ISO 13153:2012

INTERNATIONAL ISO
STANDARD 13153
First edition
2012-09-01
Framework of the design process for
energy-saving single-family residential
and small commercial buildings
Cadre général d'un processus de conception d'habitations individuelles
et de petits bâtiments commerciaux permettant d'économiser de
l'énergie
Reference number
©
ISO 2012
©  ISO 2012
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Published in Switzerland
ii © ISO 2012 – All rights reserved

Contents Page
Foreword . iv
Introduction . v
1  Scope . 1
2  Normative references . 1
3  Terms and definitions . 1
4  Symbols, units and abbreviations . 3
5  Fundamentals . 3
5.1  General . 3
5.2  Core decisions by designers in design process in this International Standard. 4
5.3  Key information helpful for the core decisions . 4
6  Energy consumption ratio and its grounds . 6
6.1  General . 6
6.2  Energy uses . 7
6.3  Prerequisite design conditions for design process . 7
6.4  Reference specifications for elemental technologies . 7
6.5  Grounds for energy consumption ratio . 8
6.6  Cogenerations and photovoltaic cells . 8
6.7  Further information derived from energy consumption ratio . 9
6.8  Overall structure for predicting total energy consumption by using reference energy
consumptions and energy consumption ratios of specifications for elemental
technologies . 9
7  Design process . 13
7.1  General . 13
7.2  Flow of the design process . 13
Annex A (informative) Examples of energy-saving elemental technologies and options for
specification . 15
Annex B (informative) Notes on the experimental estimation of systems, taking actual conditions
of usage into consideration . 34
Annex C (informative) Contents of design guidelines including expression of energy
consumption ratio for elemental technologies and options for specification . 36
Annex D (informative) Media for the design process . 38
Bibliography . 39

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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 13153 was prepared by Technical Committee ISO/TC 205, Building environment design.

iv © ISO 2012 – All rights reserved

Introduction
This International Standard provides the framework for a design process for single-family residential and small
commercial buildings, characterized by the “energy consumption ratio” as the key criterion. The design
process, or design guidelines explaining the design process, is prepared by suppliers of the design guidelines
for designers of buildings as a whole system, building envelopes or building equipment, all of which are deeply
related to the energy performance of buildings. Designers play the most important role in the wide propagation
of energy-saving technologies because they often make the final decisions on whether energy-saving
technologies should be adopted or not, and which energy-saving technologies should be adopted in actual
building projects.
INTERNATIONAL STANDARD ISO 13153:2012(E)

Framework of the design process for energy-saving
single-family residential and small commercial buildings
1 Scope
This International Standard specifies a framework of the design process for energy-saving single-family
residential and small commercial buildings, with the energy consumption ratio as the key criterion. It is
intended to assist in the development of design guidelines for practitioners who design energy-related parts of
buildings.
This International Standard is applicable only to the design process for single-family residential and small
commercial buildings.
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 16813, Building environment design — Indoor environment — General principles
ISO 16818, Building environment design — Energy efficiency — Terminology
ISO 23045, Building environment design — Guidelines to assess energy efficiency of new buildings
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 16813, ISO 16818 and ISO 23045
and the following apply.
3.1
analogical inference
prediction of energy consumption or effectiveness in energy saving of a certain specification of a certain
elemental technology on the basis of a design process or design guidelines, where the prerequisite design
condition does not agree completely with that of the building project of concern
3.2
design condition
condition which affects functions of energy-saving elemental technologies and is taken into account in order to
design the building concerned
3.3
designer
general designer
practitioner who designs buildings and equipment, and does not necessarily have expertise in energy-related
aspects of buildings
3.4
design guidelines
media which include information on how to design buildings and on the design process
3.5
design process
course of actions performed by designers to produce a set of specifications and drawings
3.6
energy consumption ratio
ratio of predicted energy consumption for a certain energy use to the reference energy consumption
3.7
elemental technology
energy-saving elemental technology
group of design methods or specifications which constitute a common function in buildings and are proved to
reduce energy consumption when compared with a reference method and specification
3.8
energy use
purpose of the equipment for which energy is used
EXAMPLE Space heating, space cooling, ventilation, domestic hot water, lighting, cooking, consumer electronics,
etc.
3.9
predicted energy consumption
energy consumption in primary energy for a particular energy use or a sum of energy uses, which is predicted
by taking actual performance of building components and actual efficiency of equipment into consideration as
much as possible
3.10
project definition
process of providing the relevant information for designers and others to define the scope of the work
NOTE The project definition lists the given constraints, which cannot be revised, and the project requirements, the
theories and assumptions. All of these might not be completely defined at this stage. Some of these may be revised in
response to feedback from later stages of the design process.
3.11
reference energy consumption
predicted energy consumption of a building with reference specifications for elemental technologies
3.12
reference specification for elemental technology
reference specification
specification whose energy performance is regarded as a reference standard
3.13
specification
information which specifies the construction of a part of buildings or the requirements for installed equipment
3.14
supplier of design guidelines
expert who produces and supplies design guidelines for designers by using his/her expertise on energy-
related aspects of buildings
2 © ISO 2012 – All rights reserved

4 Symbols, units and abbreviations
Table 1 — Symbols, units and abbreviations
Symbol Quantity Unit
E reference annual energy consumption in primary energy for energy use “i” GJ/a
i
E predicted annual energy consumption in primary energy taking power GJ/a
T
generation by photovoltaic cells into consideration
ET elemental technology
EU energy use
e predicted annual electrical load kWh/a
e
e predicted annual energy consumption for energy use “i” GJ/a
i
e predicted power generation by photovoltaic cells GJ/a
PV
e predicted total annual energy consumption for energy use “1”, “2”,  , “N” GJ/a
T
e predicted annual energy consumption in primary energy for energy use “i”, GJ/a
i,j,k
when the level of option “k” of the elemental technology “j” is adopted
e predicted annual energy consumption in primary energy for energy use “i”, GJ/a
i,j k + j k + + j k
1 j 2 j n j

1 2 n
when the level of option “k ” of the elemental technology “j ”, the level of option
j
“k ” of the elemental technology “j ”,  and the level of option “k ” of the
j 2 j
2 n
elemental technology “j ” are adopted
n
L predicted annual heat load for domestic hot water GJ/a
dhw
L predicted annual heat load for hot-water space heating GJ/a
h
N number of energy uses with which the design process deals -
n number of elemental technologies that are effective in saving each energy use -
r energy consumption ratio for energy use “i”, when the level of option “k” of the -
i,j,k
elemental technology “j” is adopted
r energy consumption ratio for energy use “i”, when the level of option “k ” of the -
i,j ,k j
n j n
n
elemental technology “j ” is adopted
n
r energy consumption ratio for energy use “i”, when evaluating the interaction -
i,j ,k +j ,k
1 j 2 j
1 2
among options of multiple elemental technologies (the level of option “k ” of
j
+ +j ,k
n j

n
the elemental technology “j ”, the level of option “k” of the elemental
j
technology “j ”,  and the level of option “k ” of the elemental technology “j ”)
j
2 n
n
5 Fundamentals
5.1 General
The design process, whose framework is given by this International Standard, has its own characteristics. The
primary characteristic is being equipped with quantitative information on the energy-saving effectiveness of
design options. It comes from the fact that there are still many designers who are engaged mainly in
small-scale building projects and cannot carry out their own tailor-made evaluation of the design options by
themselves. The following shows the decisions by those designers, who are assisted by the design process
and the design guidelines as their media. In this In
...