| Title |
Optimal Design of Cogeneration System for General Facilities Considering LCC Analysis |
| Authors |
강율호(Yulho Kang) ; 구본철(Boncheol Ku) ; 황유진(Yujin Hwang) ; 송재도(Jaedo Song) ; 정성일(Seongir Cheong) ; 이재근(Jaekeun Lee) |
| Keywords |
소형열병합발전 ; 최적 설계 ; 이산화탄소 배출 ; 생애 주기 비용 Cogeneration system ; Optimal design ; Carbon dioxide emission ; Life cycle cost |
| Abstract |
Cogeneration system produces power as well as heat recovered from waste heat during power generation process. This system has higher energy efficiency than that of the power plant. In this study the optimal design for the cogeneration system with the increase of the capacity considering life cycle cost(LCC) analysis has been performed in the general facilities such as hotels and hospitals under the assumption of electricity cost of 95won/kWh, the initial cost of cogeneration system of 1,500,000won/kW and the value of 0.5～1.0 in the ratio of heat to power. The optimal ratio of cogeneration capacity divided by average electricity load of facility was found out more than 0.5 in case of electricity cost with the increase of>30%, and the percentage of CO2 reduction was about 9%. The most important factors in the economic analysis of cogeneration system was found out the electrity cost and the initial cost of cogeneration system. Also the ratio of heat to power at the value of>0.5 was not affected in the economy of cogeneration system, but was very important in the CO2 reduction. |