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Miniature vapour compression refrigeration system for electronic cooling.

Author(s) : WU Z., DU R.

Summary

Electronics cooling is a critical problem which is gaining much attention in line with the advances in computer technology. Currently, the power consumption of a high end CPU has reached 160 W while a GPU is even higher. As a result, traditional passive heat dispersion techniques are obsolete and new active cooling techniques become necessary. Among various new cooling approaches, the vapour compression refrigeration approach is the most effective. In this paper, a miniature vapour compression refrigeration system is proposed. The system includes a compressor, a cold plate evaporator, a condenser and a capillary tube. Unlike the conventional refrigeration system, the proposed system is designed to remove a large amount of heat from the cold plate evaporator. Due to space limitation in electronics cooling, micro-channel heat exchangers are to be used. The system would be packed in a box with the dimension of 320 x 137 x 35 mm. R134a is adopted as the working fluid after comparing with other two refrigerants. The paper presents a thermodynamic model to analyze the system performance. The simulation results show that the system has a cooling capacity of 200 W and a COP about 3. The future work includes optimizing the design and building a prototype.

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Pages: pp. 335-339

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Details

  • Original title: Miniature vapour compression refrigeration system for electronic cooling.
  • Record ID : 2009-2531
  • Languages: English
  • Source: ACRA-2009. The proceedings of the 4th Asian conference on refrigeration and air conditioning: May 20-22, 2009, Taipei, R.O.C.
  • Publication date: 2009/05/20

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