THE OPTIMUM PRESSURE RATIO FOR A COMBINED-CYCLE GAS-TURBINE PLANT

被引：12
|
作者：
HORLOCK, JH
机构：
[1] Department of Engineering, Whittle Laboratory, University of Cambridge
来源：
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY | 1995年 / 209卷 / 04期
关键词：
GAS TURBINE CYCLES; COMBINED CYCLE GAS TURBINE PLANT; OVERALL EFFICIENCY; OPTIMUM PRESSURE RATIO; SPECIFIC WORK;
D O I：
10.1243/PIME_PROC_1995_209_004_01
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A graphical method of calculating the performance of gas turbine cycles, developed by Hawthorne and Davis (1), is adapted to determine the pressure ratio of a combined cycle gas turbine (CCGT) plant which will give maximum overall efficiency. The results of this approximate analysis show that the optimum pressure ratio is less than that for maximum efficiency in the higher level (gas turbine) cycle but greater than that for maximum specific work in that cycle. Introduction of reheat into the higher cycle increases the pressure ratio required for maximum overall efficiency.
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页码：259 / 264
页数：6
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