Heat Conduction of Superheated Mixtures: Relationship with Excess Volume

The article elucidates the characteristic features of heat transfer from a fast-response heater probe to a pulse-heated liquid solution in the heat conduction mode. The heating time was 10 ms; the heat flux density increase was up to 10 MW/m 2  by order of magnitude. The experiments confirmed the co...

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Bibliographic Details
Published in:Journal of engineering thermophysics 2022-03, Vol.31 (1), p.19-31
Main Authors: Povolotskiy, I. I., Volosnikov, D. V., Skripov, P. V.
Format: Article
Language:English
Subjects:
Conduction heating
Conductive heat transfer
Fluid- and Aerodynamics
Flux density
Heat
Heat flux
Liquid-liquid equilibrium
Liquid-vapor equilibrium
Physics
Physics and Astronomy
Thermal resistance
Thermodynamics
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Summary:The article elucidates the characteristic features of heat transfer from a fast-response heater probe to a pulse-heated liquid solution in the heat conduction mode. The heating time was 10 ms; the heat flux density increase was up to 10 MW/m 2  by order of magnitude. The experiments confirmed the conclusion by L.P. Filippov on the appearance of additional (with respect to the additive values) thermal resistance of liquid with the addition of a second component to it. The verification of the conclusion based on a new material relying on the substantial expansion of the range of variation of the excess volume and temperature, including in not fully stable states, briefly superheated relative to the temperature of liquid-vapor and/or liquid-liquid equilibrium. The results indirectly indicate the excess volume at the initial temperature of the solution as a key factor determining the value of its additional thermal resistance in the superheated state.
ISSN:1810-2328
1990-5432
DOI:10.1134/S1810232822010039