Experimental studies on the performance of dehumidifier using calcium chloride as a liquid desiccant. (2018)

• Record Type: Journal Article
• Authors: Seenivasan, D.; Selladurai, V.; Arjunan, T.V.
• Is Part Of: International journal of energy technology and policy. Volume 14:Number 1(2018)
• Page Start: 49
• Page End: 63
• Publication Date: 2018
• Subjects: liquid desiccant -- dehumidifier -- moisture condensation rate -- MCR -- dehumidifier effectiveness -- indirect evaporative cooler -- IEDC; Power resources -- Technological innovations -- Periodicals; Energy policy -- Periodicals; 621.042
• Languages: English
• ISSNs: 1472-8923

Abstract

The performance of liquid desiccant air conditioning system (LDAS) mainly depends on dehumidifier of the system. In this study, the effects of inlet parameters on the performance of liquid desiccant dehumidifiers were studied with and without indirect evaporative cooler or intercooler (IDEC) between the dehumidifier for single stage and double stage. The results show that: i) the dehumidification effectiveness decreases by 8.6% for the all types considered here, with increase in air flow rate from 0.05 kg/s to 0.11 kg/s; ii) the dehumidifier effectiveness decreases due to decrease of moisture removal rate with increasing desiccant temperature in all stages; iii) the moisture condensation rate and dehumidifier effectiveness increases by 30% and 22.67% respectively with increase in desiccant flow rate; iv) the moisture condensation rate is increased by 13% in increasing desiccant concentration. It is concluded that double stage desiccant dehumidifier with indirect evaporative cooler performs better.