Thermal conductivity of fluids with computer-controlled trainer tends to illustrate basic experiments for targeted teaching on the topic of heat conduction in fluids. The trainer discusses the fundamental differences between thermal conductivity of gases and liquids.
- This trainer has been designed for investigation of the thermal conductivity of common fluids, e.g. Water, oil, air or carbon dioxide
- The trainer basically consists of two cylinders which are an electrically heated aluminum inner cylinder and a water-cooled copper outer cylinder.
- The electrically heated inner cylinder is suited in the water-cooled outer cylinder. There is a concentric annular gap between the two cylinders. This annular gap is filled with the fluid being studied.
- The heat conduction occurs from the inner cylinder, through the fluid to the outer cylinder.
- The narrow annular gap prevents the formation of a convective heat flux and allows a relatively large pass-through area while at the same time providing a homogeneous temperature distribution.
- The trainer is equipped with temperature sensors inside the aluminum cylinder and the outside of the annular gap.
- The trainer is equipped with a water source inlet and outlet for cooling to keep working on a steady state, and the experimented fluid inlet and outlet hoses.
- The trainer’s control panel permits heater ON/OFF, heater power control, heater power display, trainer ON/OFF and emergency stop.
- The unit is connected to a PC via USB to display the interactive software.
- The interactive software displays temperatures and power consumption, and permits generating the fitting curve of the experimented fluid and calculating the its thermal conductivity.
