摘要
论述了天然气管网压力能的计算方法,利用天然气压力能进行储气调峰、发电、天然气液化、膨胀制冷的工艺流程。采用透平膨胀机回收利用天然气管道的压力能时,压力转换为机械功和冷火用,机械功大于冷火用,充分利用转换的机械功和冷火用有利于提高天然气管道压力能的利用效率。
The calculation method of pressure energy of natural gas pipeline network, as well as the technological processes of gas storage peak-shaving, electricity generation, natural gas liquefaction and expansion refrigeration by using ratural gas pressure energy are described. When the pressure energy of natural gas pipeline is recovered by turbo-expander, the pressure exergy is converted into mechanical work and cold exergy, and the mechanical work is bigger than the cold exergy. The full utilization of the converted mechanical work and cold exergy is favorable to increase the utilization efficiency of pressure energy of natural gas pipeline.
出处
《煤气与热力》
2008年第11期1-5,共5页
Gas & Heat
关键词
天然气管道
压力能
[火用]
natural gas pipeline
pressure energy
exergy
