ISO 23453:2022
(Main)Ships and marine technology — Guidelines for the design and manufacture of the hub cap with fins for a fixed-pitch marine propeller
Ships and marine technology — Guidelines for the design and manufacture of the hub cap with fins for a fixed-pitch marine propeller
This document provides general guidelines for design and manufacture of a hub vortex energy-saving device for a fixed-pitch marine propeller. This document can also apply to the design and manufacture of hub vortex energy-saving device for other types of marine propellers. According to the specific geometrical shape of the propeller and other specifications, it is suggested that hub cap with fins is used in merchant ships.
Titre manque
General Information
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 23453
First edition
2022-12
Ships and marine technology —
Guidelines for the design and
manufacture of the hub cap with fins
for a fixed-pitch marine propeller
Reference number
ISO 23453:2022(E)
© ISO 2022
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ISO 23453:2022(E)
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© ISO 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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ISO 23453:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Guidelines for HCWF design and manufacture . 2
4.1 Hydrodynamic performance and energy-saving effect evaluation . 2
4.2 Manufacture. 2
4.3 Tightness test . 3
4.4 Accessibility . 3
5 Hydrodynamic design procedure of HCWF . 3
5.1 Applicability analysis . 3
5.2 Preliminary principle dimensions and main parameters . 3
5.3 Pitch and camber distribution . . 3
5.4 V erification with open water testing . 3
5.5 V erification using full-scale tests . . 5
6 Strength check of HCWF . 5
6.1 Strength check method of HCWF . 5
6.2 Strength check method of connecting bolts between HCWF and propeller . . 6
Bibliography . 7
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ISO 23453:2022(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
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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).
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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
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 8, Ships and marine technology,
Subcommittee SC 8, Ship design.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
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ISO 23453:2022(E)
Introduction
A hub cap with fins is an energy-saving device installed behind a propeller instead of a propeller hub
cap. It rotates together with the propeller to increase the propulsion efficiency of the ship by decreasing
the energy losses caused by hub vortex. To save energy and reduce underwater noise, propeller hub
caps with fins are installed on a wide variety of ships.
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INTERNATIONAL STANDARD ISO 23453:2022(E)
Ships and marine technology — Guidelines for the design
and manufacture of the hub cap with fins for a fixed-pitch
marine propeller
1 Scope
This document provides general guidelines for design and manufacture of a hub vortex energy-saving
device for a fixed-pitch marine propeller. This document can also apply to the design and manufacture
of hub vortex energy-saving device for other types of marine propellers.
According to the specific geometrical shape of the propeller and other specifications, it is suggested
that hub cap with fins is used in merchant ships.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following address
...
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