EN 13771-1:2016
(Main)Compressors and condensing units for refrigeration - Performance testing and test methods - Part 1: Refrigerant compressors
Compressors and condensing units for refrigeration - Performance testing and test methods - Part 1: Refrigerant compressors
This European Standard specifies performance test methods for refrigerant compressors. These methods provide sufficiently accurate results for the determination of the refrigerating capacity, power absorbed, refrigerant mass flow, isentropic efficiency and the coefficient of performance.
This European Standard applies only to performance tests where the equipment for testing is available.
Kältemittel-Verdichter und Verflüssigungssätze für die Kälteanwendung - Leistungsprüfung und Prüfverfahren - Teil 1: Kältemittel-Verdichter
Diese Europäische Norm legt Methoden zur Leistungsprüfung für Kältemittel-Verdichter fest. Diese Verfahren ermöglichen ausreichend genaue Ergebnisse zur Bestimmung von Kälteleistung, Leistungsaufnahme, Kältemittelmassenstrom, Gütegrad und Leistungszahl.
Diese Europäische Norm gilt nur für Leistungsprüfungen, bei denen die Einrichtung für eine Prüfung vorhanden ist.
Compresseurs pour fluides frigorigènes et unités de condensation pour la réfrigération - Essais de performances et méthodes d'essai - Partie 1: Compresseurs pour fluides frigogènes
La présente Norme européenne spécifie les méthodes d’essai des performances des compresseurs pour fluides frigorigènes. Ces méthodes fournissent des résultats suffisamment précis pour la détermination de la puissance frigorifique, de la puissance absorbée, du débit masse du fluide frigorigène, du rendement isentropique et du coefficient de performance.
La présente Norme européenne s'applique uniquement aux essais de performance où l'équipement d'essai est disponible.
Kompresorji in kondenzacijske enote za hladilne naprave - Preskušanje lastnosti in preskusne metode - 1. del: Kompresorji za hladilne snovi
Ta del tega evropskega standarda se uporablja samo za kompresorje za hladilne tekočine in opisuje izbrane metode za preskušanje zmogljivosti. Te metode zagotavljajo dovolj natančne rezultate za določanje zmogljivosti hlajenja, porabe energije, pretoka hladilne tekočine, izentropne učinkovitosti in koeficienta zmogljivosti. Ta standard se uporablja samo za preskuse zmogljivosti, ki se izvajajo v delavnicah proizvajalca oziroma kjerkoli je na voljo dovolj natančna oprema za izvajanje preskusov. Vrsta merilnega instrumenta in dopustna negotovost meritve sta navedeni v normativnem dodatku A.
General Information
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Overview
EN 13771-1:2016 is the CEN European standard that defines performance testing and test methods for refrigerant compressors. It specifies how to determine key performance metrics - refrigerating capacity, power absorbed, refrigerant mass flow, isentropic efficiency and coefficient of performance (COP) - using standardized laboratory test procedures. The standard applies where suitable test equipment is available and supersedes EN 13771-1:2003.
Key topics and requirements
- Scope and purpose: Standardized test methods to produce accurate, repeatable compressor performance data for refrigeration and heat pump applications.
- Measured performance parameters: Refrigerating capacity, power absorbed, refrigerant mass flow, isentropic efficiency, COP.
- Uncertainty and test conditions: Clause on uncertainty of measurement and defined test conditions to ensure comparability of results.
- Test methods: Includes calorimetric and flow-meter based approaches:
- Method A–C: Calorimetric methods (secondary fluid, dry-system refrigerant calorimeter, water-cooled condenser/gas cooler).
- Method D–E: Refrigerant gas flow meters and liquid-line flow measurement.
- Calibration and measurement practice: Requirements for calibration of calorimeters, heat leakage compensation, reference temperatures, and accurate refrigerant property data.
- Power measurement: Procedures for measuring absorbed power for both externally driven and motor compressors.
- Additional technical requirements: Oil circulation, fractionation checks, test period and steady-state criteria, recording of measured data, and required test-report content.
- Expanded coverage: Adds provisions for two-stage/economized compressors, transcritical cycles, inverter-driven compressors, cyclic capacity control and part-load conditions (mandate M/488).
Applications
- Product performance verification and R&D for compressor manufacturers.
- Independent test laboratories performing type testing, certification and comparative performance evaluation.
- HVACR system designers and specifiers using reliable compressor data to size equipment and predict system COP.
- Regulatory bodies and conformity assessment organizations requiring standardized, traceable test data.
- Research organizations studying compressor performance across refrigerants and operating conditions.
Who should use this standard
- Compressor and condensing unit manufacturers
- Accredited testing laboratories
- HVAC/R engineers, system integrators and consultants
- Certification bodies and compliance engineers
- R&D teams developing new refrigerants or compressor technologies
Related standards
- EN 378-2 (Refrigerating systems and heat pumps - Safety and environmental requirements - Design, construction and testing) - normative reference in EN 13771-1:2016.
- Other parts of EN 13771 (where applicable) and national implementations by CEN member bodies.
Keywords: EN 13771-1:2016, refrigerant compressors, performance testing, test methods, refrigerating capacity, isentropic efficiency, COP, calorimetric methods, flow meter methods, uncertainty of measurement, inverter-driven compressors.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kompresorji in kondenzacijske enote za hladilne naprave - Preskušanje lastnosti in preskusne metode - 1. del: Kompresorji za hladilne snoviKältemittel-Verdichter und Verflüssigungssätze für die Kälteanwendung - Leistungsprüfung und Prüfverfahren - Teil 1: Kältemittel-VerdichterCompresseurs pour fluides frigorigènes et unités de condensation pour la réfrigération - Essais de performances et méthodes d'essai - Partie 1: Compresseurs pour fluides frigogènesCompressors and condensing units for refrigeration - Performance testing and test methods - Part 1: Refrigerant compressors27.200Hladilna tehnologijaRefrigerating technology23.140VWURMLCompressors and pneumatic machinesICS:Ta slovenski standard je istoveten z:EN 13771-1:2016SIST EN 13771-1:2017en,fr,de01-januar-2017SIST EN 13771-1:2017SLOVENSKI
STANDARDSIST EN 13771-1:20041DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13771-1
November 2016 ICS 23.140; 27.200 Supersedes EN 13771-1:2003
English Version
Compressors and condensing units for refrigeration - Performance testing and test methods - Part 1: Refrigerant compressors
Compresseurs pour fluides frigorigènes et unités de condensation pour la réfrigération - Essais de performances et méthodes d'essai - Partie 1: Compresseurs pour fluides frigogènes
Kältemittel-Verdichter und Verflüssigungssätze für die Kälteanwendung - Leistungsprüfung und Prüfverfahren - Teil 1: Kältemittel-Verdichter This European Standard was approved by CEN on 13 August 2016.
This European Standard was corrected and reissued by the CEN-CENELEC Management Centre on 23 November 2016.
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 © 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13771-1:2016 E SIST EN 13771-1:2017
Conversion of measured performance data to specified test conditions for compressors with intermediate pressure port . 36 Bibliography . 39
addition of two-stage and economized compressors; d) addition of transcritical application; e) addition of test requirements for inverter driven compressors; f) addition of cyclic capacity control; g)
addition of the part load conditions according to mandate M/488. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: 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 the United Kingdom. SIST EN 13771-1:2017
a) Circuit diagram b) Pressure vs enthalpy diagram Key 1 refrigerant gas at the compressor inlet 2 refrigerant gas at the compressor outlet 3 refrigerant gas at the inlet of the condenser/gas cooler 4 refrigerant at the outlet of the condenser or gas cooler 5 refrigerant fluid at the inlet of the expansion device 6 refrigerant gas at the outlet of the calorimeter A compressor B condenser C expansion device D evaporator
Figure 1 — Refrigerant circuit 4 Uncertainty of measurement and test conditions 4.1 Uncertainty of performance data Measuring instruments shall be selected and calibrated so that the final result is within the maximum uncertainties of the measured value as indicated: — refrigerating capacity: ± 2,5 %; — electrical power absorbed: ± 1 % and — mechanical power absorbed: ± 2,5 %. 4.2 Uncertainty of measurement Uncertainty values are considered to cover a 95 % confidence interval, i.e. ± 2 times the standard deviation. Except where otherwise stated in the particular clauses, measurements shall be carried out within the maximum uncertainty of the measured value as indicated: — Absolute pressure: ± 1 %; — Electrical: SIST EN 13771-1:2017
Current ± 1 %;
Frequency: ± 1 %;
Power ± 1 %;
Voltage ± 1 %; — Refrigerant flow: ± 1 %; — Rotary speed: ± 0,07 %; — Mass: ± 0,2 %; — Temperatures:
Temperature for differences: ± 0,05 K;
Temperature differences: ± 1 %;
other temperatures: ± 0,3 K; — Time: ± 0,1 %; — Torque: ± 1 %. — Water flow: ± 1 %. Adherence to the limits listed above does not ensure the requirements of 4.1 are obtained automatically. 4.3 Test conditions The specified test conditions under which the test is to be performed and their allowable deviations are given in Table 3. SIST EN 13771-1:2017
(10) SIST EN 13771-1:2017
b) Pressure vs enthalpy diagram (subcritical)
a) Circuit diagram c) Pressure vs enthalpy diagram (transcritical) Key 1 refrigerant gas at the compressor inlet at the specified test conditions 2 refrigerant gas at the compressor outlet 5 refrigerant fluid at the inlet of the expansion device 6 refrigerant gas at the outlet of the calorimeter A compressor B condenser/gas cooler C expansion device E heater F calorimeter ts temperature of the secondary fluid tcal temperature of the calorimeter surface Figure 2 — Secondary fluid calorimeter, Method A SIST EN 13771-1:2017
b) Pressure vs enthalpy diagram (subcritical)
a) Circuit diagram c) Pressure vs enthalpy diagram (transcritical) Key 1 refrigerant gas at the compressor inlet 2 refrigerant gas at the compressor outlet 5 refrigerant fluid at the inlet of the expansion device 6.1 refrigerant gas at the outlet of F1 6.7 refrigerant gas at the outlet of F7 7 refrigerant fluid at the intermediate pressure port to the compressor A compressor B condenser/gas cooler C1 expansion device C7 expansion device E1 heater of F1 E7 heater of F7 F1 calorimeter F7 calorimeter ts1 temperature of the secondary fluid of F1 ts7 temperature of the secondary fluid of F7 tcal1 surface temperature of F1 tcal7 surface temperature of F7 Figure 3 — Secondary fluid calorimeters, method A for compressor with intermediate pressure inlet SIST EN 13771-1:2017
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Frequently Asked Questions
EN 13771-1:2016 is a standard published by the European Committee for Standardization (CEN). Its full title is "Compressors and condensing units for refrigeration - Performance testing and test methods - Part 1: Refrigerant compressors". This standard covers: This European Standard specifies performance test methods for refrigerant compressors. These methods provide sufficiently accurate results for the determination of the refrigerating capacity, power absorbed, refrigerant mass flow, isentropic efficiency and the coefficient of performance. This European Standard applies only to performance tests where the equipment for testing is available.
This European Standard specifies performance test methods for refrigerant compressors. These methods provide sufficiently accurate results for the determination of the refrigerating capacity, power absorbed, refrigerant mass flow, isentropic efficiency and the coefficient of performance. This European Standard applies only to performance tests where the equipment for testing is available.
EN 13771-1:2016 is classified under the following ICS (International Classification for Standards) categories: 23.140 - Compressors and pneumatic machines; 27.200 - Refrigerating technology. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 13771-1:2016 has the following relationships with other standards: It is inter standard links to EN 13771-1:2003. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 13771-1:2016 is associated with the following European legislation: EU Directives/Regulations: 206/2012; Standardization Mandates: M/495. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
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