Open AccessHeat transfer and critical heat flux for two-phase immersion cooling of an inverter power module
Author(s) -
Ilya T' Jollyn,
Wim Beyne,
M. De Paepe
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2116/1/012007
Subject(s) - refrigerant , critical heat flux , heat flux , thermodynamics , heat transfer , boiling , materials science , nucleate boiling , heat transfer coefficient , boiling heat transfer , heat sink , nuclear engineering , mechanics , heat exchanger , physics , engineering
Heat transfer and critical heat flux measurement are reported for pool boiling cooling of the base plate of an inverter power module. Novec 649 is used as refrigerant. Heat fluxes up to 14.6 W/cm 2 were applied with refrigerant saturation temperatures of 36 °C, 41 °C and 46 °C. The measured boiling curves are comparable to those reported for similar refrigerants. The critical heat fluxes range from 12.1 W/cm 2 to 14.6 W/cm 2 , which corresponds within 10% to the correlation of Zuber. The critical heat flux is significantly lower than the highest heat fluxes expected from the power module, indicating that methods to increase the critical heat flux are needed to enable two-phase power module cooling.