CEN/TR 16911:2015
(Main)Heat meters - Recommendations for circulation water in industrial and district heating systems and their operation
Heat meters - Recommendations for circulation water in industrial and district heating systems and their operation
This Technical Report applies to industrial and district heating supply by means of high-temperature water heating facilities (flow temperature > 100 °C). It also applies to high-temperature water heating facilities (flow temperature ≤100 °C) that are directly connected to district heating net-works. In this Technical Report, the aforementioned supply variants will, in the following, be referred to as "district heating facilities". This Technical Report applies without limitations to new facilities. For existing district heating facilities, the application of this Technical Report is recommended in order to prevent faults due to the chemical composition of the circulation water that would affect the facilities' safe operability and availability.
Toplotni števci - Priporočila za obtočne vode v industriji in sistemih daljinskega ogrevanja ter njihovo delovanje
To tehnično poročilo se uporablja za industrijsko in daljinsko oskrbovanje s toploto s pomočjo visokotemperaturnih sistemov za ogrevanje vode (temperatura dovoda višja od 100 °C). Uporablja se tudi za visokotemperaturne sisteme za ogrevanje vode (temperatura dovoda manjša ali enaka 100 °C), ki so neposredno povezani z daljinskimi ogrevalnimi omrežji. V tem tehničnem poročilu bodo zgoraj omenjene različice oskrbovanja s toploto v nadaljevanju poimenovane »daljinski ogrevalni sistemi«. To tehnično poročilo velja za nove sisteme brez omejitev. Za obstoječe daljinske ogrevalne sisteme je uporaba tehničnega poročila priporočljiva za preprečevanje okvar, ki so posledica kemične sestave obtočne vode in ki lahko vplivajo na varno delovanje in razpoložljivost sistema.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
kSIST-TP FprCEN/TR 16911:2015
01-oktober-2015
7RSORWQLãWHYFL3ULSRURþLOD]DREWRþQHYRGHYLQGXVWULMLLQVLVWHPLKGDOMLQVNHJD
RJUHYDQMDWHUQMLKRYRGHORYDQMH
Heat meters - Recommendations for circulation water in industrial and district heating
systems and their operation
Ta slovenski standard je istoveten z: FprCEN/TR 16911
ICS:
91.140.10 Sistemi centralnega Central heating systems
ogrevanja
kSIST-TP FprCEN/TR 16911:2015 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
kSIST-TP FprCEN/TR 16911:2015
kSIST-TP FprCEN/TR 16911:2015
TECHNICAL REPORT
FINAL DRAFT
FprCEN/TR 16911
RAPPORT TECHNIQUE
TECHNISCHER BERICHT
July 2015
ICS 91.140.10
English Version
Heat meters - Recommendations for circulation water in
industrial and district heating systems and their operation
This draft Technical Report is submitted to CEN members for Technical Committee Approval. It has been drawn up by the Technical
Committee CEN/TC 176.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
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.
Warning : This document is not a Technical Report. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a Technical Report.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. FprCEN/TR 16911:2015 E
worldwide for CEN national Members.
kSIST-TP FprCEN/TR 16911:2015
FprCEN/TR 16911:2015 (E)
Contents Page
European foreword .4
Introduction .5
1 Scope .6
2 Normative references .6
3 Terms and definitions .6
3.1 General .6
3.2 Types of water .7
3.3 Units .8
3.3.1 General .8
3.3.2 Measurands .8
4 Symbols and abbreviations .9
4.1 Chemical terms .9
4.2 Technical terms. 10
5 Water quality . 10
5.1 General . 10
5.2 Effects of the water constituents . 11
5.2.1 Gases . 11
5.2.2 Water-insoluble substances . 12
5.2.3 Water-soluble substances . 12
5.2.4 Oils/greases . 12
6 Systems engineering . 12
6.1 Systems conception . 12
6.1.1 General . 12
6.1.2 Materials . 13
6.1.3 Pressure maintenance and water supply . 14
6.2 Water treatment techniques . 15
6.2.1 General . 15
6.2.2 Filtering . 15
6.2.3 Demineralization . 16
6.2.4 Softening . 16
6.2.5 Degassing . 16
6.2.6 Catalytic and electrochemical oxygen scavenging. 16
7 Production technology . 17
7.1 Standard values for the circulation water . 17
7.2 Low-salt operation . 17
7.3 Salty operation . 17
7.4 Technical aspects related to the operation . 18
7.4.1 General . 18
7.4.2 Filling and supplementary water . 18
7.4.3 Underpressure . 19
7.4.4 Exceptional operating conditions . 20
7.4.5 Direct heating . 20
7.4.6 Indirect heating . 20
7.4.7 Partial evaporation. 20
7.5 Conditioning . 20
7.5.1 General . 20
7.5.2 pH value increase . 21
kSIST-TP FprCEN/TR 16911:2015
FprCEN/TR 16911:2015 (E)
7.5.3 Hardness stabilizing . 22
7.5.4 Oxygen scavenging . 22
7.5.5 Corrosion inhibitors . 23
7.5.6 Water tracing dyes for the circulation water . 24
7.5.7 Antifreezing agents . 24
7.6 Monitoring . 24
7.6.1 General . 24
7.6.2 Assessment criteria . 24
7.6.3 Measurement frequency . 26
7.6.4 Dosing of conditioning agents . 27
7.6.5 Sampling. 28
7.6.6 Measurement procedures . 30
8 Hygienic, toxicological and environmental aspects . 30
8.1 General . 30
8.2 Hygienic and toxicological aspects . 30
8.3 Environmental aspects . 31
Bibliography . 32
kSIST-TP FprCEN/TR 16911:2015
FprCEN/TR 16911:2015 (E)
European foreword
This document (FprCEN/TR 16911:2015) has been prepared by Technical Committee CEN/TC 176 “Heat
meters”, the secretariat of which is held by SIS.
This document is currently submitted to the Technical Committee Approval.
kSIST-TP FprCEN/TR 16911:2015
FprCEN/TR 16911:2015 (E)
Introduction
This document is based on the German Guideline AGFW FW 510 prepared by the German Heat and Power
Association (AGFW) that represents the state of the art but does not have a normative status has been
reproduced in this Technical Report with the permission of AGFW.
This Technical Report is an informative document that describes a process that may be applied for the
operation of district heating facilities and gives recommendations for the water used in such facilities. The
water quality described in this Technical Report can be used also during testing of heat meters.
kSIST-TP FprCEN/TR 16911:2015
FprCEN/TR 16911:2015 (E)
1 Scope
This Technical Report applies to industrial and district heating supply by means of high-temperature water
heating facilities (flow temperature > 100 °C). This also applies to high-temperature water heating facilities
(flow temperature ≤ 100 °C) that are directly connected to district heating networks. In this Technical Report,
the aforementioned supply variants will, in the following, be referred to as “district heating facilities”.
This document applies without limitations to new facilities. For existing district heating facilities, the application
of this Technical Report is recommended in order to prevent faults due to the chemical composition of the
circulation water that would affect the facilities' safe operability and availability.
NOTE Informative notes in the form of guidance and recommendations are identified correspondingly and set in
italics for better differentiation.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
EN 1717, Protection against pollution of potable water in water installations and general requirements of
devices to prevent pollution by backflow
ISO 11466, Soil qu
...
SLOVENSKI STANDARD
01-marec-2016
7RSORWQLãWHYFL3ULSRURþLOD]DREWRþQHYRGHYLQGXVWULMLLQVLVWHPLKGDOMLQVNHJD
RJUHYDQMDWHUQMLKRYRGHORYDQMH
Heat meters - Recommendations for circulation water in industrial and district heating
systems and their operation
Ta slovenski standard je istoveten z: CEN/TR 16911:2015
ICS:
17.200.10 Toplota. Kalorimetrija Heat. Calorimetry
91.140.10 Sistemi centralnega Central heating systems
ogrevanja
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
CEN/TR 16911
TECHNICAL REPORT
RAPPORT TECHNIQUE
December 2015
TECHNISCHER BERICHT
ICS 91.140.10
English Version
Heat meters - Recommendations for circulation water in
industrial and district heating systems and their operation
This Technical Report was approved by CEN on 16 November 2015. It has been drawn up by the Technical Committee CEN/TC
176.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 16911:2015 E
worldwide for CEN national Members.
Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
3.1 General . 6
3.2 Types of water . 8
3.3 Units . 9
3.3.1 General . 9
3.3.2 Measurands . 9
4 Symbols and abbreviations . 9
4.1 Chemical terms . 9
4.2 Technical terms . 10
5 Water quality . 10
5.1 General . 10
5.2 Effects of the water constituents . 11
5.2.1 Gases . 11
5.2.2 Water-insoluble substances . 12
5.2.3 Water-soluble substances . 12
5.2.4 Oils/greases . 13
6 Systems engineering . 13
6.1 Systems conception . 13
6.1.1 General . 13
6.1.2 Materials . 13
6.1.3 Pressure maintenance and water supply . 14
6.2 Water treatment techniques . 15
6.2.1 General . 15
6.2.2 Filtering . 16
6.2.3 Demineralization . 16
6.2.4 Softening . 16
6.2.5 Degassing . 16
6.2.6 Catalytic and electrochemical oxygen scavenging . 16
7 Production technology . 17
7.1 Standard values for the circulation water . 17
7.2 Low-salt operation . 18
7.3 Salty operation . 18
7.4 Technical aspects related to the operation . 19
7.4.1 General . 19
7.4.2 Filling and supplementary water . 19
7.4.3 Underpressure . 20
7.4.4 Exceptional operating conditions . 21
7.4.5 Direct heating . 21
7.4.6 Indirect heating . 21
7.4.7 Partial evaporation . 21
7.5 Conditioning . 22
7.5.1 General . 22
7.5.2 pH value increase . 22
7.5.3 Hardness stabilizing . 23
7.5.4 Oxygen scavenging . 23
7.5.5 Corrosion inhibitors . 24
7.5.6 Water tracing dyes for the circulation water . 25
7.5.7 Antifreezing agents . 25
7.6 Monitoring . 25
7.6.1 General . 25
7.6.2 Assessment criteria. 25
7.6.3 Measurement frequency . 27
7.6.4 Dosing of conditioning agents . 28
7.6.5 Sampling . 29
7.6.6 Measurement procedures . 31
8 Hygienic, toxicological and environmental aspects . 31
8.1 General . 31
8.2 Hygienic and toxicological aspects . 31
8.3 Environmental aspects . 32
Bibliography . 33
European foreword
This document (CEN/TR 16911:2015) has been prepared by Technical Committee CEN/TC 176 “Heat
meters”, the secretariat of which is held by SIS.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
Introduction
This document is based on the German Guideline AGFW FW 510 prepared by the German Heat and
Power Association (AGFW) that represents the state of the art but does not have a normative status has
been reproduced in this Technical Report with the permission of AGFW.
This Technical Report is an informative document that describes a process that may be applied for the
operation of district heating facilities and gives recommendations for the water used in such facilities.
The water quality described in this Technical Report can be used also during testing of heat meters.
1 Scope
This Technical Report applies to industrial and district heating supply by means of high-temperature
water heating facilities (flow temperature > 100 °C). This also applies to high-temperature water
heating facilities (flow temperature ≤ 100 °C) that are directly connected to district heating networks.
In this Technical Report, the aforementioned supply variants will, in the following, be referred to as
“district heating facilities”.
This document applies without limitations to new facilities. For existing district heating facilities, the
application of this Technical Report is recommended in order to prevent faults due to the chemical
composition of the circulation water that would affect the facilities' safe operability and availability.
NOTE Informative notes in the form of guidance and recommendations are identified correspondingly and
set in italics for better differentiation.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated
...
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