梁胜莹,高建强,马明皓
LIANG Shengying,GAO Jianqiang,MA Minghao

• 1:华北电力大学能源动力与机械工程学院

摘要(Abstract)：

随着分布式能源系统的快速发展,燃气轮机系统的设计及研究得到广泛关注。同时,富氧燃烧技术可为燃气轮机的清洁燃烧提供技术方案,因此基于富氧燃烧燃气轮机系统,先分模块对燃气轮机主要部件进行数学建模。其次,采用EBSILON仿真软件搭建富氧燃烧燃气轮机的系统模型,计算得到机组的最佳压比为π=11.18。最后,对富氧燃烧燃气轮机进行变工况分析,分析了不同负荷、压比运行时,不同运行方案对机组的整体热力性能的影响;进行助燃剂O_2变工况分析。结果表明:在助燃剂O_2质量分数低于22%时,机组比功随着助燃剂中O_2质量分数的提高而增大;在O_2质量分数高于22%时,机组比功基本维持恒定,其数值595 kJ/kg,机组效率随着助燃剂O_2质量分数的提高而增大。
With the rapid development of distributed energy system, the design and research of gas turbine system have attracted wide attention. Oxygen enriched combustion technology provides a technical solution for the clean combustion of gas turbines. Firstly, on the basis of the oxygen enriched gas turbine system, the main components of the gas turbine are mathematically modelled. Secondly, EBSILON is used to build the model of oxygen enriched gas turbine. It is calculated that the optimal pressure ratio of the unit is: π=11.18.Finally, the variable conditions of oxygen enriched gas turbine system are analyzed, and the influence of different operation schemes on the whole thermal performance of the unit is analyzed in the case of different load and pressure ratios. The paper discusses the influence of the concentration of oxidizer O_2 on the unit performance and the results show that When the mass fraction of O_2 is below 22%, the unit specific power increases with the increase of O_2 mass fraction in the oxidizer. When the mass fraction of O_2 in the oxidizer is higher than 22%, the unit specific power remains almost constant. The numerical value is 595 kJ/kg, and the unit efficiency increases with the increase of the mass fraction of the oxidizer O_2.

关键词(KeyWords)： 富氧燃烧;燃气轮机;热力计算;性能分析
oxygen-enriched combustion;gas turbine;thermal calculation;performance analysis

Abstract:

Keywords:

基金项目(Foundation): 河北省自然科学基金(F2012502068)

作者(Author): 梁胜莹,高建强,马明皓
LIANG Shengying,GAO Jianqiang,MA Minghao

DOI: 10.19585/j.zjdl.201810012

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