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Effect of working fluid on the performance of a miniature heat pipe system for cooling desktop processor

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Abstract

The heat transfer performance of a miniature heat pipe system (MHPS) used for cooling a desktop computer processor is presented in this paper. The MHPS consists of 6 parallel cylindrical miniature heat pipes (MHPs) which are connected to a copper block at the evaporator section and which are provided with 15 parallel perpendicular copper sheets at the condenser section, used as external cooling fins. Acetone and ethanol are used as working fluids. As heat source a processor is employed which is attached to the copper block. Heat transfer characteristics of the individual MHPs and the complete MHPS using the two working fluids are experimentally determined. The results show that the maximum and steady state temperature of the processor has been significantly reduced by using MHPs with acetone, more than with ethanol, instead of a conventional finned aluminum heat sink with cooling fan. Additional use of a fan results in a much lower processor temperature for both working fluids.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Bangladesh University of Engineering and Technology (BUET), Dhaka, 1000, Bangladesh

    Ahmed Imtiaz Uddin & Chowdhury Md. Feroz

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  1. Ahmed Imtiaz Uddin
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  2. Chowdhury Md. Feroz
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Correspondence to Ahmed Imtiaz Uddin.

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Uddin, A.I., Feroz, C.M. Effect of working fluid on the performance of a miniature heat pipe system for cooling desktop processor. Heat Mass Transfer 46, 113–118 (2009). https://doi.org/10.1007/s00231-009-0549-y

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