Experimental Analysis on the Performance of Regeneration of Solar Liquid Desiccant System under Different Operation Condition

Abstract:

Liquid desiccant air-conditioning system is one kind of thermally driven open-cycle absorption air-conditioning systems which have been widely researched and applied because of its unique advantages in recent years.In this paper, an experimental equipment of liquid desiccant air-conditioning system was set up based on the mechanism of liquid desiccant dehumidification and regeneration. The dehumidifier and regenerator were all counter-flow towers and body of the tower were made of stainless steel to withstand the corrosive effect of the liquid desiccant. In experiments, mixture desiccant of calcium chloride and lithium chloride was applied.The performance of regeneration of the system was studied under different system operating condition. The effects of the inlet parameters on the efficiency of regeneration are discussed. The results show that the mass flow rate,humidity of the air,temperature and mass flow rate of the diluted solution can all affect the performance of regeneration of the system.

• Periodical: Applied Mechanics and Materials (Volume 521)
• Pages: 48-51
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.521.48
• Online since: February 2014
• Authors: Sun Jian*
• Keywords: Experimental Analysis, Mixture Desiccant, Performance of Regeneration

References

[1] P. Gandhidasan, C.F. Kettleborough and M. Rifatullah1: 986, Calculation of heat and mass transfer coefficients in a packed tower operation with a desiccant-air system, Int. J. Solar Energy Engineering , 108(5): 123-127.

DOI: 10.1115/1.3268078

[2] P. Gandhidasan: 1990, Reconcentration of aqueous solutions in a packed bed : A simple approach,J. of Solar Energy Engineering, ASME , 112(11): 286-272.

DOI: 10.1115/1.2929933

[3] K. Gommed, G. Grossman: 2007, Experimental investigation of a liquid desiccant system for solar cooling and dehumidification, Solar Energy , 81: 131–138.

DOI: 10.1016/j.solener.2006.05.006

[4] W. Kessling, E. Laevemann and C. Kapfhammer: 1998, Energy storage for desiccant cooling systems component development, Int.J. Solar Energy, 64(4): 209-221.

DOI: 10.1016/s0038-092x(98)00081-4

[5] S. Younus ahmed, P. Gandhidaxan and A.A. AL-Farayedhi: 1998, Thermodynamic analysis of liquid desiccants, Solar Energy, 62(1): 11-18.

DOI: 10.1016/s0038-092x(97)00087-x