PRACTICAL GUIDE.FMM$3701$

Experiment $1$

Pipe friction

Aim of experiment

Determine pressure losses in tubes depending on the mass flow

Preparing the experiment

Experiment set$-$up

Attach the pipe section with desired diameter to the measuring nozzle and intake connection using union nuts. Note: the longer end is the abatement section for the inlet and must be connected to the measuring nozzle.

Connect the pressure measuring points to the differential pressure manometer as shown. $34$ mm : Measuring range $0$dots$25\frac{m}{b}ar-24mm,16mm$ : Measuring range $0..\mathrm{.}600\frac{m}{b}ar$

Connect pressure measuring points to the measuring nozzle to the negative connection of the velocity display.

Procedure

Switch on the fan and set the desired flow via the speed.

Record the velocity c from the measuring nozzle and the pressure loss $P.$

Set new flow rate via speed and repeat the measurement.

Repeat the series of measurement for other pipe diameters.

Experiment Data

$\backslash$table$[[,$Diameter $34$ mm$,$Diameter $24$ mm$,$Diameter $16$ mm$],[,\backslash$table$[[$Velocity c in$],[\frac{m}{s}$