Description
Study of heat transfer by free and forced convection in a vertical duct. A heater with different heat transfer surfaces is attached to the middle of the duct. A window is provided for visual inspection of the heating surface. Air enters the duct at the bottom and escapes via the top. A fan is attached to the top of the duct to induce forced convection. Air velocity is measured by thermal probe anemometer. Temperatures of hot surface and of air at different points in the duct are measured by thermocouples. A control and display panel is provided for wattmeter and temperature indicators.
