Critical heat flux and Leidenfrost temperature on Electrical Discharge Machining (EDM) - constructed hemispherical surface

Illias, Suhaimi and Hussain, Suhaila and Rosman, N. A and Baharuddin, M.E and Shaiful, A.I.M. and Ismail, Khairul Azwan and Mohd Hanafi, Ani and UNSPECIFIED (2021) Critical heat flux and Leidenfrost temperature on Electrical Discharge Machining (EDM) - constructed hemispherical surface. Case Studies in Thermal Engineering, 27. pp. 1-8. ISSN 2214-157X

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Abstract

This paper reports a Leidenfrost temperature on hemispherical surface constructed by Electrical discharge machining or known as EDM. We focus our study on the droplet evaporation lifetime to investigate and identify the Leidenfrost temperature. Three (3) different types of materials were selected i. e such as Brass (Br), Aluminum (Al) and Copper (Cu). Meanwhile, ethanol liquid has been chosen as the test liquid. Ethanol liquid was elected due to its low boiling point of approximately 78 ◦C. The droplet impact velocity and droplet diameter was approximately 1.129 m/s and 3.476 mm, respectively. As a result, we finally succeeded in determining the Leidenfrost temperature for all materials mentioned above. On top of that, all the Leidenfrost temperature results, TL were close to the superheat limit temperature of ethanol liquid, TSL which is about 197.8 ◦C.

Item Type:	Article (Journal)
Uncontrolled Keywords:	Leidenfrost temperature, Electrical discharge machining, Droplet Evaporation lifetime
Subjects:	T Technology > TJ Mechanical engineering and machinery
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User:	Dr Mohd Hanafi Ani
Date Deposited:	24 Aug 2021 09:42
Last Modified:	24 Aug 2021 09:42
URI:	http://irep.iium.edu.my/id/eprint/91687

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