Heat transfer by Free & forced Convection in a vertical duct is carried out in this unit. Convection is one of the three basic types of heat transfer. In this process the whole fluid moved from warm zones into cold zones. The vertical duct is constructed in such a way that the air temperature and velocity can be readily measured.
A fan situated at the top of the duct provides the air stream for forced convection experiments. A control panel contains temperature measurement, power control and fan speed control circuits with appropriate instruments. Air velocity measured with portable anerameter mounted on the on the duct.