Thermal aspects of open sun drying of various crops

Jain, Dilip; Tiwari, G.N.

doi:10.1016/s0360-5442(02)00084-1

Cited by 110 publications

(47 citation statements)

References 11 publications

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“…A temperature rise of 15-20°C of air from ambient is sufficient to meet the requirement of crop drying (Dubey & Pryor, 1996). Natural sun drying is practiced widely in the tropical and subtropical countries (Jain & Tiwari, 2003;Szulmayer, 1971). It is a most crude and inefficient way of crop drying using solar energy.…”

Section: Introductionmentioning

confidence: 99%

Modeling the system performance of multi-tray crop drying using an inclined multi-pass solar air heater with in-built thermal storage

Jain

2005

Journal of Food Engineering

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Section: Introductionmentioning

confidence: 99%

Modeling the system performance of multi-tray crop drying using an inclined multi-pass solar air heater with in-built thermal storage

Jain

2005

Journal of Food Engineering

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“…Sun drying is still common practice in many tropical and subtropical countries (Jain & Tiwari, 2003;Szulmayer, 1971). The problems associated with the natural sun drying are; over drying, insufficient drying, discoloration by the UV radiation and contamination by the foreign materials, insects and microorganisms (Esper & M€ uhlbauer, 1998).…”

Section: Introductionmentioning

confidence: 99%

Performance evaluation of an inclined multi-pass solar air heater with in-built thermal storage on deep-bed drying application

Jain

2004

Journal of Food Engineering

109

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“…The drying time required for a given commodity can be quite long and result in post-harvest losses(more than 30%) . Solar drying of agricultural products in enclosed structures by forced convection is an attractive way of reducing post-harvest losses and low quality of dried products associated with traditional open sun-drying methods [10]. In many rural locations in most developing countries, grid-connected electricity and supplies of other non-renewable sources of energy are either unavailable, unreliable or, too expensive.…”

Section: Solar Drying Technologymentioning

confidence: 99%

On Solar Energy Utilization for Drying Technology

Yoo¹,

Kim²,

Woo³

et al. 2017

IJESD

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Abstract-Solar drying is one of the oldest drying techniques in which solar radiation is used. Drying is an essential process in the preservation of agricultural crops and in industries, such as textile production, dairy processing, cement production, clay brick production, tile production, wood and timber processing, wastewater treatment and biomass treatment. Solar drying is another very important application of solar energy. Solar dryers use air collectors to collect solar energy. Solar dryers are used primarily by the agricultural industry. The purpose of drying an agricultural product is to reduce its moisture content to a level that prevents its deterioration. In drying, two processes take place; One is a heat transfer to the product using energy from the heating source, and the other is a mass transfer of moisture from the interior of the product to its surface and from the surface to the surrounding air. In short, we conduct a comprehensive review of summarize the research and development work for solar drying. It is hoped that this review work maybe valuable and appropriate for further development work.Index Terms-Solar drying, solar energy, solar thermolysis. I. INTRODUCTIONSolar drying is one of the oldest drying techniques in which solar radiation is used, i.e. drying under direct sunlight to preserve food or non-food products since ancient times. Solar drying does not require man produced energy, uses renewable energy and applicable in any part of the world. Nevertheless, in order to increase the efficiency of material drying using solar radiation, proper innovation or application is needed. Owing to costly, limited, and non-environmentally friendly fossil fuels, solar drying is becoming a popular option to replace the mechanical thermal dryers [1].The main aim of this paper is to summarize the research and development work for solar drying. It is hoped that this review work maybe valuable and appropriate for greenhouse Manuscript received August 29, 2016; revised November 4, 2016 kr).Chan Jin Park is with the Department of Energy and Env. Engineering and the Department of Climate International Cooperation, Incheon National University, Republic of Korea (e-mail: cjpark@inu.ac.kr). gas reduction technology. II. HISTORY OF SOLAR ENERGYProbably the oldest large-scale application known to us is the burning of the Roman fleet in the bay of Syracuse by Archimedes, the Greek mathematician and philosopher (287-212 B.C.). Scientists discussed this event for centuries. From 100 B.C. TO 1100 A.D., authors made reference to this event, although later it was criticized as a myth because no technology existed at that time to manufacture mirrors [2]. The basic question was whether or not Archimedes knew enough about the science of optics to devise a simple way to concentrate sunlight to a point at which ships could be burned from a distance. Nevertheless, Archimedes had written a book, On Burning Mirrors [3], which is known only from references, since no copy survived.During the 18th century, solar furnaces capab...

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Thermal aspects of open sun drying of various crops

Cited by 110 publications

References 11 publications

Modeling the system performance of multi-tray crop drying using an inclined multi-pass solar air heater with in-built thermal storage

Modeling the system performance of multi-tray crop drying using an inclined multi-pass solar air heater with in-built thermal storage

Performance evaluation of an inclined multi-pass solar air heater with in-built thermal storage on deep-bed drying application

On Solar Energy Utilization for Drying Technology

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