Full Content is available to subscribers

Subscribe/Learn More  >

The Thermal Performance of Graphite Heat Spreaders in Radiant Panel Applications

[+] Author Affiliations
Martin D. Smalc, Julian Norley, John Schober, R. Andrew Reynolds, Brad Reis

GrafTech International Holdings Inc., Parma, OH

Paper No. IMECE2009-10263, pp. 1011-1018; 8 pages
  • ASME 2009 International Mechanical Engineering Congress and Exposition
  • Volume 9: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A, B and C
  • Lake Buena Vista, Florida, USA, November 13–19, 2009
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4382-6 | eISBN: 978-0-7918-3863-1
  • Copyright © 2009 by ASME


Hydronic radiant floor heating systems are recognized as an efficient means of heating residential and commercial buildings. These systems utilize water flowing in tubes to move thermal energy from a heat source to a radiant panel located beneath the floor of the room being heated. The efficiency of such systems depends on many factors but a major concern is the ability of the radiant panel to remove heat from the water tubes and spread it effectively across the floor. Conventional radiant panels use aluminum heat spreaders to do this. Much work has been done to determine the overall performance of rooms heated by radiant panels, but little work has been done to measure the thermal performance of heat spreaders in these panels. This paper describes the development of a test method, using thermal imaging of test panels, to measure the performance of these heat spreaders. This method is used to determine the thermal performance of commercially available aluminum heat spreaders and of advanced heat spreaders made from flexible graphite. Graphite heat spreaders have found wide acceptance in a variety of electronic applications including plasma and LED displays, laptop computers and cell phones. This paper also examines the thermal properties of graphite that make it attractive as a radiant panel heat spreader. The development of high thermal conductivity, flexible graphite spreaders for various radiant panel applications is described. These graphite heat spreaders improve the performance of radiant panel systems and allow the use of high efficiency, low temperature heat sources.

Copyright © 2009 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In