Interphase heat and mass transfer during the cryogen long-term storage in a tank
Published: 25.03.2025
Authors: Myakochin A.S., Tlevtsezhev V.V.
Published in issue: #3(159)/2025
DOI: 10.18698/2308-6033-2025-3-2430
Category: Mechanics | Chapter: Mechanics of Liquid, Gas, and Plasma
The paper proposes a physical mathematical model for computing the in-tank thermophysical processes based on assumptions of the missing temperature stratification and thermodynamic equilibrium between the fuel component liquid phase and its vapors. The temperature and pressure spatial homogeneities are the main prerequisites for considering processes within the framework of thermodynamics; therefore, this model could be called the thermodynamic. The paper also assumes that the component vapors obey the equation of the ideal gas state, and the liquid is incompressible. This model from the mathematical point of view is a system of algebraic and ordinary differential equations describing alteration in temperature, pressure and other thermophysical characteristics over time. The model under consideration is used to identify the heat exchange parameters in a cryogenic tank during the long-term drainless storage. The proposed model could also be adapted to describe many thermophysical processes in tanks at various stages of operation.
EDN SLAWJR
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