04-11-2014, 09:43 AM
Abstracts: Flat plate collectors and evacuated tube collectors are being used for domestic water heating purposes. But solar energy can be used in industries to generate low pressure steam by concentrating more solar energy on a smaller area. This can be done by using lenses to concentrate the sun rays. We find that even in domestic water heating systems in a hot region like Gujarat, we sometimes get steam in low quantities without any concentration and without tracking of the collector. So, consistent generation of steam in industries by using Fresnel lens collector as concentrator and by tracking is possible. Hence, this project covers the design and manufacture of Fresnel lens.