Radiative and convective heat exchange in technological furnaces of petrochemical industry

Computational Study of Radiative and Convective Heat Transfer in a Cylindrical Combustion Chamber

In this paper, the effect of cold air on the fluid flow inside the cylindrical combustion chamber and its wall temperature distribution have been studied computationally, taking into account the effect of radiative heat transfer from hot gases. The results have been compared with the case that radiative heat transfer was neglected. It is observed that the reattachment length increases when incr...

Effect of Thermal Conductivity and Emissivity of Solid Walls on Time-Dependent Turbulent Conjugate Convective-Radiative Heat Transfer

In the present study, the conjugate turbulent free convection with the thermal surface radiation in a rectangular enclosure bounded by walls with different thermophysical characteristics in the presence of a local heater is numerically studied. The effects of surface emissivity and wall materials on the air flow and the heat transfer characteristics are the main focus of the present investigati...

Foreign exchange market Movements and investment risk in the petrochemical industry

In this investigation, by the time series data of exchange rate and petrochemical industry stock index in the Tehran Stock Market from March 2009 to April 2019, a new Hybrid Model (resulting from the use of Exponential Generalized Autoregressive Conditional Heteroscedasticity, EGARCH, Model and Markov Switching Regime Model) is used. The results of study, in addition to confirming the idea of ​...

Heat Transfer Study of Convective-Radiative Fin under the influence of Magnetic Field using Legendre Wavelet Collocation Method

The development and production of high performance equipment necessitate the use of passive cooling technology. In this paper, heat transfer study of convective-radiative straight fin with temperature-dependent thermal conductivity under the influence of magnetic field is carried out using Legendre wavelet collocation method. The numerical solution is used to investigate the effects of magnetic...

Advanced Gasification of Biomass/Waste for Substitution of Fossil Fuels in Steel Industry Heat Treatment Furnaces