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Performance evaluation of a solar‐powered flat‐plate multichannel liquid desiccant air conditioning system
Author(s) -
Sharma Akash,
Kaushal Rajneesh
Publication year - 2021
Publication title -
heat transfer
Language(s) - English
Resource type - Journals
eISSN - 2688-4542
pISSN - 2688-4534
DOI - 10.1002/htj.22066
Subject(s) - desiccant , liquid desiccant , evaporative cooler , air conditioning , process engineering , conditioning , environmental science , materials science , nuclear engineering , mechanical engineering , engineering , composite material , mathematics , statistics
There has been a limited application of liquid desiccant (LD) dehumidification systems in space air conditioning until now. The key elements responsible for this restricted implementation are leakage of desiccant solution, corrosion of components, and solution carryover along with the processed air to the space to be conditioned. To remove these problems, an evacuated tube solar heat collector‐driven multichannel liquid desiccant air conditioning system has been proposed and experimentally investigated. In this study, dehumidification and regeneration rate, their effectiveness, cooling effect of the dehumidifier, and indirect evaporative cooling unit have been analyzed. The results obtained indicate that the process air has been dehumidified and cooled by 6.32 g kg −1 and 5.26°C, respectively. The regeneration rate and effectiveness have been obtained to be 0.26 g s −1 and 0.31, respectively. In terms of the cooling effect, the system output of 0.703 and 0.130 kW has been obtained from the dehumidifier and indirect evaporative cooling unit of the system, respectively. The proposed system validates the possibility of the novel solar‐powered liquid desiccant air conditioning system concept and provides growth and development of the LD air conditioning technology for space air conditioning.