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Robust multi-objective optimization with life cycle assessment of hybrid solar combined cooling, heating and power system

机译：混合太阳能结合冷却，加热和电力系统的生命周期评估强大的多目标优化

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摘要

Hybridization of solar energy technologies results in varieties of inherent characteristics of natural gas combined cooling, heating and power (CCHP) system. This work aims to propose a life cycle assessment-based robust multi objective optimization model of hybrid solar-assisted CCHP system, which is driven by the complementarities of photovoltaic/thermal collectors and gas turbine. The environmental impact potentials including global warming, respiratory effect and acidification of hybrid system are assessed according to life cycle energy and emission inventory analysis. The optimal plan of hybrid system, using nondominated sorting genetic algorithm II, is implemented to minimize these environmental impacts, in which the robustness is incorporated as part of the search process of genetic algorithm. The sensitivity analysis of candidate Pareto solutions by transferring to linear programming sub-problem drives to the selection of new solutions with robustness requirements. A case study in a hotel building was presented to demonstrate the proposed optimization method. The key uncertain factors on optimization and system performances are discussed. The comparisons of partially and fully covered photovoltaic/thermal collectors indicate that the partially covered collectors lower the impacts of respiratory effect and acidification by 28.4% and 6.7%, respectively, by optimizing system configurations and energy compositions, and the optimum partially covered collectors with CCHP system is more cost-effective and feasible.
机译：太阳能技术的杂交导致天然气结合冷却，加热和功率（CCHP）系统的固有特性品种。该工作旨在提出混合太阳能辅助CCHP系统的生命周期评估的鲁棒多目标优化模型，该系统由光伏/热收集器和燃气轮机的互补性驱动。根据生命周期能量和排放库存分析，评估包括全球变暖，呼吸效果和杂种系统酸化的环境影响潜力。利用NondoMinated分类遗传算法II的混合系统的最佳计划以最小化这些环境影响，其中鲁棒性被纳入遗传算法的搜索过程的一部分。候选帕累托解决方案对线性规划子问题驱动到鲁棒性要求选择新解决方案的敏感性分析。提出了在酒店大楼的案例研究以证明所提出的优化方法。讨论了优化和系统性能的关键不确定因素。部分和完全覆盖的光伏/热收集器的比较表明，部分覆盖的收集器通过优化系统配置和能量组成，分别将呼吸效果和酸化的影响降低了28.4％和6.7％，以及CCHP的最佳部分覆盖的收集器系统更具成本效益和可行的。

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