Standard
Track updates
AS/NZS 5801:2024
[Current]Fans - Performance testing using standardized airways (ISO 5801:2017, MOD)
AS/NZS 5801:2024 adopts and modifies ISO 5801:2017, which specifies procedures for the determination of the performance of fans of all types except those designed solely for air circulation, e.g. ceiling fans and table fans
Published: 10/05/2024
Pages: 137
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols, abbreviated terms and subscripts
4.1 Symbols and abbreviated terms
4.2 Subscripts
5 General
6 Test configurations
6.1 General
6.2 Category A configuration
6.3 Category B configuration
6.4 Category C configuration
6.5 Category D configuration
6.6 Inlets and outlets
6.7 Fans with significant swirl
6.8 Airways
6.9 Test space
6.10 Leakage
6.11 Test report
7 Carrying out the test
7.1 Working fluid
7.2 Rotational speed
7.3 Steady operation
7.4 Ambient conditions
7.5 Pressure readings
7.6 Test for a specified duty
7.7 Test for a fan characteristic curve
7.8 Operating range
8 Airways for duct simulations
8.1 General
8.2 Common segments at fan inlet (iCS)
8.3 Inlet duct simulation (iDS)
8.4 Common segment at fan outlet (oCS)
8.5 Outlet duct simulation (oDS)
8.6 Long duct (LD)
8.7 Loss allowances for standardized airways
8.7.1 Loss allowances for an inlet common segment (iCS)
8.7.2 Loss allowances for inlet duct simulation (iDS)
8.7.3 Loss allowances for outlet common segments (oCS)
8.7.3.1 With a star straightener (oCS)star
8.7.3.2 With a cell straightener (oCS)cell
8.7.4 Loss allowances for duct simulation at outlet (oDS)
8.7.5 Loss allowances for long duct (LD)
8.7.5.1 With a star straightener (LD)star
8.7.5.2 With a cell straightener (LD)cell
9 Standardized test chambers
9.1 General
9.2 Pressure tappings
9.3 Flow-settling means
9.3.1 General
9.3.2 Piezometer ring check
9.3.3 Blow through verification test
9.3.4 Outlet chamber reverse flow verification test
9.4 Standardized inlet test chambers (iTC)
9.4.1 Test chambers
9.4.2 Fan under test
9.5 Standardized outlet test chambers (oTC)
9.5.1 Test chambers
9.5.2 Fan under test
10 Various component parts for a laboratory setup
10.1 General
10.2 Variable supply system
10.2.1 General
10.2.2 Throttling device
10.2.3 Auxiliary fan
10.3 Straightener
10.3.1 General
10.3.2 Cell straightener
10.3.3 Star straightener
10.4 Transition parts
10.4.1 General
10.4.2 Rectangular/circular transition
10.4.3 Circular/circular transition
10.4.4 Connection for double-inlet fans
11 Standard test configurations
11.1 Units
11.2 Measuring flow rate
11.3 Standard test configurations A
11.4 Standard test configurations B
11.5 Standard test configurations C
11.6 Standard test configurations D
12 Measurements
12.1 Calibration
12.2 Dimensions and cross-sectional areas
12.2.1 Tolerance on dimensions
12.2.2 Cross-sectional area
12.2.2.1 Circular sections
12.2.2.2 Rectangular sections
12.3 Rotational speed
12.4 Power input
12.4.1 General
12.4.2 Motor input power
12.4.2.1 General
12.4.2.2 Motor directly fed by the grid
12.4.2.3 Motor fed from a variable frequency speed device
12.4.3 Fan shaft power
12.4.3.1 General
12.4.3.2 Reaction dynamometer
12.4.3.3 Torsion meter
12.4.3.4 Determination by electrical measurement
12.4.3.4.1 Summation of losses
12.4.3.4.2 Calibrated motor
12.4.4 Impeller power
12.4.5 Transmission systems
12.5 Mass flow rate
12.6 Temperature
12.6.1 General
12.6.2 Accuracy of temperature measurement
12.6.3 Correction for high velocities
12.7 Humidity
12.8 Pressure
12.8.1 Barometers
12.8.2 Manometers
12.8.3 Damping of manometers
12.8.4 Checking of manometers
12.8.5 Position of manometers
12.8.6 Average pressure in an airway
12.8.7 Construction of tappings
12.8.8 Position and connections
12.8.9 Methods of measurement
12.8.10 Checks for compliance
12.8.11 Use of Pitot-static tube
12.9 Air properties
12.9.1 General
12.9.2 Density of air at section x
12.9.3 Air viscosity
12.9.4 Standard air
13 Reference conditions
14 General rules for conversion of test results
14.1 General
14.2 Laws on fan similarity
14.2.1 General
14.2.2 Geometrical similarity
14.2.3 Reynolds number similarity
14.2.4 Mach number and similarity of the velocity triangles
15 Calculations
15.1 Test results
15.1.1 General
15.1.2 Temperature
15.1.3 Pressure
15.1.4 Set of formulae
15.1.4.1 General
15.1.4.2 Formula set a
15.1.4.3 Formula set b
15.1.5 Simplified sets of formulae, which can be used for v2.ref ≤ 65m/s
15.1.5.1 Simplified formula set a
15.1.5.2 Simplified formula set b
15.1.6 Fan pressure
15.1.7 Fan static pressure
15.1.8 Volume flow rate of the fan
15.1.9 Fan air power and efficiency
15.1.9.1 General
15.1.9.2 Calculation of fan air power from fan work per unit mass (first method)
15.1.9.3 Calculation of fan air power from volume flow rate and fan pressure (second method)
15.1.9.4 Calculation of fan air power from volume flow rate and fan pressure (third method)
15.2 Efficiencies
15.2.1 General
15.2.2 Fan static air power and static efficiency
15.3 Conversion rules
15.3.1 General
15.3.2 Shaft power and impeller power
16 Fan characteristic curves
16.1 Methods of plotting
16.2 Characteristic curves at constant speed
16.3 Characteristic curves at inherent speed
16.4 Complete fan characteristic curve
16.5 Test for a specified duty
16.6 Specific fan types
17 Uncertainty analysis
17.1 Principle
17.2 Pre-test and post-test analysis
17.3 Analysis procedure
17.4 Propagation of uncertainties
17.5 Reporting uncertainties
17.6 Maximum allowable uncertainties for measurements
17.7 Maximum allowable uncertainty of results
Annex A
A.1 General
A.2 In-line flowmeters (standard primary device)
A.3 Traverse methods
A.4 Determination of flow rate using multiple nozzles
A.4.1 Installation
A.4.2 Geometry
A.4.3 Calculation of mass flow rate
A.4.4 Multiple-nozzle characteristics
A.4.5 Uncertainty
A.5 Determination of flow rate using a conical or bellmouth inlet
A.5.1 Installation
A.5.2 Geometry
A.5.3 Screen loading
A.5.4 Calculation of mass flow rate
A.5.4.1 General
A.5.4.2 Conical inlet performance
A.5.4.3 Bellmouth inlet performance
A.5.5 Uncertainties
A.6 Determination of flow rate using an orifice plate
A.6.1 Installation
A.6.2 Geometry
A.6.3 Ducts
A.6.4 Calculation of mass flow rate
A.6.4.1 General
A.6.4.2 In duct Venturi nozzle
A.6.4.3 In duct orifice
A.6.4.4 Outlet orifice with wall tappings
A.6.4.5 Inlet orifice with wall tappings
A.6.4.6 Orifice plate with wall tappings in the test chamber
Annex B
Annex C
C.1 General
C.2 Pressure decay method
C.2.1 Calculations
C.2.2 Procedure
C.3 Flowmeter method
C.4 Two-phase method
C.4.1 General
C.4.2 First phase
C.4.3 Second phase
Annex D
Annex E
E.1 General
E.2 Power consumption calculation
E.2.1 General
E.2.2 Impeller power
E.2.3 Fan shaft power
E.2.4 Rolling element bearing friction power
E.2.5 Transmission power
E.2.6 Motor power
E.2.7 Controls/power loss
E.3 Mains power required
E.4 Presenting results of a typical motor and VFD while driving a fan
Annex F
Annex G
Annex H
Annex I
Annex J
Annex K
Annex L
Annex M
Annex N
N.1 Report
N.2 Example
Bibliography
Appendix ZZ
ZZ.1 Scope
ZZ.2 Modifications
Cited references in this standard
[Current]
Direct acting indicating analogue electrical measuring instruments and their accessories - Part 3: Special requirements for wattmeters and varmeters
[Current]
Direct acting indicating analogue electrical measuring instruments and their accessories - Part 2: Special requirements for ammeters and voltmeters
[Superseded]
Rotating electrical machines - Part 2-1: Standard methods for determining losses and efficiency from tests (excluding machines for traction vehicles)
One-time Purchase
Access via web browser on any device
One-time purchase
Single publication
Offline access via PDF^
$282.33 AUD
Inclusive of GSTFormat *
Web Reader
Licenses *
1 user
Total$282.33 AUD
IMPORTANT