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    • ISSN: 2010-0264
    • Frequency: Bimonthly (2010-2014); Monthly (Since 2015)
    • DOI: 10.18178/IJESD
    • Editor-in-Chief: Prof. Richard Haynes
    • Executive Editor: Ms. Nancy Y. Liu
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Editor-in-chief
The University of Queensland, Australia
It is my honor to be the editor-in-chief of IJESD. The journal publishes good papers in the field of environmental science and development.
IJESD 2013 Vol.4(6): 658-661 ISSN: 2010-0264
DOI: 10.7763/IJESD.2013.V4.433

Drying of Limes in Oman Using Solar Tunnel Dryers

M. A. Basunia, H. H. Al-Handali, and M. I. Al-Balushi
Abstract—A solar tunnel dryer having 16 meter long and 2 meter width was designed and constructed to dry about 300 kg of freshly harvested limes per batch. The nearly one-third area of the tunnel base was used as the solar collector and the remaining two-third area as a dryer. The drying temperature could be easily raised by some 5-300C above the ambient temperature inside the tunnel at an air velocity of approximately 0.15 (ms-1). The test was conducted with about 300 kg freshly harvested limes with initial moisture content of 86.0% (wet-basis) to analyze the performance of the dryer. The limes were dried to a final average moisture content of 10.0% (wet-basis) within 7 days (70 hours). The results indicated that the drying was faster in solar tunnel dryer ( 7 days) than the natural open air sun drying (> 3o days). The improvement in the quality of limes in terms of color, brightness and flavor was distinctly recognized.

Index Terms—Moisture content, tunnel dryers, limes.

The authors are with the Department of Soils, Water and Agricultural Engineering, Sultan Qaboos University, Oman (e-mail: basunia@squ.edu.om; hhandali@squ.edu.om; moha99@squ.edu.om ).

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Cite:M. A. Basunia, H. H. Al-Handali, and M. I. Al-Balushi, "Drying of Limes in Oman Using Solar Tunnel Dryers," International Journal of Environmental Science and Development vol. 4, no. 6, pp. 658-661, 2013.

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