UTHM Institutional Repository

Heat dissipation analysis of UTHM chassis dynamometer

Wong, Jiung and Mohd Ali, Mas Fawzi and Mohamad, Mahmod Abd Hakim and Mohamad, Akmal Nizam (2009) Heat dissipation analysis of UTHM chassis dynamometer. In: Malaysian Technical Universities Conference on Engineering and Technology (MUCEET 2009), 20-22 June 2009, Kuantan, Pahang.

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Abstract

Chassis dynamometer, as available in UTHM’s automotive laboratory, are suitable for measuring torque and power produce by a vehicle; the reading produced are indicative of the vehicle’s performance on the road, considering the losses due to friction in the mechanical components. A major problem that could affect the dynamometer readings accuracy is the high temperature reached by the system after prolong usage. This is due to excessive heat produced at high operational loads. Thus a study was done to determine whether enough heat dissipation can be achieved at maximum operation load. This project seeks to improve the cooling efficiency of the dynamometer cooling system though several means. Firstly, the piping system was reconfigured to increase the surface contact with the cooling fluid, thus improving the heat transfer. Secondly, a cooling fluid that has a higher specific heat capacity was added to the existing water circulation so that more heat can be rejected at the same flow conditions. The results were compared with the existing data to determine the level of improvement achieved at the end of the project.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: chassis dynamometer, heat exchanger, cooling efficiency
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Plant and Automotive Engineering
Depositing User: Suhaila Othman
Date Deposited: 26 May 2010 00:37
Last Modified: 21 Jan 2015 08:13
URI: http://eprints.uthm.edu.my/id/eprint/422
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