The Characteristics of a PEM Fuel Cell Engine with 40 kW Vehicle Stacks

Abstract

This paper describes a PEM Fuel Cell Engine (FCE) with 40 kW stacks designed for a car. This was developed by DICP and Sunrise Power and is funded by the Chinese “863” key project. The FCE system construction, stack performance, specifications, and operating characteristics are explained. The efficiency of the FCE is analyzed. The net power output for this FCE is 27 kW and the efficiency is 35–38%. The utilization of air and hydrogen are more than 50% and 97%, respectively.

Flight Test Results for a Fuel Cell Unmanned Aerial Vehicle

“…The balance of plant power consumption represents 17% of the gross electrical output power of the fuel cell at cruise. This also compares favorably to the 20%-35% that has been reported in the literature [8][9][10]. The efficiency of the electric motor is much lower than was predicted by the models supplied by the motor manufacturer.…”

Parameter optimization of PEMFC stack under steady working condition using orthogonal experimental design

“…The factors that affect the output performance consistency can be divided into 2 categories: the structure of the stack components and the operating parameters. The former one could have caused by the differences in manufacture and assembly of each membrane electrode assembly (MEA), the selection of stack materials, irrational design of the flow field, and the flow path . And the operating parameters could also have a significant impact on the performance consistency.…”

“…The former one could have caused by the differences in manufacture and assembly of each membrane electrode assembly (MEA), the selection of stack materials, irrational design of the flow field, and the flow path. [18][19][20][21] And the operating parameters could also have a significant impact on the performance consistency. For example, higher humidification would easily cause flooding in some pieces of a stack, and some catalyst active site would be coated by water, which in turn leads to a consistency problem.…”

Model-based power control strategy development of a fuel cell hybrid vehicle

“…In the powertrain control system, the relationship between P Lmt and P fset is just the FCE model. According to [8] and bench test data (Fig. 3), the relationship between them can be simplified as a first-order system approximately, as the transfer function shown in Eq.…”

“…Real-time output power of FCE is influenced by power load and battery SOC (state of charge). According to [8], FCE is a nonlinear dynamic system, and in fuel cell control level FCE model must be nonlinear and very complicated. But in powertrain control level too complicated FCE model is unnecessary.…”