TY - JOUR
TI - Study on diesel cylinder-head cooling using nanofluid coolant with jet impingement
AU - Zhong-Gen Su
AU - Wei Zheng
AU - Zhen-Dong Zhang
JN - Thermal Science
PY - 2015
VL - 19
IS - 6
SP - 2025
EP - 2037
PT - Article
AB - To improve the heat-transfer performance of a diesel-engine cylinder head,  nanofluid coolant as a new fluid was investigated, and jet impingement  technology was then used to study on how to better improve heat-transfer  coefficient at the nose bridge area in the diesel-engine cylinder head.  Computational fluid dynamic simulation and experiments results demonstrated  that using the same jet impingement parameters, the different volume shares  of nanofluids showed better cooling effect than traditional coolant, but the  good effect of the new cooling method was unsuitable for high volume share  of nanofluid. At the same volume share of nanofluid, different jet  impingement parameters such as jet angles showed different heat-transfer  performance. This result implies that a strong association exists between  jet impingement parameters and heat-transfer coefficient. The increase in  coolant viscosity of the nanofluid coolant using jet impingement requires  the expense of more drive-power cost.