REVIEW ARTICLE
. Mechanical Engineering, University Institute of Engineering & Technology; Maharshi Dayanand University, Rohtak, Haryana 124001, India.. Mechanical Engineering, Guru Jambheshwar University of Sciences and Technology, Rohtak, Haryana 124001, India
录用日期：
2017-04-07
发布日期：
2017-04-07
摘要
Greenhouse technology is a practical option for the production and drying of agricultural products in controlled environment. For the successful design of a greenhouse, the selection of a suitable shape and orientation is of great importance. Of various shapes of greenhouses, the even-span roof and the Quonset shape greenhouses are the most commonly used for crop cultivation and drying. The orientation of greenhouses is kept east–west for maximum utilization of solar radiations. Hybrid and modified greenhouse dryers have been proposed for drying of products. The agricultural products dried in greenhouses are found to be better in quality as compared to open sun drying because they are protected from dust, rain, insects, birds and animals. Moreover, various greenhouses shapes along with their applications have been reviewed.
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