Abstract
Recently, the introduction of the co-generation system using gas turbine, diesel engine, gas engine is popular in factories, large-scale office building, general hospital, and so on. Furthermore, the examination of the residential co-generation system is carried out in search of electric power decentralization, energy saving, environment and economical efficiency. In Japan, it views fuel cell and small gas engine as thermoelectric conversion equipment of this system with hope, and the examination of the small Stirling engine has just begun. The merit of the Stirling engine introduction is big, when cold region with much heat demand, diversity of the fuel, operating cost, and the vibration and noise reduction are taken into consideration. In this paper, energy user study results of ordinary homes around Sapporo City are described. The possibility of the introduction of the residential co-generation system using Stirling engine is examined. In energy user study of ordinary homes, energy equipment used, energy source and situation of energy utilization are examined. Based on the survey, the residential co-generation system using Stirling engine for cold area is proposed. The possibility of Stirling engine introduction increases as a result of the evaluation of the initial and running cost.