7. Related Research
7.1 Hot water with solar simple for Thailand. Of Assoc. Prof. Dr. Jong mental. Hiran luck, your joy Chan Wong & Assoc. Dr. Joseph K. Donner, the study found that the use of materials made of plastic (the pipes PVC) pipe sold in the market in order to save costs. And reducing the trade deficit with other countries. To import electricity and gas water heater. The application creates a simple solar water heater for Thailand (Low Cost - Solar Water Heater for Thailand: LC-SWHT) for use in general households. Anyone can create yourself. Temperature hot enough Affordable It also helps save electricity or gas, with the basic principle is the leading plastic pipe (PVC) served piping hot and Solar Direct. Painted opaque in order to have a higher absorption. By combining solar panels directly. Painted opaque in order to have a higher absorption. By combining the panels, sun shades and tank heat build them into one set. The construction of about 4,500 baht and a lifespan of about three years,
7.2 for experimental studies, water heater, solar light. Your Watcharin Bangalore University. The study found that the use of a parabolic dish combined light. A parabolic solar dish made of shiny stainless steel, which provides the reflecting light better and more affordable. The tube light cylinder made of steel painted black, diameter 20 cm, using water to 70 liters and with the rotating plate radiation every 1 hour, 15 degrees to the radiation incident perpendicular to a parabolic dish very much. the best Test rooftop Department of Mechanical Engineering. University of the East at the time 8:00 to 16:00 pm. Only a sunny day. The test result showed that Water heater, solar energy using parabolic dish is light. You can make hot water temperatures of up to 64 c of water 30 liters and 57 c of water 70 liters at 15.00. The time to heat the entire seven hours, also found water heater efficiency 28.4. % and 26.7% respectively
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