Abstract
The compressed air from high-pressure compressor enters the proton exchange fuel cell and was discharged from the cathode after reacting. This part of the exhaust gas had a certain residual pressure. In order to study the effect of cathode exhaust gas residual pressure recovery on the efficiency of proton exchange membrane fuel cell system, this paper used Simulink software to establish a proton exchange membrane fuel cell exhaust gas recovery system model. In the model, the mass flow of supply air was controlled by controlling the air excess ratio Under this condition, the work done by the exhaust gas on the turbine could account for 18% of the parasitic power consumption. The simulation results showed that this system could increase the system power by up to 13% compared with the energy recovery turbine system, which had good consistency, which was of great significance for PEMFC system design and exhaust gas recovery.
Highlights
Proton Exchange Membrane Fuel Cell (PEMFC) had some advantages, such as fast start-up, low operating temperature and low noise
There was large parasitic power consumption, which was a crucial factor affecting the efficiency of the PEMFC system
There already had been some research on the modeling the PEMFC system, which was helpful to the work of this paper
Summary
Proton Exchange Membrane Fuel Cell (PEMFC) had some advantages, such as fast start-up, low operating temperature and low noise. The air supply of the PEMFC was usually compressed by a compressor, cooled by cooling system, dampened by humidifying system, and sent to the cathode of the fuel cell stack, and discharged after being reacted inside the battery. In this process, there was large parasitic power consumption, which was a crucial factor affecting the efficiency of the PEMFC system. The air supply system of PEMFC was built by controlling the air excess ratio Based on this model, a turbine system was built according to the turbine MAP diagram[3] to recover the energy from the exhaust gas. Second a model of the series supercharger composite supercharging mathematical model was first built to reduce the parasitic power consumption of compressor and improve the power of system
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
