Evaluation of the thermal performance with different fin shapes of the air-cooled heat sink for power electronic applications
|
|
- Derrick Eaton
- 6 years ago
- Views:
Transcription
1 Journal of International Council on Electrical Engineering ISSN: (Print) (Online) Journal homepage: Evaluation of the thermal performance with different fin shapes of the air-cooled heat sink for power electronic applications Chang-Woo Han & Seung-Boong Jeong To cite this article: Chang-Woo Han & Seung-Boong Jeong (2016) Evaluation of the thermal performance with different fin shapes of the air-cooled heat sink for power electronic applications, Journal of International Council on Electrical Engineering, 6:1, 17-25, DOI: / To link to this article: The Author(s). Published by Taylor & Francis Published online: 05 Feb Submit your article to this journal Article views: 1235 View related articles View Crossmark data Citing articles: 2 View citing articles Full Terms & Conditions of access and use can be found at Download by: [ ] Date: 21 December 2017, At: 02:57
2 Journal of InternatIonal CounCIl on electrical engineering, 2016 Vol. 6, no. 1, OPEN ACCESS Evaluation of the thermal performance with different fin shapes of the air-cooled heat sink for power electronic applications Chang-Woo Han and Seung-Boong Jeong Power & Industrial Systems r&d Center, Hyosung Corporation, republic of Korea ABSTRACT The proper selection of the heat sink, which is attached at the insulated-gate bipolar transistor (IGBT) module to dissipate heat by electric losses of the IGBT/diode chips, is important to satisfy the design criterion of the IGBT module. Prior to the performance evaluation of the air-cooled heat sink using the numerical method, the suitability of the simulation model was validated through the experimental result of the developed product. The simulation model predicted the hotspot temperature on the heat sink within a margin of error of 5.6 percent. From the verified numerical method, the thermal performance of the heat sink was evaluated according to the shape of the fins. The heat sink with the perforated fins had an excellent thermal performance because the rate of increment of the dissipation area was greater than the rate of decrement of the convection coefficient. The selected heat sink with the perforated fins was attached at the IGBT module and the junction temperature of the IGBT module was predicted. The predicted junction temperature was C and the result satisfied the design criterion of C. 1. Introduction Power semiconductor devices such as an insulated-gate bipolar transistor (IGBT) module are the key component at the thermal design stage of a power electronic system such as a power conversion system (PCS), a high voltage direct current (HVDC) system, a static synchronous compensator (STATCOM), and so on. As the electric performance of semiconductor devices is improved, the power density of semiconductor devices is increased, and then the thermal problem of semiconductor devices becomes one of the issues with the thermal design. The IGBT module is a three-terminal semiconductor device primarily used as an electronic switch, and is noteworthy for combining high efficiency with fast switching capability in newer devices. The performance of the IGBT module is affected by its operation temperature; thus, it is recommended that the IGBT module should be worked at lower temperatures to maintain the fast switching speed and the low switch loss attributes. The IGBT module is consisted of the IGBT/ diode chips, the direct copper bonded (DCB) substrate with the ceramic, the solder, the base plate (Cu) and the silicone gel covering the substrate and the IGBT/diode chips as shown in Figure 1. All components of the IGBT module are wrapped up with the ARTICLE HISTORY received 10 august 2015 accepted 29 october 2015 KEYWORDS Heat sink; insulatedgate bipolar transistor (IgBt) module; junction temperature; perforated fin plastic cover. The thermal energy generated by electric losses of the IGBT/diode chip is transferred through the copper plate and ceramic layers to the base plate of the module. It is then dissipated by convection heat transfer in the cooling system such as the heat sink and the heat pipe. In general, the heat sink is divided into three types, viz., air-, water-, and refrigerant-cooled type. The air-cooled heat sink is simple and easy-to-use in configuration, but the rate of heat transfer is less than other cooling methods for the same size. The water-cooled heat sink has higher thermal capacity than the air-cooled heat sink, but it needs additional equipment such as a heat exchanger, pump, and so on. The refrigerant-cooled heat sink has an excellent thermal performance, but has a weakness in that the design and the maintenance are relatively difficult. Then, the design engineer must determine a cooling method which is suitable in the operating and environmental conditions of a power electronic system because each cooling method has its own advantages and disadvantages. The main purpose to design, simulate, test, and evaluate the heat sink is to securely use the IGBT module when it is integrated into a power electronic system. So, a number of researchers evaluated and improved the thermal performance of the heat sink using the numerical CONTACT Chang-Woo Han cwhan@hyosung.com 2016 Hyosung Corporation this is an open access article distributed under the terms of the Creative Commons attribution license ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
3 18 C.-W. Han and S.-B. JeonG Module plastic cover NTC DCB Thermal switch Base Plate of heat sink Copper Ceramic (0.9mm) Copper Silicone gel IGBT/diode chip (0.57mm/0.52mm) Solder (0.5mm) Base Plate of the module (3mm) Thermal Grease (75µm) Air between fins * Drawing not to scale Fin of heat sink Figure 1. Cross-sectional view of the packaging associated with IgBt and diode chip. and experimental methods [1]-[8]. It is also important to predict the temperature of the semiconductor device with different cooling types and operating conditions at the cooling design stage. Some studies predicted the junction temperature, which is the highest operating temperature of the actual semiconductor device in the power electronic device and is the key factor for assessing the suitability of the cooling design, to check the thermal status of the IGBT module under various operating conditions using the computational fluid dynamics (CFD) technique and thermal network model [9]-[15]. In this paper, prior to the development of the PCS, the thermal performance of the heat sink attached at the IGBT module was evaluated with different shapes of the fin of the heat sink using the numerical simulation method, and then the heat sink was selected from the simulation results. The selected heat sink was evaluated as to whether or not it satisfied the design criterion of the junction temperature of the IGBT module. 2. Description of physical models 2.1. Problem description Every power semiconductor device uses the heat sink to dissipate heat generated by electric losses, whether in a chip or in a module package. The task of the heat sink is to transfer the thermal energy by the IGBT module to the cooling medium such as air and water. Also, the structure of the heat sink plays a role as a base of the semiconductor device. As shown in Figure 1, the heat sink is attached at the base plate of the IGBT module and the thermal interface material (TIM) is applied between the IGBT module and heat sink in order to minimize the thermal contact resistance. The IGBT/diode chip repeats the ON-OFF operation to convert DC to AC or AC to DC, and the IGBT module generates electric losses such as switching and conduction losses. Electric losses are converted to heat, and then it has an adverse effect on the IGBT module. In general, due to the vulnerable characteristics of the IGBT module to heat, the junction temperature of the IGBT/diode chip should be monitored in real-time. If the setting temperature is over on the thermal switch and negative temperature coefficient (NTC) thermistor, the operation of the IGBT module should be shut down. The IGBT module used in this study can be operated up to 150 C, but the design criterion of the IGBT module is set at 140 C, in consideration of the temperature measurement error, the instantaneous peak current, the power cycling, and unexpected environmental conditions. A power module for the PCS is chosen to convert the characteristics of power source. The selected device is Infineon Corporation PrimePACK TM 3 module and NTC, rated for 1.7 kv and 1.0 ka [16]. The size of the IGBT module is 89 mm (width) 38 mm (height) 250 mm (length). In order to dissipate thermal energy by the IGBT module, the air-cooled heat sink was used as the size of the heat sink was 280 mm (width) 115 mm (height) 400 mm (length) and the material was set to be aluminum alloy 6063 with the thermal conductivity of Wm 1 K 1. The heat sink was attached at the base plate of the IGBT module and the TIM, Mementive Performance Material Inc. YG6111 [17], was applied between the IGBT module and the heat sink. The thermal conductivity of the TIM was 0.84 Wm 1 K 1 and its thickness was about 75 μm. Air flowing into the heat sink was assumed to be 40 C in order to consider the extreme environment condition and the condition of the ambient air around the IGBT module and the heat sink was assumed to be stationary air with a convection heat transfer coefficient of 5 Wm 2 K 1.
4 Journal of InTernaTIonal CounCIl on electrical engineering 19 Figure 2. Schematic of (a) the physical model, (b) the single section of the heat sink, and (c) the simulation domain Geometry configuration The full configuration of the heat sink, which is attached at the IGBT module, is shown in Figure 2(a). The entrance and exit plane should be adequately distant from the heat sink so that the results become independent of the boundary positions, and then the extended inlet and outlet region, L e,in and L e,out, were considered as shown in Figure 2(c). To prevent the sudden extension of the height between the heat sink and the frame of the fan, the fan region L f and H e were considered. The induced air enters the heat sink with an inlet area of mm 2, and the heated air is exhausted to the outlet area of mm 2. The area of pressure rise by the fan is mm 2. In this study, the fins of the three different geometries, viz., the plate, perforation, and protuberance fin, were considered as shown in Figure 3. By default, three fins are possible to manufacture and the number of fins, which are mounted on the base plate of the heat sink, can differ according to the manufacturing situation. The plate fin (Figure 2(b) and Figure 3(a)) has uniform thickness (t = 0.8 mm), and the channel width (w c = 3.2 mm) between the plate fins is also uniform. Thin plate fins are fixed on both the bottom and top side of the two base plates (h b = 12 mm), taking the structural safety into account. The perforated fin (Figure 3(b)) has the four perforations with a long rectangular cross section ( mm 2 ). These perforations act as the channel and the direction of fluid flow is perpendicular to the cross-section of the channel. The protuberance fin (Figure 3(c)) has a number of protuberances ( mm 2 ) on both sides of the plate fin. By increasing the dissipation area of the fin, the rate of the convection heat transfer can be increased. The thickness of the flat plate of the protuberance fin, (t = 3.0 mm), is thicker than the plate fin due to the structural and manufacturing problem. Due to the uniform size of each channel, the simulation domain was modeled with a single section of the channel as highlighted by the dotted lines in Figure 2(b) and (c). Then, there are some benefits of the reduction in the mesh generation and computation. The section width, w s, of the plate, perforation, and protuberance fin is 4 mm, 6.85 mm and 10.3 mm, respectively. In order to simplify the complex electric loss distribution of the IGBT module as shown in Figure 2(a), the heat flux modeled as electric losses was uniformly and constantly generated in the region, L heat, as shown in Figure 2(c).
5 20 C.-W. Han and S.-B. JeonG Figure 3. Schematic of (a) the plate fin, (b) the perforated fin, and (c) the protuberance fin. Figure 4. Mesh configuration of the heat sink with the plate fin for the one-pitch model. Table 1. result of the grid independency study. Grid size airflow rate [m 3 hr 1 ] Mean nusselt number 369, , , ,462, Numerical simulation 3.1. Grid systems The numerical solution must be independent to the grid size. Then, several grid systems were studied in order to reach the grid independency. The hexahedral meshes were employed to compute the thermal and fluid flow field in the domain generated by the commercial code ANSYS ICEM CFD as shown in Figure 4. Fine meshes were generated around the fin and concentrated in the region such as the entrance and exit of the heat sink or in the fan region that the air flow was expected to be changed suddenly. The airflow rate of the heat sink and mean Nusselt number of the fin were compared with different grid sizes under the same fan operating condition. To specify the heat sink in this study, at least 369,468 cells were required in the computational domain. From the results on Table 1, the grid size of 369,468 had shown a negligible difference of the airflow rate and mean Nusselt number as compared with a higher grid size of 2,462,688. Consequently, the final mesh system with 369,468 cells was adopted for the numerical simulation model Governing equations The incompressible steady continuity, momentum, and energy equation were solved together with realizable k-ε turbulence model in Eq. (1) [18] to simulate the velocity and temperature field using the commercial CFD solver ANSYS Fluent, where the buoyancy and radiation effects were neglected. The flow field was considered to be a laminar and turbulent mixing region because the Reynolds number was larger than 2,300 in the heat sink region but was smaller than 2,300 in the extended inlet and outlet region. The pressure-based segregated solver was used as the solution algorithm, where the governing equations were sequentially solved. The pressure-velocity coupling term was obtained by the SIMPLE (Semi-Implicit Method for Pressure-Linked Equations) algorithm. No-slip boundary conditions were used at the solid surfaces. ( ) φ ρu (1) x i φ k Γ k k = S i x φk i where, ρ is the air density (kgm 3 ), Γ Φ is the diffusion coefficient, u i is the air velocity vectors (ms 1 ), S ϕ,k is the source term of the general flow, and heat generation, ϕ is any one of the components shown in Table 2. Further information on the transport equations is provided in the ANSYS Fluent theory guide [18]. The boundary conditions for the present study were illustrated in Figure 2(c). The boundary conditions can be expressed as follows: At x = 0 and x = W s, both the surfaces are set as symmetrical boundaries. At y = 0 (z = L heat ), uniform heat flux q is applied on the bottom wall.
6 Journal of InTernaTIonal CounCIl on electrical engineering 21 Table 2. notation of the governing equation (1). equation Φ Γ Φ,eff S Φ Continuity Momentum u i μ eff p/ x i + S V turbulence kinetic energy k μ eff /σ k P k ρε + G k turbulence kinetic energy dissipation rate ε μ eff /σ ε ε(c 1 P k C 2 ε)/k + C 3 G k ε/k energy T k S T At y = 0 (except for z = L heat ), the bottom surface is set as convection. At y = H, the top surface is set as convection. At z = 0 (Flow entrance), the inlet is set as pressure inlet and inlet temperature T = T in. At z = L f (Fan), the interior wall is set as pressure jump. At z = L (Flow exit), the outlet is set as pressure outlet. Defining an average convection coefficient h (Wm-2K- 1) for the fin of the heat sink, the total heat transfer rate may be expressed as Eq. (2). Q = ha ( ) T S T (2) where, Q is the heat loss of the IGBT module (W), A is the heat dissipation area of the fin (m 2 ), T S is the surface temperature of the fin (K), T is the ambient air temperature (K). The mean Nusselt number is able to express as Eq. (3). where, L ch is the characteristic length of the channel of the fin (m) and k air is the thermal conductivity of air (Wm 1 K 1 ). In this study, the channel width was relatively smaller than the fin height, and then the channel width was used as the characteristic length when the mean Nusselt number is calculated. 4. Experiments 4.1. Experimental system Nu = hl ch k air (3) In order to compare the thermal performance of the fins, the numerical simulation model was verified to the hotspot temperature on the heat sink that was the developed product. Figure 5 shows the experimental rig. The IGBT module was mounted on the heat sink and electric losses were uniformly and constantly generated in each IGBT module with 1,300W (IGBT: 936W, Diode: 364W). To blow the air into the heat sink, the fan (ebm-papst, DV6224) was mounted on the top side of the heat sink [19]. The experimental device is capable of supplying a constant power source to the IGBT module during one set of experiments with a constant electric loss to measure the temperature on the heat sink Temperature measurements The measurement of the junction temperature of the IGBT/diode chips is required to evaluate the numerical simulation results. For the case of the direct measurement method, inserting thermocouples to measure the junction temperature of the IGBT/diode chip has a risk of short-circuiting when the contact between the temperature sensor and IGBT/diode chip occurs. In the experiment of this study the indirect measurement method was then selected to get the junction temperature of the IGBT module. First, the surface temperature of the heat sink, which is called the hotspot temperature, T hot spot, in the following discussion, was measured, and then the junction temperature of the IGBT module, T junc., was predicted by adding the temperature difference which is equal to the amount of heat (kw) transferred from the junction (IGBT or diode chip) to case (heat sink block) multiplied by the junctionto-case thermal resistance (K/kW), R th, chip, from Eq. (4). T junc. = T hot spot + R th,chip Q loss (4) where, Q loss is the electric loss of the IGBT or diode chip. The thermal resistance is basically given by the maker of the IGBT module. The junction-to-case thermal resistance of the IGBT and diode chip used in the experiment is 33 K/kW and 66 K/kW, respectively [18]. The measurement point should be chosen to the spot of the maximum temperature on the heat sink, and thus this point was chosen through the numerical results. The K-type thermocouple was used as the temperature sensor, and several calibrated thermocouples were attached at the measurement point that was located between the IGBT module and heat sink. Thermocouples were connected to the data acquisition (DAQ) system, and measured data was stored every one second. 5. Results and discussions 5.1. Verification of the numerical simulation model Temperature rise test of the IGBT module was conducted at a constant temperature of 40 C in the constant temperature chamber. The hotspot temperature on the heat sink was reached at 100 C and the temperature difference between R, S, and T phase was within 1 C.
7 22 C.-W. Han and S.-B. JeonG Figure 5. Photograph of the experimental rig to verify the numerical simulation model. Flow direction Figure 6. temperature distribution on the heat sink of the developed product with heat sources of 1,300W (unit: C). In order to verify the suitability of the simulation model, the simulation domain was extended to the entire heat sink as shown in Figure 2(a). The IGBT module was modeled including the IGBT/diode chip, substrate, solder, and TIM. In Figure 6, the temperature of the IGBT chip was higher than the diode chip due to the difference of the power density, and the surface temperature was highly distributed as the airflow was directed toward to the downstream. The temperature at the measurement point was predicted to be 94.4 C that was lower than the experimental result. The main cause is estimated as the thickness difference of the TIM. The thickness of the TIM, which was recommended by the maker of the IGBT module, was considered in the simulation model. It is very difficult to control the thickness of the TIM in the developing prototype even though there is the thickness difference of the TIM between the simulation model and prototype. If the thickness of the TIM is thicker than the present condition, the thermal resistance in the TIM is increased and then the hotspot temperature on the heat sink is raised. As the thickness of the TIM is controlled as the same design condition during the assembly process, the errors will be expected to be reduced. The simulation model predicted the hotspot temperature on the heat sink within a margin of error of 5.6 percent. The magnitude of this error range is an acceptable level to compare the thermal performance of the fin with different geometries Comparison of the thermal performance The most important factor for selecting the heat sink was considered as the hotspot temperature in this study. When considering the cost, the secondary factor was chosen as the weight of the heat sink. Table 3 shows that the heat sink with the perforated fins is excellent with respect to the thermal performance and the weight. Compared with the plate and protuberance fin, the rate of increment of the dissipation area was greater than the rate of decrement of the convection coefficient. Consequently, the relative hotspot temperature of the perforated fin was the lowest among three fins. As for the plate fin, the weight of the heat sink with plate fins was relatively heavy because the fins were fixed on both the bottom and top side by the two base plates. In Table 3, the dissipation area of the protuberance fin was greater than the plate and perforated fin but the convection coefficient of the protuberance fin was much less than the fin of the two types. That is the reason why the effective velocity near the fin surface of the protuberance is slower than the plate fin as shown in Figure 7. As the protuberances are concentrated on the surface of the plate fin in the vertical direction, the flow resistance is increased near the solid surface, and then the fast velocity was formed in the area that is located between the plate fins. If the channel width of the protuberance fin is decreased and the number of the fins is increased in the horizontal direction, the effective velocity near the protuberance becomes fast, and it is then expected to improve the thermal performance. Table 3. Comparison of the thermal performance and the weight with different shapes of the fin. Type Surface temperature of the fin [ C] Convection coefficient [Wm 2 K 1 ] dissipation area [m 2 ] Weight [kg] Plate fin Perforated fin Protuberance fin
8 Journal of InTernaTIonal CounCIl on electrical engineering 23 Figure 7. Velocity distribution of the channel section in the exit of (a) the plate fin, (b) perforated fin, and (c) the protuberance fin Suitability of the selected heat sink The heat sink with the perforated fins was selected from the numerical simulation results with respect to thermal performance and cost. When the IGBT module was mounted on the selected heat sink, the junction temperature of the IGBT module was predicted to evaluate the suitability of the selected heat sink. Figure 8 shows the configuration of one IGBT module and half of the heat sink with the perforated fins which is the developing prototype. Ambient air of 40 C is induced from top side by the fan, Ventas Ventilator GD133-2J [20], and the heated air by IGBT module is exhausted to the bottom side through the air-path guide. Electric losses are constantly generated in one IGBT module with 1,640W (IGBT: 1,177W, Diode: 457W). Figure 9 shows the temperature distribution on the heat sink to the developing prototype. Similar to the result of Figure 6, the relatively higher temperature was distributed at the IGBT/diode chip that was located in the downstream direction. The surface temperature of the monitoring point and the thermal switch was C and 77.0 C, respectively. The maximum hotspot temperature on the heat sink was reached at C and the spot was Figure 8. Configuration of the IgBt module attached at the heat sink with perforated fins. Figure 9. temperature distribution on the heat sink with the perforated fins of the developing prototype (unit: C). located in 190 mm away from the entrance of the heat sink. The hotspot temperature was located below the IGBT chip, and, therefore, the thermal resistance of the junctionto-case was used as 33 K/kW. The predicted junction temperature of the IGBT module, which was considered with a numerical margin of error of 5.6 percent, was C, and the result satisfied the design criterion of the IGBT module.
9 24 C.-W. Han and S.-B. JeonG 6. Conclusion The junction temperature of the IGBT module, which is a part of a power semiconductor device, directly affects system performance such as a PCS, thus making the proper selection of the heat sink to be very important at the thermal design stage. In this paper, the thermal performance of the heat sink was evaluated according to the shape of the fins, and the heat sink was selected. The selected heat sink was evaluated as to whether or not it satisfied the design criterion of the junction temperature of the IGBT module. Prior to the performance evaluation of the air-cooled heat sink using the numerical method, the suitability of the simulation model was validated through the experimental result of the developed product. The simulation model predicted the hotspot temperature on the heat sink within a margin of error of 5.6 percent. The magnitude of this error range is an acceptable level to compare the thermal performance of the fin with different shapes. The heat sink with the perforated fins exhibited an excellent thermal performance because the rate of increment of the dissipation area was greater than the rate of decrement of the convection coefficient. The selected heat sink with the perforated fins was attached at the IGBT module, and the junction temperature of the IGBT module was predicted. The predicted junction temperature of the IGBT module was C, and the result satisfied the design criterion of the IGBT module. Disclosure statement No potential conflict of interest was reported by the authors. Notes on contributor Chang-Woo Han He received the B.Sc. and M.Sc. degree in mechanical engineering from the University of Seoul, Seoul, Republic of Korea, in 2004 and 2006, respectively. He joined Hyosung Corporation since 2007 and is currently a principal researcher for Hyosung Corporation. Also he is currently working toward the Ph.D. degree in mechanical engineering at the University of Seoul. His research interests include thermo-fluid simulation and cooling design in the power electronic systems such as a PCS, HVDC, STATCOM. Seung-Boong Jeong He received the B.Sc. and M.Sc. degree in mechanical engineering from the Seoul National University, Seoul, Republic of Korea, in 1999 and 2001, respectively. He is currently a chief researcher for Hyosung Corporation. He is currently the technology leader of the thermo-fluid technology group of the Power and Industrial Systems R&D Center. His research interests include thermo-fluid simulation and design in electrical machines and power electronics systems. Mr. Jeong is a member of the ASME. ORCID Chang-Woo Han Seung-Boong Jeong References [1] Chang YW, Chang CC, Ke MT, Chen SL. Thermoelectric air-cooling module for electronic devices. Applied Thermal Engineering. Sept. 2009;29(1): [2] Huang CH, Chang WL. An inverse design method for optimizing design parameters of heat sink modules with encapsulated chip. Applied Thermal Engineering. July 2012;40: [3] Yuan W, Zhao J, Tso CP, Wu T, Liu W, Ming T. Numerical simulation of the thermal hydraulic performance of a plate pin fin heat sink. Applied Thermal Engineering. Dec. 2012;48: [4] Chen HT, Lai ST, Haung LY. Investigation of heat transfer characteristics in plate-fin heat sink. Applied Thermal Engineering. Jan. 2013;50(1): [5] Yin S, Tseng KJ, Zhao J. Design of AlN-based microchannel heat sink in direct bond copper for power electronics packaging. Applied Thermal Engineering. April 2013;52(1): [6] Brighenti F, Kamaruzaman N, Brandner JJ. Investigation of self-similar heat sinks for liquid cooled electronics. Applied Thermal Engineering. Sept. 2013;59(1 2): [7] Sakanova A, Yin S, Zhao J, Wu JM, Leong KC. Optimization and comparison of double-layer and double-side micro-channel heat sinks with nanofluid for power electronics cooling. Applied Thermal Engineering. April 2014;65(1 2): [8] Li Y, Zhang F, Sunden B, Xie G. Laminar thermal performance of microchannel heat sink with constructal vertical Y-shaped bifurcation plates. Applied Thermal Engineering. Dec. 2014;73(1): [9] Parida PR, Ekkad SV, Ngo K. Impingement-based high performance cooling configurations for automotive power converters. Int. J. Heat and Mass Transfer. Jan. 2012;55(1): [10] B. Czerny, M. Lederer, B. Nagl, A. Trnka, G. Khatibi, and M. Thoben, Thermo-mechanical analysis of bonding wires in IGBT modules under operating conditions, Microelectronics Reliability, Vol. 52, No. 9-10, pp , Sept.-Oct [11] Kim N, Han C. Thermal analysis and design of a 75-W hybrid-type DC-DC converter for space application. Microelectronics Reliability. Aug. 2014;54(8): [12] Xu L, Liu Y, Liu S. Modeling and simulation of power electronic modules with microchannel coolers for thermo-mechanical performance. Microelectronics Reliability. Dec. 2014;54(12): [13] Lee TY. Design optimization of an integrated liquidcooled IGBT power module using CFD technique, IEEE
10 Journal of InTernaTIonal CounCIl on electrical engineering 25 Trans. Components, Packaging, and Manufacturing Technology. Mar. 2000;23(1): [14] Yun CS, Malberti P, Ciappa M, Fichtner W. Thermal component model for electrothermal analysis of IGBT module systems. IEEE Trans. Advanced Packaging. Aug. 2001;24(3): [15] Du B, Hudgins JL, Santi E, Bryant AT, Palmer PR, Mantooth HA. Transient electrothermal simulation of power semiconductor devices. IEEE Trans. Power Electronics. Aug. 2010;25(1): [16] PrimePACK TM 3 module and NTC FF1000R17IE4, Infineon Corporation, Data sheet published on [17] YG6111, Momentive Performance Materials Inc., Data sheet published on September, [18] ANSYS FLUENT Theory Guide 15.0 Documentation, ANSYS Inc., [19] DV6224, ebm-papst GmbH &Y Co. KG, Data sheet published on [20] GD133-2J, Ventas Ventilatorer, Data sheet published on
STUDY ON THE OPTIMIZATION OF IGBT THERMAL MANAGEMENT FOR PTC HEATER
Journal of Engineering Science and Technology Vol. 10, No.12 (2015) 1575-1588 School of Engineering, Taylor s University STUDY ON THE OPTIMIZATION OF IGBT THERMAL MANAGEMENT FOR PTC HEATER J. W. JEONG,
More informationA study on the effect of the airflow rate of the ceiling type air-conditioner on the ventilation performance
A study on the effect of the airflow rate of the ceiling type air-conditioner on the ventilation performance Kwang-Chul Noh 1, Chang-Woo Han 2 and Myung-Do Oh 2 1 Institute of Industrial Technology, University
More informationThermal Management of Densely-packed EV Battery Set
EVS28 KINTEX, Korea, May 3-6, 2015 Thermal Management of Densely-packed EV Battery Set Abstract Z. Lu 1, X.Z. Meng 1, W.Y. Hu 2, L.C. Wei 3, L.Y. Zhang 1, L.W. Jin 1* 1 Building Environment and Equipment
More informationCFD ANALYSIS OF CONVECTIVE FLOW IN A SOLAR DOMESTIC HOT WATER STORAGE TANK
International Journal of Scientific & Engineering Research Volume 4, Issue 1, January-2013 1 CFD ANALYSIS OF CONVECTIVE FLOW IN A SOLAR DOMESTIC HOT WATER STORAGE TANK Mr. Mainak Bhaumik M.E. (Thermal
More informationHeat Transfer Simulation of Impinging Jet with Finned Heat Sink
Heat Transfer Simulation of Impinging Jet with Finned Heat Sink Shivakumar H 1, Krishnamurthy K N 2, Akashdeep B.N 3 Department of Thermal power Engineering, M.Tech student 1, Assistant professor 2, VTU
More informationPerformance Improvement on Water-cooled Cold-Plate
Proceedings of the 4th WSEAS International Conference on Heat and Mass Transfer, Gold Coast, Queensland, Australia, January 17-19, 2007 104 Performance Improvement on Water-cooled Cold-Plate SHYAN-FU CHOU,
More informationCFD Modelling and Analysis of Different Plate Heat Exchangers
CFD Modelling and Analysis of Different Plate Heat Exchangers Ahmed Y Taha Al-Zubaydi a *, Guang Hong b and W. John Dartnall c Faculty of Engineering and Information Technology, UTS, Sydney, Australia
More informationSpray cooling of IGBT electronic power modules
Thermal Challenges in Next Generation Electronic Systems, Joshi & Garimella (eds) 2002 Millpress, Rotterdam, ISBN 90-77017-03-8 G. Mitic, W. Kiffe, G. Lefranc, S. Ramminger Siemens AG, Corporate Technology
More informationEXPERIMENTAL STUDY OF HIGH HEAT REMOVAL BY ALUMINUM PIN FIN HEAT SINK USING MULTI-JET AIR IMPINGEMENT
International Journal of Mechanical and Production Engineering Research and Development (IJMPERD) ISSN(P): 2249-6890; ISSN(E): 2249-8001 Vol. 4, Issue 5, Oct 2014, 13-20 TJPRC Pvt. Ltd. EXPERIMENTAL STUDY
More informationTHERMOELECTRIC EFFECTS OF SIZE OF MICROCHANNELS ON AN INTERNALLY COOLED LI-ION BATTERY CELL
Proceedings of the ASME 2016 International Mechanical Engineering Congress and Exposition IMECE2016 November 11-17, 2016, Phoenix, Arizona, USA IMECE2016-65729 THERMOELECTRIC EFFECTS OF SIZE OF MICROCHANNELS
More informationInvestigation on the Impact on Thermal Performances of New Pin and Fin Geometries Applied to Liquid Cooling of Power Electronics
Investigation on the Impact on Performances of New Pin and Fin Geometries Applied to Liquid Cooling of Power Electronics Matt Reeves, Jesus Moreno, Peter Beucher, Sy-Jenq Loong and Dwight Brown. MicrooCool
More informationInvestigating Two Configurations of a Heat Exchanger in an Indirect Heating Integrated Collector Storage Solar Water Heating System
Journal of Energy and Power Engineering 7 (2013) 66-73 D DAVID PUBLISHING Investigating Two Configurations of a Heat Exchanger in an Indirect Heating Integrated Collector Storage Solar Water Heating System
More informationCFD ANALYSIS OF SOLAR HEATER WATER PIPE WITH DIFFERENT INCLINATION
International Journal of Mechanical and Production Engineering Research and Development (IJMPERD) ISSN(P): 2249-6890; ISSN(E): 2249-8001 Vol. 4, Issue 2, Apr 2014, 55-62 TJPRC Pvt. Ltd. CFD ANALYSIS OF
More informationDr. J. Wolters. FZJ-ZAT-379 January Forschungszentrum Jülich GmbH, FZJ
Forschungszentrum Jülich GmbH, FZJ ZAT-Report FZJ-ZAT-379 January 2003 Benchmark Activity on Natural Convection Heat Transfer Enhancement in Mercury with Gas Injection authors Dr. J. Wolters abstract A
More informationOptimization of Heat Sink Embedded with Heat Pipes Design Parameters using Design of Experiments Technique by Taguchi Method
Optimization of Heat Sink Embedded with Heat Pipes Design Parameters using Design of Experiments Technique by Taguchi Method Dr. Prabhu Thangavel Department of Mechanical Engineering PSG College of Technology
More informationPackaging Technologies for SiC Power Modules
Packaging Technologies for SiC Power Modules Masafumi Horio Yuji Iizuka Yoshinari Ikeda ABSTRACT Wide bandgap materials such as silicon carbide (SiC) and gallium nitride (GaN) are attracting attention
More informationGraphite Foam Heat Exchanger for Vhielces
Graphite Foam Heat Exchanger for Vhielces Lin, Wamei; Sundén, Bengt Published: 2011-01-01 Link to publication Citation for published version (APA): Lin, W., & Sundén, B. (2011). Graphite Foam Heat Exchanger
More informationNumerical Simulation of the Thermal Performance of a Dry Storage Cask for Spent Nuclear Fuel Chi-Ming Lai, University Distinguished Professor Departme
Numerical Simulation of the Thermal Performance of a Dry Storage Cask for Spent Nuclear Fuel Chi-Ming Lai, University Distinguished Professor Department of Civil Engineering, National Cheng Kung University
More informationEmbedded Microfluidic/Thermoelectric Generation System for Self- Cooling of Electronic Devices
Embedded Microfluidic/Thermoelectric Generation System for Self- Cooling of Electronic Devices R. Kiflemariam *1, H. Fekrmandi 1, C. Lin 1 1 Department of Mechanical and Materials Engineering Florida International
More informationAbstract. 1. Introduction
CFD Analysis of Splayed Pin Fin Heat Sink for Electronic Cooling Agnihothra Sarma O 1, A Ramakrishna 2 PG Student 1, Professor 2 Department of Mechanical Engineering, BVC Engineering College, Odalarevu
More informationExperimental Research on the Heat Transfer and Flow Performance of a Composite Heat Sink
Experimental Research on the Heat Transfer and Flow Performance of a Composite Heat Sink Yu Xiaoling, Wang Qianlong, Feng Quanke School of Energy and Power Engineering, Xi an Jiaotong University, Xi an
More informationDirect Liquid Cooling IGBT Module for Automotive Applications
Direct Liquid Cooling IGBT Module for Automotive Applications Takahisa Hitachi Hiromichi Gohara Fumio Nagaune ABSTRACT A compact insulated gate bipolar transistor (IGBT) module with low thermal resistance
More informationPower Electronics Packaging Revolution Module without bond wires, solder and thermal paste
SEMIKRON Pty Ltd 8/8 Garden Rd Clayton Melbourne 3168 VIC Australia Power Electronics Packaging Revolution Module without bond wires, solder and thermal paste For some years now, the elimination of bond
More informationPERFORMANCE ANALYSIS OF NATURAL DRAFT WET COOLING TOWER AT OPTIMIZED INJECTION HEIGHT
PERFORMANCE ANALYSIS OF NATURAL DRAFT WET COOLING TOWER AT OPTIMIZED INJECTION HEIGHT 1 ALOK SINGH, 2 SANJAY SONI, 3 R. S. RANA 1 Assistant Professor, 2 Associate Professor, 3 Mechanical Engineering Department
More informationCHAPTER-1 INTRODUCTION
CHAPTER-1 INTRODUCTION 1.1 COOLING OF ELECTRONIC EQUIPMENTS: In general, the sole objective of improving the cooling of electronic systems is to increase cooling capacity. The failure rate of electronic
More informationADVANCES in NATURAL and APPLIED SCIENCES
ADVANCES in NATURAL and APPLIED SCIENCES ISSN: 1995-0772 Published BY AENSI Publication EISSN: 1998-1090 http://www.aensiweb.com/anas 2016 Special 10(6): pages 72-78 Open Access Journal Cfd Analysis Of
More informationPerformance Analysis for Natural Draught Cooling Tower & Chimney through Numerical Simulation
Performance Analysis for Natural Draught Cooling Tower & Chimney through Numerical Simulation Kanteyya A 1, Kiran Kumar Rokhade 2 Assistant Professor, Department of Mechanical Engineering, HKESSLN College
More informationTHERMAL ANALYSIS OF CPU WITH VARIABLE BASEPLATE HEAT- SINK USING CFD
THERMAL ANALYSIS OF CPU WITH VARIABLE BASEPLATE HEAT- SINK USING CFD Channamallikarjun Department of Mechanical Engineering, BKIT-Bhalki-585328 Abstract The computational fluid dynamics is concentrated
More informationInvestigation on Core Downward Flow by a Passive Residual Heat Removal System of Research Reactor
Investigation on Core Downward Flow by a Passive Residual Heat Removal System of Research Reactor W.K. Lee 1, S.J. Kim 1, D.Y. Lee 1, W.K. Hwang 1, K.Y. Lee 1 1) Department of Mechanical and Control Engineering,
More informationBLDC Motor for Automotive Cooling Fan Assembly: Heat Sink Optimization
BLDC Motor for Automotive Cooling Fan Assembly: Heat Sink Optimization Davide Parodi Fluid Dynamic and Aeroacoustic Engineer, Automotive Product Group, Johnson Electric Asti S.r.l. Asti, Italy Email: davide.parodi@johnsonelectric.com
More informationheat exchanger modelling for generator ventilation systems
heat exchanger modelling for generator ventilation systems This paper discusses how the heat exchanger/cooler is modelled using CFD (Computational Fluid Dynamics) as a porous medium and the associated
More informationNumerical and Experimental Modeling of Producer Gas Carburettor
Numerical and Experimental Modeling of Producer Gas Carburettor S.S.Vinay l, S.D.Ravi 2, G PremaKumar 3 and N.K.S.Rajan 4 l M.E Student, Bangalore University, Bangalore. 2 Project Assistant, CGPL, Dept
More informationFlow and Heat Transfer Characteristics in High Porosity Metal Foams
Proceedings of the World Congress on Mechanical, Chemical, and Material Engineering (MCM 2015) Barcelona, Spain July 20-21, 2015 Paper No. 333 Flow and Heat Transfer Characteristics in High Porosity Metal
More informationInvestigating two configurations of a heat exchanger in an Indirect Heating Integrated Collector Storage Solar Water Heating System (IHICSSWHS)
European Association for the Development of Renewable Energies, Environment and Power Quality (EA4EPQ) International Conference on Renewable Energies and Power Quality (ICREPQ 12) Santiago de Compostela
More informationISSN (ONLINE): , ISSN (PRINT):
SPECIAL ISSUE (ICRAME-2015) International Conference on Recent Advances in Mechanical Engineering In collaboration with International Journal of Engineering and Management Research (IJEMR) Page Number:
More informationCFD ANALYSIS OF MINI CHANNEL HEAT EXCHANGER USING WATER AS A WORKING FLUID
CFD ANALYSIS OF MINI CHANNEL HEAT EXCHANGER USING WATER AS A WORKING FLUID Bhavesh K. Patel 1, Ravi S. Engineer 2, Mehulkumar H. Tandel 3 1 Assistant Professor, Mechanical Engineering, Government Engineering
More informationNumerical Simulation on Effects of Electromagnetic Force on the Centrifugal Casting Process of High Speed Steel Roll
Modeling and Numerical Simulation of Material Science, 2014, 4, 20-24 Published Online January 2014 (http://www.scirp.org/journal/mnsms) http://dx.doi.org/10.4236/mnsms.2014.41004 Numerical Simulation
More informationPerformance Improvement Analysis for a Negative-pressurized Biosafety Level Laboratory
Performance Improvement Analysis for a Negative-pressurized Biosafety Level Laboratory F.J. Wang* and J.S. Huang 1 Department of Refrigeration, Air Conditioning and Energy Engineering, National Chin-Yi
More informationStudy of High Power COB LED Modules with Respect to Topology of Chips
Study of High Power COB LED Modules with Respect to Topology of Chips Nikolay Vakrilov 1), Anna Andonova 1), and Nadejda Kafadarova 2) 1) FEET, Technical University of Sofia, Sofia, Bulgaria 2) Faculty
More informationThermal Performance of Thermoelectric Cooler (TEC) Integrated Heat Sink and Optimizing Structure for Low Acoustic Noise / Power Consumption
Thermal Performance of Thermoelectric Cooler () Integrated Heat Sink and Optimizing Structure for Low Acoustic Noise / Power Consumption Masami Ikeda, Toshiaki Nakamura, Yuichi Kimura, Hajime Noda The
More informationHEAT TRANSFER STUDY OF 3-D PRINTED AIR-COOLED HEAT SINKS
HEAT TRANSFER STUDY OF 3-D PRINTED AIR-COOLED HEAT SINKS Y.S. See* and K.C. Leong *Author for correspondence Singapore Centre for 3D Printing School of Mechanical and Aerospace Engineering, Nanyang Technological
More informationComputational Analysis of Blast Furnace Pulverized Coal Injection For Iron Making
Computational Analysis of Blast Furnace Pulverized Coal Injection For Iron Making 1 Gourav Kumar Thakur, 2 Kawal lal Kurrey, 3 Abhishek bhushan 1 M.tech scholar Ccet Bhilai 2 Assistant professor ccet Bhilai
More informationStudy of water falling film over horizontal drop shaped and inverted drop shaped tubes
Study of water falling film over horizontal drop shaped and inverted drop shaped tubes Vipul Kumar Sharma, Nirmal Kant Singh 2 Dept. of Mechanical Engineering, GLBITM, Greater Noida, U.P, 236, India 2
More informationFlow Patterns and Thermal Behaviour in a Large Refrigerated Store
IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) e-issn: 2278-1684,p-ISSN: 2320-334X, Volume 13, Issue 2 Ver. III (Mar- Apr. 2016), PP 81-92 www.iosrjournals.org Flow Patterns and Thermal Behaviour
More informationHeat transfer enhancement in fire tube boiler using hellically ribbed tubes
Heat transfer enhancement in fire tube boiler using hellically ribbed tubes Miss Simantini Balasaheb Kute --------------------------------------------------------***-------------------------------------------------------------
More informationNUMERICAL STUDY ON FILM COOLING AND CONVECTIVE HEAT TRANSFER CHARACTERISTICS IN THE CUTBACK REGION OF TURBINE BLADE TRAILING EDGE
S643 NUMERICAL STUDY ON FILM COOLING AND CONVECTIVE HEAT TRANSFER CHARACTERISTICS IN THE CUTBACK REGION OF TURBINE BLADE TRAILING EDGE by Yong-Hui XIE *, Dong-Ting YE, and Zhong-Yang SHEN School of Energy
More informationA MULTI-CHANNEL COOLING SYSTEM FOR MULTIPLE HEAT SOURCE
THERMAL SCIENCE, Year 2016, Vol. 20, No. 6, pp. 1991-2000 1991 A MULTI-CHANNEL COOLING SYSTEM FOR MULTIPLE HEAT SOURCE by Shanglong XU *, Weijie WANG, Zongkun GUO, Xinglong HU, and Wei GUO Department of
More informationHEAT TRANSFER CHARACTERISTICS OF HYBRID MICROJET MICROCHANNEL COOLING MODULE
HEAT TRANSFER CHARACTERISTICS OF HYBRID MICROJET MICROCHANNEL COOLING MODULE Tomasz Muszynski 1, Rafal Andrzejczyk 1 1: Gdansk University of Technology, Faculty of Mechanical Engineering, Department of
More informationComputational Modeling of Counter Flow Heat Exchanger for LMTD Analysis
Computational Modeling of Counter Flow Heat Exchanger for LMTD Analysis Shuvam Mohanty 1, Shofique Uddin Ahmed 2 1, 2 Student, M. Tech, Department Of Mechanical Engineering, Amity University Gurgaon, Haryana
More informationOn the performance of the Stravent ventilation system in an office space Numerical and experimental investigations
On the performance of the Stravent ventilation system in an office space Numerical and experimental investigations S. Janbakhsh 1, 2 and.b. Moshfegh 1, 2 1 Division of Energy and Mechanical Engineering,
More informationNumerical Investigation of Single Phase Fluid Flow and Heat Transfer In Rectangular Micro Channel Using Nanofluids as A Cooling Liquid
RESEARCH ARTICLE OPEN ACCESS Numerical Investigation of Single Phase Fluid Flow and Heat Transfer In Rectangular Micro Channel Using Nanofluids as A Cooling Liquid Mr. Sanjay V. Barad, Prof. Mukesh N.
More informationCFD and Wind Tunnel Study of the Performance of a Multi- Directional Wind Tower with Heat Transfer Devices
Available online at www.sciencedirect.com ScienceDirect Energy Procedia 75 (2015 ) 1692 1697 The 7 th International Conference on Applied Energy ICAE2015 CFD and Wind Tunnel Study of the Performance of
More informationGraphite Foam for Cooling of Automotive Power Electronics
Graphite Foam for Cooling of Automotive Power Electronics Nidia C. Gallego 1, Steve B. White 2, Daniel Johnson 2, Kevin Pipe 2 Albert J. Shih 2, David P. Stinton 1, Edward Jih 3 1 Metals and Ceramics Division,
More informationFRENIC4800VM5, a Water-Cooled High Capacity, High Voltage Inverter
FRENIC4800VM5, a Water-Cooled Capacity, Voltage Inverter MOKUTANI Masafumi HANAZAWA Masahiko ADACHI Akio ABSTRACT -voltage inverters used to drive main rolling mills for steel and non-ferrous metal materials,
More informationPCTB PC-LAB. Power Cycling Testbench for Power Electronic Modules. Power Cycling Test Laboratory
PCTB Power Cycling Testbench for Power Electronic Modules PC-LAB Power Cycling Test Laboratory Technical Information PCTB power cycling test bench alpitronic has many years of experience in developing
More informationNUMERICAL SIMULATION OF AIR NATURAL CIRCULATION AND THERMAL RADIATION IN PASSIVE CONTAINMENT COOLING SYSTEM
NUMERICAL SIMULATION OF AIR NATURAL CIRCULATION AND THERMAL RADIATION IN PASSIVE CONTAINMENT COOLING SYSTEM Weizhong Zhang and Qian Lin Advanced Nuclear Power Technology R&D Center, Shanghai Nuclear Engineering
More informationResearch Article Experimental Study on Active Cooling Systems Used for Thermal Management of High-Power Multichip Light-Emitting Diodes
e Scientific World Journal, Article ID 563805, 7 pages http://dx.doi.org/10.1155/14/563805 Research Article Experimental Study on Active Cooling Systems Used for Thermal Management of High-Power Multichip
More informationEffects of shaft supporting structure on performance test of axial flow fan
IOP Conference Series: Materials Science and Engineering PAPER OPEN ACCESS Effects of shaft supporting structure on performance test of axial flow fan To cite this article: R Ma et al 2016 IOP Conf. Ser.:
More informationFLUID STRUCTURE INTERACTION MODELLING OF WIND TURBINE BLADES BASED ON COMPUTATIONAL FLUID DYNAMICS AND FINITE ELEMENT METHOD
Proceedings of the 6th International Conference on Mechanics and Materials in Design, Editors: J.F. Silva Gomes & S.A. Meguid, P.Delgada/Azores, 26-30 July 2015 PAPER REF: 5769 FLUID STRUCTURE INTERACTION
More informationM660 High-Power IGBT Module for Automotive Applications
M66 High-Power IGBT Module for Automotive Applications OSAWA, Akihiro * HIGUCHI, Keiichi * NAKANO, Hayato * A B S T R A C T IGBT modules for automotive applications need to have low power loss to efficiently
More informationOptimization and control of working parameters of hot blast furnace
Optimization and control of working of hot blast furnace Heng Wang 1, Shukun Cao 1, QuanchengDong 1, Yi Cui 1, Zijian Cao 1, Shuqiang Xu 1 Xiangwen Song 1, Hao Shen 1 1 336 West Road Jinan, School of Mechanical
More informationCooligy. The Heat Problem. Why Keep CPUs Cool? Active Micro-Channel Cooling. Peak Power Density (Watts/cm 2 ) Total Power (Watts)
Active MicroChannel Cooling The Heat Problem 140 120 100 80 60 40 20 0 486 Total Power (Watts) RISC Pentium Pentium 4 Pentium III Next Generation 600 400 300 200 100 Why Keep CPUs Cool? Greater Performance
More informationMODERN PRACTICES FOR MEASUREMENT OF GAS PATH PRESSURES AND TEMPERATURES FOR PERFORMANCE ASSESSMENT OF AN AXIAL TURBINE
Review of the Air Force Academy No.1 (33)/2017 MODERN PRACTICES FOR MEASUREMENT OF GAS PATH PRESSURES AND TEMPERATURES FOR PERFORMANCE ASSESSMENT OF AN AXIAL TURBINE Daniel OLARU, Valeriu VILAG, Gheorghe
More informationPerformance estimation on micro gas turbine plant recuperator
Performance estimation on micro gas turbine plant recuperator Laura Alina STIKA 1, Jeni Alina POPESCU,1, Sorin Gabriel TOMESCU 1, Valeriu-Alexandru VILAG 1 Corresponding author 1 National Research and
More informationInternational Research Journal of Engineering and Technology (IRJET) e-issn: Volume: 05 Issue: 02 Feb p-issn:
Investigation of Heat Insulation Performance of Aluminium Honeycomb Sandwich Panel With and Without Material for and Shape with Different ness Mangesh M. Kakade 1, N. C. Ghuge 2, V. S. Daund 3 1M.E. Student,
More informationNumerical analysis of eccentric orifice plate using ANSYS Fluent software
IOP Conference Series: Materials Science and Engineering PAPER OPEN ACCESS Numerical analysis of eccentric orifice plate using ANSYS Fluent software To cite this article: D Zahariea 2016 IOP Conf. Ser.:
More informationFluid Flow and Heat Transfer Analysis in AaParallel Plate Heat Sink Using a Commercial CFD Software
International Journal of Pure and Applied Physics ISSN 0973-1776 Volume 4, Number 2 (2008), pp. 97 104 Research India Publications http://www.ripublication.com/ijpap.htm Fluid Flow and Heat Transfer Analysis
More informationAn Evaluation of Heat Transfer Coefficient in an Independent Zonal Temperature Controls with CFD
An Evaluation of Heat Transfer Coefficient in an Independent Zonal Temperature Controls with CFD ZHOU, Pei; WANG, Junqi; HUANG, Gongsheng Published in: Energy Procedia Published: 01/05/2017 Document Version:
More informationHeat Transfer Augmentation of Air Cooled Internal Combustion Engine Using Fins through Numerical Techniques
Research Journal of Engineering Sciences ISSN 2278 9472 Heat Transfer Augmentation of Air Cooled Internal Combustion Engine Using Fins through Numerical Techniques Abstract Mishra A.K., Nawal S. and Thundil
More informationNumerical modelling of shielding gas flow and heat transfer in laser welding process
Numerical modelling of shielding gas flow and heat transfer in laser welding process Alireza Javidi Shirvan 1, Isabelle Choquet 1, Håkan Nilsson 2 1 University West, Department of Engineering Science,
More informationNumerical Modeling of Buoyancy-driven Natural Ventilation in a Simple Three Storey Atrium Building
Numerical Modeling of Buoyancy-driven Natural Ventilation in a Simple Three Storey Atrium Building Shafqat Hussain and Patrick H. Oosthuizen Department of Mechanical and Materials Engineering, Queen s
More informationNumerical Investigation of the Air Flow in a Novel PV-Trombe Wall Based on CFD Method
1489 A publication of CHEMICAL ENGINEERING TRANSACTIONS VOL. 39, 2014 Guest Editors: Petar Sabev Varbanov, Jiří Jaromír Klemeš, Peng Yen Liew, Jun Yow Yong Copyright 2014, AIDIC Servizi S.r.l., ISBN 978-88-95608-30-3;
More informationStudy on Water-Cooled Solar Semiconductor Air Conditioner
Send Orders for Reprints to reprints@benthamscience.ae The Open Electrical & Electronic Engineering Journal, 2015, 9, 135-140 135 Study on Water-Cooled Solar Semiconductor Air Conditioner Open Access Dong
More informationPerformance Improvement of a Micro Channel Heat Sink
Performance Improvement of a Micro Channel Heat Sink Guthula Satish Mr. K Bala Murali Krishna Mr. D Kishor Babu ABSTRACT: Thermal management of components is the most important consideration for electronic
More informationThe 3-D Numerical Simulation of a Walking Beam Type Slab Heating Furnace with Regenerative Burners
The 3-D Numerical Simulation of a Walking Beam Type Slab Heating Furnace with Regenerative Burners Jiin-Yuh Jang, Chien-Nan Lin, Sheng-Chih Chang, Chao-Hua Wang Abstract: This study investigates the furnace
More informationA COMPARATIVE STUDY OF HEAT EXCHANGER EFFECTIVENESS FOR DOUBLE HELICAL AND STRAIGHT CIRCULAR GEOMETRY
ISSN: 0976-2876 (Print) ISSN: 2250-0138(Online) A COMPARATIVE STUDY OF HEAT EXCHANGER EFFECTIVENESS FOR DOUBLE HELICAL AND STRAIGHT CIRCULAR GEOMETRY 1 Sudhanshu Kumar, 2 Sri Haritha Marthi, 3 B LaxmiNarasimha
More informationIndoor Airflow Modeling and Data Assimilation. Hengye Yang Ph.D. Student, LISC Dec. 21, 2018
Indoor Airflow Modeling and Data Assimilation Hengye Yang Ph.D. Student, LISC Dec. 21, 2018 1 Motivation Guide the design of built environment Learn about the contaminant transport Identify the pollutant
More informationMultiple-Layer Heat Dissipation Module for LED Streetlamps
Journal of Applied Science and Engineering, Vol. 15, No. 2, pp. 97 104 (2012) 97 Multiple-Layer Heat Dissipation Module for LED Streetlamps Shung-Wen Kang*, Kun-Cheng Chien and Wei-Chung Lin Department
More informationNumerical Simulation of Airflow Organization and Temperature Distribution in Bulk Curing Barn Yong-qiao WANG, Yan-qiong LI, Yan ZHAO
5th International Conference on Advanced Materials and Computer Science (ICAMCS 2016) Numerical Simulation of Airflow Organization and Temperature Distribution in Bulk Curing Barn Yong-qiao WANG, Yan-qiong
More informationElectronics Cooling Products
Advanced Cooling Technologies, Inc. Electronics Cooling Products Military Electronics Power Electronics Industrial Electronics Products Services Technologies Electronics Cooling Products Heat Pipe Assemblies
More informationADVANCES in NATURAL and APPLIED SCIENCES
ADVANCES in NATURAL and APPLIED SCIENCES ISSN: 1995-0772 Published BYAENSI Publication EISSN: 1998-1090 http://www.aensiweb.com/anas 2017 May 11(7): pages 910-918 Open Access Journal Analysis Of Ventilation
More informationNumerical Analysis of Heat Pipe Fin Stack by Delta Wing Vortex Generator
Numerical Analysis of Heat Pipe Fin Stack by Delta Wing Vortex Generator #1 Diksha D Nadkarni, #2 Dr.R.R.Arakerimath 1 Student, Mechanical Department, Pune University, India 2 Professor, Mechanical Department,
More informationCFD Analysis of Earth-Air Heat Exchanger to Evaluate the Effect of Parameters on Its Performance
PP 14-19 CFD Analysis of Earth-Air Heat Exchanger to Evaluate the Effect of Parameters on Its Performance Arpit Thakur 1, Aashish Sharma 2 1,2 (Department of Mechanical Engineering, Lovely Professional
More informationExperimental and numerical study on ground material absorptivity for solar chimney power applications
Energy and Sustainability V 219 Experimental and numerical study on ground material absorptivity for solar chimney power applications S. S. Al-Azawie, S. Hassan & M. F. Zammeri Department of Mechanical
More informationCOOLING EFFECT ENHANCEMENT IN MAGNETRON SPUTTERING SYSTEM
Fifth International Conference on CFD in the Process Industries CSIRO, Melbourne, Australia 13-15 December 2006 COOLING EFFECT ENHANCEMENT IN MAGNETRON SPUTTERING SYSTEM Jae-Sang BAEK and Youn J. KIM*
More informationAnalysis of Natural Convention Heat Transfer Enhancement in Finned Tube Heat Exchangers
Invention Journal of Research Technology in Engineering & Management (IJRTEM) ISSN: 2455-3689 www.ijrtem.com ǁ Volume 1 ǁ Issue 7 ǁ Analysis of Natural Convention Heat Transfer Enhancement in Finned Tube
More informationPerformance Study of Solar Air Heater with Baffled Duct
IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) ISSN: 2278-1684 Volume 4, Issue 5 (Nov - Dec 2012), PP 52-56 Performance Study of Solar Air Heater with Baffled Duct BK Maheshwari 1, Rajendra
More informationHeat Optimisation of Processor Cooling by Varying casing Material
e t International Journal on Emerging Technologies (Special Issue NCETST-2017) 8(1): 702-706(2017) (Published by Research Trend, Website: www.researchtrend.net) ISSN No. (Print) : 0975-8364 ISSN No. (Online)
More informationPerformance Analysis of An Indirect Evaporative Cooling System using M Cycle Devang S. Patel 1 Hardik M.Patel 2
IJSRD - International Journal for Scientific Research & Development Vol. 3, Issue 05, 2015 ISSN (online): 2321-0613 Performance Analysis of An Indirect Evaporative Cooling System using M Cycle Devang S.
More informationAnalysis of Phosphor Heat Generation and Temperature Distribution in Remoteplate Phosphor-Converted Light-Emitting Diodes
Proceedings of the Asian Conference on Thermal Sciences 2017, 1st ACTS March 26-30, 2017, Jeju Island, Korea ACTS-P00328 Analysis of Phosphor Heat Generation and Temperature Distribution in Remoteplate
More informationCFD Modelling of an Aerosol Exposure Chamber for Medical Studies G. Manenti, M. Derudi, G. Nano, R. Rota
CFD Modelling of an Aerosol Exposure Chamber for Medical Studies G. Manenti, M. Derudi, G. Nano, R. Rota Dip. di Chimica, Materiali e Ingegneria Chimica G. Natta, Politecnico di Milano, via Mancinelli
More informationAN ANALYSIS OF POROUS MEDIA HEAT SINKS FOR NATURAL CONVECTION COOLED MICROELECTRONIC SYSTEMS. Eric R. Savery
AN ANALYSIS OF POROUS MEDIA HEAT SINKS FOR NATURAL CONVECTION COOLED MICROELECTRONIC SYSTEMS. by Eric R. Savery Engineering Project submitted in partial fulfillment of the requirements for the degree of
More informationInternational Journal of Advance Engineering and Research Development
Scientific Journal of Impact Factor (SJIF): 4.72 International Journal of Advance Engineering and Research Development Volume 4, Issue 12, December -2017 e-issn (O): 2348-4470 p-issn (P): 2348-6406 Performance
More informationExperimental Validation of a Computational Fluid Dynamics Model for IAQ applications in Ice Rink Arenas
Yang, C., Demokritou, P., Chen Q., and Spengler, J. 2001. Experimental validation of a computational fluid dynamics model for IAQ applications in ice rink arenas, Indoor Air, 11(2), 120-126. Experimental
More informationSolar Cell Cooling and Heat Recovery in a Concentrated Photovoltaic System
REET: Renewable Energies and Environmental Technologies Solar Cell Cooling and Heat Recovery in a Concentrated Photovoltaic System Marco Cozzini Fondazione Bruno Kessler (FBK) Trento, Italy Excerpt from
More informationNOVEL MATERIALS FOR IMPROVED QUALITY OF RF-PA IN BASE-STATION APPLICATIONS
Novel Material for Improved Quality of RF-PA in Base-Station Applications Co-Authored by Nokia Research Center and Freescale Semiconductor Presented at 10 th International Workshop on THERMal INvestigations
More informationExperimental and Numerical Study of Heat Transfer Process of Chilled Water Storage Tank
Universal Journal of Mechanical Engineering 6(4): 63-75, 2018 DOI: 10.13189/ujme.2018.060402 http://www.hrpub.org Experimental and Numerical Study of Heat Transfer Process of Chilled Water Storage Tank
More informationSmart Integration of Thermal Management Systems for Electronics Cooling
Smart Integration of Thermal Management Systems for Electronics Cooling Dr. Ir. Wessel W. Wits, University of Twente, Faculty of Engineering Technology, Laboratory of Design, Production and Management,
More informationMultiphysics power electronics note 5
Multiphysics Simulation for Designing Laminated Bus Bars power electronics note 5 Antoine Gerlaud, Tom Giuliano, and Fabrice Hamond Introduction Improvement of IGBT switching characteristics at higher
More informationLifetime Prediction and Design Tool Development for Power Electronics Modules
Lifetime Prediction and Design Tool Development for Power Electronics Modules Dr Hua Lu and Prof. Chris Bailey University of Greenwich 30 Park Row, London SE0 9 LS IeMRC and Electronics Yorkshire Technical
More information