| Measurement of Heat Flux and Heat Transfer
Coefficient of an Oxy-Hydrogen Flame
Used for Thermal Shock Test |
P. K. Panda, V. A. Jaleel and G. Lefebvre
Pages : 26-28
DOI : 10.1080/0371750X.2002.10800014 |
| 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 through the small annular zones of
coppe~ block over which the flame was impinged. The copper
block m 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 an~ heat transfer coefficient profiles were generated by
employang standard heat loss equations. |
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