Energy and exergy analysis of a combined power generation system using PEM fuel cell and kalina cycle system 11

Abstract

This paper presents an energy and exergy analysis of a combined power generation system consists of a Proton Exchange Membrane fuel cell (PEMFC) power station and Kalina cycle system 11 (KCS11) that converts low temperature waste heats into electricity. The application of this combined system is high efficiency electric power generation in a power station. The energy and exergy analysis of the Hybrid power system is carried out to determine the possible improvement of system. Results show that the energy and exergy efficiencies of the combined system, as compared to the PEM fuel cells stack power station without KCS11, are improved about 1.75% and 1.5%, respectively.