THERMAL SCIENCE

International Scientific Journal

Authors of this Paper

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Su Zhong-Gen

,

Zheng Wei

,

Zhang Zhen-Dong

STUDY ON DIESEL CYLINDER-HEAD COOLING USING NANOFLUID COOLANT WITH JET IMPINGEMENT

ABSTRACT
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.
KEYWORDS
cooling, cylinder head, diesel engine, heat transfer, jet impingement, nanometer
PAPER SUBMITTED: 2014-05-09
PAPER REVISED: 2015-08-17
PAPER ACCEPTED: 2015-08-28
PUBLISHED ONLINE: 2015-09-06
DOI REFERENCE: https://doi.org/10.2298/TSCI140509118Z
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2015, VOLUME 19, ISSUE Issue 6, PAGES [2025 - 2037]
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Study on diesel cylinder-head cooling using nanofluid coolant with jet impingement

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