基于理论的多种可再生能源互补供能系统综合性能评价方法

Comprehensive Performance Evaluation Method of Hybrid Renewable Energy System Based on Exergy Theory

从能源效益、经济效益和环境效益的角度,基于层次分析法,提出多种可再生能源互补供能系统综合性能评价方法,并对实际工程进行试评价。结果表明:基于理论的评价指标能体现能量"质"的差异;提出的综合性能评价方法合理可行;试评价工程空气源热泵初投资较高,但所起作用较小,影响互补供能系统综合性能;全面定量评价系统综合性能有助于进一步完善互补供能系统,意义显著。

From aspects of energy, economic and environmental benefits, and based on analytic hierarchy process, an evaluation method of hybrid renewable energy system comprehensive performance was built. An actual hybrid renewable energy system was then evaluated with the proposed method. The results＇ show that evaluation indicators based on exergy theory can reveal differences of ＂energy quality＂. The proposed evaluation method is reasonable and feasible. The air source heat pump system of the evaluated hybrid renewable energy system（ HRES） plays little role in the whole system （on the test day） with a relatively high initial investment, which adversely affects＇ the comprehensive performance of the HRES. Quantitatively evaluating comprehensive performance of FIRES plays a significant role in perfecting the system.