The WL 314.02 accessory extends the experimental scope of WL 314 to include the topic: convective heat transfer on pipes with mixed flow. Convective heat transfer from the tube wall to the fluid is studied.
The core element of WL 314.02 is a transparent pipe section, equipped with a tube bundle. A heating element located in the centre of the tube bundle simulates a heated pipe. The tube bundle together with the pipe section form a shell & tube heat exchanger. The experiment examines the convective heat transfer between tube and fluid.
The accessory is inserted into the air duct of WL 314 using 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 to the transfer surfaces by forced convection and heated up. The pipe section is constructed in such a way that deflection plates guide the air through the tube bundle. The number of deflections can be varied by removing and installing the deflections plates.
The power and surface temperature on the shell surface of the heating element is measured and displayed on the WL 314 trainer.