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Heat transfer under pulse heating of liquids: the case of solution with lower critical solution temperature.

Number: 1226

Author(s) : RUTIN S. B., SKRIPOV P. V.

Summary

Heat transfer enhancement problems had come to the forefront of thermophysical research. One of the approaches to this problem consists in the search for partially soluble additives to the liquid heat carrier and optimising the thermal conditions in which these additives provide a significant effect. In this report, the peculiarities of a thermal response of a solution of water and polypropylene glycol (PPG-425), having LCST, to powerful heat release are discussed. The method of controlled pulse heating of a wire probe was applied. An analysis of the values of the energy transferred from the probe to the substance has shown that these values for a solution with 20-30% content of PPG exceed the corresponding values for pure water by an order of magnitude. This result can serve as a basis for the search of a new generation of coolants for processes in which powerful heat generation is possible.

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Pages: 6

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Details

  • Original title: Heat transfer under pulse heating of liquids: the case of solution with lower critical solution temperature.
  • Record ID : 30027769
  • Languages: English
  • Subject: Technology
  • Source: IIR Rankine Conference 2020.
  • Publication date: 2020/07/31
  • DOI: http://dx.doi.org/10.18462/iir.rankine.2020.1226

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