Life cycle cost (LCC) and life cycle assessment (LCA) for CO2 emissions in ductile iron pipe systems

This document specifies the evaluation method of life cycle cost (LCC) and Life cycle assessment (LCA) of ductile iron pipes and fittings used for water applications and which are in compliance with EN 545.
LCC evaluation is based on concepts and methods developed in ISO 15686 5.
LCA evaluation is based on concepts and methods developed in ISO 15686 6, EN 15804:2012+A2:2019, EN ISO 14040 and EN ISO 14044.
In this document, LCA is limited to the evaluation of environmental impact due to CO2 emissions associated with the consumption of natural resources or energy and waste disposal. The other categories of impacts are not in the scope of this document.
Informative annexes are included in this document as a compilation of references, consensual factors, and scenarios with different DI pipelines.

Lebenszykluskosten (LCC) und Lebenszyklusanalyse (LCA) der CO2-Emissionen von Rohrsystemen aus duktilem Gusseisen

Dieses Dokument legt das Evaluierungsverfahren für die Lebenszykluskosten (LCC) und die Lebenszyklusanalyse (LCA) von Rohren und Formstücken aus duktilem Gusseisen fest, die mit EN 545 übereinstimmen und für die Wassernutzung vorgesehen sind.
Die Evaluierung der LCC basiert auf in ISO 15686 5 entwickelten Konzepten und Methoden.
Die Evaluierung der LCA basiert auf Konzepten und Verfahren, die in ISO 15686 6, EN 15804:2012+A2:2019, EN ISO 14040 und EN ISO 14044 entwickelt wurden.
In diesem Dokument beschränkt sich die LCA auf die Evaluierung der Umweltauswirkung durch die mit dem Verbrauch von Naturgütern oder Energie und mit der Abfallbeseitigung zusammenhängenden CO2 Emissionen. Die anderen Auswirkungskategorien fallen nicht in den Anwendungsbereich dieses Dokuments.
Dieses Dokument enthält informative Anhänge mit einer Zusammenstellung von Referenzangaben, Konsensfaktoren und Szenarien mit verschiedenen Rohrleitungen aus duktilem Gusseisen.

Coût du cycle de vie (CCV) et analyse du cycle de vie (ACV) pour les émissions de CO2 dans les systèmes de canalisations en fonte ductile

Le présent document spécifie la méthode d’évaluation du coût du cycle de vie (CCV) et de l’analyse du cycle de vie (ACV) des tuyaux et raccords en fonte ductile utilisés pour la distribution d’eau et qui sont en conformité avec l’EN 545.
L’évaluation du CCV est basée sur les concepts et méthodes développés dans l’ISO 15686-5.
L’évaluation de l’ACV est basée sur les concepts et méthodes développés dans l’ISO 15686-6, l’EN 15804:2012+A2:2019, l’EN ISO 14040 et l’EN ISO 14044.
Dans le présent document, l’ACV se limite à l’évaluation de l’impact environnemental dû aux émissions de CO2 associées à la consommation de ressources naturelles ou d’énergie et à l’élimination des déchets. Les autres catégories d’impacts ne font pas partie du domaine d’application du présent document.
Le présent document comprend des annexes informatives qui proposent une compilation de données consensuelles, des références et des scénarios utilisant différentes canalisations en fonte ductile.

Stroški življenjskega cikla (LCC) in ocena življenjskega cikla (LCA) cevnih sistemov iz duktilne železove litine zaradi emisije CO2

Po zgledu mednarodnega standarda ISO 21053, del 1 LCC, bo predlagani standard EN obogaten z dodatnimi oddelki:
– opredelitev referenčne življenjske dobe (RSL), funkcionalnih enot, varnostnih meril za storitve oskrbe z vodo,
parametri pogojev uporabe;
– razjasnitev pogojev veljavnosti podatkov (objavljeni, domači podatki ...);
– uvedba koncepta krožnega gospodarstva in možnosti recikliranja cevovodov iz duktilne litine.

General Information

Status
Published
Public Enquiry End Date
02-Feb-2022
Publication Date
08-Mar-2023
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
09-Feb-2023
Due Date
16-Apr-2023
Completion Date
09-Mar-2023
Standard
SIST EN 17800:2023 - BARVE
English language
31 pages
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Standards Content (Sample)


SLOVENSKI STANDARD
01-april-2023
Stroški življenjskega cikla (LCC) in ocena življenjskega cikla (LCA) cevnih
sistemov iz duktilne železove litine zaradi emisije CO2
Life cycle cost (LCC) and life cycle assessment (LCA) for CO2 emissions in ductile iron
pipe systems
Lebenszykluskosten (LCC) und Lebenszyklusanalyse (LCA) der CO2-Emissionen von
Rohrsystemen aus duktilem Gusseisen
Coût du cycle de vie (CCV) et analyse du cycle de vie (ACV) pour les émissions de CO2
dans les systèmes de canalisations en fonte ductile
Ta slovenski standard je istoveten z: EN 17800:2022
ICS:
13.020.60 Življenjski ciklusi izdelkov Product life-cycles
23.040.10 Železne in jeklene cevi Iron and steel pipes
91.140.60 Sistemi za oskrbo z vodo Water supply systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 17800
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2022
EUROPÄISCHE NORM
ICS 77.140.75; 91.140.60
English Version
Life cycle cost (LCC) and life cycle assessment (LCA) for
CO emissions in ductile iron pipe systems
Coût du cycle de vie (CCV) et analyse du cycle de vie Lebenszykluskosten (LCC) und Lebenszyklusanalyse
(ACV) pour les émissions de CO dans les systèmes de (LCA) der CO -Emissionen von Rohrsystemen für
2 2
canalisations en fonte ductile Rohrsysteme aus duktilem Eisen
This European Standard was approved by CEN on 28 November 2022.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATIO N

EUROPÄISCHES KOMITEE FÜR NORMUN G

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17800:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and abbreviated terms . 6
3.1 Terms and definitions . 6
3.2 Abbreviated terms . 9
4 Basic concept of life cycle cost (LCC) for ductile iron pipe systems. 9
4.1 Definition of life cycle cost . 9
4.2 Calculation method . 10
5 Breakdown of life cycle cost . 12
5.1 Acquisition cost . 12
5.2 Operation cost . 13
5.3 Maintenance cost . 13
5.4 End of life cost or revenue . 13
6 Basic concept of life cycle assessment (LCA) for ductile iron pipe systems . 14
6.1 Definition of CO emissions impact . 14
6.2 Calculation method of CO emissions . 14
7 Breakdown of CO emissions . 15
7.1 CO emissions at the acquisition stage . 15
7.2 CO emissions at the operation stage . 15
7.3 CO emissions at the maintenance stage . 16
7.4 CO emissions at end of life stage . 16
8 Key drivers for LCC and LCA evaluation . 17
8.1 General. 17
8.2 Reference service life (RSL) . 17
8.3 Functional unit (FU) . 18
8.4 Water leaks volume . 18
8.5 Failure rate . 18
9 Quality of data . 18
Annex A (informative) Pumping cost and CO emissions with pump operation . 20
A.1 Pumping cost . 20
A.2 Daily pumping energy . 20
A.3 Total head loss . 21
A.4 CO emissions with pump operation . 22
Annex B (informative)  Scenarios of LCC and CO emissions with different DI pipelines . 23
B.1 Scenarios of LCC . 23
B.2 Scenarios of CO emissions . 24
Annex C (informative) Water leaks and failure rate of ductile iron pipelines . 25
C.1 water leaks evaluation . 25
C.2 Examples of failure rates . 25
C.2.1 General . 25
C.2.2 Example in France . 26
C.2.3 Example in Germany. 26
C.2.4 Example in Spain . 27
Annex D (informative) Circular economy, LCC and CO emissions . 28
D.1 General . 28
D.2 Conservation of mechanical characteristics in time . 28
D.3 Recyclability . 28
D.4 Worldwide scrap collecting . 28
D.5 Optimum hydraulic conveyance capacity . 29
D.6 Optimum pipe wall thickness . 29
D.7 Preservation of soil . 29
Bibliography . 30
European foreword
This document (EN 17800:2022) has been prepared by Technical Committee CEN/TC 203 “Cast iron
pipes, fittings and their joints”, the secretariat of which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by June 2023, and conflicting national standards shall be
withdrawn at the latest by June 2023.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the United
Kingdom.
Introduction
Studies on economic and environmental impacts are important for utility decision-makers as they seek
to balance budget concerns over immediate and long-term needs across acquisition, operations, and
maintenance, and planned end of life. For authorities and engineers designing pipeline systems, the life
cycle cost (LCC) and live cycle assessment (LCA) serve as a tool to study various scenarios to determine
the right solution for site-specific conditions and community values, as well as to provide the necessary
data to support those decisions. Impacts on the circular economy should be taken into consideration too.
The intention of this document, dedicated to ductile iron pipe systems, is to define objective
methodologies for LCC and LCA- carbon footprint, respectively, in order to support customers and users
to optimize ductile iron pipe solutions with global cost evaluation, safety requirements and
environmental criteria.
1 Scope
This document specifies the evaluation method of life cycle cost (LCC) and Life cycle assessment (LCA) of
ductile iron pipes and fittings used for water applications and which are in compliance with EN 545.
LCC evaluation is based on concepts and methods developed in ISO 15686-5.
LCA evaluation is based on concepts and methods developed in ISO 15686-6, EN 15804:2012+A2:2019,
EN ISO 14040 and EN ISO 14044.
In this document, LCA is limited to the evaluation of environmental impact due to CO emissions
associated with the consumption of natural resources or energy and waste disposal. The other categories
of impacts are not in the scope of this document.
Informative annexes are included in this document as a compilation of references, consensual factors,
and scenarios with different DI pipelines.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
EN 545:2010, Ductile iron pipes, fittings, accessories and their joints for water pipelines — Requirements
and test methods
EN ISO 14044:2006 , Environmental management — Life cycle assessment — Requirements and guidelines
(ISO 14044:2006)
3 Terms, definitions and abbreviated terms
For the purposes of this document, the terms and definitions given in EN 545:2010 and the following
apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:

• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1 Terms and definitions
3.1.1
life cycle cost
cost of an asset throughout its life cycle, while fulfilling the performance requirements
[SOURCE: ISO 15686-5:2017, 3.1.7, modified]

As impacted by EN ISO 14044:2006/A1:2018 and EN ISO 14044:2006/A2:2020.
3.1.2
life cycle assessment
compilation and evaluation of the inputs, outputs and the potential environmental impacts of a product
system
Note 1 to entry: Environmental life cycle assessment and environmental life cycle analysis are synonymous.
[SOURCE: EN ISO 14040:2006, 3.2, modified – “throughout its life cycle” at the end of the definition has
been removed; Note 1 to entry has been added]
3.1.3
acquisition cost
all costs included in acquiring an asset by purchase/lease or construction procurement route, excluding
costs during the occupation and use or end-of-life phases of the life cycle of the constructed asset
[SOURCE: ISO 15686-5:2017, 3.1.1]
3.1.4
operation cost
total running costs for water conveyance, including the cost for pumping and cost for water leakage
Note 1 to entry: Operation costs could include rent, rates, insurances, energy, and other environmental/regulatory
inspection costs.
[SOURCE: ISO 15686-5:2017, 3.1.11, modified]
3.1.5
maintenance cost
total labour, material, and other related costs incurred to maintain pipelines in a state in which it can
perform its required functions
[SOURCE: ISO 15686-5:2017, 3.1.9, modified]
3.1.6
end of life cost or revenue
total of costs or fee for disposing of an asset at the end of its service life or interest period, including costs
resulting from pipeline dismantling, waste disposal, and revenue from material recovery
[SOURCE: ISO 15686-5:2017, 3.1.5, modified – “including costs resulting from pipeline dismantling,
waste disposal, and revenue from material recovery” has been added]
3.1.7
period of analysis
period of time over which life cycle costs or whole-life costs are analysed
Note 1 to entry: The period of analysis is determined by the client.
[SOURCE: ISO 15686-5:2017, 3.3.6]
3.1.8
functional unit
quantified performance of a product system for use as a reference unit
[SOURCE: EN 15804:2012+A2:2019, 3.13, from EN ISO 14040:2006]
3.1.9
service life
period of time after installation during which a facility or its component parts meet or exceed the
performance requirements
[SOURCE: ISO 15686-1:2011, 3.25]
3.1.10
in-use condition
any circumstance that can impact on the performance of a building or a constructed asset, or a part
thereof, under normal use
[SOURCE: ISO 15686-1:2011, 3.10, modified – Note 1 to entry has been deleted]
3.1.11
reference service life
service life of a pipeline system which is known to be expected under a particular set, i.e. a reference set,
of in-use conditions and which can form the basis for estimating the service life under other in-use
conditions
[SOURCE: ISO 15686-1:2011, 3.22, modified – “product, component, assembly or system” has been
replaced by “pipeline system”]
3.1.12
residual value
value assigned to an asset at the end of the period of analysis
[SOURCE: ISO 15686-5:2017, 3.3.8]
3.1.13
discount rate
factor or rate reflecting the time value of money that is used to convert cash flows occurring at different
times to a common time
Note 1 to entry: This can be used to convert future values to present-day values and vice versa.
[SOURCE: ISO 15686-5:2017, 3.3.1]
3.1.14
failure rate
number of failures (which cause a reparation) per unit length of the pipeline per year
3.1.15
water leak volume
volume of total water lost along the pipeline in m in a period of one year, (including permanent water
losses on line, water losses during failure, reparation and cleaning…)
Note 1 to entry: Evaluation is depending of the measuring equipment and collecting information system put in
force by water authority.
3.1.16
nominal size DN
alphanumerical designation of size for components of a pipework system, to be used for reference
purposes, which comprises the letters DN followed by a dimensionless whole number which is indirectly
related to the physical size, in millimetres, of the bore or outside diameter of the end connections
[SOURCE: EN 545:2010]
3.2 Abbreviated terms
FU functional unit
LCC life cycle cost
LCA life cycle assessment
RSL reference service life
SL service life
4 Basic concept of life cycle cost (LCC) for ductile iron pipe systems
4.1 Definition of life cycle cost
The life cycle cost shall be calculated using Formula (1) as a sum of the acquisition cost, the operation
cost such as the electric power usage cost of the pump operation, the maintenance cost such as the
leakage cost, and the end of life cost or revenue. B.1 shows scenarios of LCC with two different pipelines.
(1)
C= C++CC+ C
L A OM E
C is the life cycle cost;
L
C is the acquisition cost; it includes the pipe and fittings material cost, construction cost, and
A
designing/survey cost;
C is the operation cost; it includes the pumping cost;
O
C is the maintenance cost; it includes the leakage cost, repair cost, etc.;
M
C is the end of life cost or revenue; it includes the disposal cost and benefit of recycling.
E
4.2 Calculation method
The life cycle cost shall be calculated using Formula (2) to (4) by totalizing all the costs in a period of
analysis. Cost in the future is converted into a current value using a discount rate. In a case where the
evaluation period is not just the same as multiples of the service life(SL), the residual value is deducted
from the life cycle cost.
Case 1: t < t
n m
t
n

C + C C × tt− / t
( )
OM,,tt A mn m

(2)
CC=+−
LA

tt

n
()1+ r
()1+ r
t=1
Case 2: t = t
n m
t
m

C + C
C
OM,,tt
E

CC=++ (3)
LA ∑
tt

m
()1+ r
()1+ r
t=1
Case 3: t < t < 2 × t
m n m
t
n

C + C C ××2 tt− / t
CC ( )
OM,,tt A mn m
AE

CC=++ +− (4)
LA

t tt t

m mn
()1+ r
()1+ r ()11++rr()
t=1
where
C is the life cycle cost;
L
t is the time in years;
t is the period of analysis, in year;
n
t is the service life (SL), in year;
m
C is the acquisition cost;
A
th
C
is the operation cost in the t year;
O,t
th
C
is the maintenance cost in the t year;
M,t
C is the end of life cost or revenue;
E
r is the discount rate.
Key
1 acquisition cost
2 operation cost
3 maintenance cost
4 end of life cost or revenue
X time in years
Y costs
Figure 1 — Costs per year
Key
1 acquisition cost
2 operation cost
3 maintenance cost
4 end of life cost or revenue
X time in years
Y accumulated costs
Figure 2 — Accumulated costs during the service life
5 Breakdown of life cycle cost
5.1 Acquisition cost
The acquisition cost shall be calculated using Formula (5) as a total of the pipe material cost, construction
cost, and designing/survey cost.
C= A++A A (5)
A PC D
where
C is the acquisition cost;
A
A is the pipe and fittings material cost;
P
A is the construction cost (pipe transporting cost, pipe laying cost, trenching cost, backfilling cost
C
etc.);
A is the designing/survey cost (all the studies useful for the project).
D
5.2 Operation cost
The yearly operation cost shall be calculated using Formula (6) as the pumping cost such as the electric
power usage cost of the pump operation. Details of the computation about the pumping cost are shown
in Annex A.
C O+ O (6)
O,,t P t W,t
where
th
C
is the operation cost in the t year;
O,t
th
O
is the pumping cost in the t year;
P,t
th
O
is the water leak cost in the t year and it shall be calculated as follows:
W,t
O WU×
W,,t Lt P
where
th 3
W
is the water leak on the pipeline in the t year (evaluated according to Annex C), in m ;
L,t
th
U
is the unit price, in the t year, of water supply, in currency per cubic meter.
P
5.3 Maintenance cost
The yearly maintenance cost shall be calculated using Formula (7) as a total of the leakage cost, leak
detection cost, repair cost, and others maintenance cost.
C = M +M +M (7)
M,t D,t R,t O,t
where
th
C
is the maintenance cost in the t year;
M,t
th
M
is the leak detection cost in the t year;
D,t
th
M
is the repair cost in the t year;
R,t
th
M
is another maintenance cost in the t year.
O,t
5.4 End of life cost or revenue
The end of life cost or revenue shall be calculated using Formula (9) as a total of the pipeline dismantling
cost and the waste disposal cost, deducting the revenue from material recovery.
(9)
C=EE+− E
E PW R
where
C is the end of life cost or revenue;
E
E is the pipeline dismantling cost;
P
E is the waste disposal cost;
W
E is the potential revenue from material recovery. (Material recovery is considered to be
R
applicable only to ductile iron pipes.)
=
=
6 Basic concept of life cycle assessment (LCA) for ductile iron pipe systems
6.1 Definition of CO emissions impact
Environmental life cycle assessment is a technique to assess environmental impacts through all the stages
of product and service life. Associated CO emissions can be quantitatively estimated by the amount of
kg CO equivalent unit, unit which is applicable in all the concerned formulas.
Total CO emissions shall be calculated using Formula (10) as a total amount of CO emissions through
2 2
all life cycle stages such as acquisition stage, operation stage, maintenance stage, and end of life stage.
E= E++EE+ E (10)
T A OM E
where
E is the total CO emissions through all life cycle stages;
T 2
E are the CO emissions at the acquisition stage;
A 2
E are the CO emissions at the operation stage;
O 2
E are the CO emissions at the maintenance stage;
M 2
E are CO emissions at end of life stage.
E 2
6.2 Calculation method of CO emissions
The total amount of CO emissions shall be calculated using Formulae (11) to (13) by totalizing all the
CO emissions in a period of analysis (t ).
2 n
Case 1: t < t
n m
t
n
E=E++(E E ) (11)
T A O,,ttM

t=1
Case 2: t = t
n m
t
n
(12)
E=E+ (E ++E ) E
T A O,,ttM E

t=1
Case 3: t < t < 2 × t
m n m
t
n
E =2×+E (EE+ )+ E (13)
T A ∑ OM,,tt E
t=1
where
E is the total CO emissions through all life cycle stages;
T 2
t is the time in years;
t is the period of analysis, in year;
n
t is the service life(SL), in year;
m
E are the CO emissions at the acquisition stage;
A 2
-th
E
are the CO emissions at operation stage in the t year;
O,t
-th
E
are the CO emissions at the maintenance stage in the t year;
M,t
E are the CO emissions at end of life stage.
E 2
7 Breakdown of CO emissions
7.1 CO emissions at the acquisition stage
CO emissions at the acquisition stage shall be calculated using Formula (14) as a total of CO emissions
2 2
with pipe manufacture, construction material production, construction machine operation,
transportation, and regeneration treatment of excavated soil.
E= E++E E+ E+ E (14)
A AP AC AO AT AR
where
E are the CO emissions at the acquisition stage;
A 2
E is the CO emissions with pipe manufacture (raw material procurement, transportation to the
AP 2
factory, manufacturing, etc.). The calculation methodology for CO emissions shall take into
account the provision for scrap recycling in ductile iron pipe production
...

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