Educational Laboratory of Heat Transfer
The heat transfer laboratory is offered as a one-credit course in the Chemical Engineering Department. The goal of this laboratory is to observe heat transfer mechanisms and thermodynamic principles and perform calculations using experimental data obtained in the laboratory.
EXPERIMENT TO INVESTIGATE CONDUCTIVE HEAT TRANSFER IN SOLIDS AND OBTAIN THE HEAT TRANSFER COEFFICIENT
Investigation of thermal conductivity heat transfer in solids (metals) along metal cylinders of different diameters and different materials and obtaining the conductivity heat transfer coefficient (K) and drawing a temperature distribution diagram in the tested parts. The metal cylinder is made of steel and brass with diameters of 1 and 2.5 cm, and heat transfer occurs only in the axial direction (along the axis of the cylinders).
Fluid Conductivity Testing Device
With this device, the conductive heat transfer coefficient of fluids can be obtained. This device consists of a brass cylinder with an electric heater inside. This heater generates heat with a variable voltage. A short distance from the heater is an empty ring with a very thin thickness, which is connected to the outside by two screws. The fluid to be tested enters the device through this channel, then the screws are closed and the connection of the static fluid with the outside environment is cut off. There is a cold water flow in the outer wall of the brass cylinder to remove heat from the device to the outside.
The heat generated by the heater enters the brass part of the cylinder, then passes through the thickness of the ring by the fluid and is conducted, and finally exits the system by cold water.
Two sensors on both sides of the ring measure the temperature of the inner and outer radius points of the ring.
Shell and tube heat exchanger testing device
A shell and tube heat exchanger in which hot water flows in the inner tubes and cold water in the outer shell. 4 temperature sensors on the device show the temperature of different points of the exchanger. With this device, the heat transfer rate and logarithmic temperature difference, the efficiency of the exchanger and finally the overall heat transfer coefficient are calculated.
Also, since the exchanger creates both co-current and anti-co-current flow modes, the difference between the two flows in heat transfer and the temperature distribution diagram in them can be examined.
Plate or compact heat exchanger device
A compact or plate heat exchanger in which hot and cold water flows between successive plates and heat is transferred between the two hot and cold fluids. 4 temperature sensors on the device show the temperature of different points of the exchanger.
With this device, the heat transfer rate and logarithmic temperature difference, the efficiency of the exchanger and finally the overall heat transfer coefficient are calculated.
Also, because the exchanger creates both co-current and anti-co-current flow modes, the difference between the two flows in heat transfer and the temperature distribution diagram in them can be examined.
