HM 240.06 Heat transfer at a cylinder in transverse flow
The aim of this basic experiment is to determine the heat transfer coefficients, a specific indicator, from the cooling curve. Cooling curves describe the temperature compensation between a body and its surroundings, as a function of time.
Used in conjunction with HM 240, the HM 240.06 accessory makes it possible to record the cooling curve of a cylinder in air flow. The accessory includes an oven and a copper cylinder. The large copper cylinder is heated in the oven to approximately 120°C. Then, the heated cylinder is placed in HM 240’s intake pipe and cooled in an air flow.
A temperature sensor is fitted inside the cylinder. The convective heat transfer on the cylinder can be determined from the cooling rate.
The experiment can be performed for various flow rates. The measured values are analysed using the HM 240 software.
HM 240.06 is part of a series that allows experiments on the principles of incompressible air flow. The software for data acquisition and visualisation makes the experiments especially clear and enables fast execution of experiments with reliable results.
- forced convection on the cylinder
- cooling curve and heat transfer coefficient
- accessory for HM 240
Oven
- heating power: 100W
Cylinder
- material: copper
- length: 120mm
- outer diameter: 20mm
Measuring ranges
- temperature: 0…200°C
230V, 50Hz, 1 phase
230V, 60Hz, 1 phase
- convective heat transfer of a cylinder in an air-flow tube
- accessory for HM 240
- copper cylinder with integrated temperature sensor
- cylinder is heated in the oven to approximately
120°C - oven keeps the temperature constant
- display and analysis of the measured values using the software in HM 240
in conjunction with HM 240
- recording a cooling curve
- determining the heat transfer coefficients from the cooling curve