2015 1(16)

Back to table of content

   Short abstract



129 - 132





Click to get extended abstract

Download paper: [RU]





Nakoryakov V.E., Mezentsev I.V., Meleshkin A.V., Elistratov D.S., Mezentseva N.N.

Institute of Thermophysics SB RAS, Novosibirsk, Russia


Nakoryakov, V.E., Mezentsev, I.V., Meleshkin, A.V., Elistratov, D.S. and Mezentseva, N.N., (2015) Production of freon R134A gas hydrate by injecting liquid nitrogen into water, Modern Science: Researches, Ideas, Results, Technologies, Iss. #1(16), PP. 129 - 132.


phase transition; boiling; liquid nitrogen; gas hydrates; cryogenic liquid


This paper presents continuation of experimental investigations of hydrodynamic processes resulting from the injection of cryogenic liquid into water. The urgency of this problem is caused by studying the method of gas hydrates production by the influence of high-amplitude pressure pulses on water saturated with the bubbles of Freon R134a. The advantages of this method over others are as follows: intensification of gas hydrate formation, which occurs due to a significant increase in the interface by crushing Freon bubbles in a wave, relative to the movement of other gas bubbles in liquid, turbulization of liquid motion by the shock wave, and compensation of heat release during hydrate formation due to heat absorption at liquid nitrogen boiling. This method allows skipping the volume-diffusion stage of the gas hydrate growth and an order gain in the rate of intensification of hydrate formation in comparison with the analogues. An optical check of registration of injection of liquid nitrogen jet into water saturated with bubbles showed the presence of R134a gas hydrate during the process. These results represent a new stage in studying the shock-wave method of gas hydrate production.


  1. Clarke H., Martinez-Herasme A., Crookes R., Wen D.S. (2010). "Experimental study of jet structure and pressurisation upon liquid nitrogen injection into water", International journal of multiphase flow, Vol. 36, № 4, pp. 940-949.

  2. Wen D.S., Chen H.S., Ding Y.L., Dearman P. (2006). "Liquid nitrogen injection into water: pressure build-up and heat transfer", Cryogenics, Vol. 46, pp. 740-748.

  3. Clarke H., Crookes R, Wen D.S., Dearman P., Aryes M. (2009) "Development of a Liquid Nitrogen Fuelled Cryogenic Engine", In: TAE 7th International Colloquium Fuels, pp. 649-656.

  4. C.A. Ordonez.M.C. Plummer, R.F. Reidy. Cryogenic heat engines for powering zero emission vehicles. 2001, ASME IMEC, PID-25620.

  5. J. Dahlsveen, R. Kristoffersen, L. Saetran. Jet mixing of cryogen and water. In: 2nd International Symposium Turbulence and Shear Flow Phenomena. 2001, Vol.2, pp. 329-334.

  6. V.E. Nakoryakov, A.N. Tsoi, I.V. Mezentsev and A.V. Meleshkin. Explosive Boiling of Liquid Nitrogen Jet in Water // Journal of Engineering Thermophysics. 2014, Vol.23. № 1, pp. 1-8.

  7. Dontsov, V.E., Chernov, A.A. (2009). "Dilution and hydrate forming process in shock wave in the gas-liquid medium with gas mixture bubbles", Doklady RAN, Vol. 425, No. 6, pp. 764-768.

  8. Nakoryakov, V.E., Dontsov, V.E., Chernov, A.A. (2006). "Formation of gas hydrates in the gas-liquid mixture behind the shock wave", Doklady RAN, Vol.411, No. 2, pp. 190-193.



© SPIC "Kappa", LLC 2009-2016