• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2016, Vol. 52 ›› Issue (12): 144-151.doi: 10.3901/JME.2016.12.144

• 可再生能源与工程热物理 • 上一篇    下一篇

催化燃烧与旋转回热耦合的燃气轮机性能分析

桑振坤, 张倩倩, 薄泽民, 翁一武   

  1. 上海交通大学动力机械与工程教育部重点实验室 上海 200240
  • 出版日期:2016-06-15 发布日期:2016-06-15
  • 作者简介:桑振坤(通信作者),男,1983年出生,博士研究生。主要研究方向为新能源动力系统仿真与分析。E-mail:goosang@sjtu.edu.cn;翁一武,男,1962年出生,博士,教授,博士研究生导师。主要研究方向为动力机械与工程、新能源技术。E-mail:ywweng@sjtu.edu.cn
  • 基金资助:
    国家自然科学基金(51376123)和国家高技术研究发展计划(863计划,2014AA052803)资助项目

Thermal Performance Analysis of Coupled Catalytic Combustion and Rotary Regenerative of Gas Turbine

SANG Zhenkun, ZHANG Qianqian, BO Zemin, WENG Yiwu   

  1. Key Laboratory for Power Machinery and Engineering of Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240
  • Online:2016-06-15 Published:2016-06-15

摘要: 低热值燃气总量巨大,种类繁多,很大一部分由于热值过低无法点火燃烧,常直接排入大气,造成能源浪费,加剧环境污染。为了利用这部分低热值燃气,提出一种催化燃烧与旋转回热耦合的新型燃气轮机系统,把催化燃烧室和高温换热器两个部件融合于一个部件中。相比传统燃气轮机,该燃机具有独特的优势:以低热值燃气为主燃料,采用催化燃烧;旋转回热保证了催化燃烧反应持续发生;结构布局更加紧凑。分析这种新型燃气轮机系统的热力循环特点,计算100 kW级新型燃机的热力性能,研究旋转周期等参数对性能的影响。结果表明:在使用甲烷浓度为2%的低浓度燃气时,透平入口温度保证在1 030~1 200 K,燃机能正常工作,从理论上证明了该新型系统是可行的;不同旋转周期之间系统运行的热力参数变化在3%以内,呈现准周期性;旋转周期之内系统运行的热力参数呈现波动变化;旋转周期减小,燃机输出功率和热效率降低,其波动性也降低。

关键词: 催化燃烧, 低热值燃气, 旋转回热, 旋转周期, 准周期性

Abstract: There are a lot kinds of low calorific value gas fuels in the world, and the total amount is very huge. Due to low calorific value most of these fuels can’t be realized by ignition and combustion. These fuels are discarded directly, resulting in inadvertent waste of a valuable energy and serous pollution to the atmosphere. In order to utilize these fuels, a new type of gas turbine with coupled catalytic combustion and rotary regenerative have been provided, which had combined combustion and regenerative into one component. Compared with conventional gas turbine, this new machine has many outstanding advantages. Such as using low calorific value gas as main fuel, and the application of catalytic combustion. Rotary regenerative can keep the continue reaction of catalytic combustion. The composition of structure is more compact. The thermal cycle feature of this new type gas turbine system is analyzed, the thermal performance of this new type gas turbine is calculated, effect of rotary period parameter etc to performance is studied. The results prove that when using low calorific value gas containing CH4 2% as main fuel, the temperature into turbine can be kept between 1 030 K and 1 200 K, then the gas turbine can work normally. It has shown that this new type gas turbine is feasible in theory. The variation of thermal parameter is low 3% between rotary period, so the thermal parameter is quasi-period. The thermal parameter fluctuated during the rotary period. Reducing the rotary period, the output power and the thermal efficiency are decreased, the fluctuation also decreased.

Key words: catalytic combustion, low calorific value gas fuels, quasi-period, rotary period, rotary regenerative

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