On the development of solar drying system

Chai, Adrian Ngu Ming and Ibrahim, M. and Chuan, Cheah Bin and Yousif, B. F. (2010) On the development of solar drying system. In: ASME International Mechanical Engineering Congress and Exposition (IMECE 2009), 13-19 Nov 2009, Florida, United States.

Abstract

In the present work, solar thermal drying system was developed. The main purpose of solar thermal drying system is to dry local vegetables and fruits. The drying system contained of two main parts as heat collector and the food drying cabinet. It is a force convection indirect type absorbing maximum solar radiation by the heat collector and provides heated air flow to the cabinet via two fans at the air inlet/outlet. The heat collector was inclined at 23.5 angle which suitable to the location for absorption of maximum solar radiation. Experiments were performed to test the efficiency of the solar heat collector and the cabinet at different daily times and operating conditions. The results revealed that 98.8C temperature was achieved under static air condition. The air temperature at the inlet of the cabinet under both natural and forced air velocities was about 62.8C. During the experiments, the cabinet was loaded with 426g of banana slices having an initial moisture content of 80%. The designed drying system managed to achieve a final desired moisture content of 15% within effective period of 7 hours without losing the product color.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2009 by ASME. Permanent restricted access to paper due to publisher copyright restrictions.
Depositing User: Dr Belal Yousif
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering
Date Deposited: 18 Oct 2010 02:18
Last Modified: 11 Nov 2013 05:52
Uncontrolled Keywords: solar thermal drying system; drying; vegetables; fruit
Fields of Research (FOR2008): 07 Agricultural and Veterinary Sciences > 0706 Horticultural Production > 070605 Post Harvest Horticultural Technologies (incl. Transportation and Storage)
09 Engineering > 0908 Food Sciences > 090805 Food Processing
09 Engineering > 0906 Electrical and Electronic Engineering > 090605 Photodetectors, Optical Sensors and Solar Cells
Socio-Economic Objective (SEO2008): E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: 10.1115/IMECE2009-12294
URI: http://eprints.usq.edu.au/id/eprint/8715

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