NDLI: High Performance Heat Storage and Dissipation Technology

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Park, Chanwoo Kwang, J. Kim Gottschlich, Joseph Leland, Quinn
Copyright Year	2005
Abstract	High power solid state laser systems operating in a pulse mode dissipate the transient and excessively large waste heat from the laser diode arrays and gain material. The heat storage option using Phase Change Materials (PCMs) has been considered to manage such peak heat loads not relying on oversized systems for real-time cooling. However, the PCM heat storage systems suffer from the low heat storage densities and poor thermal conductivities of the conventional PCMs, consequently requiring large PCM volumes housed in thermal conductors such as aluminum or graphite foams. We developed a high performance metal hydride heat storage system for efficient and passive acquisition, storage, transport and dissipation of the transient, high heat flux heat from the high power solid state laser systems. The greater volumetric heat storage capacity of metal hydrides than the conventional PCMs can be translated into very compact systems with shorter heat transfer paths and therefore less thermal resistance. Other exclusive properties of the metal hydride materials consist of fast thermal response and active cooling capability required for the precision temperature control and transient high heat flux cooling. This paper discusses the operating principle and heat storage performance results of the metal hydride heat storage system through system analysis and prototype testing. The results revealed the superior heat storage performance of the metal hydride system to a conventional PCM system in terms of temperature excursion and system volume requirement.
Sponsorship	Heat Transfer Division
Starting Page	615
Ending Page	621
Page Count	7
File Format	PDF
ISBN	0791842215
DOI	10.1115/IMECE2005-82313
e-ISBN	0791837696
Volume Number	Heat Transfer, Part A
Conference Proceedings	ASME 2005 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2005-11-05
Publisher Place	Orlando, Florida, USA
Access Restriction	Subscribed
Subject Keyword	Directed energy weapon Metal hydride Phase change material Cooling Heat pipe Heat storage Solid state laser Phase change materials Energy dissipation Metals
Content Type	Text
Resource Type	Article

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