Notice
Foreword
Committee Roster
Correspondence With the PTC 11 Committee
1 Object and Scope
1-1 Object
1-2 Scope
1-3 Applicability
1-4 Uncertainty
2 Definitions of Terms, Symbols, and Their Descriptions
2-1 Symbols
2-2 Definitions
3 Guiding Principles
3-1 Introduction
3-2 Prior Agreements
3-3 Code Philosophy
3-4 System Design Considerations
3-5 Internal Inspection and Measurement of Cross Section
3-6 Test Personnel
3-7 Point of Operation
3-8 Method of Operation During Test
3-9 Inspection, Alterations, and Adjustments
3-10 Inconsistencies
3-11 Multiple Inlets or Ducts
3-12 Preliminary Test
3-13 Reference Measurements
4 Instruments and Methods of Measurement
4-1 General Considerations
4-2 Traverse Specifications
4-3 Barometric Pressure
4-4 Temperature
4-5 Moisture
4-6 Gas Composition
4-7 Pressure Sensing
4-8 Pressure Indicating
4-9 Yaw and Pitch
4-10 Rotational Speed
4-11 Input Power
5 Computation of Results
5-1 General Considerations
5-2 Correction of Traverse Data
5-3 Gas Composition
5-4 Density
5-5 Fluid Velocity
5-6 Mass Flow Rate
5-7 Flow-Weighted Averages
5-8 Fan Input Power
5-9 Fan Speed (Slip Method)
5-10 Mass Flow Rate: Specific Energy Approach
5-11 Volume Flow Rate: Pressure Approach
5-12 Inlet Flow Distortion
5-13 Uncertainties
6 Report of Results
6-1 General Requirements
6-2 Executive Summary
6-3 Introduction
6-4 Calculations and Results
6-5 Instrumentation
6-6 Conclusions
6-7 Appendices
7 Uncertainty Analysis
7-1 Introduction
7-2 Uncertainty Propagation Equations
7-3 Assigning Values to Primary Uncertainties
7-4 Fan Mass Flow and Uncertainty for Multiple Traverse
Planes
Mandatory Appendix
I - Reduced Load Fan Input Power Determination
Nonmandatory Appendices
A - Data Sheets
B - Sample Calculations
C - Method of Approaching a Specified Point of Operation
D - Derivations of Uncertainties Equations
E - References and Further Reading