Onset of Heterogeneous Nucleation of HFE-7100 on a Rapidly Heated Micro-Heater at One Atmosphere

Amiav Lankry*, Alex Koyfman, Yevgeni Estrin, Rony Reuven, Herman Haustein, Gennady Ziskind, Tali Bar-Kohany*

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

Abstract

The present study deals with the onset of nucleate boiling (ONB) of a superheated liquid due to rapidly heated Micro-Heater (MH) at one atmosphere. A set of experimental results of ONB in HFE-7100 as a result of different heating rates will presented. There are very few studies and thus very scarce amount of data pertaining to rapid heating of HFE-7100 in the literature. In real liquids, namely liquids that are not specially treated for the removal of possible nucleation sites (such as dissolved gasses, suspended particles etc.), a high level of superheating may be obtained using high heating rates such that the liquid’s nucleation temperature is substantially higher than its saturation temperature. Prediction of superheat levels and nucleation temperatures under these conditions as a function of temperature change rate has not been possible with analytic tools up to recently. The present study aims at broadening the experimental data base, in order to gain more understanding on the ONB phenomenon due to rapid heating under various heating rates.

Original languageEnglish
StatePublished - 31 Aug 2021
Event15th Triennial International Conference on Liquid Atomization and Spray Systems, ICLASS 2021 - Edinburgh, United Kingdom
Duration: 29 Aug 20212 Sep 2021

Conference

Conference15th Triennial International Conference on Liquid Atomization and Spray Systems, ICLASS 2021
Country/TerritoryUnited Kingdom
CityEdinburgh
Period29/08/212/09/21

Funding

FundersFunder number
PAZY Foundation

    Keywords

    • Experiment
    • Heterogeneous nucleation
    • Micro-heater
    • ONB
    • Rapid heating

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