ML19331B916
| ML19331B916 | |
| Person / Time | |
|---|---|
| Site: | Fort Calhoun  |
| Issue date: | 07/11/1980 |
| From: | Noland C, Novgrod R, Rowley C NUCLEAR SERVICES CORP. |
| To: | |
| Shared Package | |
| ML19331B914 | List: |
| References | |
| NUDOCS 8008130525 | |
| Download: ML19331B916 (5) | |
Text
,
s O
w INSTRUMENT ERROR ANALYSIS FOR FORT CALHOUN CLRT a
January 1980 Prepared for 5
Omana Public Pow'er District 1
By i
Nuclear Services Corporation 2622 E. 21st.' St.
Tulsa, OK 74114 1
(918)749-2582 Prepared _by: R.L. Novgrod C.B.Noland(,,,d-c
. Reviewed by:
C.W. Rowley f
Approved by:
July 11, 1980 OMA-0110 T-8068130 -DD
l ".
v
.l" INSTRUMENT ERROR ANALYSIS I.
Instrumentation A.
Pressure Digital Readout Inst #
PI-1, PI-2 Mfg Mensor Corp.
Type Bourdon Tube Capsule & Precision Pressure Gage Range 0-100 psia Stability i.002 psi I
Repeatability 1 0005 psi Resolution i.001 psi Accuracy i.015 psi 1i B.
Teiaperature Elements Inst #
T-001 through T-030 Mfg 1 Hy-Cal Engrg
.1 Type 100 0 Platium RTD Range Calibrated for 60, 85, and 110 F
. Repeatability &
4 Hysteresis
+ 0.1 F Accuracy
[0.02F C.
Dew Point Measurement System Inst #
DPT-31 through DPT-40 Mfg Volumetrics t
Model Dewcell
~
Range Calibrated for 50, 80, 100 F Accuracy 1 00726 psi Repeatability.
1 002 psi Stability (for threedays) 1 00006 psi F,
H D.
Readout System i.-
Mfg Data logger Model 3000~
accuracy
+.19 F
+.0024 psi repeatability T.05 F T.0006. psi i
stability
[.05F 1 0006 psi
E.
Flow Measurement System Inst #
FI-l Mfg Fisher-Porter Model 087-615-588 Calibration
.4 to 4 scfm of air 0 60 psig & 80 F Accuracy
+ 1% of full scale c-II.
Formula EL = 100
?p{py+2)
+2t py a
~'
where:
E = error in leakage rate in % by weight per day L
E = pressure instrument error po. inst.
j...
p
= error in total absolute pressure in psia E =. temperature instrument error no inst.
T
= error in temperature in 'R Ey = vapor pressure instr 3 ment error no. inst.
= error in water vapor pre-ssure in psia Assuming:
~
~
A.
Initial and final temperatures are identical B.
Initial and final pressures are identical III.
Calculation of Ep (repeatability)2 + (resolution)2 + (stability)2 E
=
p
- of senors
(.0005)2 + (.001)2 + (.002)2
=
2 1 6 202 x 10-3 psi
=
1 L-
e f:
1 IV. Calculation of E T (repeatability)2 (repeatability of)2
[ stability of)2 data logger E
f RTD data logger
=
T
- sensors
(.1)2 + (.05)2 + (.05)2 30 Q
.02236 F
=
V.
Calculation of Ey
+ (of readoutrepeatability)2, (of readou stability
("E** *ofdetector) + (o*f detector)
Y E
=
V
- of sensors
(.002)2 + (.00006)2 + (.0006)2 + (.0006)2 9
J
.00072 psi
=
VI. Calculation of E L
/
py)2
+2(ppy)2 E = 100 2
=2 t
= 100^
2(.00
+2(*0
+2(.00 2)2 2
- 30 6
=.0068% by wt/ day I
i
?
P I
VII. Calculation of E p Standard conditions for the flowmeters are defined as 14.73 psia and 60 F.
FlowmeterAccuracy=I{004'
=.04 scfm Flowmeter Error = E
=P F
60 T
- 60 x 24 x 100 x.04 T
9-Pv 1.05 x 106 80 l-
, 60 + 14.7 76 + 460 x
x.137 x.04 =.0054 80 + 460 75.107.143 4
VIII. Calculation of r /
1 E'=EL+Ep =.0068 +.0054 =.0122% by wt/ day o
N 2
em k
L m
W W
t
,