ASME PTC 19.1 1998

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ASME PTC 19.1 Test Uncertainty

Published By	Publication Date	Number of Pages
ASME	1998	126

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Description

PDF Catalog

PDF Pages	PDF Title
4	Foreword
6	Committee Roster
7	Board Roster
8	Contents
12	1 Introduction
14	2 Object and Scope
16	3 Definitions and Description of Terms
20	4 Fundamental Concepts
21	4.1 Illustration of Measurement Errors
22	4.2 Measurement Error Components
23	4.3 Distribution of Measured Values (Normal Distribution)
24	4.1 Discharge Pressure Test Data With N = 37 (Example 4.5-1)
25	4.4 Test Data (Example 4.5-1)
26	5 Defining the Measurement Process
27	5.1 Generic Measurement Calibration Hierarchy
30	6 Uncertainty of a Measurement
31	6.1 Pressure Data Acquisition System
32	6.2 Uncertainty Interval
34	7 Uncertainty of a Result
38	8 Additional Uncertainty Considerations
39	8.1 Burst Pressures (Example 8.1)
41	8.1 Schematic Relation Between Parameters Characterizing Nonsymmetric Uncertainty
43	8.2 Relation Between Parameters Characterizing Nonsymmetric Uncertainty
45	8.3 Three Posttest Cases
48	9 Step-by-Step Calculation Procedure
49	9.1 Table of Data (Example 10.2) 9.2 Summary of Data (Example 10.2)
51	9.3 Report of Results (Example 10.2) 9.4 Report of Results (Example 10.2)
52	9.5 Summary of Results (Example 10.2)
54	10 Examples
55	10.1 Traverse Points (Example 10.1) 10.1 Average Values (Example 10.1)
56	10.2 Summary of Average Velocity Calculation (Example 10.1) 10.3 Standard Deviations (Example 10.1)
57	10.4 Standard Deviation of Average Velocity (Example 10.1) 10.5 Uncertainty Due to Spatial Variation (Example 10.1)
58	10.6 Uncertainty of Measurement (Example 10.1)
59	10.2 Schematic of a 6 x 4 in. Venturi 10.7 Uncalibrated Case (Example 10.2)
60	10.8 Relative Sensitivity Coefficients in Example 10.2 (Calculated Numerically)
61	10.9 Absolute Sensitivity Coefficients in Example 10.2 (Calculated Analytically)
62	10.10 Absolute Contributions of Systematic and Random Uncertainties of Independent Parameters (Example 10.2) 10.11 Summary: Nominal Value; Systematic, Random, and Total Uncertainties in Absolute Terms for m 10.12 Relative Uncertainty of Measurement (Example 10.2)
63	10.13 Relative Contributions of Systematic and Random Uncertainties of Independent Parameters (Example 10.2) 10.14 Summary: Nominal Value; Systematic, Random, and Total Uncertainties in Relative Terms for the Uncalibrated Case (Example 10.2) 10.15 Relative Uncertainties of Independent Parameters (Example 10.2)
64	10.16 Relative Contributions of Systematic and Random Uncertainties of Independent Parameters (Example 10.2) 10.17 Summary: Nominal Value; Systematic, Random, and Total Uncertainties in Relative Terms for the Calibrated Case (Example 10.2)
65	10.18 Results of Uncertainty Analysis (Example 10.3) 10.19 Input Systematic and Random Uncertainties (Example 10.4)
66	10.3 Typical Pressure and Temperature Locations for Compressor Efficiency Determination
67	10.20 Systematic and Random Uncertainties (Example 10.4) 10.21 Result Systematic and Random Uncertainties (Example 10.4)
68	10.22 Specified Conditions (Example 10.5)
69	10.4 Simplified Flow and Instrumentation Diagram for a Nonextraction Condensing Turbine
70	10.23 Summary of Test Data (Example 10.5)
71	10.5 Generator Electrical Losses [12] (Example 10.5)
72	10.6 Throttle Pressure Correction [12] (Example 10.5)
73	10.7 Throttle Temperature Correction [12] (Example 10.5)
74	10.8 Exhaust Pressure Correction [12] (Example 10.5) 10.24 Throttle Pressure Elemental Uncertainties (Example 10.5)
75	10.25 Throttle Temperature Elemental Uncertainties (Example 10.5) 10.26 Exhaust Pressure Elemental Uncertainties (Example 10.5)
77	10.27 Condensate Flow Elemental Uncertainties (Example 10.5) 10.28 Generator Output Elemental Uncertainties (Example 10.5) 10.29 Generator Hydrogen Pressure Elemental Uncertainties (Example 10.5)
78	10.30 Cycle Leakage/Storage Elemental Uncertainties (Example 1 0.5) 10.31 Measurement Uncertainty Summary (Example 10.5)
79	10.32A Numerical Development of Sensitivity Coefficients (Example 10.5)
80	10.32B Numerical Development of Sensitivity Coefficients (Example 10.5)
81	10.33 Propagation of Measurement Uncertainties (Example 10.5) 10.34 Uncertainty of Result (Example 10.5) 10.35 Pump Design Curve Data With Tc = 20 deg C (Example 10.6)
82	10.36 Test Results (Example 10.6)
84	10.9 Installed Arrangement (Example 10.6) 10.10 Pump Design Curve With Factory and Field Test Data Shown (Example 10.6)
85	10.11 Comparison of Test Results With Independent Control Condition (Example 10.6) 10.37 Test Results (Example 10.6) 10.38 Uncertainty Propagation for Comparison With Independent Control (Example 10.6)
86	10.12 Comparison of Test Results Using the Initial Field Test as the Control (Example 10.6)
87	10.39 Uncertainty Propagation for Comparative Uncertainty (Example 10.6)
88	10.40 Sensitivity Coefficient Estimates for Comparative Analysis (Example 10.6)
90	11 References
92	12 Bibliography
94	A Statistical Considerations
106	B Uncertainty Analysis Models
112	C Propagation of Uncertainty Through Taylor Series
118	D Uncertainty of Derived Results on X-Y Plots