Optimization of a Hybrid Energy System with District Heating and Cooling Considering Off-Design Characteristics of Components, an Effort on Optimal Compressed Air Energy Storage Integration

In this work, the optimal design of a hybrid energy complex, including wind turbines, an internal combustion engine, and an adiabatic compressed air energy storage system is investigated. A novel bi-level optimization strategy is proposed for optimizing the capacity and operational power of each com...

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Bibliographic Details
Published inEnergies (Basel) Vol. 15; no. 13; p. 4634
Main Authors Chen, Shang, Arabkoohsar, Ahmad, Chen, Guodong, Nielsen, Mads Pagh
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.07.2022
Subjects
Adiabatic
Compressed air
compressed air energy storage systems
Design
differential evolution
District cooling
District heating
district heating and cooling
Economic analysis
Efficiency
Electricity
Energy storage
Heat exchangers
Impact analysis
Internal combustion engines
off-design performance
Optimization
Power supply
Turbines
Wind power
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Summary:In this work, the optimal design of a hybrid energy complex, including wind turbines, an internal combustion engine, and an adiabatic compressed air energy storage system is investigated. A novel bi-level optimization strategy is proposed for optimizing the capacity and operational power of each component of the system based on techno-economic considerations. The article presents information and discussions about the impacts of the partial-load operation of the energy storage system components on the optimal rated power and working strategies. The off-design characteristics are proven to have a huge negative impact on the efficiency and economy of the hybrid system. The efficiency reduction of the compressed air energy storage system is about 21% in summer and 8.9% in winter, when the system is operating in partial-load conditions. The operation cost of the system is reduced significantly when carrying out the proposed bi-level optimization strategy.
ISSN:1996-1073
1996-1073
DOI:10.3390/en15134634