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本文推导了简单循环双轴燃气轮机按循环有效的功计的最佳总压比的近似计算公式,并推导了用来估计改变低压压气机压比对机组流通能力、有效功和热效率影响的近似计算公式。文中还通过具体算例说明低压压比的变化对上述诸机组性能的定量影响。
This paper deduces the approximate formula for calculating the optimal total pressure ratio of a simple cycle two-shaft gas turbine according to a cycle-effective work and deduces the approximate calculation for estimating the effect of changing the pressure ratio of a low-pressure compressor on the unit capacity, effective work and thermal efficiency formula. In this paper, a specific example is also given to illustrate the quantitative effects of the changes of low pressure ratio on the performance of the above units.