Record Details

Energy efficient liquid desiccant-based dryer

DSpace at IIT Bombay

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Title Energy efficient liquid desiccant-based dryer
 
Creator RANE, MV
REDDY, SVK
EASOW, RR
 
Subject mass-transfer
air-conditioner
performance
heat
dehumidifier
liquid desiccant
contacting device
two stage regenerator
liquid desiccant dryer
 
Description A liquid desiccant-based dryer is developed that has higher energy efficiency compared to conventional hot air based drying systems used in industrial and agricultural sectors. Two-stage regeneration of the liquid desiccant, an aqueous solution of calcium chloride, is used to improve the energy efficiency. It is demonstrated that the liquid desiccant-based dryer is techno-economically superior. Contacting device is an important component in the absorber and regenerator of a liquid desiccant system. Carryover of liquid desiccant into the process and/or regenerated air streams is eliminated with the novel contacting device, which has 120-185% greater surface density compared to conventional packing. The air side pressure drop through the contacting device is very low. This paper presents the experimental results of a liquid desiccant-based dryer, designed for a paper tray drying application. It also includes the effect of variation of operating parameters and that of solution heat exchanger on specific moisture extraction rate (SMER). The average SMER of the liquid desiccant-based dryer is experimentally found to be 1.5 kg/kW h of heat. Energy savings and resultant reduction in CO2 emissions is about 56% compared to conventional hot air-based dryer. Benefits will be more while drying temperature sensitive herbal, agricultural and pharmaceutical products. (C) 2004
 
Publisher PERGAMON-ELSEVIER SCIENCE LTD
 
Date 2011-08-24T06:45:38Z
2011-12-26T12:56:47Z
2011-12-27T05:46:00Z
2011-08-24T06:45:38Z
2011-12-26T12:56:47Z
2011-12-27T05:46:00Z
2005
 
Type Article
 
Identifier APPLIED THERMAL ENGINEERING, 25(5-6), 769-781
1359-4311
http://dx.doi.org/10.1016/j.applthermaleng.2004.07.015
http://dspace.library.iitb.ac.in/xmlui/handle/10054/10793
http://hdl.handle.net/10054/10793
 
Language en