An experimental study of heat pipe performance using nanofluids

Mohamed I. Hassan, Pawan K. Singh, Waka Tesfai, Youssef Shatilla

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


Heat pipe cooling is widely used in computer processors. Advances in microprocessor technology have resulted in reduced heat transfer surface area. Maintaining an efficient cooling process is therefore challenging. The main goal of this experimental study is to perform a parametric study on heat pipe performance using nanofluids. Nanofluids of 1 and 3 vol% of alumina nanoparticles of 20-50 nm diameters in deionized water versus deionized water as a base fluid were considered in the present study. The nanofluids are prepared in our laboratory using two-step method. The nanofluids thermal properties are measured to confirm the properties enhancement that could indicate a corresponding performance enhancement of the heat pipe. A 10 mm inner diameter, 200 mm long brass tube with 50 mm long evaporator, and 50 mm long water cooled condenser were used. Heat pipe wall temperature is reduced with nanofluids as is the temperature difference between the evaporator and condenser. The thermal diffusivity of the nanofluids is increased by 10%. The pipe pressure in case of deionized water was higher than the corresponding one for the nanofluids by 20-32%.

Original languageBritish English
Pages (from-to)225-229
Number of pages5
JournalInternational Journal of Green Energy
Issue number3
StatePublished - 4 Mar 2015


  • Efficient cooling
  • Heat pipe
  • Nanofluids
  • Nanotechnology


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