A technical review on regeneration of liquid desiccant using solar energy

Developments in liquid desiccant dehumidification system integrated with evaporative cooling technology

“…Modi 15 A study on the development of LD regeneration technology using solar energy and the hybrid solar system is discussed in the paper. With the significant investment, LDAC has less than 30% to 50% energy usage than conventional VCRS.…”

“…Table 2 summarizes the review articles in the field of LDCS. Along with it, researchers have extensively studied the LDCS, for example, developments in LDCS techniques, 10,19 LD based evaporative cooling, 11,20,21 different LD materials, 13,22 regeneration techniques of F I G U R E 1 (A, B) Energy demand in different sectors (*Industry excludes non-combusted use of fuels), Final energy consumption in building 1 LD, 15,23,24 different types of membrane-based LDCS methods, 16,25 and heat and mass transfer processes in dehumidifier and regenerator by mathematical modeling. 12,18,26 However, these review papers have not given sufficient attention to the various new techniques used in an integrated LD dehumidifier with evaporative cooling.…”

Characterisation and evaluation of a new phase change enhanced working solution for liquid desiccant cooling systems

“…3and 4 The thermal conductivity of the PCM-LiCl desiccant solution was calculated using Eqs. (8) and (9) based on the composition and particle size of the MPCM determined. It is noted that the diameter of the particles dispersed into the LiCl desiccant solution was assumed to be the same as the volumetric average diameter of the particles.…”

“…A liquid desiccant is generally a concentrated salt solution such as lithium bromide (LiBr), lithium chloride (LiCl), and calcium chloride (CaCl2) that directly absorbs moisture without cooling the air below its dew point. Liquid desiccant cooling can be driven by low-grade thermal energy (50-90 o C) such as waste heat or solar energy [8].…”

A Moisture-Penetrating Humidity Pump Directly Powered by One-Sun Illumination

“…The rotary system, based on solid desiccant system, can handle the latent heat load continuously and more efficiently (La et al., 2010). The liquid desiccant absorption system, which utilizes the hygroscopic salt solution instead of a solid desiccant, can adjust the indoor humidity accurately and continuously (Mei and Dai, 2008, Shukla and Modi, 2017). In recent years, the desiccant-coated heat exchanger system is developing very fast, with merits of both vapor compression system and sorption-based system (Tu et al., 2017, Zheng et al., 2015a, Zheng et al., 2015b).…”