An experimental investigation of turbulent natural convection in air at low pressure along a vertical heated flat plate

Abstract

An experimental investigation of turbulent natural convection in air is described. The results of this study show good agreement with early investigations and remarkable agreement with the analytical correlation of Bayley [4]: Nu = 0.10 Raf for Rayleigh numbers up to 10r2. Extensive measurements of the temperature field indicate a good similarity in the temperature profiles when compared on the basis of the natural coordinatey. The use of power law temperature protiles is shown

Thermal Modeling Analysis of CST Media in the Small Column Ion Exchange Project

“…For the present geometrical configuration, C=0.10 and m=0.333 are given by Warner and Arpaci using the experimental data [12]. From eq.…”

Heat Transfer Analysis for a Fixed CST Column

“…Typical air flow and temperature profiles within the system containing the CST under actual energy transport process, including buoyancy-driven natural convection due to the fluid 7 of 52 temperature gradient, were illustrated in the previous reports [5,10]. Figure 1 illustrates buoyancy-driven natural convection caused by the fluid temperature gradient.…”

Thermal analysis for ion-exchange column system

“…The heat transfer coefficient (h w ) for natural convective cooling under a turbulent flow regime (Ra f = Gr L Pr f > 10 9 ) is given empirically in terms of non-dimensional numbers [Warner and Arpaci, 1968].…”

“…For the present geometrical configuration, the coefficients (C=0.10 and m=0.333) are reported by Warner and Arpaci (1968) Heat transfer coefficients (h wf ) for forced convective heat transfer mechanisms through the column wall attached to the water jackets and through the inner surface of the coolant pipe at the column center were estimated by the literature correlation [Dittus and Boelter, 1930]. That is,…”