International Journal of Engineering and Technology

The largest quantity of fossil fuel is used for power generating process nowadays, which release enormous of carbon dioxide and other defilement to the environment. More significantly, fossil fuel will disappear from our planet in the near future. In order to save our environment together with develop our civilization sustainably and less harm to living things, human are exploring new source of substitute clean energyand solar energy is renewable which can serve as a sustainable energy source. Moreover, it will significantly become a crucial part of the future energy structure. Because of the advantages of flat radial Fresnel lens such as small volume, light-weight, mass production with low cost, it recently have been one of the best choices in the field of concentrated solar energy applications.This research aims to design and build the flat radial Fresnel lens collector with solar tracking system using in high temperature solar energy thermal system. The 6 pieces of 40×40 cm2 with 230 mm focus length of Fresnel lens are used for the sunlight concentration to the focal point. The temperature at the focal points are measured by the data logger and Programmable Logic Controller (PLC) is used for controlling stepping motors in the sun tracking system. The result of the experiments which collected between 10.00 A.M. – 04.00 P.M., the beginning average temperature which measured at 10.00 A.M.is 375.57 °C and the average maximum temperature is 499.36 °C at 1.00 P.M. and the average solar radiation value is 706.37 W/m2 during 6 hrs. Operating time at the average atmospheric temperature of 29.77 °C. The performance of solar concentrator which depend on many factors such as reflection of sun beam, solar intensity, controller and mechanism especially the tracking accuracy of sun moving path.