Off-design analysis of SOFC hybrid system

This paper sets out the results of mathematical modeling and numerical simulations of the off-design (part-load) operation of the solid oxide fuel cell hybrid system (SOFC-HS).The governing equations of SOFC-HS modeling are given. An adequate simulator of the SOFC stack was made and described. The performance of the SOFC-HS with part- and over-load operation is shown, and adequate maps are given and described. The ranges of possible system operation conditions are determined.