Abstract：Based on experimental results of ternary non-azeotropic refrigerant mixture R417A flowing and boiling in one smooth and two internally grooved horizontal tubes with different geometrical parameters, a boiling heat transfer correlations was developed for refrigerant mixtures flowing inside micro-fin tubes by applying the enhancement factor in the present modified-Kattan model which was modified by the experimental data of R417A in a smooth tube. The comparison between the calculation and the experimental results indicates that the prediction by the present correlations is in good agreement with the experiment of refrigerant mixtures inside different micro-fin tubes with a standard deviation of ± 30% for vapor qualities below 80%.
出版日期: 2008-12-05
引用本文:
. Boiling heat transfer correlations for refrigerant
mixtures flowing inside micro-fin tubes[J]. Frontiers of Energy and Power Engineering in China, 2008, 2(4): 489-493.
ZHANG Xiaoyan, ZHANG Xingqun, CHEN Yunguang, YUAN Xiuling. Boiling heat transfer correlations for refrigerant
mixtures flowing inside micro-fin tubes. Front. Energy, 2008, 2(4): 489-493.
Chen J C . Correlation for boiling heat transfer to saturated fluids in convectiveflow. Industrial and Engineering Chemistry,Process Design and Development, 1966, 5(3): 322–329. doi:10.1021/i260019a023
2
Koyama S, Yu J, Momoki S, et al.. Forced convective flow boiling heat transferof pure refrigerants inside a horizontal microfin tube. Proceedings of the Convective Flow Boiling Conference. London: Taylorand Francis, 1995, 137–142
3
Cavallini A, Del Col D, Doretti L, et al.. Refrigerant vaporization inside enhanced tubes:a heat transfer model. International Journalof Heat and Technology, 1999, 17(2): 29–36
4
Thome J R, Kattan N, Favrat D . Evaporation in microfin tubes: a generalized predictionmodel. Proceedings of the Convective Flowand Pool Boiling Conference. Philadelphia: Taylor and Francis, 1999, 239–244
5
Wellsandt S, Vamling L . Evaporation of R407C andR410A in a horizontal herringbone microfin tube: heat transfer andpressure drop. International Journal ofRef rigeration, 2005, 28(6): 901–911. doi:10.1016/j.ijrefrig.2005.01.006
6
Thome J R, Shakir S . A new correlation for nucleateboiling of aqueous mixtures. AIChE SympSer, 1987, 83(257): 46–51
7
Zhang Xiaoyan, Yuan Xiuling, Tian Huaizhang . Evaporation heat transfer of R417A flowing inside horizontalsmooth and internally grooved tubes. Journalof Xi'an Jiaotong University, 2007, 41(1): 18–22
8
Kattan N, Thome J R, Favrat D . Flow boiling in horizontal tubes, part 3: developmentof a new heat transfer model based on flow pattern. ASME Journal of Heat Transfer, 1998, 120(2): 156–164. doi:10.1115/1.2830039
9
Boissieux X, Heikal M R, Johns R A . Two-phase heat transfer coefficients of three HFC refrigerantsinside a horizontal smooth tube, part I: evaporation. International Journal of Refrigeration, 2000, 23(4): 269–283. doi:10.1016/S0140-7007(99)00056-0
10
Kuo Chenghu, Wang Chichuan . Horizontal flow boiling ofR22 and R407C in a 9.52 mm microfin tube. Applied Thermal Engineering, 1996, 16(8, 9): 719–732. doi:10.1016/1359-4311(95)00076-3
