Abstract
The present flow boiling experiments are performed for deionized water mass fluxes, G=400–1000kg/m2s, imposed effective heat flux qeff″ ranging from 0W/cm2 to 80W/cm2 for three different microgap configurations having same inlet depth 200μm and gradually increasing exit depth 200μm, 300μm and 460μm to explore expanding microgap effect on heat transfer and pressure drop performances. High speed flow visualizations are conducted simultaneously along with experiments to explore the bubble behavior in expanding microgap heat sink. The results of this study show that expanding microgap maintains a more uniform wall temperature than straight microgap heat sink and also delays dryout phase. In addition, expanding microgap of exit depth 300μm performs best for both heat transfer and pressure drop performances among all configurations.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
