Description • extensive possibilities for basic experiments in fluid mechanics • different pipe sections with variouspipe elements • GUNT software for data acquisition The knowledge of flow in pipe systems hasa wide range of practical applications inmany fields.When water flows through apipe system the internal friction and thepipe friction cause pressure losses. Thepressure losses in the fluid are directly dependent on the resistances and theflowvelocity. The MR-HM 112 trainer allows a variety of experiments for flow and pressure measurement and thedetermination of pressurelosses and pressure curves in differentpipe elements. The measured values areanalysed using the GUNT software supplied. Characteristics can easily be recorded and analysed directly on a PC. The trainer contains six different, horizontally arranged pipe sections, which allowthe effects of pipe material, diameter andchanges in cross-sectional and directionon the pressure loss to bestudied. Measuring objects such as valves,strainers, a Venturi nozzle, a Pitot tube ororifice plate flow meter or measuringnozzle can be used in another pipe section.To make the functions clearly visible, someof the measuring objects are transparent.Additional measuring objects are availableas a set (MR-HM 110.01) to expand the scopeof experiments. The trainer can be operated independentlyfrom the mains water network and isequipped with a pump and a water tank.The trainer includes a rotameter to determine the flow rate. Pressure measuringpoints are located immediately upstreamand downstream of the measuring objects.These are designed as annular chambers,ensuring a precise pressure measurement. Five different pressure gauges withsimulation or digital displays are providedfor pressure measurement. Depending on the measurement method,the measured values can be read off thesimulation manometer or digital displays.The measured values are transmitted directly to a PC via USB. The data acquisitionsoftware is included.
Learning objectives/experiments • flow and pressure measurement methods • function of nozzle, orifice, Venturi nozzle • losses due to pipe bends and pipe angles,changes in cross-section and shut-offvalves and fittings • determining pipe friction factors and resistance coefficients • opening characteristics in shut-off valvesand fittings
Specification [1] trainer for fluid mechanics experiments [2] interchangeable measuring objects, partly transparent: angle seat valve, diaphragm valve, ballvalve, nonreturn valve, strainer, Pitot tube, Venturi nozzle, orificeplate flow meter and measuring nozzle [3] different pipe sections [4] precise pressure measurement using annular chambers [5] differential pressure measurement using tube manometers [6] flow rate measurement using rotameter [7] digital displays for pressure and differential pressure [8] GUNT software for data acquisition via USB underWindows 7, 8.1, 10 [9] additional set of measuring objects MR-HM 110.01 available