The necessity for an efficient thermal management system covering large areas is growing rapidly with the push toward more electric systems. A significant amount of research over the past 2 decades has conclusively proved the suitability of jet, droplet, or spray impingement for high heat flux cooling. However, all these research consider small heat source areas, typically about a few . Can a large array of impingement pattern, covering a much wider area, achieve similar heat flux levels? This article presents liquid microjet array impingement cooling of a heat source that is about two orders of magnitude larger than studied in the previous works. Experiments are carried out with 441 jets of de-ionized water and a dielectric liquid HFE7200, each diameter. The jets impinge on a area surface, in free surface and confined jet configurations. The average heat transfer coefficient values of the present experiment are compared with correlations from the literature. While some correlations show excellent agreement, others deviate significantly. The ensuing discussion suggests that the post-impingement liquid dynamics, particularly the collision between the liquid fronts on the surface created from surrounding jets, is the most important criterion dictating the average heat transfer coefficient. Thus, similar thermal performance can be achieved, irrespective of the length scale, as long as the flow dynamics are similar. These results prove the scalability of the liquid microjet array impingement technique for cooling a few area to a few hundred area.
Skip Nav Destination
e-mail: abhunia@teledyne.com
Article navigation
Technical Briefs
On the Scalability of Liquid Microjet Array Impingement Cooling for Large Area Systems
Avijit Bhunia,
e-mail: abhunia@teledyne.com
Avijit Bhunia
Teledyne Scientific Company
, 1049 Camino Dos Rios, Thousand Oaks, CA 91360
Search for other works by this author on:
C. L. Chen
C. L. Chen
Teledyne Scientific Company
, 1049 Camino Dos Rios, Thousand Oaks, CA 91360
Search for other works by this author on:
Avijit Bhunia
Teledyne Scientific Company
, 1049 Camino Dos Rios, Thousand Oaks, CA 91360e-mail: abhunia@teledyne.com
C. L. Chen
Teledyne Scientific Company
, 1049 Camino Dos Rios, Thousand Oaks, CA 91360J. Heat Transfer. Jun 2011, 133(6): 064501 (7 pages)
Published Online: March 2, 2011
Article history
Received:
February 18, 2010
Revised:
January 10, 2011
Online:
March 2, 2011
Published:
March 2, 2011
Citation
Bhunia, A., and Chen, C. L. (March 2, 2011). "On the Scalability of Liquid Microjet Array Impingement Cooling for Large Area Systems." ASME. J. Heat Transfer. June 2011; 133(6): 064501. https://doi.org/10.1115/1.4003532
Download citation file:
Get Email Alerts
Cited By
On Prof. Roop Mahajan's 80th Birthday
J. Heat Mass Transfer
Thermal Hydraulic Performance and Characteristics of a Microchannel Heat Exchanger: Experimental and Numerical Investigations
J. Heat Mass Transfer (February 2025)
Related Articles
Microelectromechanical System-Based Evaporative Thermal Management of High Heat Flux Electronics
J. Heat Transfer (January,2005)
A Comparative Study of Cooling of High Power Density Electronics Using Sprays and Microjets
J. Heat Transfer (January,2005)
Heat Transfer of Impacting Water Mist on High Temperature Metal Surfaces
J. Heat Transfer (February,2003)
Novel Jet Impingement Cooling Geometry for Combustor Liner Backside Cooling
J. Thermal Sci. Eng. Appl (June,2009)
Related Proceedings Papers
Related Chapters
Numerical Simulation of Nucleate Spray Cooling: Effect of Droplet Impact on Bubble Growth and Heat Transfer in a Thin Liquid Film
Inaugural US-EU-China Thermophysics Conference-Renewable Energy 2009 (UECTC 2009 Proceedings)
Control and Operational Performance
Closed-Cycle Gas Turbines: Operating Experience and Future Potential
Key Technology of Interactive Music Game Installation based on Arduino
International Conference on Control Engineering and Mechanical Design (CEMD 2017)