Simulation of Vapor Absorption of Aqueous Libr Solution on Alternate Heat and Mass Transfer Surfaces of Corrugated Plates and Mesh Pecking

Abstract:

The traditional tube-shell absorber is relatively too bulky to be used in a small absorption chiller for solar air conditioning. As the outer-surface of solution film on the traditional absorber surface is easier to be saturated, several alternate heat and mass transfer absorber schemes have been proposed. However, the film-inversion absorber uses only half surfaces while the dual-side film-inversion absorber scheme is of good performance but too complicated to fulfill. The scheme using stainless steel mesh packing as the film guider is much easier and more uniform in distributing film, and it can also act as the framework for exposing dual-side film to the vapor for adiabatic mass transfer. The alternate heat and mass transfer configurations with plate surfaces and mesh packing are of promising performance for small chiller absorbers.

• Periodical: Advanced Materials Research (Volumes 989-994)
• Pages: 831-836
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.989-994.831
• Online since: July 2014
• Authors: Rui Bing Cao*, Ya Ping Chen, Jia Feng Wu
• Keywords: Alternate Heat, Aqueous LiBr Absorption, Corrugated Plates, Falling Film, Mass Transfer, Mesh Pecking, Solar Chillers

References

[1] M. S. Grogori, K. M. Omar and J. L. Chiristophor: Absorption of gas into a wavy falling film. Chemical Engineering Science, Vol. 60 (3), (2005), pp.827-838.

[2] K. J. Kyeong, P. C. Woo and K. Y. Tae. The effect of micro-scale surface treatment on heat and mass transfer performance for a falling film H2O/LiBr absorber. Int. J. Refrigeration, Vol. 26, (2003), pp.575-585.

DOI: 10.1016/s0140-7007(02)00147-0

[3] G Andreas and S. Karl. Analysis of the process characteristics of an absorption heat transformer with compact heat exchangers and YFE-E181. Int. J. thermal science, 39, (2000), pp.30-38.

DOI: 10.1016/s1290-0729(00)00197-5

[4] D. A. Reay. Compact heat exchangers, enhancement and heat pump. Int. J. Refrigeration, Vol. 25, (2002), pp.460-470.

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

[5] L. Wang, G.M. Chen and Q. Wang, et al. Thermodynamic performance analysis of gas-fired air-cooled adiabatic absorption refrigeration systems, Applied Thermal Engineering, Vol. 27 (8-9), (2007), pp.1642-1652.

DOI: 10.1016/j.applthermaleng.2005.06.014

[6] Y. P. Chen, Y. B. Li and M. H. Shi. Numerical Simulation of Characteristics of Falling Film Absorption on Vertical Corrugation Plates for Aqueous Li-Br Solution. In: Wang B. X., ed. Proc. of the 6th Int. Symposium on Heat Transfer, (China Sciences Multi-Media Electronic Publishing House, Beijing, China, 2004), pp.630-634.

[7] Y. P. Chen, Y. B. Li and K. Y. Wang, et al. Experimental study on falling film absorption with aqueous Li-Br solution on two-scale corrugation plate surfaces. In: Hua B., Guo Z. Y. eds. Proc. of 3rd ISHTEEC, (South China University of Technology Press. Guangzhou, China, 2004), pp.335-339.

[8] MR Islam, N. Wijeysundera and J. C. Ho. Performance study of falling-film absorber with film-inverting configuration. Int. J. Refrigeration, Vol. 26, (2003), pp.909-917.

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

[9] Y. P. Chen, C. J. Shi and M. H. Shi. Heat and mass transfer enhancement during absorption process with double-side film-inverting configuration. J. Chemical Industry and Engineering, Vol. 59(1), (2008), pp.19-24. (in Chinese).

[10] Y. P. Chen, C. J. Shi and M. H. Shi, et al. Numerical simulation of heat and mass transfer enhancement in absorption process with double-side film-inversion. Proceedings of the Sixth International ASME Conference on Nanochannels, Microchannels and Minichannels. ICNMM2008, (Darmstadt, Germany, 2008).

DOI: 10.1115/icnmm2008-62259

[11] Y. P. Chen, F. Liu, R. B. Cao, et al. Study on alternate heat and mass transfer Absorption Process of Aqueous LiBr Solution for Solar Chillers. Proceedings of the Second International Conference on Building Energy and Environment, T08-17, (Boulder, Colorado, USA. 2012).