When water flows through a pipe system, the flow resistances causes pressure losses to occur at pipe fittings and valves and fittings.
The unit can be used to investigate and visualise the pressure losses in pipe elements. The experimental unit can be used to assess how different pipe geometries affect the flow.
The experimental unit comprises a pipe section containing several pipe elements with different flow resistances, as well as a contraction and enlargement piece. There is also a ball valve integrated in the pipe. There are pressure measuring points with annular chambers upstream and downstream of the pipe elements, which ensure accurate pressure measurement. The pressure measuring points can be connected in pairs to a 6 tube manometers in order to determine the pressure loss of a pipe element.
The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments.
Learning Objectives / Experiments
investigate pressure losses at segment bend and bends
Investigate pressure loss at contraction and enlargement
Pressure loss at a ball valve and determination of a simple valve characteristic
Specification:
Investigation of the pressure loss in flow through pipe fittings and in the ball valve
Sudden contraction and sudden enlargement, pipe bend, segment bend, pipe angle and ball valve as measurement objects
Annular chambers allow precise measurement of pressure
6 tube manometers for displaying the pressures
Bourdon tube pressure gauge for pressure measurement
Flow rate determined by base module
Water supply via base module or via laboratory supply