Exploitation of Electrical Generator Waste Energy for House Heating and Hot Water Supply

Energy demand is increasing worldwide, Iraqi people severe of power shortages from long years ago. Refrigeration and heating of homes consume the bulk of energy. In this study, a proposed system leads to use small electrical power generators for generating electricity and use the exhaust gas thermal energy for heating hot water that can be supplied for Iraqi houses. This system will satisfy more than 90% of the fuel used for heating water in winter. In fact this system is applied in many modern countries from long time ago, but for huge units not applied for small units. Small electrical generators have maximum thermodynamic efficiency about 27%, and there is about 73% of the fuel energy go to ambient as waist energy. The aim of this research is to verify the ability of thermal energy utilization of 5kw benzene electrical generator for the purposes of heating and hot water supply in winter to an Iraqi house.