Effect of fire-deck thickness on thermal status of cylinder head

Chen, X., Lu, Y. , Huang, R., Sun, Z., Yu, X. and Roskilly, A. P. (2017) Effect of fire-deck thickness on thermal status of cylinder head. Energy Procedia, 142, pp. 4022-4028. (doi: 10.1016/j.egypro.2017.12.320)

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In this paper, different value of fire-deck thickness on temperature, thermal stress and low cycle fatigue (LCF) life of cylinder head has been discussed and investigated. A 6-cylinder engine has been selected for CFD and thermal analysis. And a half model (3-cylinder) has been used for the stress and corresponding LCF calculation because of the identical structure among cylinders. The thermal condition of cylinder head is calculated with the conjugate heat transfer (CHT) simulation between cylinder head and coolant. The results shows that temperature variation among different cylinders is tiny. With the fire-deck thickness (FDT) increased, the temperature and thermal stress on cylinder head fire-face raised apparently, while the LCF life is reduced. When the FDT increases from 9 to 13, the thermal stress, peak and average temperature on cylinder head fire face is increased by 10.85%, 5.89% and 4.76%, respectively. The corresponding LCF life is reduced from 9875 to 5730 times.

Item Type:Articles
Additional Information:Conference paper first presented at 9th International Conference on Applied Energy (ICAE2017), Cardiff, UK, 21-24 Aug 2017.
Glasgow Author(s) Enlighten ID:Lu, Dr Yiji
Authors: Chen, X., Lu, Y., Huang, R., Sun, Z., Yu, X., and Roskilly, A. P.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
Journal Name:Energy Procedia
ISSN (Online):1876-6102
Published Online:31 January 2018
Copyright Holders:Copyright © 2017 The Authors
First Published:First published in Energy Procedia 142: 4022-4028
Publisher Policy:Reproduced under a Creative Commons License

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