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Pressure losses in the pipe flow of incompressible fluids cause pressure losses in pipes. Fundamental experiments demonstrate the pressure losses in straight pipe sections and the pressure losses due to flow separation in pipe elements such as pipe bends or enlargements.
Used in conjunction with HM 240, the HM 240.05 accessory makes it possible to record the pressure losses in various pipe elements. The pipe elements may be combined and assembled to create a variety of piping systems. The pipe is attached to the fan in place of the intake pipe in HM 240. A replaceable pipe element (sudden enlargement or uninterrupted air inlet) is attached at the pipe inlet.
Measuring points on the straight pipe sections enable measurement of the pressure losses. The velocity is detected at the pipe inlets. The measured values are analysed using the HM 240 software.
HM 240.05 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.
The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments.
Learning Objectives / Experiments
in conjunction with HM 240
- measurement of pressure losses in
* straight pipe sections
* a 90° pipe bend
* a 90° pipe angle
- investigate the effect of differently shaped pipe inlets
* uninterrupted air inlet
* sudden enlargement