FOREWORD
PREFACE
References
Part 1 - General Rules
INTRODUCTION
Chapter 1: Object and Scope
1 General
2 Types of pumps
3 Excluded topics
Chapter II - Terms, Definitions, Symbols and Units
4 Units
5 List of terms
5.1 Discharge or rate of flow
5.2 Area
5.3 Mean velocity
5.4 Pressure
5.5 Gravity and weight
5.6 Head and specific energy
5.7 Output and input
5.8 Losses and efficiency
5.9 Rotational speed
5.10 Clarification
5.11 Subscripts in capital letters
6 Clarification
7 Density of water
8 Acceleration due to gravity
9 Vapour pressure of distilled water
Chapter III: Nature and Extent of Technical Guarantees
10 General
11 Main guarantees
11.1 Discharge
11.2 Efficiency
11.3 Scale-up of hydraulic efficiency
12 Other guarantees
12.1 Maximum pump input
12.2 Head and power absorption at zero discharge
12.3 Reverse runaway speed
12.4 Reverse runaway discharge
13 Performance under cavitation
Chapter IV: Test Conditions to be Fulfilled
14 Test plants
14.1 Conditions of the water
14.2 Flow conditions
14.3 Fluctuations during a test series
14.4 Measurement of the water discharge
14.5 Water leakage losses
14.6 Heads
14.7 Torque
14.8 Speed
15 Model similitude
15.1 Model size and test head
15.2 Geometrical and hydraulic similarity
15.3 Checking the geometrical similarity of model and
protype pump
15.4 Permissible deviations in geometrical similarity
between prototype and model
15.5 Correlation between impeller blade and guide vane
setting in pumps having variable impeller blades
and guide vanes
Chapter V: Test Procedure
16 Choice of laboratory
17 Time for tests
18 Personnel
19 Test programme
20 Inspection
21 Calibration of instruments
22 Prelimiary tests
22.1 Execution of tests
22.2 Mechanical faults
23 Records
24 Repetition of tests
Chapter VI: Computation of Results
25 General
25.1 Calculations of prototype performance
25.2 Comparison with guaranteed efficiency
25.3 Comparison with scaled-up model efficiency
25.4 Comparison with guaranteed model input
25.5 Comparison with prototype input
26 Inaccuracies in measurements
26.1 General
26.2 Random and systematic errors
27 Errors in individual measurements
27.1 Rate of flow
27.2 Free level
27.3 Pressure
27.4 Input
27.5 Time
27.6 Pump head H
28 Pump efficiency
29 Random errors in measurement
30 Application of scale formulae
31 Comparison with main guarantees
31.1 Guarantee for discharge
31.2 Guarantee for efficiency
31.3 Invalid measured points
Chapter VII: Final Report
32 Final details
PART 2 - METHODS OF MEASUREMENT
Chapter VIII: Methods of Discharge Measurement
33 General
34 Discharge measurements by volumetric measurement
34.1 Installation
34.2 Drain valve
34.3 Measurement of height of water surface
34.4 Method of inflow
34.5 Method of operation
34.6 Corrections
34.7 Use of two calibrated reservoirs
35 Gravimetric method
35.1 Collecting tank
35.2 Weighing devices
35.3 Switching and timing
35.4 Method of operation
35.5 Precautions
36 Anderson's movable screen
36.1 Basic principles
36.2 Installations
36.3 Measurement of the travel velocity of the
screen
36.4 Determination of the channel cross-section
36.5 Controls during the run
37 Weirs
38 Differential meters
39 Other methods
Chapter IX: Methods of Head Measurement
40 General
41 Fire water level
42 Measuring apparatus for free water level
42.1 Point or hook gauges
42.2 Float gauges
42.3 Liquid manometer
43 Static pressure measurement
43.1 Choice of measuring section
43.2 Number and location of pressure holes
43.3 Static pressure holes
43.4 Pressure pipe connection
44 Pressure-measuring instruments
44.1 Liquid-column manometers
44.2 Weight manometer
44.3 Pressure weighbeams
44.4 Spring pressure gauges
45 Damping devices
46 Checking all manometers
47 Vacuum measurements
47.1 General
42.2 Vacuum pipe connections
Chapter X: Methods of Power Input Measurement
48 General
49 Torque measurement
49.1 Torque reaction dynamometer
49.2 Torsion dynamometer
50 The avoidance of torque errors in torque reaction
dynamometers
50.1 Fixing of dynamometer
50.2 Cooling fluid connections
50.3 Support bearings
50.4 Electrical leads
50.5 Calibration
51 Speed measurements
52 Losses
Chapter X!: Cavitation Tests
Introduction
53 Object and scope
54 Guarantees for the influence of cavitation
54.1 General
54.2 Guarantees concerning alteration of efficiency
54.3 Guarantees concerning reverse runaway speed
and/or runaway discharge
54.4 Limitation of guarantees for cavitation
54.5 Additional information not subject to guarantee
55 Test installations
55.1 General characteristics of the circuit
55.2 Model dimensions
55.3 Viewing conditions
55.4 Flow conditions in the model
56 Test conditions
56.1 Properties of the water
56.2 Air content
56.3 Temperature
57 Test conditions
57.1 Similitude
57.2 Hydraulic similitude: conditions to be fulfilled
57.3 Geometric similitude
58 Execution of the cavitation tests
58.1 Testing programme
58.2 Testing procedure
58.3 Reverse runaway tests
58.4 Cavitation curves
59 Interpretation of tests
59.1 Interpretation of cavitation model tests
59.2 Inaccuracies in measurements
59.3 Drawing of cavitation curves
59.4 Methods of interpretation
Appendix A - Methods of measuring and specifying impeller
outlet geometry for radial and semi-axial pumps
Figures