Assessment of dimensionless CHF correlations for subcooled flow boiling in microgravity and Earth gravity |
| |
| Affiliation: | 1. Boiling and Two-phase Flow Laboratory, School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907, USA;2. NASA Glenn Research Center, 21000 Brookpark Road, Cleveland, OH 44135, USA;1. School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;2. Dongfeng Commercial Vehicle Technical Center, Wuhan, China;1. Delta Energy Innovation Technology, Delta Energy Group, No. 413, Venture Building, No. 1 Changjiang Road, National Economic and Technology Development Zone, Jiaozhou, Qingdao 266300, Shandong, China;2. Advanced Research Center for Multiphase Flow and Energy Transfer, No. 1 HuiYing Road, Jiaozhou, Qingdao 266300, Shandong, China;3. College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, JiangSu 211106, China;1. Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, China;2. Purdue University Boiling and Two-Phase Flow Laboratory (PU-BTPFL), School of Mechanical Engineering, 585 Purdue Mall, West Lafayette, IN 47907, USA;1. CCNC Key Laboratory on Nuclear Reactor Thermal Hydraulics Technology, Nuclear Power Institute of China, Chengdu 610213, China;2. Mechanical Engineering Department, Virginia Tech, 635 Prices Fork, Blacksburg, VA 24060, United States;3. Engineering Physics Department, University of Wisconsin, 1500 Engineering Drive, Madison, WI 53703, United States |
| |
| Abstract: | A comprehensive review and analysis of prior subcooled flow boiling CHF correlations was conducted to identify those correlations that provide the most accurate predictions for dielectric working fluids and small rectangular flow passages found in electronics cooling applications in both microgravity and Earth gravity. Since most prior correlations were derived from water databases, only those with dimensionless form were deemed potentially suitable for other working fluids. Only a small fraction of these dimensionless correlations were found to tackle other fluids and more complicated flow and heating configurations with acceptable accuracy. These correlations were ranked relative to mean error, mean absolute error, and root mean square error. Better predictions where achieved when correlations were based on the heated diameter rather than the hydraulic diameter because of the ability of the former to better describe vapor development in subcooled flow. Two previous correlations by Hall and Mudawar provided the best overall CHF predictions for both microgravity and Earth gravity. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
