燃料化学性质对燃烧室排气冒烟的影响
EFFECTS OF FUEL CHEMICAL PROPERTIES ON EXHAUST SMOKE FROM GAS TURBINE COMBUSTOR
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摘要: 燃气轮机燃烧室烟粒生成所涉及的各种反应机理非常复杂,至今尚未搞清楚。但导致烟粒生成的条件.至少从工程观点.已经相当清楚。现已明白,排烟是由主燃区富油、缺氧区中生成很细的烟粒引起.如用压力雾化喷嘴,主要烟粒生成区处于燃烧室中心燃油喷雾锥内。这里燃烧产物迥流和雾锥相遇.温度较高,有油蒸汽,但缺氧、故生成大量烟粒,主燃区生成的烟粒子大部分在下游高温区域内氧化消耗掉。Abstract: The state-of-the-art of the study on soot formation and exhaust smoke From gas turbine combustor has been reviewed with stress on the effects of fuel chemical properties. Based on a great amount of experimental data obtained on a variety of gas turbine combustors. the best correlation parameter representing the fuel effect has been determined as SP-0.92(100-Δx)-0.4, where SP is smoke point,V is the naphthalene content ( in percentage) of the fuel.
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