Akdeniz Halil Yalcin, Balli Ozgur, Caliskan Hakan
Eskisehir Vocational School, Eskisehir Osmangazi University, Eskisehir, Turkey.
Aeronautical Engineer at 1'st Air Maintenance Factory Directorate (1.HBFM), General Directorate of Military Factories (AFGM), Ministry of National Defence (MND), Eskisehir, Turkey.
J Therm Anal Calorim. 2023;148(9):3585-3603. doi: 10.1007/s10973-023-11982-z. Epub 2023 Feb 15.
In this study, utilization of a bio-based fuel in a turbojet engine is comprehensively monitored with adapting various useful indicators for the scope of the study based on thermodynamic principles. In this regard, extensive energy and exergy, thermoecologic, environmental, enviroeconomic and sustainability analyses are performed for both the turbojet engines fueled by jet kerosene and fueled by a bio-based fuel. As per the main findings, the mass stream of combustion emissions is measured to be 4.547 kg s, when the engine is powered by biofuel. The specific fuel consumption and specific thrust are determined as 0.13 kg kN s and 147.81 kNs kg for jet kerosene-powered case, while they are calculated as 0.15 kg kN s and 148.23 kNs kg for biofuel-powered case. If biofuel is selected over jet-kerosene fuel, it is observed that the engine has better energy efficiency performance by 18.18%. The engine's environmental effect factor value is found as 4.88 for jet-kerosene usage condition, while it is found to be 4.93 for biofuel utilization case. The overall emitted CO emissions is measured as 336,672 kg-CO year for jet-kerosene usage condition, while it is estimated as 222,012 kg-CO year for the biofuel utilization case. Also, as far as biofuel is chosen as alternative to jet-kerosene, the environmental damage cost stream, namely the enviroeconomic parameter of the engine, falls from 59,254.27 US$ year to 39,074.11 US$ year. It is observed that sustainable efficiency factor and exergetic sustainability index outputs of the components of air compressor are the same for jet-kerosene and biofuel utilization cases, which are 8.31 and 7.31, respectively.
在本研究中，基于热力学原理，通过采用各种有用指标，对涡轮喷气发动机中生物基燃料的利用情况进行了全面监测。在此方面，对使用喷气煤油和生物基燃料的涡轮喷气发动机都进行了广泛的能量与㶲、热生态、环境、环境经济及可持续性分析。根据主要研究结果，当发动机使用生物燃料时，燃烧排放的质量流测得为4.547千克/秒。对于使用喷气煤油的情况，比油耗和比推力分别确定为0.13千克/千牛·秒和147.81千牛·秒/千克，而对于使用生物燃料的情况，它们计算为0.15千克/千牛·秒和148.23千牛·秒/千克。如果选择生物燃料而非喷气煤油燃料，可以观察到发动机的能量效率性能提高了18.18%。发现喷气煤油使用条件下发动机的环境影响因子值为4.88，而生物燃料利用情况下为4.93。喷气煤油使用条件下的总一氧化碳排放量测得为336,672千克 - 一氧化碳/年，而生物燃料利用情况下估计为222,012千克 - 一氧化碳/年。此外，就选择生物燃料替代喷气煤油而言，发动机的环境破坏成本流，即发动机的环境经济参数，从59,254.27美元/年降至39,074.11美元/年。观察到对于喷气煤油和生物燃料利用情况，空气压缩机部件的可持续效率因子和㶲可持续性指数输出相同，分别为8.31和7.31。
