Effect of recooling cycle on performance of hydrogen fueled scramjet

Qin, Jiang; Zhang, S.L.; Bao, Wen; Zhang, L.; Zhou, Weixing

doi:10.1016/j.ijhydene.2012.09.067

Cited by 13 publications

(2 citation statements)

References 13 publications

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“…Or using the gas turbine as key component, a variety of advanced power cycle can be built up [7] [8]. And these cycle can be efficiently operated in a clean power generation through CO2 capture and/or NOx elimination [9].…”

Section: Introductionmentioning

confidence: 99%

Study of the Hydrogen-Steam Turbine Composite Cycle

Zang

Zhong

2015

Procedia CIRP

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It is proposed a new type of the thermodynamic cycle in this article. The cycle is mainly composed by Hydrogen Generator (HG), Hydrogen Turbine (HT), Hydrogen-Oxygen Combustor (HOC) and Steam Turbine (ST). The pure hydrogen is generated in HG at high pressure and is heated up. The hydrogen with high pressure and high temperature develops power by flowing through HT. The hydrogen passed through HT is burned with pure oxygen in HOC, and the generated steam provides power by expansion in ST sequentially. Different from the conventional Combined Cycle (CC), this thermodynamic cycle is series-wound by hydrogen turbine and steam turbine. Based on these features this cycle is called as the Hydrogen-Steam Turbine Composite Cycle (HSTCC) in this article. It is indicated that HSTCC has a higher efficiency. It should be a competitive power generating system using the sophisticated turbine technique for hydrogen energy in future.

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Section: Introductionmentioning

confidence: 99%

Study of the Hydrogen-Steam Turbine Composite Cycle

Zang

Zhong

2015

Procedia CIRP

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“…In addition, theoretical analysis provides a quick and reliable approach to assess scramjet. Based on above three methods, lots of critical techniques and problems, such as combustion oscillations in supersonic combustor, combustion mode analysis, re-cooled cycle and thermal management system of hydrogenfueled scramjet, were investigated in recent years [1][2][3][4]. Inevitably, the research of scramjet will be more and more intensive and extensive in the future.…”

Section: Introductionmentioning

confidence: 99%

Effects of Air Vitiation on Scramjet Performance Based on Thermodynamic Cycle Analysis

Chang¹

2014

J Aeronaut Aerospace Eng

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The influences of air vitiation on scramjet performance were studied in this paper based on thermodynamic cycle analysis. By the aid of NASA Glenn's computer program Chemical Equilibrium with Applications (CEA), parameters of vitiated air at combustion heater exit could be calculated. Based on thermodynamic cycle analysis, scramjet performance, including internal thrust, specific thrust, and specific impulse, were analyzed with 9 simulation criterions under Mach 4.5 and 6.5 conditions, respectively. The results show that, (1) specific heat and specific heat ratio of vitiated air are mainly affected by combustion heating medium, and also have minor connection with temperature criterions. Moreover, choosing different simulation criterions influences the temperature or pressure between clean air and vitiated air significantly; (2) the internal thrust and specific thrust of scramjet with hydrogen heated airstream are greater than that of scramjet with alcohol and kerosene heated airstream; (3) matching static pressure and dynamic pressure will obtain higher internal thrust compared to total pressure, and the effect of pressure criterions on internal thrust is more remarkable than temperature criterions. On the other hand, these findings proved that the method based on thermodynamic cycle analysis is a simple, dependable, and effective approach to evaluate the scramjet performance affected by air vitiation.

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