Analytical and Experimental Investigation on Performance of Pulse Detonation Turbine Engine
This paper is aimed to investigate real performance of pulse detonation turbine engine(PDTE)and reveal performance advantages of PDTE over traditional turbine engine.First of all,ideal thermodynamic cycle analysis was carried out to obtain the upper limit performance of both the PDTE cycle and Brayton cycle.Then a simplified analytical model and a dual tube PDTE system were built up to study the real performance of PDTE.The unsteady operating characteristics of the PDC were taken into consideration in the analytical model.Thrust measurements of the PDTE system were carried out under a self-aspirated mode.Thrust performance calculated by the simplified analytical model was compared with experimental data to verify the reliability of the simplified analytical model.Whats more,the measured specific thrust of the PDTE system was compared with that obtained from ideal thermodynamic cycle analysis.The results indicated that the ideal PDTE performance was much better than the traditional turbine engine performance based on Brayton cycle.The dual tube PDTE system could successfully operated at frequencies from 10Hz to 20Hz under the self-aspirated mode,indicating the feasibility of replacing the standard constant pressure combustor(CPC)with multiple pulsed detonation chambers(PDCs)in traditional turbine engine.The measured thrust performance of the PDTE system was consistent with the thrust data calculated by the simplified analytical model.The simplified analytical model was reliable when it was used for quick performance estimation of PDTE.The specific thrust of the PDTE system was higher than that of ideal Brayton cycle.When an ejector was used for thrust augmentation,the thrust and specific thrust could be largely increased.It proves the performance advantages of PDTE over traditional turbine engine experimentally for the first time.
Pulse detonation turbine engine Pulse detonation combustor Thermodynamic cycle analysis Analytical model Experimental investigation Performance
Lu Jie Zheng Longxi Qiu hua Xu Zeyang Duan Xiaoyao
School of Power and Energy,Northwestern Polytechnical University,Xian 710072,China
国际会议
The 5th International Symposium on Jet Propulsion and Power Engineering(第五届喷气推进与动力工程国际会议)
北京
英文
1-12
2014-09-15（万方平台首次上网日期，不代表论文的发表时间）