EN 12900:2013
(Main)Refrigerant compressors - Rating conditions, tolerances and presentation of manufacturer's performance data
Refrigerant compressors - Rating conditions, tolerances and presentation of manufacturer's performance data
This European Standard specifies the rating conditions, tolerances and the method of presenting manufacturer’s data for positive displacement refrigerant compressors. These include single stage compressors and single and two stage compressors using a means of fluid subcooling. This is required so that a comparison of different refrigerant compressors can be made. The data relate to the refrigerating capacity and power absorbed and include requirements for part-load performance where applicable.
Kältemittel-Verdichter - Nennbedingungen, Toleranzen und Darstellung von Leistungsdaten des Herstellers
Diese Europäische Norm legt die Nennbedingungen, Toleranzen und die Darstellung der Leistungsdaten des Herstellers für Kältemittel-Verdichter des Verdrängertyps fest. Dazu gehören einstufige Verdichter sowie ein- und zweistufige Verdichter mit einer Einrichtung zur Fluid-Unterkühlung. Dies ist notwendig, damit ein Vergleich von unterschiedlichen Kältemittel-Verdichtern durchgeführt werden kann. Die Daten beziehen sich auf die Kälteleistung und die Leistungsaufnahme und schließen den Teillastbetrieb ein, sofern zutreffend.
Compresseurs pour fluides frigorigènes - Conditions de détermination des caractéristiques, tolérances et présentation des performances par le fabricant
La présente Norme Européenne spécifie les conditions de détermination des caractéristiques, les tolérances et le mode de présentation des performances par le fabricant, applicables aux compresseurs volumétriques pour fluides frigorigènes. Ceux-ci incluent les compresseurs mono-étagés, ainsi que les compresseurs mono- et bi étagés utilisant un moyen de sous-refroidissement du fluide frigorigène. La présente norme est nécessaire afin de permettre la comparaison de différents compresseurs pour fluides frigorigènes. Les données se rapportent à la puissance frigorifique et à la puissance absorbée, et comprennent les exigences relatives au fonctionnement à en charge partielle, quand cela est applicable.
Kompresorji za hladilne tekočine - Pogoji določanja nazivne moči, toleranc in predstavitev tehničnih karakteristik proizvajalca
Ta evropski standard določa pogoje določanja nazivne moči, toleranc in metod predstavitve podatkov proizvajalca za kompresorje za hladilne tekočine z izpodrivnim delovanjem. Ti vključujejo enostopenjske kompresorje ter eno- in dvostopenjske kompresorje, ki uporabljajo tekoča sredstva za globoko hlajenje. To je potrebno zaradi tega, da se lahko izvede primerjava različnih kompresorjev za hladilne tekočine. Podatki se navezujejo na zmogljivost in absorbirano moč hlajenja ter vključujejo zahteve za delovanje pri delni obremenitvi, kjer je to primerno.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kältemittel-Verdichter - Nennbedingungen, Toleranzen und Darstellung von Leistungsdaten des HerstellersCompresseurs pour fluides frigorigènes - Conditions de détermination des caractéristiques, tolérances et présentation des performances par le fabricantRefrigerant compressors - Rating conditions, tolerances and presentation of manufacturer's performance data27.200Hladilna tehnologijaRefrigerating technology23.140VWURMLCompressors and pneumatic machinesICS:Ta slovenski standard je istoveten z:EN 12900:2013SIST EN 12900:2013en,fr,de01-oktober-2013SIST EN 12900:2013SLOVENSKI
STANDARDSIST EN 12900:20061DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12900
July 2013 ICS 23.140; 27.200 Supersedes EN 12900:2005English Version
Refrigerant compressors - Rating conditions, tolerances and presentation of manufacturer's performance data
Compresseurs pour fluides frigorigènes - Conditions de détermination des caractéristiques, tolérances et présentation des performances par le fabricant
Kältemittel-Verdichter - Nennbedingungen, Toleranzen und Darstellung von Leistungsdaten des Herstellers This European Standard was approved by CEN on 8 June 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
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 12900:2013: ESIST EN 12900:2013
a Reference point A5, Table 6. The refrigerating capacity shall not allow for any fluid subcooling for subcritical operation. For transcritical operation refrigeration capacity has to be related to the gas cooler outlet temperature and the compressor discharge pressure. If reference points mentioned in Table 5 to Table 7 fall inside the compressor application envelope, compressor performances shall be displayed at those rating conditions. For CO2 transcritical applications gas cooler outlet temperature shall be displayed. NOTE Tables 2 to 4 refer to economised cycles. SIST EN 12900:2013
compressor inlet Liquid subcooling (K) or temperature (°C) Saturated intermediate (dew) temperature (°C)
or pressure (bar) Ambient temperature around the compressor Compressor application Halocarbons and hydrocarbons including refrigerant blends 20 °C or 10 K 5 K above bubble point temperature corresponding to the pressure at the intermediate port of the compressor to be specified with reference to suction and discharge pressure 35 °C Any application with individually selected subcooler or aftercooler R 744 (CO2) 10 Ka R-717 (NH3) 5 K Other refrigerants As appropriate, to be clearly specified in performance data NOTE For subcritical operation liquid entering the subcooler is at saturated (bubble) temperature equivalent to the refrigerant pressure at the compressor outlet. For transcritical operation fluid entering the aftercooler is at gas cooler outlet temperature and compressor discharge pressure. a Or other conditions from Table 6. The refrigerating capacity includes the subcooling provided by the subcooler or additional cooling provided by the aftercooler. For CO2 transcritical applications gas cooler outlet temperature shall be displayed. SIST EN 12900:2013
intermediate (dew) temperature (°C)
or pressure
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.