGTION ON RECTNGULR SRC COLUMNS WITH MULTI-SPIRL CONFINEMENTS C.C. Weng 1, Y.L. Yin
More informationDimensions of propulsion shafts and their permissible torsional vibration stresses
(Feb 2005) (orr.1 Mar 2012) (orr.2 Nov 2012) (Rev.1 Aug 2014) (Rev.2 Apr 2015) Dimensions of propulsion shafts and their permissible torsional vibration stresses.1 Sope This UR applies to propulsion shafts
More informationExperiment Station. Department of Soil and Crop Sciences
Tehnial Bulletin TB06-03 August 2006 Ag riultural Experiment Station College of Agriultural Sienes Department of Soil and Crop Sienes Western Colorado Researh Center Organi Alternatives for Weed Control
More informationMagnetic Circuits. Fig. 1 The right hand rule for magnetic flux. The unit for the flux Φ is (weber) and the magnetic flux density B is given as:
Maneti Ciruits MTE 30 Sprin 006 E.F. EL-Saadany Maneti Ciruits Eetri mahines and transformers have eetri iruits and maneti iruits interinked throuh the medium of maneti fux. Eetri urrent fow throuh the
More informationHVAC SYSTEMS ALL OF THE EQUIPMENT NECESSARY TO PROVIDE THE DESIRED ENVIRONMENTAL CONDITIONS IN A BUILDING OR ITS PARTS
HVA SYSTEMS ALL OF THE EQUIPMENT NEESSARY TO PROVIDE THE DESIRED ENVIRONMENTAL ONDITIONS IN A BUILDING OR ITS PARTS FATORS TO BE ONSIDERED WHEN SELETING A SYSTEM 1. PERFORMANE 2. FIT INTO AVAILABLE SPAE
More informationNumerical Simulation of Combustion Chamber for Button Turbojet Engine
Numerial Simulation of Combustion Chamber for Button Turbojet Engine Hongpeng Ma, Shuzhou Fang, Hang Gao, Teng Li and Guanlin Fang Shool of Aerospae Siene and Engineering, Beijing Institute of Tehnology,
More informationComparison of Fuzzy Analytic Hierarchy Process and Analytic Hierarchy Process Based Decision Support for a Lean Performance Measurement System
Journal of Oean, Mehanial and erospae -Siene and Engineering-, Vol. 9 Marh 0, 06 Comparison of Fuzzy nalyti Hierarhy Proess and nalyti Hierarhy Proess ased Deision Support for a Lean Performane Measurement
More informationM. E. Kinsella 1, B. W. Lilly 2, N. Bhagavatula 2, K. G. Cooper 3 OH Abstract
Appliation o solid reeorm abriation proesses or injetion molding low prodution quantities: proess parameters and ejetion ore requirements or SLS inserts M. E. Kinsella 1, B. W. Lilly 2, N. Bhagavatula
More informationTransient Modeling and Comparison of Wind Generator Topologies
Transient Modeling and Comparison of Wind Generator Topologies C. Abbey, Student Member, B. Khodabakhhn, Member, F. Zhou, Non-member, S. Dennetière, Member J. Mahseredjn, Member, and G. Joos, Senior Member
More informationBIOLOGY. BrightRED Study Guide BIOLOGY. Margaret Cook and Fred Thornhill. BrightRED Study Guides. Curriculum for Excellence. Curriculum for Excellence
Curriulum for Exellene Margaret Cook and Fred Thornhill Contains all of the essential ourse information, arranged in easily digestible topis. Don t forget! pointers offer advie on key fats and on how to
More informationTrade Liberalization and Complementary Domestic Policies: A Rural-Urban General Equilibrium Analysis of Morocco
TMD DISCUSSION PAPER NO. 41 Trade Liberalization and Complementary Domesti Poliies: A Rural-Urban General Equilibrium Analysis of Moroo Hans Löfgren Moataz El-Said Sherman Robinson International Food Poliy
More informationSimulation of Transient Thermal Behaviors of the System Consisting of Aluminum Plate and Phase Change Material
Journal of Materials Sienes and Appliations 2017; 3(4): 53-57 http://www.aasit.org/journal/jmsa ISSN: 2381-0998 (Print); ISSN: 2381-1005 (Online) Simulation of Transient Thermal Behaviors of the System
More informationFlexibility of Strategy in High-Tech Enterprises
Soure: A. Zakrzewska Bielawska, Flexibility of strategy in high-teh enterprises [w:] M. Zhang (red., Eonomis, Business and Management. International Proeedings of Eonomis Development and Researh Vol. Flexibility
More informationA flush collector beam end plate is used to allow for the placement of the floor deck on top of the collector beam.
EARTHQUAKE Eentrially Braed Frames with Removable Links Design Methodology Author: Kevin Cowie a, Alistair Fussell a, Martin Wong a, Charles Clifton b, Dmitry Volynkin b Affiliation: a. Steel Constrution
More informationOptimizing of a gas turbine cycle by Genetic and PSO algorithms
ISSN Online): - Issue, August, pp. - Optimizing of a gas turbine yle by Geneti and algorithms Ahmad Khosravi, Mofid Gorji Band-pay, Farivar Fazelpour Abstrat xergoeonomi is one of the best effetive tools
More informationSTUDY ON THE MECHANICAL PROPERTIES OF THE FLY ASH GEOPOLYMER CONCRETE
International Journal of Civil Engineering and Tehnology (IJCIET) Volume 8, Issue 3, Marh 2017, pp. 950 957 Artile ID: IJCIET_08_03_095 Available online at http://www.iaeme.om/ijciet/issues.asp?jtype=ijciet&vtype=8&itype=3
More informationArchitecture of an ERP System Supporting Project-Oriented Management
Arhiteture of an ERP System Supporting Projet-Oriented Management Willy Piard and Grzegorz Wojiehowski Department of Information Tehnology The Poznań University of Eonomis ul. Mansfelda 4 60-854 Poznań,
More information20 questions on genetically modified foods
Page 1 of 6 Searh All WHO This site only Home About WHO Countries Health topis Publiations Data and statistis Programmes and projets Food Safety Zoonoses Mirobiologial risks Chemial risks Biotehnology
More informationTests on Reinforced Concrete Slabs with Pre-stressing and with Transverse Reinforcement under Impact Loading
20th International Conferene on Strutural Mehanis in Reator Tehnology (SMiRT 20) Espoo, Finland, August 9-14, 2009 SMiRT 20-Division 5, Paper 2015 Tests on Reinfored Conrete Slabs with Pre-stressing and
More informationMurali M. Gadde, Ph.D., P.E.
Murali M. Gadde, Ph.D., P.E. Why Study Floor Stability? All major oal seams in the IL Basin have weak immediate floor materials Required at the permitting stage During mining Subsidene after mining 2 Central
More informationFUZZY LOGIC BASIS FUNCTION OF PID CONTROLLER ON TUNING CONVENTIONAL CONTROLLERS FOR NON-LINEAR SYSTEM
International Journal o ISSN 0974-107 Systems and Tehnologies IJST Vol.3, No.1, pp 53-63 KLEF 010 FUZZY LOGIC BASIS FUNCTION OF PID CONTROLLER ON TUNING CONVENTIONAL CONTROLLERS FOR NON-LINEAR SYSTEM Mr.
More information