• Sunlit Solar Energy Private Limited

Solar Hot Water System

Sunlit Solar Energy is one among India's largest manufacturers of solar generators, solar water heater, solar street and domestic lighting systems, catering to a wide segment of the Indian and Asian market. Solar hot water system is based on the principle of black body absorption. The black surface of the collector absorbs the heat energy from the sunrays and transfers it to the water passing through the copper tubes. Hot water being lighter rises to the insulated storage tank and an equal amount of cold water replaces this hot water from the copper tubes. Temperature from solar water heater can be increased to the maximum of 95?C. Industries like textile, hotel, rubber and dairy industries are already using solar heaters in boilers for generating steam. The hot water can be used as a pre heated water for the boiler. Conventional fuels like LPG, diesel, firewood, etc., can be saved at 30% to 40 % on their daily consumption. Technical data, solar collectors: absorber ? copper black chrome selective coating; fin type ? deep serrated fin to have increased surface area 10-15%; copper quality ? 9 9.99% 0.02 pure; collector area ? 2.2 sq mtr; header/riser tube ? copper 25/12.5 mm dia; riser to fin joining ? ultrasonic welding; collector frames ? aluminium powder coated; top cover glazing ? toughened glass 4 mm thick; glass beading/gasket ? pure EPDM rubber; insulation ? rock wool slabs 100 kg/m3 density. Insulated storage tank: inner tank material ? 304 grade stainless steel; outer tank material ? aluminium cladding; tank capacity ? as per customers need; inlet/outlet pipe ? SS 304; tank welding ? TIG welding; filling material ? SS 316 grade filler rod; thermal insulation ? 100 kg/m3 rock wool slabs; and heat retention ? 72 hrs.