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A closed-loop electronics cooling by implementing single-phase impinging jet and a mini-channel heat exchanger.

Author(s) : BINTORO J. S., AKBARZADEH A., MOCHIZUKI M.

Type of article: Article

Summary

This paper reports the authors' work in the design and testing of a closed-loop electronics cooling system that adopts bi-technologies: single phase impinging jet and a mini-channel heat exchanger. The system has the cooling capacity of 200 W over a single chip with a hydraulic diameter of 12 mm. The equivalent heat flux is 177 W/cm2. The cooling system maintains the chip's surface temperature below 95 °C maximum when the ambient temperature is 30 °C. De-ionized water is the working fluid of the system. For the impinging jet, two different nozzles are designed and tested. The hydraulic diameters are 0.5 and 0.8 mm. The corresponding volume flow rates are 280 and 348 mL/min. The mini-channel heat exchanger has 6 copper tubes with the inner diameter of 1.27 mm and the total length of about 1 m. The cooling system has a mini diaphragm pump and a DC electric fan with the maximum power consumptions of 8.4 and 0.96 W respectively. The COP of the system is 21.4.

Details

  • Original title: A closed-loop electronics cooling by implementing single-phase impinging jet and a mini-channel heat exchanger.
  • Record ID : 2006-0673
  • Languages: English
  • Source: Applied Thermal Engineering - vol. 25 - n. 17-18
  • Publication date: 2005/12

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