AUTHOR=Mo Lili , Liu Xin , Chen Haoyong , Zhao Zhendong , Chen Jinbin , Deng Zeyu 

TITLE=Exergy-economic analysis and evaluation method of park-level integrated energy system

JOURNAL=Frontiers in Energy Research

VOLUME=Volume 10 - 2022

YEAR=2022

URL=https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2022.968102

DOI=10.3389/fenrg.2022.968102

ISSN=2296-598X

ABSTRACT=The park integrated energy system (PIES), a typical user side energy supply mode, has developed rapidly in recent years due to its economic and environmental advantages. The analysis and evaluation of PIES has become a challenging task due to variation in energy quality of cold, heat, and electricity. In order to solve the problems, an analysis and evaluation method of PIES based on exergy economics is proposed, which lays the foundation for the subsequent optimization of system operation. First, an unified analysis model of PIES is developed based on exergy economics theory. Second, the corresponding analysis and evaluation method for this model is proposed. In this method, the exergy efficiency and exergy loss are used as the evaluation index of system energy consumption characteristics, while the exergy loss cost and exergy economic coefficient are used as the evaluation index of system economic characteristics. Meanwhile, an evaluation procedure for using this method is also designed. Lastly, the effectiveness of the given approach is validated in a PIES case.