Abstract
Because not only electricity consumption per unit area but also hot water supply demand is large in the small-scale stores such as a restaurant, a fast food and a convenience store, it is very effective in saving energy and environmental preservation to introduce a power generation and heat supply system. In this paper, present conditions of energy consumption and electricity/heat demand in these small-scale stores are investigated, and the new system using a Stirling engine is suggested, which can supply electricity, hot water and air-conditioning output. The system consists of a Stirling engine generator, a combustor, an exhaust gas heat exchanger or air pre-heater, and a low temeperature regenerative desiccant air-conditioner. It is expected an efficiency of 80% or more at cooling and 90% or more at heating.
