• RAJAPU JAIRAM
• K.Hemachandra Reddy
• P.Narasimha Siva Teja
• K.Subbareddy

In this paper, an efficient solar water heater in the form of a Pyramid shaped Frustum was Fabricated and Tested. The compact system was fabricated in which the collectors and a hot water storage tank are integrated together as a single unit. The concept of using Pyramid shaped Frustum is to collect Solar Radiation by the external surface of the model and hallow internal body is used as a Hot Water Storage Tank. This model have five surfaces in which four surfaces acts as liquid Flat Collectors i.e., Roof and three sides which receives all the solar radiation incident on them. The Roof and one of the sides are facing the South direction and the other sides are facing the South-East and South-West directions, respectively. The three sides are tilted at an angle of 30º to the Horizontal plane while the Roof tilted at an angle of 15º. The total surface area of the collectors is about of 0.88 m2 and the capacity of water storage tank is about 100 liters. The Copper Tubes are arranged in a Serpentine shape on the absorber to circulate the water to get heated. The Copper Tubes are connected to the Storage tank by two openings (Inlet and Outlet). A small submersible pump is used to circulate water through the copper pipes. The thermal analysis of the liquid flat plate collector and the performance of solar water heater is derived based on the steady state analysis. A comparison between the compact unit and conventional type which is available in market is done. The results of this efficient solar water heater is providing a quantity of Hot water of about 200 litres per day at an average temperature range from 40º - 65ºC depending on the Weather conditions and Solar intensity. The compact solar heater operates at high efficiency, due to analysed data the average rise in temperature is 350 C and the maximum temperature reached was 70 0C. Ffrom the analysis this compact solar water have low cost this includes the cost of materials and fabrication in general.

Solar water heater, Flat plate collector, compact, hot water systems, forced circulation.

"FABRICATION AND PERFORMANCE TESTING OF COMPACT AND EFFICIENT SOLAR WATER HEATER", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.108-117, June-2019, Available :http://www.jetir.org/papers/JETIR1906L14.pdf

"FABRICATION AND PERFORMANCE TESTING OF COMPACT AND EFFICIENT SOLAR WATER HEATER", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp108-117, June-2019, Available at : http://www.jetir.org/papers/JETIR1906L14.pdf