基于爆震燃烧的燃气轮机理想热力循环分析

发布时间：2018-01-10 12:11

本文关键词：基于爆震燃烧的燃气轮机理想热力循环分析　出处：《西北工业大学学报》2016年01期 　论文类型：期刊论文

【摘要】：鉴于爆震燃烧具有自增压、传播速度快等优点,提出了将燃气轮机中等压燃烧替换为爆震燃烧的理念,并建立了基于爆震燃烧的燃气轮机理想热力循环模型,对比研究了DCGT(detonation cycle of gas turbine)、Brayton和Humphrey 3种循环燃气轮机的综合性能。在压气机压比、吸热量和透平背压相同的条件下,数据分析结果表明DCGT循环燃气轮机较其他2种循环更具优势,在压比为16时其循环热效率较Brayton循环提高15.4%,燃料消耗率降低13.5%;DCGT循环燃气轮机在压比为6.6时的总体性能与压比为16时的Brayton循环相当。
[Abstract]:In view of detonation combustion has the advantages of self pressurization, propagation speed, the isobaric gas turbine combustion detonation combustion to replace the concept, and establish the ideal thermodynamic model of gas turbine cycle detonation combustion based on the comparative study of the DCGT (detonation cycle of gas turbine), the comprehensive performance of Brayton and Humphrey 3 kinds of cycle gas turbine in the compressor pressure ratio, heat absorption and turbine back pressure under the same conditions, the results of data analysis showed that the DCGT cycle gas turbine cycle more than the other 2 kinds of advantages, the compression ratio of 16 when the cycle Brayton cycle to improve the thermal efficiency is 15.4%, fuel consumption decreased 13.5%; DCGT cycle gas turbine in pressure ratio the overall performance of 6.6 and the pressure ratio is 16 Brayton.

【作者单位】：西安热工研究院有限公司;西北工业大学动力与能源学院;
【基金】：华能集团总部科技项目(HNKJ14-H05)资助
【分类号】：TK471
【正文快照】： 燃烧是燃气轮机燃料能量释放过程中的关键环节,缓燃和爆震燃烧是2种不同的燃烧方式。缓燃燃烧即现代燃气轮机中被广泛采用的等压燃烧,其火焰传播速度低,一般约为1 m/s量级。爆震燃烧是一种耦合了强激波的燃烧,其燃烧过程非常迅速,可产生超声速燃烧波,即爆震波。爆震波的传播是

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