Solar energy utilization to preheat air sent to the cathode of biogas fueled solid oxide fuel cell, By Ali Saberimehr

Research

Title	Solar energy utilization to preheat air sent to the cathode of biogas fueled solid oxide fuel cell
Type	Presentation
Keywords	solid oxide fuel cell, solar dish collector, air preheating, exergy destruction, biogas
Researchers	sanaz najafi، Ali Saberimehr، Mortaza Yari، Seyed Mohammad Seyed Mahmoudi

Abstract

Present research is devoted to propose a new concept for Solid oxide fuel cell system integrating solar dish collector. Solar energy is utilized in order to preheat the required air of cathode of stack. In this concept, the sizing of air heat exchanger is influenced by using the solar energy. Energy and exergy balance equations ae applied for the system. A comparative study is performed between the new designed system and the base case. It is found that by an increase in the solar utilization temperature, the air heat exchanger size would decrease by up to 45%. However, it is revealed that the highest exergy destruction is attributed to the solar dish collector with an almost 62% because of the high temperature differences are present in the solar dish collector. After solar dish collector, air heat exchanger, after burner and SOFC have the largest shares of exergy destruction parts respectively.