Development of 10kW Proton Exchange Membrane Fuel Cell Combined Heat
and Power System for Domestic Building Services 2022-01-7036
Cogeneration equipment based on hydrogen proton exchange membrane fuel cell has
become one of the most economical and flexible low-carbon distributed power
supply equipment, which has been widely concerned in scientific research and
commercial promotion. The optimized integration of the system is the key step to
realize commercialization. This paper focuses on the analysis of the technical
status of the key components of combined heat and power (CHP) system and put
forward the theoretical design method and operation strategy of each subsystem
for a 10kW CHP system based on PEMFC. Firstly, for the air supply subsystem, it
was found that when the back pressure valve was placed behind of the membrane
humidifier, the air humidity of stack inlet increased gradually with the
increase of current density, which presented a contrary trend from that at the
front. The pressure difference inside the membrane humidifier was obviously
reduced. Secondly, in addition to recovering the waste heat from coolant, an
operation strategy that preheating the coolant by stored hot water was proposed,
which helped to save the system cost due to coolant heater and improve the
overall efficiency. The construction of the 10kW CHP system in this paper
provides a guidance for the design and integration of CHP system based on PEM
fuel cells.
Citation: Ma, T., Li, R., Gao, T., Meng, Y. et al., "Development of 10kW Proton Exchange Membrane Fuel Cell Combined Heat and Power System for Domestic Building Services," SAE Technical Paper 2022-01-7036, 2022, https://doi.org/10.4271/2022-01-7036. Download Citation