Abstract
Despite the high efficiency and eco-friendly of Household Fuel Cell System it has hardly obtained popularity mainly due to its high prices. In order to encourage use of the system prices and operational expenses need to become economical. In this study, optimization through simulation was conducted to find out the optimal operational condition. As a result of simulation the system is operated with DSS operation from 5 O'clock to 19 O'clock for 14 hours at the constant output of 0.4kW to maximize reduction of energy rate. this DSS operation condition can reduce 200,000 won of energy rates in 35 pyoung apartment for a year. And, we can know that starting time of DSS operation don't effect to energy rates through the simulation. Furthermore, the household fuel cell system with the rated output of 1kW should be reduced to 0.4 - 0.6kW which can promote installation of household Fuel Cell System. Now, the household fuel cell system don't have been used widely due to economical efficiency. but, in the near future, Fuel Cell will be used to household by decrease of LNG price caused by development of shale gas.
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