Investigation of an integrated powering system for clean locomotives with solid-oxide fuel cell with heat recovery organic Rankine cycle

摘要

In this paper, a novel integrated solid-oxide fuel cell-based powering system with heat recovery for operating an ammonia organic Rankine cycle is introduced and analyzed thermodynamically. The application of this system is intended for clean locomotives. A thermodynamic model that is based on energy and exergy analyses is presented for this integrated system. The results of the analysis show a significant increase in the power output of the organic Rankine cycle that can reach a value of 239.2 kW which is up from 87.74 kW for a system without fuel cell heat recovery. Furthermore, the overall energy and exergy efficiencies have improved up to values of 74.22% and 71.95%, respectively. The parametric studies are performed to focus on investigating parameters of heat recovery and their effects on the overall performance of the integrated system as well as electric power production.