Two-phase flow boiling in microchannels is one of the most promising cooling technologies able to cope with high heat fluxes generated by the next generation of central processor units (CPU). If flow boiling is to be used as a thermal management method for high heat flux electronics it is necessary to understand the behaviour of a non-uniform heat distribution, which is typically the case observed in a real operating CPU. The work presented is an experimental study of two-phase boiling in a multi-channel silicon heat sink with non-uniform heating, using water as a cooling liquid. Thin nickel film sensors, integrated on the back side of the heat sinks were used in order to gain insight related to temperature fluctuations caused by two-phase flow instabilities under non-uniform heating. The effect of various hotspot locations on the temperature profile and pressure drop has been investigated, with hotspots located in different positions along the heat sink. It was observed that boiling inside microchannels with non-uniform heating led to high temperature non-uniformity in transverse direction.
Skip Nav Destination
ASME 2009 7th International Conference on Nanochannels, Microchannels, and Minichannels
June 22–24, 2009
Pohang, South Korea
Conference Sponsors:
- Nanotechnology Institute
ISBN:
978-0-7918-4349-9
PROCEEDINGS PAPER
Experimental Investigation of Non-Uniform Heating on Flow Boiling Instabilities in a Microchannels Based Heat Sink
D. Bogojevic,
D. Bogojevic
University of Edinburgh, Edinburgh, UK
Search for other works by this author on:
K. Sefiane,
K. Sefiane
University of Edinburgh, Edinburgh, UK
Search for other works by this author on:
A. J. Walton,
A. J. Walton
University of Edinburgh, Edinburgh, UK
Search for other works by this author on:
G. Cummins,
G. Cummins
University of Edinburgh, Edinburgh, UK
Search for other works by this author on:
D. B. R. Kenning,
D. B. R. Kenning
Brunel University, Uxbridge, Middlesex, UK
Search for other works by this author on:
T. G. Karayiannis
T. G. Karayiannis
Brunel University, Uxbridge, Middlesex, UK
Search for other works by this author on:
D. Bogojevic
University of Edinburgh, Edinburgh, UK
K. Sefiane
University of Edinburgh, Edinburgh, UK
A. J. Walton
University of Edinburgh, Edinburgh, UK
H. Lin
University of Edinburgh, Edinburgh, UK
G. Cummins
University of Edinburgh, Edinburgh, UK
D. B. R. Kenning
Brunel University, Uxbridge, Middlesex, UK
T. G. Karayiannis
Brunel University, Uxbridge, Middlesex, UK
Paper No:
ICNMM2009-82121, pp. 59-67; 9 pages
Published Online:
September 21, 2010
Citation
Bogojevic, D, Sefiane, K, Walton, AJ, Lin, H, Cummins, G, Kenning, DBR, & Karayiannis, TG. "Experimental Investigation of Non-Uniform Heating on Flow Boiling Instabilities in a Microchannels Based Heat Sink." Proceedings of the ASME 2009 7th International Conference on Nanochannels, Microchannels, and Minichannels. ASME 2009 7th International Conference on Nanochannels, Microchannels and Minichannels. Pohang, South Korea. June 22–24, 2009. pp. 59-67. ASME. https://doi.org/10.1115/ICNMM2009-82121
Download citation file:
6
Views
0
Citations
Related Proceedings Papers
Related Articles
High-Flux Thermal Management With Supercritical Fluids
J. Heat Transfer (December,2016)
Computational Fluid Dynamics Modeling of Flow Boiling in Microchannels With Nonuniform Heat Flux
J. Heat Transfer (January,2018)
Microelectromechanical System-Based Evaporative Thermal Management of High Heat Flux Electronics
J. Heat Transfer (January,2005)
Related Chapters
Thermoelectric Coolers
Thermal Management of Microelectronic Equipment
Scope of Section I, Organization, and Service Limits
Power Boilers: A Guide to the Section I of the ASME Boiler and Pressure Vessel Code, Second Edition
Thermal Interface Resistance
Thermal Management of Microelectronic Equipment