Ray, K C and Sen, P C and Sarkar, N B and Rao , M R K (1978) Thermal conductivity of some indigenous refractories. In: Proceedings of a Seminar Organized by The Indian Ceramic Society, Jamshedpur Section with the co-operation of National Metallurgical Laboratory, Jamshedpur, 28-29, January 1978, NML, Jamshedpur.
An apparatus for determining the thermal conductivity of refractory bricks has been fabricated based on the design of Blakeley & Cobb in which a blackened brass plate calorimeter is used to determine the heat transmitted through a refractory brick. The brick is in direct contact with heated chromium plated copper plate below and the calorimeter above. The blackened calorimeter is heated by the conduction of heat coming through the refractory brick. But since the calorimeter is exposed on the surface to the atmosphere it also loses heat by convection and by radiation of this calorimeter is calculated as per the method used by Blakely & Cobt. This apparatus is simple and can be fabricated indigenously at a cheaper cost compared to a more sophisticated expensive and elaborate apparatus used for determining thermal conductivity of refractory bricks. The apparatus fabricated has its limi-tation in that the maximum hot face temperature is 1000c.
|Item Type:||Conference or Workshop Item (Paper)|
|Uncontrolled Keywords:||Indigenous refractories; thermal conductivity; refractory brick; blackened calorimeter|
|Divisions:||Metal Extraction and Forming|
|Deposited By:||Sahu A K|
|Deposited On:||19 Jun 2012 13:38|
|Last Modified:||19 Jun 2012 13:38|
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