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Alexander S. Afanasev
Professor, Ph.D.
Saint Petersburg Mining University
Personal or department link
Professor, Ph.D.
Personal or department link
Saint Petersburg Mining University
Saint Petersburg
Russia
166
Total cited
6
Hirsch index

Articles

Electromechanics and mechanical engineering
  • Date submitted
    2020-06-11
  • Date accepted
    2020-06-11
  • Date published
    2020-06-30

Mathematical model of the liquefied methane phase transition in the cryogenic tank of a vehicle

In order to increase the efficiency of using vehicles (VEH) in mining and quarrying conditions, it is necessary to improve the components of gas equipment (cryogenic tank, gas nozzles, fuel supply cryogenic tubes, etc.) for supplying liquefied natural gas to the engine, as well as storage of liquid methane in a cryogenic tank with a long service life. For this, it is necessary to consider the process of heat and mass transfer of liquefied natural gas in a two-phase liquid-gas medium, taking into account the phase transition in the closed volume of the cryogenic tank under consideration. The article presents a model of unsteady heat and mass transfer of a two-phase liquefied methane medium in a developed two-tank cryogenic tank using a Cartesian coordinate system with fractional control volumes in space. The experimental data confirm the efficiency of using a cryogenic tank on the VEH platform, in which the run on liquefied methane compared to standard fuels is tripled, the shelf life of liquefied gas in the proposed cryogenic tank is 2-2.5 times longer than in the standard one.

Read more
Otari N. Didmanidze, Alexander S. Afanasev, Ramil T. Khakimov (2020) Mathematical model of the liquefied methane phase transition in the cryogenic tank of a vehicle. Journal of Mining Institute. Vol 243. p. 337. DOI: 10.31897/pmi.2020.3.337