Improvement of Solar Collector made by Fresnel Lens for a Stirling Engine Power Generator

Abstract

Aiming at reduction of the energy consumed in domestic use, research of an energy system corresponding to ZEH (Zero Energy House) is advanced. The authors are developing a hybrid heat source Stirling engine CHP (combined heat and power) system, which uses solar and woody biomass for a heat source. This paper describes improvement of characteristics on a solar tracking type collector made by a Fresnel lens, which have individual surfaces machined in the focus side or the receiving sunlight side, besides different shape of surface receiving sunlight. The test results are beneficial to design of the solar collector and presented a practical solar collector.