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Download the latest issue of Qpedia. Key topics featured in this issue are:

  • Conduction-Convection Cooling Solution for 3D Stacked Electronics
  • Thermal Characteristics of Wickless Vapor Chambers
  • Phase Change Materials
  • Cooling 3D Stacked Die Packages
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Table of Contents - January 2011

Current Issues

January 2011

Features

 

 

Bendable Heat Pipes

Flexible and pre-bent heat pipes have been studied and successfully demonstrated. Bendable heat pipes, which can be bent after fabrication, as needed, are novel devices for thermal management. The effects of bending on temperature drop, performance and performance limits are investigated.

 

Dense Spray Cooled DC-DC Converter

An evaporative spray cooling solution enables an 8 kW chassis with 20 slots populated with high power dual server blades. An equivalent sized air cooled system would result in a 40 slot solution for an 8kW chassis. In addition to the larger size, it should also be noted that the air cooled system is subjected to derating.                       

 

Liquid Cooling Using Boiling and Condensation

To understand their effects on thermal performance, an analysis was made of boiling and condensation thermal resistance. The study included the major parameters that affect the performance of boiling and condensation, including module orientation, surface coating and working fluid charge ratio.

           

Thermal Management in Automotives

All the heat generated in automobile components must be removed by the motion of air in the compartment. The design of more aerodynamic body shapes results in less available grilled area and under hood space. This lack of space for airflow requires that the fan system create more pressure and that the overall system include more efficient heat exchangers.

 

Cooling News

New products, services and events from around the industry.