42_2
Cooling and heating of the fluid in the cylindrical volume
Article history: Received 2 October 2021, Received in revised form 16 November 2021, Accepted 25 November 2021, Available online 28 November 2021
pages: 15-26
Author/Authors
Stanislav Tkachenko, Olga Vlasenko, Nataliia Rezydent, Dmytro Stepanov, Nataliia Stepanova
Abstract
Experimental studies of the non-stationary heat exchange in the system «environment I – body II» have been carried out. It is established that in the body II, which consists of the fluid and thin-walled metal envelope, the characteristic features of the regular thermal mode occur, i.e., cooling (heating) rate of the body II- m = const; heat transfer coefficient between the water (environment I) and body II is practically stable α1 = const; uneven temperatures distribution coefficient in the body II ψ = const. This new notion of the heat transfer regularities in the body II is planned to apply for further development of the experimental-calculation method for the forecasting of the heat exchange intensity in the compound fluid media with limited information regarding thermophysical and rheological properties.
DOI: https://doi.org/10.32933/ActaInnovations.42.2
Keywords
non-stationary heat exchange; regular thermal mode; cooling (heating) rate; heat transfer coefficient; uneven temperatures distribution coefficient
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