Optimization of single phase microchannel heat exchanger in electric vehicle
Finding the optimal shape and dimensions for a microchannel can improve the efficiency of the microchannel heat exchanger so that the heat transfer coefficient is maximized while the pressure drop across the channel is minimized. Computational Fluid Dynamics (CFD), Response Surface Methodology (RSM)...
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| Format: | Final Year Project (FYP) |
| Language: | English |
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Nanyang Technological University
2022
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| Online Access: | https://hdl.handle.net/10356/158818 |
| _version_ | 1826129160175616000 |
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| author | Cheng, Darren Chin Wee |
| author2 | Ooi Kim Tiow |
| author_facet | Ooi Kim Tiow Cheng, Darren Chin Wee |
| author_sort | Cheng, Darren Chin Wee |
| collection | NTU |
| description | Finding the optimal shape and dimensions for a microchannel can improve the efficiency of the microchannel heat exchanger so that the heat transfer coefficient is maximized while the pressure drop across the channel is minimized. Computational Fluid Dynamics (CFD), Response Surface Methodology (RSM), and Multi-Objective Genetic Algorithm (MOGA) were used to optimize the microchannel heat exchanger. In this process optimization, the input variable consisted of three geometric parameters for the rectangular microchannel, two geometric parameters for the re-entrant microchannel while output objectives include maximizing the heat transfer coefficient, h, and minimizing the pressure drop, Pdrop at Reynolds numbers from 100 to 2300. By using Central Composite Design (CCD) for each Reynolds number, 15 design points were initially generated and RSM was then used to generate models to approximate the parameters’ relation to the objective by using the second-order polynomial. Different manifold shapes are investigated to study the changes in the heat exchanger performance. In addition, sinusoidal wave microchannels with different periods and amplitudes for a specific length was studied and optimized as well. |
| first_indexed | 2024-10-01T07:36:10Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/158818 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:36:10Z |
| publishDate | 2022 |
| publisher | Nanyang Technological University |
| record_format | dspace |
| spelling | ntu-10356/1588182023-03-04T20:06:32Z Optimization of single phase microchannel heat exchanger in electric vehicle Cheng, Darren Chin Wee Ooi Kim Tiow School of Mechanical and Aerospace Engineering MKTOOI@ntu.edu.sg Engineering::Mechanical engineering Finding the optimal shape and dimensions for a microchannel can improve the efficiency of the microchannel heat exchanger so that the heat transfer coefficient is maximized while the pressure drop across the channel is minimized. Computational Fluid Dynamics (CFD), Response Surface Methodology (RSM), and Multi-Objective Genetic Algorithm (MOGA) were used to optimize the microchannel heat exchanger. In this process optimization, the input variable consisted of three geometric parameters for the rectangular microchannel, two geometric parameters for the re-entrant microchannel while output objectives include maximizing the heat transfer coefficient, h, and minimizing the pressure drop, Pdrop at Reynolds numbers from 100 to 2300. By using Central Composite Design (CCD) for each Reynolds number, 15 design points were initially generated and RSM was then used to generate models to approximate the parameters’ relation to the objective by using the second-order polynomial. Different manifold shapes are investigated to study the changes in the heat exchanger performance. In addition, sinusoidal wave microchannels with different periods and amplitudes for a specific length was studied and optimized as well. Bachelor of Engineering (Mechanical Engineering) 2022-06-07T03:41:34Z 2022-06-07T03:41:34Z 2022 Final Year Project (FYP) Cheng, D. C. W. (2022). Optimization of single phase microchannel heat exchanger in electric vehicle. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/158818 https://hdl.handle.net/10356/158818 en B167 application/pdf Nanyang Technological University |
| spellingShingle | Engineering::Mechanical engineering Cheng, Darren Chin Wee Optimization of single phase microchannel heat exchanger in electric vehicle |
| title | Optimization of single phase microchannel heat exchanger in electric vehicle |
| title_full | Optimization of single phase microchannel heat exchanger in electric vehicle |
| title_fullStr | Optimization of single phase microchannel heat exchanger in electric vehicle |
| title_full_unstemmed | Optimization of single phase microchannel heat exchanger in electric vehicle |
| title_short | Optimization of single phase microchannel heat exchanger in electric vehicle |
| title_sort | optimization of single phase microchannel heat exchanger in electric vehicle |
| topic | Engineering::Mechanical engineering |
| url | https://hdl.handle.net/10356/158818 |
| work_keys_str_mv | AT chengdarrenchinwee optimizationofsinglephasemicrochannelheatexchangerinelectricvehicle |