Performance of a heat pump drier for copra drying.

Authors :: Mohanraj, M.
Chandrasekar, P.
Sreenarayanan, V. V.
Source :: Proceedings of the Institution of Mechanical Engineers -- Part A -- Power & Energy (Professional Engineering Publishing); May2008, Vol. 222 Issue 3, p283-287, 5p, 1 Color Photograph, 2 Charts, 5 Graphs
Publication Year :: 2008
Abstract: A heat pump drier is designed and fabricated to investigate its performance for copra drying. The experiments are carried out at 40 °C drying air temperature with a velocity of 1.5 m/s. The results showed that moisture content (wet basis) of the coconut is reduced from 52.6 to 8.5 per cent in 48 h. The average coefficient of performance of the heat pump is estimated to be about 3.5. The specific moisture extraction rate is calculated to be about 0.85 kg/kW-h. The copra obtained is graded as 92.7 per cent milling copra grade 1 (MCG1) and 7.3 per cent MCG2 according to Bureau of Indian standards (BIS: 6220–1971). [ABSTRACT FROM AUTHOR]

Subjects :: HEAT pumps
COPRA
COCONUT products
SPEED
SURFACE chemistry
SURFACE tension

Language :: English
ISSN :: 09576509
Volume :: 222
Issue :: 3
Database :: Complementary Index
Journal :: Proceedings of the Institution of Mechanical Engineers -- Part A -- Power & Energy (Professional Engineering Publishing)
Publication Type :: Academic Journal
Accession number :: 32491363
Full Text :: https://doi.org/10.1243/09576509JPE548