Release Time:2021-03-15  Hits:

Indexed by: Journal Article

Date of Publication: 2021-01-10

Journal: EXPERIMENTAL HEAT TRANSFER

Volume: 33

Issue: 7

Page Number: 613-632

ISSN: 0891-6152

Key Words: Intermittent spray cooling; transient spray cooling; electronics cooling; critical heat flux

Abstract: Experiments were performed to investigate the transient cooling characteristics of intermittent spray cooling (ISC) in single-phase and nucleate-boiling regimes. The consumption of residual liquid in the non-injection period was confirmed via observations of the dynamic behavior through visualization experiments. The time variation of the surface heat transfer is relatively small in the single-phase regime and minimal in the initial nucleate-boiling regime. Further, ISC was considered as a process where the transient mass flow rate was specified by the characteristic time. This idea was successfully evaluated in the prediction of the critical heat flux in cryogen spray cooling.