Investigation on a two-stage solar liquid-desiccant (LiBr) dehumidification system assisted by CaCl2 solution

Thermodynamic analysis of a combined organic Rankine cycle and vapor compression cycle system activated with low temperature heat sources using low GWP fluids

“…Several novel ideas to use heat pipes in adsorption water chiller or ice maker were presented by Wang [7] that reported a cooling COP of 0.4 for a small scale adsorption water chiller driven by 85 C. Regarding the experimental studies with activated carbon, Aghbalou et al [8] estimated a COP of 0.144, while for other mixtures (like methanol/charcoal) Khattab [9] achieved COP values around 0.15. Substantial improvement in desiccant performance has been recently reported: Li et al [10] reported a cooling COP of 0.95 for a two-stage solid desiccant adsorption system, while Xiong et al [11] obtained a COP value of 0.97 with a two-stage liquid desiccant (LiBr) assisted by CaCl 2 . Finally, ejector cycles can provide cooling with inexpensive equipment, and they are easy to construct and maintain.…”

Experimental studies on the performance of dehumidifier using calcium chloride as a liquid desiccant

“…In the experimental and modelling researches carried out by Pietruschka et al (2006) the Calcium chloride solution offered significantly lower dehumidification potential than Lithium Chloride solution, although it had a cheaper price and no causticity to metal. Xiong et al (2009) experimentally demonstrated a two-stage solar powered liquid desiccant dehumidification system, for which two kinds of desiccant solution (Calcium chloride and Lithium bromide) are fed to the two dehumidification stages separately. In this study, air moisture (latent) load is separately removed by a pre-dehumidifier using cheap Calcium chloride (CaCl 2 ) and a main dehumidifier using stable Lithium bromide (LiBr).…”

Performance evaluation of packed tower liquid desiccant dehumidifier based on LSSVM

“…Among of them, many researchers investigated on system design. Xiong et al developed a two stage liquid desiccant dehumidification system with two different kinds of desiccant solutions, lithium chloride and calcium bromide, to lower the desiccant investment [3]. Li et al proposed an open cycle liquid desiccant dehumidification system powered with a solar collector and the numerical simulation results showed that more than 25% of operating cost can be saved compared with a conventional vapor compression system [4].…”