Pipe friction for laminar / turbulent flow, Reynolds number and pipe friction factor Features - calculation of pressure losses and determination of the Reynolds number and pipe friction coefficient - intuitive experiment execution via touch screen (HMI) - integrated router for operation and control via an end device and for screen mirroring on up to 10 end devices: PC, tablet, smartphone - network capability: access to ongoing experiments from external workstations via the local network - automatic identification of accessories via RFID technology Learning objectives/experiments - using the Reynolds number in pipe flow - determine critical Reynolds number - calculate the Reynolds and pipe friction coefficient from measured data - compare theoretical values with measured values - investigate the influence of temperature - similarity relationships in pipe flow - using the Moody chart - distinction between laminar and turbulent flow - determine pressure loss in laminar and turbulent flow - software specifically adapted to the accessories used -- learning module with theoretical fundamentals -- device description -- guided experiment preparation -- execution of the experiment -- graphical representation of pressure curves -- data transfer via USB for versatile external use of measured values and screenshots e.g. evaluation in Excel -- different user levels available Specification [1] investigation of pipe friction in laminar or turbulent flow [2] observation of the free jet to distinguish between laminar and turbulent flow [3] measurement of the pressure loss after an inlet section [4] flow rate and temperature in the pipe section can be adjusted via HM 250 base module [5] automatic identification of accessories via RFID technology and use of the corresponding software [6] experiment execution and display of the measured values via touch screen (HMI) [7] network capability: access to ongoing experiments and their results from up to 10 external workstations simultaneously via the local network [8] water supplied via HM 250 base module Technical data Pipe bundle of 6 tubes - Ø inner 1mm +/-0,12mm - inlet section: length 220mm - measurement of pressure at 100mm and 200mm Pipe bundle of 4 tubes - Ø inner 2mm +/-0,12mm - inlet section: length 320mm - measurement of pressure at 200mm Pipe bundle of 4 tubes - Ø inner 3mm +/-0,12mm - inlet section: length 320mm - measurement of pressure at 200mm Pipe bundle of 2 tubes - Ø inner 4mm +/-0,12mm - inlet section: length 220mm - measurement of pressure at 200mm Single pipe - Ø inner 6mm +/-0,12mm - inlet section: length 320mm - measurement of pressure at 200mm Single pipe - Ø inner 8mm +/-0,16mm - inlet section: length 320mm - measurement of pressure at 200mm Material: brass, nickel-plated Measuring ranges - pressure: 0...440mbar (at Ø 1mm, L=200mm) - flow rate: 0...12L/min (at Ø 8mm, L=200mm) - temperature: 0...50°C LxWxH: 650x260x105mm Weight: approx. 7kg
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