... transfer factors are required to carry out the radiant exchange calculations. In this paper, it is shown that when the enclosure is comprised of some adiabatic surfaces (as is nearly always the case in radiative furnaces), this number can be reduced considerably. This reduction in the required number...

... of randomized rays leaving each surface. View factors were calculated for an operational fiber drawing furnace using both numerical integration and ray-tracing methods. Calculated view factor profiles were essentially identical above a ray density of 10 5 per unit area. Run times for the ray-tracing method were...

...Daniel Baker; George S. Dulikravich; Brian H. Dennis; Thomas J. Martin A novel algorithm has been developed for the nondestructive determination of the shape of the interface between a melt and a refractory material wall in smelter furnaces. This method uses measurements of temperature and heat...

...Chunming Chen; Yogesh Jaluria A numerical model is developed to study the radiative heat transfer in a furnace for optical fiber drawing with a core-cladding structure in the fiber. The focus is on the effect of the difference in composition and thus the radiation properties in the two regions...

...Animesh Dutta; Prabir Basu Using data from large CFB boilers, and taking average solids concentration, size and height of the boiler-furnace as variables, a correlation for fractional wall coverage has been developed. This correlation for wall coverage and several other refinements have been used...

... June 10, 2002. Associate Editor: R. Skocypec. 14 September 2001 10 June 2002 03 12 2002 temperature distribution heat radiation heating Monte Carlo methods Fredholm integral equations Control Furnaces Heat Transfer Inverse Optimization Radiation Design...

... a significant resistance to radiative transport, which reduces the heat flux to the glass melt and the temperature at the interface with the glass melt. Thus, the amount of heat received by the glass melt is much less in areas of the glass melting furnace where thicker foam layers are present, which makes...

... or more surfaces of the system under study be overspecified ; e.g., both temperature and heat flux may be specified on the material passing through an annealing furnace. On one or more other surfaces, no boundary condition is initially specified; indeed, the objective is to determine that boundary...

...C. Zhang, Assoc. Mem. ASME; T. Ishii; Y. Hino; S. Sugiyama A numerical procedure is presented to predict the turbulent non-premixed combustion flames in regenerative furnaces. A moment closure method with the assumed β probability density function (PDF) for the mixture fraction is used...

... Coatings Furnaces High Temperature Optical Fiber Radiation Anderegg F. O. , 1939 , “ Strength of Glass Fibers ,” Industrial Engineering Chemistry , Vol. 31 , pp. 290 – 298 . Anderson O. L. , 1958 , “ Cooling Time of Strong Glass Fibers ,” Journal of Applied Physics , Vol...