Economic and Environmental Modeling of a MGT-SOFC Hybrid Combined Heat and Power System for Ship Applications

In this article, economic and environmental analysis of a combined heat and power system (CHP) system using solid oxide fuel cell (SOFC) - micro gas turbine (MGT) is investigated. Comprehensive electrochemical, thermal and exergetic calculations in the system are performed in order to get hold of accurate that is validated using available data in literature. A parameter study is accomplished based on the working pressure , rate of air flow into the system, fuel cell current density, fuel unit cost , capital cost ,and electricity price to evaluating the total cost rate including investment, operational and environmental are investigated. Results show that increasing of the working pressure and rate of air flow into the system; cause the economic performance of the system to reduce and the environmental emission to increase. Furthermore, the electrical energy cost is obtained 0.09 $kW h and payback period of the investment is about 5.4 years. 11