Dynamic behaviour simulation of a liquid desiccant dehumidification system

Kabeel, A.E.; Khalil, A.; Elsayed, S.S.; Alatyar, Ahmed M.

doi:10.1016/j.energy.2017.11.161

Cited by 20 publications

(3 citation statements)

References 15 publications

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“…To account for the interface dehumidification process [17], the penetration mass transfer model was employed in the simulation. In recent years the development of energy-efficient hybrid air conditioners, especially for tropical climates, has received substantial attention from desiccant-based dehumidification [18]. This study covers the current research on fluid desiccant air from humidifiers [19] in a complete literature review.…”

Section: Introductionmentioning

confidence: 99%

Liquid Desiccant Dehumidification and Cooling System: A Review

Caro¹

2021

Journal of Thermal and Fluid Science

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Liquid dehumidification was shown to be an efficient way of extracting air moisture with comparatively minimal energy. Draining cooling systems have been given significant attention in recent years because they are capable of using little thermal energy. The potential for hybrid cooling (HCS) as well as simulation results shows the benefits of this system in comparison with traditional vapor compression systems (VCS). When one tone of the compressor is employed in an HCS instead of VCS the cooling impact and COP increase in the HCS by 60 percent and 45 percent correspondingly.

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Section: Introductionmentioning

confidence: 99%

Liquid Desiccant Dehumidification and Cooling System: A Review

Caro¹

2021

Journal of Thermal and Fluid Science

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“…Generally, the liquid desiccants adopted are always the electrolyte solutions including LiCl solution, CaCl 2 solution and LiBr solution. 17 Most studies on thermal properties of liquid desiccants were for pure LiCl solution, pure CaCl 2 solution or pure LiBr solution only. [18][19][20][21] Pure LiCl solution has good thermal properties and is the most stable liquid desiccant but with high cost; on the other hand, CaCl 2 solution is the cheapest and most readily available liquid desiccant but is relatively unstable.…”

Section: Introductionmentioning

confidence: 99%

Performance analysis and mixing ratio selection of mixed liquid desiccant for a dehumidification system

Xiao-qiang

et al. 2019

Indoor and Built Environment

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Liquid-desiccant dehumidification system in building air-conditioning has high energy efficiency in comparison to traditional dehumidification technology that needs to cool air below the dew point temperature. Since the dehumidification process dominates the performance of a liquid-desiccant system, this study aims to develop a deeper understanding in the dehumidification performance of some liquid desiccants. Then, an experiment test was conducted to determine the CaCl2-LiCl mixed liquid-desiccant system in a dehumidification system. The effects of the pure and mixture liquid desiccant solution on the moisture removal rate, refrigerating capacity and dehumidification performance were compared and analysed. Results show that with the increase in the LiCl concentration, the dehumidification capacity and dehumidification coefficient first increased rapidly and then increased slowly after 30% LiCl concentration. According to the economic analysis of mixed salt solution, the mixed LiCl and CaCl2 solution with a mixing ratio of 3:1 would achieve the best optimal dehumidification efficiency and would incur a low system cost under the working conditions of a dry-bulb temperature at 26°C and a relative humidity of 60% of fresh and return air.

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“…Therefore, new air dehumidification technology, i.e. solar-assisted liquid desiccant dehumidification, is regarded as a promising alternative due to less energy consumption and lower pollution [6,7]. In liquid desiccant air dehumidification system, humid air interacts with desiccant solution and the water vapor is absorbed by liquid desiccant due to pressure difference between humid air and saturated air above liquid desiccant [8].…”

Section: Introductionmentioning

confidence: 99%