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 consist of a __________ _______ ______ ___ _______ _____ _______ _____.
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