摘要
基于LNG冷能利用的低温冷库群的方案,利用Aspen Hysys仿真模拟软件搭建完整流程,进行13种冷媒的比选、串并联连接方式比较及经济效益分析。研究发现:1号(R23)、3号(R170)、8号(R508A)、11号(50%R170+50%R744)、12号(45%R290+55%R744)以及13号(29%R290+71%R744)冷媒皆可选择使用。其中,采用11号、13号冷媒制冷效果较好,采用12号冷媒制冷效果最好。利用LNG冷能为低温冷库群提供冷源的方案,适合采取不同的低温冷库全部并联的方式。
Based on the scheme of low-temperature cold storage group utilizing LNG cold energy,Aspen Hysys simulation software is used to build a complete process,compare and select 13 refrigerants,compare series and parallel connections,and analyze economic benefits. It is found that No. 1( R23),3( R170),8( R508 A),11( 50% R170 + 50% R744),12( 45% R290 + 55% R744) and 13( 29% R290 +71% R744) refrigerants are all optional. Among them,No. 11 and No. 13 refrigerants have better refrigeration effect,and No. 12 refrigerants have the best refrigeration effect. The scheme of using LNG cold energy to provide a cold source for the low-temperature cold storage group is suitable for adopting all parallel ways of different low-temperature cold storage.
出处
《煤气与热力》
2020年第4期J0006-J0009,J0014,J0044,J0045,共7页
Gas & Heat
