A student wishes to use a Pitotstatic tube and a pressure tr

A student wishes to use a Pitot-static tube and a pressure transducer to measure the exit velocity of a room fan. Under standard conditions, the exit velocity is 10 m/s. Determine an available pressure transducer that is most suitable for this purpose.

Solution

To insure accurate velocity pressure readings, the Pitot tube tip must be pointed directly into (parallel with) the air stream. As the Pitot tube tip is parallel with the static pressure outlet tube, the latter can be used as a pointer to align the tip properly. When the Pitot tube is correctly aligned, the pressure indication will be maximum.

The pressure transducer can be

* Aneroid

*Bourdon tube

*mercury tube/ Manometer

*water column/water gage