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Demand flexibility and its impact on a PEM fuel cell-based integrated energy supply system with humidity control

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  • Cai, Shanshan
  • Li, Xu
  • Yang, Ling
  • Hua, Zhipeng
  • Li, Song
  • Tu, Zhengkai

Abstract

The development of efficient energy systems and renewable alternative energy sources has attracted substantial attention owing to the rise in environmental deterioration and energy usage. A combined cooling, heating, and power (CCHP) system can fully use different types of energy with low emissions and offers a viable solution to address these issues. Demand flexibility is a key issue in collaborating with different types of supplies and demands for optimal system operation. In this study, a proton-exchange membrane fuel cell driven CCHP system with humidity control is proposed to fully investigate the impact of demand flexibility on system operation. A novel flexible load regulation strategy was designed for the proposed system. The results show that flexible load regulation can reduce the thermal storage capacity by 25 %. Supplement heating and cooling do not need operate in winter and summer. With flexible regulation, the heating load can be reduced by 15.69 % in winter, and the cooling and dehumidification loads can be reduced by 30.71 % and 6.09 % in summer. The reductions in hydrogen consumption can reach 1.98 % and 7.51 % during winter and summer. The proposed method can simultaneously increase the exergy efficiency and reduce carbon emission, as well as the economy cost.

Suggested Citation

  • Cai, Shanshan & Li, Xu & Yang, Ling & Hua, Zhipeng & Li, Song & Tu, Zhengkai, 2024. "Demand flexibility and its impact on a PEM fuel cell-based integrated energy supply system with humidity control," Renewable Energy, Elsevier, vol. 228(C).
    • Handle: RePEc:eee:renene:v:228:y:2024:i:c:s0960148124006682
    DOI: 10.1016/j.renene.2024.120600
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    References listed on IDEAS

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    1. Chen, Jingxian & Wang, Sen & Sun, Yongwen & Zhang, Cunman & Lv, Hong, 2025. "Multi-dimensional performance evaluation and energy analysis of proton exchange membrane water electrolyzer," Applied Energy, Elsevier, vol. 377(PB).

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