Design, development and testing of Universiti Malaysia Sabah (UMS) eco-solar dryer

B C Lim and A M Wash and S S Arifin and N S Kassim and A S T Tan and A Abdullah and W A A Zal and Janaun Jidon (2021) Design, development and testing of Universiti Malaysia Sabah (UMS) eco-solar dryer.

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Abstract

Utilization of solar drying for food preservation would be a step towards sustainable food processing. Even today, most of the agricultural and marine products are dried under open sun-drying. However, this method is associated with several drawbacks, which then leads to the use of solar dryer. Universiti Malaysia Sabah (UMS) has developed a solar drying system with loading capacity of 50kg to enhance the drying process of various food products. Design parameters particularly focused in this project includes the air movement pattern in drying chamber, heating system employed, air circulation ventilation and the airflow configuration in solar heat collector. Results revealed that solar dried products attained desired moisture content in shorter drying time. Temperature profile in updraft and downdraft drying mode indicated that no temperature fluctuation occurred when switching in between. Maximum temperature achieved under complete solar mode were 65°C and 83°C for single-pass and multi-pass solar heat collector, respectively. Under solar-hybrid mode, higher temperature was attained under intermittent ventilation mode. It can be concluded that UMS Eco-Solar Dryer is an environmentally and economically efficient drying system for the food processing industry.

Item Type: Proceedings
Uncontrolled Keywords: Downdraft , Updraft , Hybrid solar dryer , Solar heat collector , Efficiency
Subjects: L Education > LG Individual institutions - Asia, Africa, Indian Ocean islands, Australia, New Zealand, Pacific islands > LG21-961 Individual institutions > LG21-395 Asia > LG173 Malaysia
T Technology > TJ Mechanical engineering and machinery > TJ1-1570 Mechanical engineering and machinery > TJ1480-1496 Agricultural machinery. Farm machinery
Divisions: FACULTY > Faculty of Engineering
Depositing User: DG MASNIAH AHMAD -
Date Deposited: 24 Nov 2021 06:56
Last Modified: 24 Nov 2021 06:56
URI: http://eprints.ums.edu.my/id/eprint/31168

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