An integrated design for hybrid combined cooling, heating and power system with compressed air energy storage

• Published in: Applied energy Vol. 210; pp. 1151 - 1166
• Main Authors: Yan, Yi, Zhang, Chenghui, Li, Ke, Wang, Zhen
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 15.01.2018
• Subjects: Active storing strategy; Compressed air energy storage; Hybrid CCHP system; Integrated design; Multi-objective optimization; Integrated design; Multi-objective optimization; Active storing strategy; Compressed air energy storage; Hybrid CCHP system
• ISSN: 0306-2619; 1872-9118
• DOI: 10.1016/j.apenergy.2017.07.005

•Integration of CAES with trigeneration characteristics enriches a CCHP system’s operation mode.•Integrated design method can solve operation mode uncertainty introduced by renewable energy.•Active storing strategy for CAES exhibits significant superiority in peak sheaving and efficiency increase.•Novel algorithm C-NSGA-II provides accurate and efficient solutions for the multi-objective optimization model. The inherent characteristics of renewable energy, such as highly random fluctuation and anti-peak, are essential issues that impede optimal design of a combined cooling, heating and power (CCHP) system. This study presents a novel hybrid CCHP system integrated with compressed air energy storage (CAES). The operation mode of the new system is enriched by the trigeneration characteristic of CAES when compared with a traditional CCHP system. Additionally, an integrated design method based on a tri-level collaborative optimization strategy is proposed for the new scheme. An active storing strategy is introduced to maximize the utility of the superiority of CAES for peak sheaving and efficiency increase. Thus, a novel algorithm based on a hybrid algorithm of Non-Dominated Sorting Genetic Algorithm-II and Multi-Objective Particle Swarm Optimization is employed to solve the multi-objective optimization model with the aim of minimizing the total cost and emissions. A case study shows the effectiveness of the above methods. The implementation of the study fundamentally improves the overall energy utilization degree and the ability for renewable consumption to thereby provide a guiding principle for CCHP system design.