Thermodynamic analysis of a tri-generation systemproducing power, heat, and hydrogen using protonexchange membrane electrolyzer

Studies in the field of trigeneration energy systems of power, heating, and hydrogen production byintegrating proton exchange membrane electrolyzer and supercritical carbon dioxide power cycle areof great importance. These studies provide valuable insights into improving energy efficiency anddeveloping novel technologies. One of the main contributions of these studies is the potential toenhance energy efficiency. Trigeneration systems can utilize waste heat from power generationprocesses for heating purposes, thereby increasing overall system efficiency. By integrating a protonexchange membrane electrolyzer and supercritical carbon dioxide power cycle, researchers canexplore the possibility of using excess electricity produced by the power cycle to generate hydrogen,which can be further utilized as a clean fuel source. This integration has the potential to significantlyimprove the overall energy efficiency of the system, reducing energy wastage and minimizingenvironmental impact. In this regard, an integrated energy system is modeled in this study to producepower, heating, and hydrogen with the capacity to store oxygen. Increasing current densitysignificantly improves hydrogen and oxygen storage, with hydrogen storage increasing from ۰.۱ g/minto ۵۰.۲ g/min and oxygen storage increasing from ۰.۵ g/min to ۳۹۸ g/min. Improving the compressionratio significantly enhances total power output from ۱۷۶.۵ kW to ۳۱۲.۹ kW. Improving thecompression ratio resulted in a boost in efficiency, increasing from ۴۷.۶% to an impressive ۸۴.۴%.When the temperature of the combustion chamber is increased, there is a clear increase in the heatingair capacity from ۵۳۱۹ m۳/min to ۶۵۶۲ m۳/min.

کلیدواژه ها:

Proton exchange membrane electrolyzer ، Trigeneration energy system ، Power ، Hydrogen ، Thermodynamic analysis