FM 22 ADVANCED STUDY OF LOSSES IN PIPE SECTION & PIPE ELEMENTS

Pressure losses occur during the flow of real fluids due to friction and turbulence (vortices). Pressure losses in pipes, piping elements, fittings and measuring instruments (e.g. flow meter, velocity meter) cause pressure losses and must therefore be taken into account when designing piping systems. It allows studying the pressure losses in pipes, piping elements and shut-off devices. In addition, the differential pressure method is presented for measuring the flow rate. The experimental unit contains six different pipe sections capable of being shut off individually. The pipe sections are equipped with piping elements such as bends, elbows and branches. In one pipe section, different shut-off devices and measuring objects are installed to determine the flow rate. The measuring objects are made of transparent material and provide excellent insight into the inner structure. The pressure measuring points in the piping system are designed as annular chambers. This creates a largely interference-free pressure measurement. The experiments measure the pressure losses in pipes and piping elements, such as branches and bends. The opening characteristic of the shut-off devices are also recorded. The pressures are measured with tube manometers. The experimental unit is positioned easily and securely on the work surface of the base module. The water is supplied and the flow rate measured by base module. Alternatively, the experimental unit can be operated by the laboratory supply. The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments.

• Pressure losses in pipes, piping elements and fittings
• Pressure losses in pipes, piping elements and fittings
• • determining resistance coefficients
• • opening characteristics of angle seat valve and gate valve
• • Familiarisation with various measuring objects for determining flow rate:
• Venturi nozzle Orifice plate flow meter and measuring nozzle

• • Investigation of pressure losses in piping elements and shut-off devices
• • Different measuring objects for determining flow rate according to the differential pressure method
• • Six pipe sections capable of being individually shut off, with different piping elements: sudden contraction, sudden enlargement, Y-pieces, T-pieces, corners and bends
• • One pipe section to hold interchangeable shutoff/ measuring objects
• • Measuring objects made of transparent material: Venturi nozzle, orifice plate flow meter and measuring nozzle
• • Shut-off devices: angle seat valve, gate valve
• • Annular chambers allow measurement of pressure without interaction
• • 2 twin tube manometers for measuring the pressure difference
• • Flow rate determined by base module
• • Water supply using base module or via laboratory supply