DESIGN AND EXPERIMENTAL STUDY OF A MINIATURE VAPOUR COMPRESSION REFRIGERATION SYSTEM FOR CPU COOLING

Mechanical Engineering

The chip power continuously increases traditional passive heat dissipation techniques used in the old version but now new active cooling techniques are arising. Various new active cooling techniques, the Vapor Compression Refrigeration (VCR) system is the leading technology use in CPU. This project presents a miniature VCR system for CPU cooling. The dimension of the system is 300 × 230 ×70 mm3and its cooling capacity is 300 W. It includes a commercial miniature compressor, a capillary tube, a condenser, and an evaporator. The system is tested systematically by experiments. The results indicate that the temperature of the evaporator can be maintained at about 10̊C for hours as required in CPU cooling. A small refrigeration VCR system for cooling computer system components CPU is evaluated. The refrigeration system uses a miniature reciprocating vapor compression compressor system. Due to space limitations in some high-performance computer servers, a miniature refrigeration system composed of a compressor; capillary tube, compact systems are used. In addition, reliability, availability, and serviceability discussion of the proposed CPU-cooling refrigeration solution is presented. The results show that the new technology not only overcomes many shortcomings of the traditional fan-cooled systems but also has the capacity of increasing the cooling system's coefficient of performance COP.

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