中冷再热对燃煤气的STIG循环热效率的影响  

IMPACT OF INTER-COOLING AND REHEAT ON THERMAL EFFICIENCY OF COAL-GASIFIED STIG CYCLE

作　　者：陈安斌[1] 王永青[1] 尚德敏[1] 严家禄 王欣[2] 

机构地区：[1]哈尔滨工业大学 [2]哈尔滨市建筑设计院

出　　处：《热力发电》1999年第4期43-46,共4页Thermal Power Generation

基　　金：国家教委博士点基金

摘　　要：将整体煤气化联合循环中的煤气化技术用于注蒸汽燃气轮机循环，使燃油的ＳＴＩＧ循环改为燃煤气的ＳＴＩＧ循环，并对该循环增加了中间冷却和再热设备，同时计算了燃煤气的中冷再热ＳＴＩＧ循环的热效率，分析了中冷和再热对循环热效率的影响，从而得出了不同于燃油ＳＴＩＧ循环的结论，即在现有压比条件下，中冷和再热并不能改善燃煤气的ＳＴＩＧ循环的热效率。Abstract Introduced in this paper is a combination of coal gasification technology used in IGCC with a steam injected gas turbine cycle(STIG),which changes its fuel from oil to gasified coal.The STIG cycle is added with inter-cooling and reheat.Calculations of thermal efficiency are made on this coal gasified inter-cooling and reheat STIG cycle and the impace of inter-cooling and reheat on the thermal efficiency are analyzed.The conclusion is different from that of STIG cycle with oil as the fuel,that is,under the available condition at the moment,the thermal cfficiency of the coal-gasi fied STIG cycle can not be increased by the inter cooling and reheat.

关 键 词：燃气轮机 STIG循环 循环热效率 循环计算 煤气化 

分 类 号：TK472.5[动力工程及工程热物理—动力机械及工程]