GREENHOUSE GAS EMISSION ASSESSMENTS OF A MICRO-COMBINED COOLING, HEATING AND POWER SYSTEM FOR DOMESTIC RESIDENCE

In this work, the greenhouse gas emission of a Stirling engine based micro-combined cooling, heating and power (mCCHP) system is studied. The mCCHP system consists of a biomass Stirling CHP, an adsorber chiller, a hot water storage tank and a cold water storage tank, photovoltaic panels, evacuated tube solar collectors and a wood pellets boiler. The mCCHP system supplies remote residential homes with power, heating and cooling using two kinds of energy (primary biomass and assisted solar energy). The operation of mCCHP depends on the seasonal atmospheric conditions, which determine the building electric, thermal and cooling demand. In order to reduce the fuel consumption and therefore the greenhouse gases (GHG) emission, solar photovoltaic panels and evacuated tube solar collector are used. When the thermal output of the Stirling CHP and solar collector is not sufficient to cover the demand, a heating boiler will operate. An electricity accumulator, a hot water storage tank and a cold water storage tank are used in order to balance the hourly fluctuations of energy demand smoothing consequently the peaks. The prime mover and the cooling subsystem were selected after an energy and economic analysis. This study deals with the greenhouse gas emission assessment.