ML19337B436

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Viewgraphs of, Caorso Single Valve Tests,Evaluation of Pressure Data Base.
ML19337B436
Person / Time
Site: Columbia Energy Northwest icon.png
Issue date: 09/18/1980
From:
BURNS & ROE CO.
To:
Shared Package
ML19337B432 List:
References
NUDOCS 8010020405
Download: ML19337B436 (4)


Text

_. . . _ _ _ _ _ _ _

9 .

CAORSO SINGLE VALVE TESTS * .

EVALUATION OF PRESSURE DATA BASE

  • ACTUATION OF VALVE "A".

8 010 0 204b5

i a

i 4

PRESSURE TRACES RECORDED DURING CA0RSO SINGLE VALVE TESTS WERE GROUPED AS FOLLOWS:

o MULTIPLE FREQUEllCY PRESSURE (NFP) WAVE FORM TYPE o SINGLE FREQUENCY PRESSURE (SFP) WAVE FORf1 TYPE i

l l

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e MFP WAVE FORM CHARACTERISTICS:

, o RICH IN FREQUE' ICY CONTENT IN THE RANGE OF 15 Hz TO 40 Hz (FRONT END OF TRACES) o A DOMINANT SINGLE CHARACTERISTIC FREQUENCY IN THE RANGE OF 6 Hz TO 10 Hz (TAIL END OF TRACES).

o NEGLIGIBLE FREQUENCY C0flTENT IN THE RANGE > 40 Hz.

o RANDOM PROPERTIES: PRESSURE AMPLITUDE AND FREQUENCY CONTENT.

SFP WAVE FORM CHARACTERISTICS:

o EXHIBITS PRIMARILY A SINGLE DOMINANT CHARACTERISTIC FREQUENCY IN THE RANGE OF 6 Hz TO 10 Hz.

o SMALLER CONTRIBUTIO.1 (THAN MFF'S) IN THE RANGE OF 15 Hz TO 40 Hz.

o NEGLIGIBLE FREQUENCY CONTENT IN THE RANGE > 40 Hz.

o RANDOM PROPERTIES: PRESSURE AMPLITUDE AND FREQUENCY CONTENT.

CORRR ATION ANALYSIS OF RECORDED BOU.51DARY PRESSURES T'd0 TYPICAL TESTS WERE CONSIDERED:

o TEST 502 (MFP WAVE FORM TYPE), AND o TEST 2202 (SF? WAVE FORM TYPE).

MATRIX OF CROSS-CORRELATION COEFFICIENTS F0P.

PRESSURE TRACES RECORDED BY SENSORS P 9, P13, P14, P11 AND P10 WAS CALCULATED.

RESULTS OBTAINED INDICATE NEAR PERFECT CORRELATION ONLY AT 17= 0.

CONCLUSIONS:

o TEMPORAL BEHAVIOR IS INDEPENDENT OF SPATIAL DISTRIBUTION FOR MEASURED BOUNDARY PRESSURES, t.e., '

P(R,T) = PC,a)

  • T(T) 1 o 'dATtR IN SUPPRESSION POOL MAY BE ASSUMED AN INCOM-PRESSIBLE FLUID.

_