ISO 8933-2:2024
(Main)Ships and marine technology — Energy efficiency — Part 2: Energy efficiency of maritime functional systems
Ships and marine technology — Energy efficiency — Part 2: Energy efficiency of maritime functional systems
This document specifies generic measuring and calculation methods to evaluate the energy efficiency of multiple components connected in a functional system installed on board ships, vessels for inland navigation and offshore structures. A maritime functional system consists of multiple components integrating multiple functions, working together to achieve an overall goal. The purpose of this document is to show how the energy efficiency of various functional systems correspond to the other installations on board of same functionality, thus ensuring that efficient design is rewarded. Maritime systems are grouped according to their functionality, to compare the energy efficiency of functional systems which can fulfil the same task on board a ship. This document is applicable to only the functional systems for which a unit output can be clearly defined, and which require energy to function. This document is applicable to energy consuming functional systems. It does not provide a life cycle assessment (LCA). NOTE An LCA can prove useful when considering systems which consume substances, and which would not meet the functional requirements without the use of these substances. An example is a ballast water management system (BWMS) using active substances (these types are not considered in this document). This document is applicable to the following five types of functional systems: a) pressure and flow; b) lighting; c) heating and cooling; d) mechanical; e) propulsion.
Navires et technologie maritime — Efficacité énergétique — Partie 2: Efficacité énergétique des systèmes fonctionnels maritimes
General Information
Standards Content (Sample)
International
Standard
ISO 8933-2
First edition
Ships and marine technology —
2024-08
Energy efficiency —
Part 2:
Energy efficiency of maritime
functional systems
Navires et technologie maritime — Efficacité énergétique —
Partie 2: Efficacité énergétique des systèmes fonctionnels
maritimes
Reference number
© ISO 2024
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
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
Contents Page
Foreword .vi
Introduction .vii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms. 2
5 Methods to evaluate the energy efficiency of maritime functional systems. 3
6 Pressure and flow functional systems . 4
6.1 General .4
6.2 Ballast water management system .5
6.2.1 General .5
6.2.2 Ultraviolet treatment systems .6
6.2.3 Electro-chlorination treatment systems .8
6.3 Freshwater generator .10
6.3.1 General .10
6.3.2 Definition of input and output .11
6.3.3 Definitions of boundaries and media .11
6.3.4 Calculation method .11
6.3.5 Measuring method . 13
6.3.6 Example of measuring and calculations .14
6.4 Seawater cooling system . 15
6.4.1 General . 15
6.4.2 Definition of input and output . 15
6.4.3 Definitions of boundaries and media . 15
6.4.4 Calculation method .16
6.4.5 Measuring method .17
6.4.6 Example of measuring and calculation .17
6.5 Freshwater cooling system .18
6.5.1 General .18
6.5.2 Definition of input and output .18
6.5.3 Definitions of boundaries and media .18
6.5.4 Calculation method .19
6.5.5 Measuring method . 20
6.5.6 Example of measuring and calculation . 20
6.6 Engine lube oil system .21
6.6.1 General .21
6.6.2 Definition of input and output .21
6.6.3 Definitions of boundaries and media .21
6.6.4 Calculation method . 22
6.6.5 Measuring method . 23
6.6.6 Example of measuring and calculation .24
6.7 Steam boiler system, thermal fluid system and hot water system .24
6.7.1 General .24
6.7.2 Definition of input and output . 25
6.7.3 Definitions of boundaries and media . 25
6.7.4 Calculation method . 26
6.7.5 Measuring method .27
6.7.6 Example of measuring and calculation . 28
6.8 Cargo pump system . 29
6.8.1 General . 29
6.8.2 Definition of input and output . 29
6.8.3 Definitions of boundaries and media . 29
6.8.4 Calculation method . 30
iii
6.8.5 Measuring method .31
6.8.6 Example of measuring and calculation .31
6.9 Cargo heating system .32
6.9.1 General .32
6.9.2 Definition of input and output .32
6.9.3 Definitions of boundaries and media .32
6.9.4 Calculation method . 33
6.9.5 Measuring method . 34
6.9.6 Example of measuring and calculation . 34
6.10 Volatile organic compound recovery system . 34
6.10.1 General . 34
6.10.2 Definition of input and output . 34
6.10.3 Definitions of boundaries and media . 35
6.10.4 Calculation method . 35
6.10.5 Measuring method . 36
6.10.6 Example of measuring and calculation .37
6.11 Separator system .37
6.11.1 General .37
6.11.2 Definition of input and output . 38
6.11.3 Definition of boundaries and media .
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.