抄録
There are combined cooling, heat and power supply systems (CCHP) as a method of efficient use of energy. In this research, we focus on gas engines among equipments. Gas engines for power generation have two types as high speed type and middle speed type, and maintenance is the most important factor among those characteristics. The purpose of this research is to investigate the type composition at the time of installing a plurality of gas engines and the maintenance of each type, and to evaluate the technical selection by comparing various combinations from the economic point of view. Temporary demand for this time is just 1 year, and 3 units of 4000 kW class gas engine are installed. The configuration of gas engine is mixed with high and middle speed types. As a result of optimization, engine’s operation hour was controlled as unbalanced even with the same types, and there was the case that controlled to limit the operation so as not to have latter stage of maintenance. As the result, a combination of the two types was recognized better than the systems with one type.
