Experimental analysis of solar concrete collector for residential buildings

摘要

The performance of the solar water heater varies with respect to incident solar radiation, geographical location, and components of the solar water heater such as glazing, absorber material and storage tank. In this work, building-integrated solar water heating system (BISWHS) is fabricated and its output is evaluated by installing it on the roof and facade of the building for azimuth angles 180 degrees, -90 degrees, and 90 degrees. The experimentation is carried out at the Kovilpatti region (9o 11MODIFIER LETTER PRIMEN, 77o 52MODIFIER LETTER PRIMEE), Tamilnadu, India where the climatic conditions are hot and humid. The experiment is carried out at different mass flow rates of 0.004, 0.00625, and 0.00827 kg/s. The result revealed that the mass flow rate of 0.004 kg/s obtained the maximum temperature of 68 degrees C on the flat roof, while the mass flow rate of 0.00625 and 0.00827 kg/s reached 50 degrees C and 47 degrees C between 14.00 hours. In the same way, the experimentation is carried out at the facade at different azimuth angles. Various parameters are analyzed, such as outlet water temperature, ambient temperature, incident solar radiation, thermal efficiency, and exergy efficiency. The mass flow rate of 0.00827 kg/s has yielded the highest efficiency on the facade and roof of the building.