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BS ISO 12759-6:2024

BS ISO 12759-6:2024

$189.07

Fans. Efficiency classification for fans – Calculation of the fan energy index

Published By Publication Date Number of Pages
BSI 2024 50
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PDF Catalog

PDF Pages PDF Title
2 undefined
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms, definitions and symbols
10 3.1 Terms and definitions
3.1.1 General terms
12 3.1.2 Impeller types
13 3.1.3 Fan types
15 3.2 Symbols
4 General
4.1 Minimum testable configuration
16 4.2 FEI pressure basis
4.3 Appurtenances
17 4.4 Fans embedded in other equipment
5 Fan energy index
5.1 General
5.2 Reference electrical input power
5.2.1 General
18 5.2.2 Reference shaft power
19 5.2.3 Reference transmission efficiency
5.2.4 Reference motor efficiency
20 5.2.5 Reference motor controller efficiency
5.3 Actual fan electrical input power
5.3.1 General
21 5.3.2 Measurement of fan electrical input power
22 5.3.3 Fan electrical input power calculation using ISO 12759-2
5.3.4 Combined fan shaft power with tested motor or motor and controller
24 5.3.5 Fan electrical input power calculation for fans with motors of unknown efficiency
25 6 Use of FEI
6.1 Requirements for use of FEI
6.2 Published FEI values
26 Annex A (normative) Fan types, test configurations and FEI pressure basis
29 Annex B (informative) Usage of FEI
35 Annex C (informative) Fan arrays
37 Annex D (informative) Practical issues with embedded fans
38 Annex E (informative) Electrical power measurement — Calculation to other speeds and densities
44 Annex F (informative) Basis for the reference electrical input power calculations
48 Bibliography

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BS ISO 12759-6:2024
$189.07