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CEN

EN 13136:2013

(Main)

Refrigerating systems and heat pumps - Pressure relief devices and their associated piping - Methods for calculation

Refrigerating systems and heat pumps - Pressure relief devices and their associated piping - Methods for calculation

1.1   This European Standard describes the calculation of mass flow for sizing pressure relief devices for components of refrigerating systems.
NOTE   The term "refrigerating system" used in this European Standard includes heat pumps.
1.2   This European Standard describes the calculation of discharge capacities for pressure relief valves and other pressure relief devices in refrigerating systems including the necessary data for sizing these when relieving to atmosphere or to components within the system at lower pressure.
1.3   This European Standard specifies the requirements for selection of pressure relief devices to prevent excessive pressure due to internal and external heat sources, the sources of increasing pressure (e.g. compressor, heaters, etc.) and thermal expansion of trapped liquid.
1.4   This European Standard describes the calculation of the pressure loss in the upstream and downstream line of pressure relief valves and other pressure relief devices and includes the necessary data.
1.5   This European Standard refers to other relevant standards in Clause 5.

Kälteanlagen und Wärmepumpen - Druckentlastungseinrichtungen und zugehörige Leitungen - Berechnungsverfahren

1.1   Diese Europäische Norm beschreibt die Berechnung der Massenströme zur Größenbestimmung von Druckentlastungseinrichtungen für Teile von Kälteanlagen.
ANMERKUNG   Der in dieser Europäischen Norm verwendete Begriff „Kälteanlage“ schließt Wärmepumpen mit ein.
1.2   Diese Europäische Norm beschreibt die Berechnung der Abblaseleistungen von Druckentlastungsventilen und anderen Druckentlastungseinrichtungen in Kälteanlagen einschließlich der hierzu erforderlichen Daten zur Größenbestimmung dieser Einrichtungen, wenn sie ins Freie oder in Bauteile der Kälteanlage mit niedrigerem Druck abblasen.
1.3   Diese Europäische Norm legt die Anforderungen an die Auswahl von Druckentlastungseinrichtungen zur Vermeidung von unzulässigen Drücken, hervorgerufen durch innere und äußere Wärmequellen, Druckerzeuger (z. B. Verdichter, Erhitzer, usw.) und die Wärmeausdehnung eingesperrter Flüssigkeit fest.
1.4   Diese Europäische Norm beschreibt die Berechnung des Druckabfalls in den zu- und abführenden Leitungen von Druckentlastungsventilen und anderen Druckentlastungseinrichtungen einschließlich der erforderlichen Daten.
1.5   Diese Europäische Norm verweist in Abschnitt 5 auf weitere einschlägige Normen.

Systèmes frigorifiques et pompes à chaleur - Dispositifs de limitation de pression et tuyauteries associées - Méthodes de calcul

1.1   La présente Norme européenne décrit le calcul du débit-masse pour le dimensionnement des dispositifs de limitation de pression pour les composants des systèmes frigorifiques.
NOTE   Le terme « système frigorifique » utilisé dans la présente Norme européenne inclut les pompes à chaleur.
1.2   La présente Norme européenne décrit le calcul des capacités de décharge des soupapes de sûreté et autres dispositifs de limitation de pression des systèmes frigorifique, y compris les données nécessaires à leur dimensionnement lors de leur décharge dans l’atmosphère ou dans les composants du système à basse pression.
1.3   La présente Norme européenne spécifie les exigences relatives à la sélection des dispositifs de limitation de pression pour éviter une pression excessive due aux sources de chaleur internes et externes, aux autres sources de génération de pression (par exemple compresseurs, chauffages, etc.) et à la dilatation du fluide piégé.
1.4   La présente Norme européenne décrit le calcul de la perte de charge dans la tubulure en amont et en aval des soupapes de sûreté et autres dispositifs de limitation de pression, et inclut les données nécessaires.
1.5   La présente Norme européenne renvoie à d’autres normes pertinentes à l’Article 5.

Hladilni sistemi in toplotne črpalke - Tlačne varnostne naprave in njihove napeljave - Metode za izračun

General Information

Status
Withdrawn
Publication Date
08-Oct-2013
Withdrawal Date
27-Nov-2018
ICS
27.080 - Heat pumps
27.200 - Refrigerating technology
Technical Committee
CEN/TC 182 - Refrigerating systems, safety and environmental requirements
Drafting Committee
CEN/TC 182/WG 2 - Design and testing
Current Stage
9060 - Closure of 2 Year Review Enquiry - Review Enquiry
Start Date
04-Jun-2019
Completion Date
04-Jun-2019
Directive
2014/68/EU - Directive 2014/68/EU of the European Parliament and of the Council of 15 May 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of pressure equipment
97/23/EC - Directive 97/23/EC of the European Parliament and of the Council of 29 May 1997 on the approximation of the laws of the Member States concerning pressure equipment
Mandate
M/071 - Mandate to CEN for standardization in the field of Pressure equipment
Ref Project
SIST EN 13136:2014 - Refrigerating systems and heat pumps - Pressure relief devices and their associated piping - Methods for calculation

Relations

Replaces
EN 13136:2001 - Refrigerating systems and heat pumps - Pressure relief devices and their associated piping - Methods for calculation
Effective Date
08-Jun-2022
Replaces
EN 13136:2001/A1:2005 - Refrigerating systems and heat pumps - Pressure relief devices and their associated piping - Method for calculation
Effective Date
16-Oct-2013
Merged Into
EN 13136:2013+A1:2018 - Refrigerating systems and heat pumps - Pressure relief devices and their associated piping - Methods for calculation
Effective Date
24-Oct-2018
Amended By
EN 13136:2013/prA1:2017 - Refrigerating systems and heat pumps - Pressure relief devices and their associated piping - Methods for calculation
Effective Date
08-Mar-2017

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Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kälteanlagen und Wärmepumpen - Druckentlastungseinrichtungen und zugehörige Leitungen - BerechnungsverfahrenSystèmes de réfrigération et pompes à chaleur - Dispositifs limiteurs de pression et tuyauteries associées - Méthodes de calculRefrigerating systems and heat pumps - Pressure relief devices and their associated piping - Methods for calculation27.200Hladilna tehnologijaRefrigerating technology27.080Heat pumpsICS:Ta slovenski standard je istoveten z:EN 13136:2013SIST EN 13136:2014en01-februar-2014SIST EN 13136:2014SLOVENSKI
STANDARDSIST EN 13136:2002/A1:2005SIST EN 13136:20021DGRPHãþD



SIST EN 13136:2014



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13136
October 2013 ICS 27.080; 27.200 Supersedes EN 13136:2001English Version
Refrigerating systems and heat pumps - Pressure relief devices and their associated piping - Methods for calculation
Systèmes frigorifiques et pompes à chaleur - Dispositifs de limitation de pression et tuyauteries associées - Méthodes de calcul
Kälteanlagen und Wärmepumpen - Druckentlastungseinrichtungen und zugehörige Leitungen -Berechnungsverfahren This European Standard was approved by CEN on 24 August 2013.
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, 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 © 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13136:2013: ESIST EN 13136:2014



EN 13136:2013 (E) 2 Contents Page Foreword . 3 Introduction . 4 1 Scope . 5 2 Normative references . 5 3 Terms and definitions . 5 4 Symbols . 6 5 General . 8 6 Pressure relief devices for protection of system components . 8 6.1 General . 8 6.2 Excessive pressure caused by heat sources . 9 6.2.1 External heat sources . 9 6.2.2 Internal heat sources . 10 6.3 Excessive pressure caused by compressors . 11 6.4 Excessive pressure caused by liquid expansion . 11 7 Discharge capacities of pressure relief devices . 12 7.1 General .
...

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1.1   This document specifies the requirements for material, design, manufacturing, testing and documentation for stationary piping intended for use in refrigerating systems, heat pumps and secondary cooling and heating systems. These refrigerating systems and heat pump systems are referenced in this document as refrigerating systems as defined in EN 378-1:2016.
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1.2   This document applies to piping, including welded or brazed attachments up to and including the flanges, screwed, welded or brazed connectors, or to the edge to be welded or brazed at the first circumferential joint connecting piping or other elements.
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This European Standard specifies the requirements for the safety of persons and property, provides guidance for the protection of the environment and establishes procedures for the operation, maintenance and repair of refrigerating systems and the recovery of refrigerants.
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This Part 4 of the European Standard specifies requirements for safety and environmental aspects in relation to operation, maintenance, and repair of refrigerating systems and the recovery, reuse and disposal of all types of refrigerant, refrigerant oil, heat-transfer fluid, refrigerating system and part thereof.
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Subclauses 4, 5.1.1 to 5.1.4, 5.2, 5.3.1, 5.3.3 and 6.6 of this European Standard are not applicable to unitary systems having a power cord, being factory sealed, and in conformance with EN 60335 series.

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1.1   This European Standard describes the calculation of mass flow for sizing pressure relief devices for components of refrigerating systems.
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This European Standard specifies the requirements for the safety of persons and property, provides guidance for the protection of the environment and establishes procedures for the operation, maintenance and repair of refrigerating systems and the recovery of refrigerants.
The term "refrigerating system" used in this European Standard includes heat pumps.
This Part 2 of this Standard is applicable to the design, construction and installation of refrigerating systems including piping, components and materials. It includes ancillary equipment not covered in FprEN 378-1:2016, FprEN 378-3:2016 or FprEN 378-4:2016 which is directly associated with these systems. It also specifies requirements for testing, commissioning, marking and documentation. Requirements for secondary heat transfer circuits are excluded except for any protection requirements associated with the refrigerating system. Ancillary equipment includes, for example, fans, fan motors, electrical motors and transmission assemblies for open compressor systems.
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a)   to refrigerating systems, stationary or mobile, of all sizes except to vehicle air conditioning systems covered by a specific product standard, e.g. ISO 13043;
b)   to secondary cooling or heating systems;
c)   to the location of the refrigerating systems;
d)   to replaced parts and added components after adoption of this standard if they are not identical in function and in the capacity.
Systems using refrigerants other than those listed in Annex E of FprEN-378 1:2016 are not covered by this standard.
This standard does not apply to goods in storage.
This standard is not applicable to refrigerating systems which were manufactured before the date of its publication as a European Standard except for extensions and modifications to the system which were implemented after publication.
This standard is applicable to new refrigerating systems, extensions or modifications of already existing systems, and for existing stationary systems, being transferred to and operated on another site.
This standard also applies in the case of the conversion of a system to another refrigerant type, in which case conformity to the relevant clauses of parts 1 to 4 of the standard shall be assessed.

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