FprEN ISO 12759-5

Fans - Efficiency classification for fans - Part 5: Jet fans (ISO/FDIS 12759-5:2021)

Ventilatoren - Effizienzklassifizierung für Ventilatoren - Teil 5: Strahlventilatoren (ISO/FDIS 12759-5:2021)

Dieses Dokument legt eine Klassifizierung des Ventilatorwirkungsgrades für Strahlventilatoren jeglicher Bauart fest, die von Motoren mit einer elektrischen Eingangsleistung im Bereich von 5,5 kW bis 155 kW angetrieben werden (dies entspricht in etwa dem Größenbereich von 500 mm bis 1 600 mm Durchmesser und Motoren im Nennleistungsbereich zwischen 5,5 kW und 150 kW nach IEC 60034 34 1).
Dieses Dokument ist nicht anwendbar auf Strahlventilatoren für den Einsatz in geschlossenen Parkhäusern.
Dieses Dokument kann durch Gesetzgeber oder Regulierungsbehörden für die Festlegung zukünftiger Ziele zur Energieeinsparung genutzt werden.

Ventilateurs - Classification du rendement des ventilateurs - Partie 5 : Ventilateurs accélérateurs (ISO/FDIS 12759-5:2021)

Ventilatorji - Klasifikacija učinkovitosti ventilatorjev - 5. del: Potisni ventilatorji (ISO/FDIS 12759-5:2021)

General Information

• Status: Not Published
• ICS: 23.120 - Ventilators. Fans. Air-conditioners
• Technical Committee: CEN/TC 156 - Ventilation for buildings
• Drafting Committee: CEN/TC 156 - Ventilation for buildings
• Current Stage: 6055 - CEN Ratification completed (DOR) - Publishing
• Due Date: 28-Jun-2021
• Completion Date: 28-Jun-2021
• Ref Project: kSIST FprEN ISO 12759-5:2021 - Fans - Efficiency classification for fans - Part 5: Jet fans (ISO/FDIS 12759-5:2021)

RELATIONS

• Revised: EN ISO 12759:2015 - Fans - Efficiency classification for fans (ISO 12759:2010, including Amd 1:2013)
• Effective Date: 27-Jul-2016

Standards Content (sample)

SLOVENSKI STANDARD
oSIST prEN ISO 12759-5:2019
01-maj-2019
[Not translated]

Fans - Efficiency classification for fans - Part 5: Jet fans (ISO/DIS 12759-5:2019)

Ventilatoren - Effizienzklassifizierung für Ventilatoren (ISO/DIS 12759:2019)

Ventilateurs - Classification du rendement des ventilateurs - Partie 5 : Ventilateurs

accélérateurs (ISO/DIS 12759-5:2019)
Ta slovenski standard je istoveten z: prEN ISO 12759-5
ICS:
23.120 =UDþQLNL9HWUQLNL.OLPDWVNH Ventilators. Fans. Air-
QDSUDYH conditioners
oSIST prEN ISO 12759-5:2019 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 12759-5:2019
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oSIST prEN ISO 12759-5:2019
DRAFT INTERNATIONAL STANDARD
ISO/DIS 12759-5
ISO/TC 117 Secretariat: BSI
Voting begins on: Voting terminates on:
2019-04-02 2019-06-25
Fans — Efficiency classification for fans —
Part 5:
Jet fans
ICS: 23.120
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 12759-5:2019(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. ISO 2019
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oSIST prEN ISO 12759-5:2019
ISO/DIS 12759-5:2019(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2019

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting

on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address

below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
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Phone: [phone]
Fax: [phone]
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Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
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oSIST prEN ISO 12759-5:2019
ISO/DIS 12759-5:2019(E)
Contents  Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1  Scope ................................................................................................................................................................................................................................. 1

2  Normative references ...................................................................................................................................................................................... 1

3  Terms and definitions ..................................................................................................................................................................................... 1

3.1 Fans — General ....................................................................................................................................................................................... 2

3.2 Fan or test installation categories according to the arrangement of ducting ................................... 2

3.3 Fans — Definitions relating to calculations ................................................................................................................... 2

3.4 Definitions relating to fan efficiency .................................................................................................................................... 4

3.5 Fan efficiency grades.......................................................................................................................................................................... 4

4  Symbols and Units ............................................................................................................................................................................................... 4

5  Fan installation, efficiency and tolerance ................................................................................................................................... 5

5.1 General ........................................................................................................................................................................................................... 5

5.2 Reference Configuration of a Jet Fan can be defined as: ..................................................................................... 5

5.3 Use of installation categories ...................................................................................................................................................... 5

6  Ratings............................................................................................................................................................................................................................. 6

6.1 General ........................................................................................................................................................................................................... 6

6.2 Jet fans ............................................................................................................................................................................................................ 6

Annex A (Normative) Calculation of Jet Fan Efficiency ...................................................................................................................... 9

Annex B (normative) Determination of efficiency grade for a jet fan .............................................................................11

Bibliography .............................................................................................................................................................................................................................12

© ISO 2019 – All rights reserved iii
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oSIST prEN ISO 12759-5:2019
ISO/DIS 12759-5:2019(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment,

as well as information about ISO's adherence to the World Trade Organization (WTO) principles in the

Technical Barriers to Trade (TBT) see the following URL: www .iso .org/iso/foreword .html.

The committee responsible for this document is Technical Committee ISO/TC 117 Fans.

A list of all parts in the ISO 12759:— series can be found on the ISO website.
iv © ISO 2019 – All rights reserved
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oSIST prEN ISO 12759-5:2019
ISO/DIS 12759-5:2019(E)
Introduction

The last decade has seen not only an escalation in the price, but also an increasing recognition of the

finite life of many of the fossil fuels in use. There is also a belief that climatic change is due to an increase

in the levels of carbon dioxide in the atmosphere. This has resulted in many nations reviewing methods

of energy generation and usage.

Therefore, there is a need to promote energy efficiency in order to maintain economic growth. This

requires better selection of equipment by users and better design of this equipment by manufacturers.

Fans of all types are used for ventilation and air conditioning, process engineering (drying, pneumatic

conveying), combustion air supply and agriculture, etc. Indeed, the energy usage by fans has been

calculated as nearly 20 % of worldwide demand.

The fan industry is of a global nature, with a considerable degree of exporting and licensing. To ensure

that defined fan performance characteristics are common throughout the world, a series of International

Standards has been developed. It is the belief of the industry that there is a need for the recognition of

minimum efficiency standards. To encourage their implementation, a classification system is proposed

which incorporates a series of efficiency bands. With improvements in technology and manufacturing

processes, the minimum efficiency levels can be reviewed and increased over time.

This International Standard can be used by legislators or regulatory bodies for defining future energy

saving targets.
Part 5 is specific to Jet Fans whose efficiency ratings are based on Thrust.
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oSIST prEN ISO 12759-5:2019
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oSIST prEN ISO 12759-5:2019
DRAFT INTERNATIONAL STANDARD ISO/DIS 12759-5:2019(E)
Fans — Efficiency classification for fans —
Part 5:
Jet fans
1  Scope

This International Standard establishes a classification of fan efficiency for all jet fan types driven by

motors with an electrical input power range from 5.5 kW to 155 kW (and this is likely to be in the size

range 500 to 1600 mm diameter with motors rated between 5.5 kW to 150 kW from IEC 60034-34-1).

This standard describes a number of different procedures to classify the efficiency of a fan or to apply

a minimum efficiency limit (MEL). Those procedures are described in parts 3, 4, 5 and 6. There is no

method described to compare these classifications and MEL’s. Direct comparison shall not be made

between the classifications and MEL’s described in parts 3, 4, 5 and 6.
This International Standard is not applicable to:
a) Jet fans for use in enclosed car parks
2  Normative references

The following referenced documents are indispensable for the application of this document. For dated

references, only the edition cited applies. For undated references, the latest edition of the referenced

document (including any amendments) applies.

ISO 13348:2007, Industrial fans — Tolerances, methods of conversion and technical data presentation

ISO 13349:2010, Fans — Vocabulary and definitions of categories
ISO 13350:2015, Fans — Performance testing of jet fans

EN 12101-3:2015, Smoke and heat control systems. Specification for powered smoke and heat control

ventilators (Fans)

IEC 60034-2-1, Rotating electrical machines — Part 2-1: Standard methods for determining losses and

efficiency from tests (excluding machines for traction vehicles)

IEC 60034-30-1, Rotating electrical machines — Part 30-1: Efficiency classes of single-speed, three-phase,

squirrel-cage induction motors
3  Terms and definitions
For the purposes of this document, the following terms and definitions apply.
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oSIST prEN ISO 12759-5:2019
ISO/DIS 12759-5:2019(E)
3.1  Fans — General
3.1.1
Fan

Rotary bladed machine which receives mechanical energy and utilizes it by means of one or more

impellers fitted with blades to maintain a continuous flow of air or other gas passing through it and

whose work per unit mass does not normally exceed 25 kJ/kg

Note 1 to entry: Fans are defined according to their installation category, function, fluid path and operating

conditions.
Note 2 to entry: Adapted from ISO 13349:2010, definition 3.1.1.
3.1.2
Jet fan

fan used for producing a jet of air in a space and not connected to any ducting, that is t

...