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Design and evaluation of integrated energy system combining solar energy and compressed-air energy storage

Author

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  • Wang, J.L.
  • Yan, Ting
  • Pan, W.G.

Abstract

A new integrated energy system (IES) has been proposed by combining the cooling, heating, and power generation (CCHP) system coupled with PV/T and compressed air energy storage (CAES). Based on the developed control operation strategy, rigorous system modeling and dynamic simulation are carried out by TRNSYS to determine the integrated operation effect of each subsystem. Energy utilization efficiency and annual value of costs were adopted to assess the benefits of the system. A building in Gansu Longnan area is selected as a study case. The study results show that the proposed system can meet the building load demand well. The PV efficiency and thermal efficiency are 0.17 and 0.19, respectively. The gas ratio of CAES storage tank is 0.94, which is safe and stable. In addition, the energy utilization is maximum when the internal combustion engine proportioning capacity is 30 % of the maximum heat load, which is 89.13 %. The annual value of the cost is 2.49 × 107 RMB during 40 years of operation.

Suggested Citation

  • Wang, J.L. & Yan, Ting & Pan, W.G., 2024. "Design and evaluation of integrated energy system combining solar energy and compressed-air energy storage," Renewable Energy, Elsevier, vol. 232(C).
    • Handle: RePEc:eee:renene:v:232:y:2024:i:c:s0960148124011364
    DOI: 10.1016/j.renene.2024.121068
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