Modeling and Optimization of Natural Gas CCHP System in the Severe Cold Region

Autor: Yidan Song, Qiaoqun Sun, Yu Zhang, Yaodong Da, Heming Dong, Hebo Zhang, Qian Du, Jianmin Gao
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Energies, Vol 16, Iss 12, p 4582 (2023)
Druh dokumentu: article
ISSN: 1996-1073
DOI: 10.3390/en16124582
Popis: A natural gas combined cooling, heating, and power (CCHP) system is a typical integrated energy supply method that optimizes end−use energy. However, how to achieve economically feasible natural gas CCHP in severe cold regions with low−grade heat demand reaching 50% is still a pressing issue. This paper establishes a typical natural gas CCHP system model for severe cold regions and conducts the system. Based on the climate conditions of Harbin, the economic optimization of independent gas turbine systems, internal combustion engines, and gas turbine systems is still a pressing issue. Based on the climate conditions of Harbin, the economic optimization of independent gas turbine systems, internal combustion engine systems, and steam boiler systems under different cooling and heating load ratios was carried out. The combination of “internal combustion engine + steam boiler” has the most optimal cost of RMB 1.766 million (USD 0.255 million), saving 10.7%, 7.8%, and 18.3% compared to the three single equipment subsystems respectively. This provides good theoretical support for the construction of multi−energy heterogeneous energy systems.
Databáze: Directory of Open Access Journals
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