In this study, a novel high-performance engine cycle composed of 5 processes and including constant temperature process has been developed by using novel numerical methods and compared with the classical dual cycle. The results of the classical thermodynamic model demonstrated that the proposed cycle which has a constant temperature process is better in terms of thermal efficiency and dimensionless net work compared to the classical dual cycle. After the validation of superiority of the developed cycle over the classical dual cycle, performance investigations of the novel cycle engine have been carried out in terms of power, power density, destructed exergy, thermal efficiency, ecological coefficient of performance, effective ecological power density by developing a novel fuel-air cycle model. The influences of design and operational parameters such as cut-off ratio, compression ratio, cycle temperature ratio, equivalence ratio, engine speed, stroke length, cylinder bore, cylinder wall temperature, air intake temperature, pressure ratio, on the performance specifications have been numerically derived.

中文翻译：

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在改进的双循环上运行的发动机的性能调查和评估

本研究采用新的数值方法开发了一种由5个过程组成的包括恒温过程的新型高性能发动机循环，并与经典的双循环进行了比较。经典热力学模型的结果表明，与经典双循环相比，所提出的具有恒温过程的循环在热效率和无量纲净功方面更好。在验证了开发循环相对于经典双循环的优越性之后，对新型循环发动机进行了功率、功率密度、破坏火用、热效率、生态性能系数、有效生态功率密度等方面的性能研究。开发一种新的燃料-空气循环模型。