Research on Ratio Selection of Mixed LiBr-CaCl2 Solution for Liquid Desiccant Cooling System

Xiao Zhao; Xiu Wei Li; Fang Wang

doi:10.4028/www.scientific.net/AMM.525.598

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 525Research on Ratio Selection of Mixed LiBr-CaCl2...

Research on Ratio Selection of Mixed LiBr-CaCl₂ Solution for Liquid Desiccant Cooling System

Abstract:

In recent years, liquid desiccant cooling system has shown its potential research value for its low-grade heat using and energy-saving. Thermal properties of liquid desiccant, especially its vapor pressure greatly affects the dehumidification efficiency of this system. Here comes the problem to find a liquid desiccant with better dehumidification effect and lower cost. To solve this problem, a local composition model: nonrandom two-liquid (NRTL) theory could be used to calculate a mixed solution of LiBr-CaCl₂, and calculates the ideal mixing ratio of this solution in a working environment. The best mixing ratio with cost-effectiveness can be worked out by taking into account the initial cost of the solution. Study shows that: compared to single LiBr solution, the dehumidification effect could be raised by more than 8.2% and the costs could be reduced by 20% with mixed LiBr-CaCl₂ solution.

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Periodical:

Applied Mechanics and Materials (Volume 525)

Pages:

598-602

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.525.598

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Online since:

February 2014

Authors:

Xiao Zhao, Xiu Wei Li, Fang Wang

Keywords:

Activity Coefficient, Cost-Effectiveness, Energy Saving, Liquid Dehumidification

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