Exergy efficiencies of the gas turbine become an important issue in recent years and by the way conducted studies regarding to this subject shows that the highest exergy destruction is observed in the combustor and afterburner modules. Therefore it is beneficial to perform analyses that are specific to the combustor exergy efficiency. This study includes the energy ηcc$\left( {{\eta _{cc}}} \right)$ and exergy efficiencies ηex$\left( {{\eta _{ex}}} \right)$ (thermo-efficiencies) of a tubular combustor for different inlet conditions. Both of the first law and second law efficiencies have been performed on the experimental data and efficiency trends are investigated for changing aerodynamic conditions. Combustor tests have been conducted in an atmospheric test rig and combustor air inlet temperatureT03$\left( {{T_{03}}} \right)$, air mass flow rate m˙a$\left( {{{\dot m}_a}} \right)$ and fuel mass flow rate m˙f$\left( {{{\dot m}_f}} \right)$ have been set for the pre-defined conditions. Moreover, exhaust gas emissions were measured by using a gas analyzer system. In the study, highest energy and exergy efficiencies have been obtained at minimum aerodynamic loading condition as 99.0 % and 70.2 % respectively. Moreover efficiencies have the lowest value as 92.7 % and 54.0 % at the maximum aerodynamic loading condition. To summarize, this study aims to show the energy and exergy trends by changing inlet conditions of a tubular combustor in the atmospheric test rig.

中文翻译：

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进气道条件下管式燃烧器的热效率

近年来，燃气轮机的火用效率已成为一个重要问题，并且通过对该主题进行的研究表明，在燃烧室和加力燃烧器模块中观察到了最高的火用破坏。因此，进行针对燃烧器（火用）效率的特定分析是有益的。这项研究包括能量ηcc$ \左（{{\ eta _ {cc}}} \右）$和火用效率ηex$ \左（{{\ eta _ {ex} _}} \右）$（热效率）的管状燃烧器，以适应不同的进气条件。第一定律和第二定律的效率均已在实验数据上进行，并且针对变化的空气动力学条件研究了效率趋势。燃烧室测试已在大气测试台上进行，燃烧室进气温度T03 $ \左（{{T_ {03}}} \右）$，空气质量流量m˙a$ \左（{{{\ dot m} _a}} \右）$和燃料质量流量m˙f$ \左（{{{\ dot m} _f}} \右）已为预定义条件设置了$。此外，通过使用气体分析仪系统测量了废气排放，在这项研究中，在最小空气动力负荷条件下获得了最高的能量效率和火用效率，分别为99.0％和70.2％。此外，在最大空气动力学负载条件下，效率最低，分别为92.7％和54.0％。总而言之，本研究旨在通过改变大气试验台中管状燃烧室的进气条件来显示能量和火用趋势。在这项研究中，在最小空气动力负荷条件下获得了最高的能量效率和火用效率，分别为99.0％和70.2％。此外，在最大空气动力学负载条件下，效率最低，分别为92.7％和54.0％。总而言之，本研究旨在通过改变大气试验台中管状燃烧室的进气条件来显示能量和火用趋势。在这项研究中，在最小空气动力负荷条件下获得了最高的能量效率和火用效率，分别为99.0％和70.2％。此外，在最大空气动力学负载条件下，效率最低，分别为92.7％和54.0％。总而言之，本研究旨在通过改变大气试验台中管状燃烧室的进气条件来显示能量和火用趋势。