Abstract: Experiments and computations were conducted on infrared radiant burner operated on natural gas/air mixtures. The burner had not porous media and consisted of plates (recuperative elements) of heat-resistant metal alloy (Fe base, Cr 25%, Al 6%) with high thermal conductivity. The height of the recuperative elements system varied from 18 mm to 70 mm. The Al2O3 coatings were tested and found effective for covering the surface of the recuperative elements in burners. The operating surface temperature of recuperative elements coated with aluminum oxide reached values of 1450°C. Stable combustion mode is implemented in the range of specific burning power (firing rate) values from 2.8 MW/m2 to 5.3 MW/m2 per unit area of the gas stream cross-section. The maximum power of the burner is 16 kW with a flow cross-section of 30 cm2. The concentration of nitrogen oxides in the combustion products is up to 14ppm, the concentration of carbon monoxide is up to 20 ppm with an excess air coefficient (air

• Publication Date: 26-Jul-2020
• DOI: 10.15224/978-1-63248-189-4-07
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Abstract: The need to find a sustainable method easily understood and applied by a common construction engineer in less technically advanced countries compels us to start the work presented in this paper as a pushover method in bridge-vehicle interaction research. Handling limited scientific resources to solve complex structural engineering problems to predict and control the traffic induced vibration associated with high order differential equations is the main objective of this work. The proposed methodology models the bridge-vehicle system by considering the bridge sub model and the vehicle sub model in the system interaction model, each subsystem including interaction dynamic parametric elements associated with irregularities on the wheel-rail interface, and the resulted dynamic interaction equations are solved using higher-order and fixed-point methods. Graphical results obtained from the developed numerical approximation is easily applied and understood by local civil engineers with adequa

• Publication Date: 26-Jul-2020
• DOI: 10.15224/978-1-63248-189-4-08
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• Downloads: 0