An Inversed Numerical Method of Studying Characteristic Boiling Curve of CNT Nanofluid
Lumped parameters would be invalidated near critical heat flux (CHF) when Bi>0.1, though which has been widely used in calculating transient boiling curves for quenching experiments. In this paper, an inversed numerical method is developed to calculate transient boiling curve during quenching. Simultaneously, validation of this numerical method is carried out. Comparing with the results, it indicates that inversed numerical method has a good agreement with exact results. Then boiling curve of CNT nanofluid is calculated using this inversed numerical method. Further, the corresponding results are compared with lumped parameters results through boiling experiments. It implies that there is 13.3％ difference at CHF point comparing with lumped parameters. The inversed numerical CHF is 0.647 MW/m2, simultaneously the lumped parameters CHF is 0.571 MW/m2. Similarly, a time delay is also detected from lumped parameters. The whole calculation results show that an inversed numerical calculation is competitive to analyze the boiling curve corresponding to single lumped parameters method for quenching experiments.
Liang Zhang Yacai Hu Zitao Yu Jianren Fan
Department of Energy Engineering Zhejiang University Hangzhou, China, 310027
国际会议
The Ninth Asian Thermophysical Properties Conference(第九届亚洲热物理性能会议 ATPC 2010)
北京
英文
402-407
2010-10-19（万方平台首次上网日期，不代表论文的发表时间）