Heat Transfer of Gases at Low Pressure

Spark Heat Transfer Measurements in Flowing Gases

Ë partir de techniques basŽes sur lÕinterfŽromŽtrie holographique, lՎnergie totale transfŽrŽe par une Žtincelle aux gaz environnants a ŽtŽ mesurŽe en faisant varier la gŽomŽtrie des Žlectrodes de la bougie dÕallumage, la vitesse des gaz, la pression et le temps de charge de la bobine, cette dernire Žtant un modle standard pour automobile. Pour les diffŽrentes combinaisons et valeurs des para...

Two Phase Heat Transfer Characteristics in a Vertical Small Diameter Tube at Sub Atmospheric Pressure

Two-phase heat transfer is experimentally examined through vertical small diameter tubes, D =1.45 and 2.8 mm using water under a pressure of 50 to 81 kPa and a natural circulation condition. The pool boiling correlation by Stephan-Abdelsalam and the thermosyphon boiling correlation by Imura, et al. predict the measured experimental data in the 2.8 mm tube with an error of -30%. A large heat tra...

EVALUATION OF PRESSURE EFFECT ON HEAT TRANSFER COEFFICIENT AT THE METAL- MOLD INTERFACE FOR CASTING OF A356 AL ALLOY

Abstract: During solidification and casting in metallic molds, the heat flow is controlled by the thermal resistance at the casting-mold interface. Thus heat transfer coefficient at the metal- mold interface has a predominant effect on the rate of heat transfer. In some processes such as low pressure and die-casting, the effect of pressure on molten metal will affect the rate of heat transfer a...

Prediction of Radiation Heat Transfer from Combustion Gases in a Convergent- Divergent Nozzle Using Zoning Method

Study of Boundary Layer Convective Heat Transfer with Low Pressure Gradient Over a Flat Plate Via He’s Homotopy Perturbation Method