Numerical Study on Heat and Mass Transfer of Plate Falling Film Absorber with Wire-Meshed Fins

Abstract:

A mathematical model of heat and mass transfer process in plate falling film absorber with wire-meshed fins was developed. The model could predict temperature and concentration distribution as well as the solution side heat transfer coefficient and the absorption rate. The results verify that heat and mass transfer performance of the plate falling film absorber with wire-meshed fins is better than the past absorber. Compared with the plate falling film absorber without fins, heat transfer coefficient of the absorber in this article increases 1.06 times and the absorption rate increases 2.32 times.

• Periodical: Applied Mechanics and Materials (Volumes 204-208)
• Pages: 4305-4314
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.204-208.4305
• Online since: October 2012
• Authors: Jing Jing Zhang, Dan Dan Zhao, Lu Chun Wan, Bao Huai Zhang, Ya Ping Chen
• Keywords: Heat and Mass Transfer, Mathematical Models, Plate Falling Film Absorber, Wire-Meshed Fins

References

[1] Setterwall F, Glebov D, Wilkensten B. Low temperature driven absorption chiller. The 2nd International Heat Powered Cycles Conference. Paris, 2001: 349-353

[2] Flamensbeck M, Summerer F, Riesch P, et al. A cost effective absorption chiller with plate heat exchangers using water and hydroxides. Applied Thermal Engineering, 1998, 18 (6): 413-425

DOI: 10.1016/s1359-4311(97)00049-5

[3] Shitara A , Nishiyama N. Study on transfer of plate -fin type generator for absorption machine. 19th international congress of refrigeration 1995 , Hague.

[4] Reay D A. Compact heat exchangers, enhancement and heat pumps. Int. J. Refrigeration, 2002, 25:460-470

DOI: 10.1016/s0140-7007(00)00005-0

[5] Yaping Chen，Yingbin Li, Mingheng Shi. Numerical Simulation of Characteristics of Falling Film Absorption on Vertical Corrugation Plates for Aqueous Li-Br Solution(in Chinese). In: Wang Buxuan, ed. Proc of the 6th Int. Symposium on Heat Transfer, Beijing: China Sciences Multi-Media Electronic Publishing House. 2004. 630-634.

[6] Yaping Chen, Yingbin Li, Mingheng Shi. Experimental study on falling film absorption with aqueous Li-Br solution on two-scale corrugation plate surfaces(in Chinese). Proceedings of 3rd ISHTEEC, In: Hua Ben, et al. (ed.) South China University of Technology Press，2004: 335-339

[7] M R Islam, N Wijeysundera, J C Ho. Performance study of falling- film absorber with film- inverting configuration. International Journal of Refrigeration. 2003, 26: 909-917

DOI: 10.1016/s0140-7007(03)00078-1

[8] Xiaoyu Cui, Cong Tang, Meiling Li. Theoretical study of plate falling film absorber with film-inverting configuration(in Chinese). Journal of Chemical Industry and Engineering, 2006,57 ( 5) : 1089-1094

[9] Jia Mingsheng. The main physical parameters calculate equations for LiBr solution(in Chinese). Journals of Zhanjing Ocean University, 2002, 22(3): 52-58

[10] Xiaoyu Cui , Cong Tang, Meiling Li. Design and performance study of plate falling film with a film inverting configuration(in Chinese). Journal of Refrigeration, 2005, 26(3): 47-52