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Table 2

Unsteady-state tests for evaluating the PRV transient response (HNSP = 26 m)

Type of transientTest (no.)Type of manoeuvreMain characteristics
Short duration MV complete fast closure Rei = 3.43*104, L2 = 69.7 m 
MV complete slow closure 
MV complete fast opening Ref =3.29*104, L2 = 69.7 m 
MV complete slow opening 
Pump trip Rei = 3.43*104, L2 = 69.7 m 
10 Rei = 2.47*104, L2 = 69.7 m 
11 Pump start up Ref = 3.43*104, L2 = 69.7 m 
12 Ref =2.47*104, L2 = 69.7 m 
Long duration 13 Daily demand pattern L2 = 69.7 m 
14 L2 = 181.8 m 
Type of transientTest (no.)Type of manoeuvreMain characteristics
Short duration MV complete fast closure Rei = 3.43*104, L2 = 69.7 m 
MV complete slow closure 
MV complete fast opening Ref =3.29*104, L2 = 69.7 m 
MV complete slow opening 
Pump trip Rei = 3.43*104, L2 = 69.7 m 
10 Rei = 2.47*104, L2 = 69.7 m 
11 Pump start up Ref = 3.43*104, L2 = 69.7 m 
12 Ref =2.47*104, L2 = 69.7 m 
Long duration 13 Daily demand pattern L2 = 69.7 m 
14 L2 = 181.8 m 
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