Experimental and CFD Analysis of Artificial Dimples Surface Roughness by Using Application of Domestic Solar Water Heater

Solar energy is widely perceived as one of the most motivating sources of elective energy and an eco-friendly sustainable power source. The least demanding and most effective technique is the conversion of solar energy into heat energy. From the past, we can understand that in the case of solar thermal conversion, the solar-controlled electrical transformation system has a profitability of 17%. Keeping this fact in mind, we have ended up in the following research. In this research, experimental and numerical comparisons are to be done for heat enhancement devices (parallel normal plain tube versus tubes with outer dimples with water) to enhance the heat transfer rate. Introducing heat enhancement devices will create turbulence and enhance the heat transfer rate. A comparison of the two models is carried in terms of flow and heat transfer by using computational fluid dynamics (CFD) and experimental analysis. This will enable us to design a setup where we attempt to increase the efficiency from 70 to 80%.