分布式能源系统性能评价指标及运行参数测试

Performance Evaluation Indexes and Performance Parameter Test of Distributed Energy System

天然气分布式能源系统的性能评价包括热力性能评价、经济性能评价及环保性能评价。热力性能评价主要考虑一次能源利用率、火用效率。经济性能评价主要考虑与输出相同能量的传统分供系统(通常采用市电供电,燃气锅炉供热,电制冷装置供冷)相比,天然气分布式能源系统的静态投资回收期。环保性能评价主要考虑单位产能二氧化碳排放量,以及与输出相同能量的传统分供系统相比,天然气分布式能源系统的二氧化碳减排量。天然气分布式能源系统的运行参数测试,涉及天然气进气系统、发电机组、溴化锂吸收式机组等。计算机辅助测试系统可实时采集运行参数,计算出热力性能评价指标。

The performance evaluation of natural gas distributed energy system includes thermal performance evaluation,economic performance evaluation and environmental performance evaluation.The primary energy utilization rate and exergy efficiency are mainly considered in thermal performance evaluation.The economic performance evaluation mainly considers the static investment recovery period of the natural gas distributed energy system compared with the traditional distribution system that outputs the same energy(usually using mains supply,gas boiler for heating,and electric refrigeration unit for cooling).The carbon dioxide emission per unit of production capacity,the traditional separate supply system with same energy output and the carbon dioxide emission reduction of natural gas distributed energy system are mainly considered in environmental performance evaluation.The thermal performance parameter test of natural gas distributed energy system relates to natural gas inlet system,generator set,lithium bromide absorption unit and so on.Computer-aided test system can collect operating parameters in real time and calculate thermal performance evaluation indexes.