期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2014
期号：ICIET
页码：2655
出版社：S&S Publications
摘要：An indirect type forced convection solardryer is fabricate with the components like evacuated tubecollector, drying chamber and blower. The performance ofthe designed drier is evaluated by carrying dryingexperiments with copra at Coimbatore district Tamilnadu,India. A short survey of these showed that applying theforced convection solar dryer not only significantlyreduced the drying time but also resulted in manyimprovements in the quality of the dried products. Solardrying of copra is carried for forced convection and iscompared with natural convection solar drying. Thetemperature of the drying chamber ranges from 49ºC to78ºC for natural and forced convection while the ambienttemperature ranges from 28ºC to 32ºC. Initial moisturecontent of copra ranges from 51.7% to 52.3% and the finalmoisture content obtained about 7 to 8%. The forcedconvection solar dryer takes less time than the naturalconvection solar dryer to attain the equilibrium moisturecontent. Solar drying copra obtained was free from smoke,dust, bird and rodent damage.
