摘要
首先对内燃机、燃气轮机以及微燃机在发电效率、余热特性、变负荷特性、环境影响以及经济性能等方面进行了分析,通过分析,得出了不同动力装置的适用场合;以北京市某小型宾馆为应用对象,拟采用内燃机冷热电联供系统和微燃机冷热电联供系统作为该宾馆的供能系统,在满足宾馆用能需求的前提下,分析比较了这两种系统在变负荷条件下的天然气耗量、一次能源利用率等方面,最后分析了冷热电联供系统高效发展的瓶颈问题,通过分析得到以下结论:从燃气耗量和一次能源利用率两方面来看,内燃机冷热电联供系统在该类型的建筑中更具优势;冷热电联供系统与用户间的供需不匹配问题是制约其高效率发展的重要瓶颈。
The power generation efficiency, characteristic of waste heat and variable load, environmental per- formance and economic performance of internal combustion engine, gas turbine and micro gas turbine are ana- lyzed. Through the analysis, the applicability of different power plant is obtained. Taking a small hotel in Bet- jing as the object of application, the combined cooling heating and power system （CCHP） based on internal combustion engine and micro gas turbine is used to meet the load demand of the hotel. The consumption of nat- ural gas and primary energy rate of the two systems are compared and the bottleneck of the high efficiency de- velopment of the CCHP system is analyzed in the end. Through the analysis, the following conclusions are ob- tained： from the gas consumption and primary energy rate, the CCHP system of internal combustion engine has more advantages in this type of building, mismatch between supply and demand is the main bottleneck which restricts the high efficient development of of the CCHP system.
出处
《电力与能源》
2016年第4期476-482,共7页
Power & Energy
基金
国家重点基础研究计划项目(No.2014CB249200)
关键词
内燃机
燃气轮机
微燃机
冷热电联供系统
internal combustion engine gas turbine micro gas turbine CCHP applicability
