|
NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR) >
NISCAIR PUBLICATIONS >
Research Journals >
Journal of Scientific and Industrial Research (JSIR) >
JSIR Vol.67 [2008] >
JSIR Vol.67(05) [May 2008] >
| Title: | Comparison of drying characteristics and quality of copra obtained in a forced convection solar drier and sun drying |
| Authors: | Mohanraj, M
Chandrasekar, P |
| Keywords: | Copra
Heat storage materials
Solar drier
Sun drying |
| Issue Date: | May-2008 |
| Publisher: | CSIR |
| Abstract: | An indirect forced convection solar drier integrated with sensible heat storage material has been fabricated and
tested for copra drying. It reduces moisture content (wet basis) from 52% to 7.8% and 9.5% in 66 h for trays at bottom and top
respectively. System pickup efficiency varies between 45% and 13%. Copra obtained was graded as 76% milling copra grade1
(MCG1), 18% MCG2 and 6% MCG3. Specific moisture extraction rate was estimated to be 0.84 kg/kWh. In sun drying,
moisture content reduced from 52.3% (wet basis) to about 9.2% in 7 days. Copra obtained was graded as 53% MCG1, 24%
MCG2 and 23% MCG3. Average drier thermal efficiency of sun drying was estimated to be about 21%. |
| Page(s): | 381-385 |
| ISSN: | 0022-4456 |
| Source: | JSIR Vol.67(05) [May 2008]
|
|
