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44

Department of Energy and

Process Engineering

Spring 2017

Planning, Start-Up and

Testing on a PipeFlow

Loop for the Investi-

gation of Transient

Characteristics

Supervisor:

Bjørnar Svingen (NTNU)

Co-supervisor:

Morten Kjeldsen (FDB)

Eirik Myrvold Hansen

MASTER THESIS

Background and objective

A good understanding of transient flows in pipes

and ducts is essential to ensure safe operation

of hydropower plants. Forced transients can be

used actively to improve this understanding by

means of frequency response measurements.

Experiments involving such transients will be

done by Flow Design Bureau AS in a closed flow

loop. The purpose of this master thesis is to

assist them in their work, considering design,

modelling and analysis related aspects.

System sketch showing the closed flow loop in

which the experiments will be performed

Flowmaster network used for simulations of

transients in the flow loop.

Photograph from the test site showing the scale

of the flow loop

Suggested mechanism for forcing the transients

in the system