The high heat transfer rates from impinging flame jets and plumes are extensively used in many industrial applications. Comprehensive literature review suggests that the characterization of flame impingement is done primarily by the measurement of heat flux onto the target surface. The use of in-situ probes limits the spatial resolution of the meas...
The flame jet impingement on curved surfaces fords applications in various direct flame heating situations. The design of heating equipment demands the estimation of the surface temperature and of the convective heat flux to the target surface at steady state for various impingement parameters. The characterisation of flame jets in terms of Nusselt...
Nonuniform temperature fields in steam cracking furnaces caused by geometry factors such as burner positions, shadow effects, and asymmetry of the reactor coil layout are detrimental for product yields and run lengths. The techniques of adjusting burner firing (zone firing) and feedstock mass flow rate (pass balancing) have been practiced industria...
Erler, F.Walter, G.univ., technischehochschule, im technische
Hot operating bearings for use in brick kilns at temperatures up to 1000 C were investigated. It was found that none of the ceramics investigated was to be favoured, but that combinations of any two materials have the advantage that one bearing part can be designed selectively for wear. Evaluations of measurements of the friction momentum showed th...
Pixner, P.Krebs, W.Siemens AG Power Generation, Muelheim an...
Demands on modern gas turbine systems are high efficiency and low emissions. Due to that nearly all gas turbine systems use piloted premixed combustion. Modeling of combustion processes withComputational Flow Dynamics CFD suffers from the complexity of combustion chemistry. The direct application of kinetics leads to hugh and stiff differential equ...