IGNOU MRW 5 2026 - Describe the functioning of a solar dryer. Explain dehydration of Onio

Question

Describe the functioning of a solar dryer. Explain dehydration of Onion.

06 Mar 2026

Answer :

Word Count : 285

Solar dryer is a device that uses solar energy to dry agricultural and food products by converting solar radiation into heat energy. The functioning of a solar dryer is based on the greenhouse effect, where sunlight enters through a transparent cover such as glass or plastic sheets. The trapped solar radiation increases the internal temperature, which helps in evaporating moisture from the materials placed inside. Solar dryers generally

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