Measurement of heat flux and heat transfer coefficient of an oxy-hydrogen flame used for thermal shock test

Panda, PK and Jaleel, VA and Lefebvre, G (2002) Measurement of heat flux and heat transfer coefficient of an oxy-hydrogen flame used for thermal shock test. Transactions of the Indian Ceramic society, 61 (1). pp. 26-28. ISSN 0371-750X

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Abstract

Heat flux and heat transfer coefficient profiles of an oxy-hydrogen flame used for thermal shock and thermal fatigue tests of ceramic materials were generated experimentally by measuring the heat lost by the flame throughthe small annular zones of copper block over which the flame was impinged. The copper block in the form of a hollow cylinder with water inlet and outlet facility was fabricated. In order to impinge the flame over a selected area, pyrophylite rings of varying internal diameters (dia.= 3-11 mm) were used. A constant flow of water through the copper block was maintained and the temperatures of the inlet and outlet water were measured to calculate the heat flow parameters. The experiments were repeated by replacing the pyrophylite discs from smaller to bigger holes, thereby, measuring heat input over gradually increasing areas. From the experimental data, the heat flux and heat transfer coefficient profiles were generated by employing standard heat loss equations.

Item Type: Article
Additional Information: Copyright to this article belongs to M/s. The Indian Ceramic Society
Uncontrolled Keywords: Thermal shock test;Structural ceramic materials
Subjects: CHEMISTRY AND MATERIALS > Chemistry and Materials (General)
Depositing User: Users 11 not found.
Date Deposited: 27 Nov 2012 08:41
Last Modified: 27 Nov 2012 08:41
URI: http://nal-ir.nal.res.in/id/eprint/11375

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