Boiling Heat Transfer Characteristics of Noah-2100A and HFE-649 in Pin-Fin Microchannel Heat Sink
Noah-2100A and HFE-649, as two electronics fluorinated liquids (EFLs) with low saturation temperature, high safety, excellent insulation properties, and low environmental impact, are considered as replacements for the refrigerants with high Global Warming Potential (GWP), such as HFC-134a and HFC-24...
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MDPI AG
2024-12-01
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| author | Hanying Jiang Xiucong Zhao Meng Zhang |
| author_facet | Hanying Jiang Xiucong Zhao Meng Zhang |
| author_sort | Hanying Jiang |
| collection | DOAJ |
| description | Noah-2100A and HFE-649, as two electronics fluorinated liquids (EFLs) with low saturation temperature, high safety, excellent insulation properties, and low environmental impact, are considered as replacements for the refrigerants with high Global Warming Potential (GWP), such as HFC-134a and HFC-245fa, in electronic cooling system. However, there is still a knowledge gap of boiling heat transfer for these two EFLs, especially in pin-fin microchannel. The effect of inlet temperatures, mass flow rates, and inlet vapor qualities on boiling heat transfer for two EFLs were studied experimentally in this paper. Overall, though the Noah-2100 has a higher pressure drop-in microchannel than HFE-649, Noah-2100A shows a higher overall thermal performance than HFE-649. Newly developed correlations of the Nusselt number (Nu) and pressure drop for two EFLs in a pin-fin microchannel heat sink were also presented. The proposed correlations can achieve a 10% and 11% mean average percentage error for Nu number and pressure drop. |
| format | Article |
| id | doaj-art-b5ecdc4f7e5e402f962d8e54e61783f2 |
| institution | OA Journals |
| issn | 1996-1073 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj-art-b5ecdc4f7e5e402f962d8e54e61783f22025-08-20T02:00:37ZengMDPI AGEnergies1996-10732024-12-011724621610.3390/en17246216Boiling Heat Transfer Characteristics of Noah-2100A and HFE-649 in Pin-Fin Microchannel Heat SinkHanying Jiang0Xiucong Zhao1Meng Zhang2Institute of Refrigeration and Cryogenics, Zhejiang University, Hangzhou 310027, ChinaDepartment of Mechanical Engineering, Yangzhou University, Yangzhou 225012, ChinaDepartment of Mechanical Engineering, Yangzhou University, Yangzhou 225012, ChinaNoah-2100A and HFE-649, as two electronics fluorinated liquids (EFLs) with low saturation temperature, high safety, excellent insulation properties, and low environmental impact, are considered as replacements for the refrigerants with high Global Warming Potential (GWP), such as HFC-134a and HFC-245fa, in electronic cooling system. However, there is still a knowledge gap of boiling heat transfer for these two EFLs, especially in pin-fin microchannel. The effect of inlet temperatures, mass flow rates, and inlet vapor qualities on boiling heat transfer for two EFLs were studied experimentally in this paper. Overall, though the Noah-2100 has a higher pressure drop-in microchannel than HFE-649, Noah-2100A shows a higher overall thermal performance than HFE-649. Newly developed correlations of the Nusselt number (Nu) and pressure drop for two EFLs in a pin-fin microchannel heat sink were also presented. The proposed correlations can achieve a 10% and 11% mean average percentage error for Nu number and pressure drop.https://www.mdpi.com/1996-1073/17/24/6216Noah-2100AHFE-649microchannelheat transfer coefficientpressure drop |
| spellingShingle | Hanying Jiang Xiucong Zhao Meng Zhang Boiling Heat Transfer Characteristics of Noah-2100A and HFE-649 in Pin-Fin Microchannel Heat Sink Energies Noah-2100A HFE-649 microchannel heat transfer coefficient pressure drop |
| title | Boiling Heat Transfer Characteristics of Noah-2100A and HFE-649 in Pin-Fin Microchannel Heat Sink |
| title_full | Boiling Heat Transfer Characteristics of Noah-2100A and HFE-649 in Pin-Fin Microchannel Heat Sink |
| title_fullStr | Boiling Heat Transfer Characteristics of Noah-2100A and HFE-649 in Pin-Fin Microchannel Heat Sink |
| title_full_unstemmed | Boiling Heat Transfer Characteristics of Noah-2100A and HFE-649 in Pin-Fin Microchannel Heat Sink |
| title_short | Boiling Heat Transfer Characteristics of Noah-2100A and HFE-649 in Pin-Fin Microchannel Heat Sink |
| title_sort | boiling heat transfer characteristics of noah 2100a and hfe 649 in pin fin microchannel heat sink |
| topic | Noah-2100A HFE-649 microchannel heat transfer coefficient pressure drop |
| url | https://www.mdpi.com/1996-1073/17/24/6216 |
| work_keys_str_mv | AT hanyingjiang boilingheattransfercharacteristicsofnoah2100aandhfe649inpinfinmicrochannelheatsink AT xiucongzhao boilingheattransfercharacteristicsofnoah2100aandhfe649inpinfinmicrochannelheatsink AT mengzhang boilingheattransfercharacteristicsofnoah2100aandhfe649inpinfinmicrochannelheatsink |