【摘要】 燃油的闭式注蒸汽燃气轮机 (STIG)循环是一种高效率、低污染及少用水的新型动力循环 ,而燃煤气的闭式注蒸汽燃气轮机循环不仅具有注蒸汽燃气轮机循环的优越性能 ,同时可以实现煤的高效、清洁利用的目的 .给出了燃料改用煤气后 ,燃油的与燃煤气的闭式注蒸汽燃气轮机循环的性能比较 ,同时分析了两循环分别采用一次中间再热后 ,再热措施对两循环热效率的不同影响 .再热措施只有在初温较低、压比较高时才能提高IGCSTIG循环的热效率 ,而不象CSTIG循环那样 ,在所有压比范围内 ,再热均能使热效率有所提高 .更多还原

【Abstract】 Presents the comparison between the thermodynamic performance of oil burning closed STIG cycle and integrated gasification closed STIG cycle and analysis of the influence of reheating on efficiency of the two cycles and concludes that for IGCSTIG cycle, reheating can improve the efficiency only at lower inlet temperature of turbine and higher pressure ratio. It is different from that for CSTIG cycle where fuel is oil and the thermal efficiency of the cycle can be always improved by taking reheating measures.更多还原