Heat Transfer Lab

The trainer PHT-503 is used to study the convection heat transfer and effect of different geometries of the transfer area on heat transfer. Models such as tube bundles, externally heated tubes and internally heated cylinders are considered. In addition measurement of convective heat transfer with free convection in the air duct. The trainer consist of an air duct with fan which is the measuring section, in which the model of different geometries can be inserted quickly and conveniently with the help of quick-release fasteners. The air flows past the model, heats up and then exits through an air duct. A streamlined inlet element in the air duct provides a homogeneous flow for conducting the experiment. The flow rate is set via a throttle valve at the fan outlet. The model of the shell & tube heat exchanger includes two interchangeable tube bundles with different geometries. A heating element, which can be positioned anywhere in the tube bundle, simulates a heated tube. In this way, convective heat transfer can be determined depending on the tube posi-tion. Other models: PHT 503.01 (Heat transfer in pipe in parallel flow) PHT 503.02 (Heat transfer in pipe in mixed flow) PHT 503.03 (Heat transfer in pipe in a tube) Are available as optional accessories. A Pitot tube and a pressure gauge are used to determine the velocity distribution in front of and behind the models. Heat-ing power and volumetric flow rate can be adjusted. The heating power and the temperatures of air and heater are dis-played digitally.