Proceedings ArticleDOI
Optimum Design of Heat Sinks Using Non-Isotropic Graphite Composites
Gary Chen,Joe Capp,George Getz,David Flaherty,Julian Norley +4 more
- pp 489-494
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TLDR
In this article, the influence of thermal conductivity on the thermal performance of graphite heat sinks is investigated, and the efficient ways to utilize graphite composite materials, which can be expected to play an important role in future electronics cooling applications are discussed.Abstract:
Recent developments in natural graphite composites by GrafTech International, Ltd. have led to novel highly conductive and lightweight materials with thermally non-isotropic structures [1]. The in-plane and out-of-plane thermal conductivities for such materials differ by a factor of up to 50. The non-isotropy in thermal conductivities is found to influence heat dissipation in different ways. This paper investigates the influence of thermal conductivity on the thermal performance of graphite heat sinks. In addition to addressing technology challenges encountered in design and optimization of heat sinks, this paper also discusses the efficient ways to utilize graphite composite materials, which can be expected to play an important role in future electronics cooling applications.© 2003 ASMEread more
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Journal ArticleDOI
Heat transfer and entropy generation in a two-dimensional orthotropic convection pin fin
TL;DR: In this paper, the authors used a two-dimensional heat conduction model to obtain the thermal performance and entropy generation in an orthotropic pin fin used in advanced light weight heat sinks.
Journal ArticleDOI
Light Weight High Performance Thermal Management With Advanced Heat Sinks and Extended Surfaces
Tunc Icoz,Mehmet Arik +1 more
TL;DR: In this paper, a combined computational and experimental investigation is performed on various advanced heat sink materials and manufactured prototypes and a composite figure of merit is proposed for measuring mass effective cooling capabilities of heat sinks.
Journal ArticleDOI
On the Conduction and Convection Heat Transfer From Lightweight Advanced Heat Sinks
M. Baris Dogruoz,Mehmet Arik +1 more
TL;DR: In this article, the authors investigated the thermal performance of anisotropic advanced materials in natural convection environments and compared them with traditional engineering materials under the same conditions, and demonstrated that the total weight of the system may be reduced drastically with the use of advanced materials relative to the most commonly used heat sink materials at the same thermal performance.
Proceedings ArticleDOI
Comparative thermal performance evaluation of graphite/epoxy fin heat sinks
TL;DR: In this paper, a hybrid graphite epoxy heat sink has been developed, which incorporates graphite/epoxy fins bonded to a copper base, and the effects of fin material and bonding techniques on thermal performance were examined.
Dissertation
Natural graphite sheet heat sinks for power electronics
TL;DR: In this article, a multi-disciplinary investigation of using natural graphite sheet (NGS) for heat sink applications is presented with focus on thermal performance, electromagnetic performance, reliability, cost, energy efficiency, and environmental impact.