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中文摘要: 燃气轮机再热被认为可以提高效率和比功。本文基于准一维透平连续膨胀冷却模型和底循环简明 估算模型对再热燃气轮机联合循环进行热力性能研究，以GT-26燃气轮机为基准分析了循环总压比、燃烧室 出口温度、再热压力等关键参数对联合循环热力性能的影响特性，并与无再热燃气轮机的联合循环性能进行 了比较。研究表明:不同燃烧室出口温度下的再热燃气轮机联合循环效率最大值对应的循环总压比相差不 大;不同燃烧室出口温度和循环总压比下，联合循环效率对应的最佳高压透平膨胀比不同。当燃烧室出口温 度为1 683 K时，在各自的效率最佳压比下，再热燃气轮机联合循环比无再热燃气轮机的联合循环效率提高 了 1.34个百分点，同时比功提高了 33.2%。
Abstract:Gas turbine reheat is considered to improve efficiency and specific power. In this paper， based on the quasi- onedimensional turbine continuous expansion cooling model and the concise estimation model of the bottom cycle，the thermodynamic performance of the reheat gas turbine combined cycle was studied. Based on the GT-26 gas turbine，the influence of key parameters
such as the total pressure ratio of the cycle， the outlet temperature of the combustion chamber and the reheat pressure on the
thermodynamic performance of the combined cycle was analyzed，and it was compared with the combined cycle performance of the nonreheat gas turbine. The results show that the total pressure ratio corresponding to the maximum efficiency of the reheat gas turbine
combined cycle at different combustor outlet temperatures is not much different. The optimal high pressure turbine expansion ratios
corresponding to the combined cycle efficiency are different under different combustor outlet temperatures and total pressure ratios. When the outlet temperature of combustion chamber is 1 683 K，the efficiency of reheat gas turbine combined cycle is 1.34 percentage points higher than that of non-reheat gas turbine combined cycle，and the specific power is 33. 2 \ higher than that of non-reheat gas
turbine combined cycle.
文章编号： 中图分类号：TK471 文献标志码：
基金项目:国家科技重大专项(2017-1-0002-0002)
| 作者 | 单位 |
| 贾晨曦 | 中国科学院大学 |
| 王波 | 中国科学院大学中国科学院先进能源动力重点实验室（工程热物理研究所） |
| 赵丽凤 | 中国科学院大学中国科学院先进能源动力重点实验室（工程热物理研究所） |
| 张士杰 | 中国科学院大学中国科学院先进能源动力重点实验室（工程热物理研究所） |
引用文本：
作者.题名[J].刊名,出版年份,卷号(期号):起止页码.
[2]KIM K M, PARK J S, DONG H L, et al. Analysis of conjugated heat transfer, stress and failure in a gas turbine blade with circular cooling passages[J]. Engineering Failure Analysis, 2011, 18(4):1212-1222.
作者.题名[J].刊名,出版年份,卷号(期号):起止页码.
[2]KIM K M, PARK J S, DONG H L, et al. Analysis of conjugated heat transfer, stress and failure in a gas turbine blade with circular cooling passages[J]. Engineering Failure Analysis, 2011, 18(4):1212-1222.