The WL 314.01 accessory extends the experimental scope of WL 314 to include the topic: convective heat transfer inside and on the tube under parallel flow. Convective heat transfer from the tube wall to the fluid is studied.
The core element of WL 314.01 is a transparent pipe section, equipped with a ring heater and a heating element for different considerations of convective heat transfer. The heating elements together with the pipe section form a tubular heat exchanger. The ring heater is used to study the convective heat transfer from the outer wall to the inside of the tube. A heating element along the pipe axis, on the other hand, enables the study of the convective heat transfer from a heated inner tube to the outer tube. The heating elements are arranged parallel to the flow in the tube.
The accessory is inserted into the air duct of WL 314 by means of quick-release fasteners. A fan in the air duct sucks in ambient air and conveys it through the pipe section of the accessory. The air is directed past the transfer surfaces by forced convection and heats up.
The power and surface temperature of the two electric heaters is measured and displayed on the WL 314 trainer.