Journal of Northeastern University Natural Science ›› 2016, Vol. 37 ›› Issue (2): 227-231.DOI: 10.12068/j.issn.1005-3026.2016.02.017

• Mechanical Engineering • Previous Articles     Next Articles

Numerical Simulation of Piston Heat Transfer Enhanced with Nanofluids in Gallery

LIU Hao1, BAI Min-li1, WANG Peng1, WANG Yu-yan1,2   

  1. 1. School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, China; 2. Traffic & Transportation School, Dalian Jiaotong University, Dalian 116028,China.
  • Received:2014-06-05 Revised:2014-06-05 Online:2016-02-15 Published:2016-02-18
  • Contact: LIU Hao
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Abstract: Using high efficient heat transfer fluids can effectively improve the cooling performance of the piston in gallery. So diamond and Cu nanoparticles (50nm) were added into the engine oil to prepare the cooling nanofluids used as the cooling medium for piston cooling gallery. Based on the liquid-solid coupled thermodynamic method, the numerical simulation was carried out to investigate the influence of the cooling nanofluids on the heat transfer. The result shows that the temperature of piston can be reduced by using nanofluids with the volume fractions of 1%,2% and 3%. The cooling performance of diamond nanofluids is revealed better than that of the Cu ones.

Key words: nanofluids, piston, cooling gallery, nano-diamond, nano-Cu

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