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Thermodynamic Analysis of the Limit Cycles of a Device for Gas Flow Stratification


For the first time the limit conditional cycles in P-V and T-S coordinates of the device implementing the stratification effect (TL) for subsonic and supersonic flow regimes have been presented. The analysis of energy efficiency of heat exchange processes in TL on the basis of the developed limit cycles is carried out. As one of the integrative criteria of the device functioning the indicator of power exchange efficiency of the flow machine is offered.

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  1. 1.

    Leontiev, A.I., Gas-DynamicMethod of Energy Separation inGas Flows, Teplofiz. Vys. Temp., 1997, vol. 35, no. 1, pp. 157–159.

    MathSciNet  Google Scholar 

  2. 2.

    Leontiev, A.I., Method of Temperature Stratification of the Gas and Device for Its Implementation (Leontiev’s Tube), Patent 2106581, Kl.MPK-6: F25B9/

  3. 3.

    Burtsev, S.A. and Leontiev, A.I., Study of the Influence of Dissipative Effects on the Temperature Stratification in Gas Flows (Review), High Temp., 2014, vol. 52, no. 2, pp. 297–307.

    Article  Google Scholar 

  4. 4.

    Burtsev, S.A., ExploringWays to Improve Efficiency of Gasdynamic Energy Separation, High Temp., 2014, vol. 52, no. 1, pp. 12–18.

    Article  Google Scholar 

  5. 5.

    Zditovets, A.G. and Titov, A.A., Experimental Study of the Gas-Dynamic Method of Machineless Energy Separation of Air Flows, Tepl. Prots. Tekhn., 2013, no. 9, pp. 391–397.

    Google Scholar 

  6. 6.

    Volov, V.T., Limit Energy Theorem for the Flow Rate Thermal Machine, Dokl. Akad. Nauk, 2001, vol. 381, no. 4, pp. 475–478.

    MATH  Google Scholar 

  7. 7.

    Volov, V.T., Analysis of the Thermodynamic Efficiency of Flow Process Conversion in Flow Rate Machines, Teploenerg., 2003, no. 12, pp. 52–56.

    Google Scholar 

  8. 8.

    Volov, V.T., Analysis of the Energy Efficiency of Gas Flow Machines, Proc. 4th Int. Conf. Heat and Mass Transfer and Hydrodynamics in Swirled Flows, Moscow: Moscow Energy Institute, 2001.

    Google Scholar 

  9. 9.

    Vulis, L.A., Termodinamika gazovykh potokov (Thermodynamics of Gas Flows), Moscow: Gosenergoizdat, 1950.

    Google Scholar 

  10. 10.

    Zel’dovich, Ya.B. and Raizer, Yu.B., Fizika udarnykh voln i vysokotemperaturnykh gidrodinamicheskikh yavlenii (Physics of Shock Waves and High-Temperature Hydrodynamic Phenomena), Moscow: Nauka, 1966.

    Google Scholar 

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Correspondence to A. I. Leontiev.

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Leontiev, A.I., Volov, V.T., Burtsev, S.A. et al. Thermodynamic Analysis of the Limit Cycles of a Device for Gas Flow Stratification. J. Engin. Thermophys. 27, 541–544 (2018).

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