欧盟ERP指令prEN 148252010 (E).pdf

EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM DRAFT prEN 14825 June 2010 ICS 27.080;91.140.30 Will supersede CEN/TS 14825:2003English Version Air conditioners,liquid chilling packages and heat pumps,with electrically driven compressors,for space heating and cooling-Testing and rating at part load conditions and calculation of seasonal performance Climatiseurs,groupes refroidisseurs de liquide et pompes chaleur avec compresseur entran par moteur lectrique pour le chauffage et la rfrigration des locaux-Essais et dtermination des caractristiques charge partielle et calcul de performance saisonnire Luftkonditionierer,Flssigkeitskhlstze und Wrmepumpen mit elektrisch angetriebenen Verdichtern zur Raumheizung und-khlung-Prfung und Leistungsmessung unter Teillastbedingungen und Berechnung der jahreszeitbedingten Leistung This draft European Standard is submitted to CEN members for second enquiry.It has been drawn up by the Technical Committee CEN/TC 113.If this draft becomes a European Standard,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.This draft European Standard was established by CEN 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 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,Romania,Slovakia,Slovenia,Spain,Sweden,Switzerland 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 European Standard.It is distributed for review and comments.It is subject to change without notice and shall not be referred to as a European Standard.EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre:Avenue Marnix 17,B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members.Ref.No.prEN 14825:2010:EprEN 14825:2010(E)2 Contents Page Foreword.4?Introduction.5?1 Scope.6?2 Normative references.6?3 Terms and definitions.6?4 Part load conditions in cooling mode.11?4.1 General.11?4.2 Air-to-air units.12?4.3 Water-to-air units and brine to air units.12?4.4 Air-to-water units.12?4.5 Water-to-water and brine-to-water units.13?5 Part load conditions in heating mode.14?5.1 General.14?5.2 Air-to-air units.14?5.3 Water to air and brine-to-air units.15?5.4 Air-to-water units.16?5.4.1 General.16?5.4.2 Low temperature application.17?5.4.3 Medium temperature application.18?5.4.4 High temperature application.20?5.5 Water to water and brine-to-water units.21?5.5.1 General.21?5.5.2 Low temperature application.22?5.5.3 Medium temperature application.23?5.5.4 High temperature application.25?6 Calculation methods for reference SEER and reference SEERon.26?6.1 General Formula for calculation of reference SEER.26?6.2 Calculation of the Reference Annual cooling demand(Qce).26?6.3 Calculation of Reference SEER on.27?6.4 Calculation procedure for determination of EER values at part load conditions B,C,D.28?6.4.1 General.28?6.4.2 For air to air and water to air units.28?6.4.3 Air to water,water to water and brine to water units.29?7 Calculation methods for reference SCOP,reference SCOPon and reference SCOPnet.29?7.1 General formula for calculation of reference SCOP.29?7.2 Calculation of the Reference Annual heating demand(Qhe).30?7.3 Calculation of Reference SCOPon and Reference SCOPnet.30?7.4 Calculation procedure for determination of COP values at part load conditions A,B,C,D.32?7.4.1 General.32?7.4.2 For Air to air,Brine to Air and Water to air units.33?7.4.3 For Air to water,water to water and Brine to Water units.34?8 Test methods for testing capacities,EER and COP values during active mode at part load conditions.34?8.1 General.34?8.2 Basic principles.35?8.3 Part load testing for air to water and water to water units.35?8.4 Uncertainties of measurement.36?prEN 14825:2010(E)3 8.5 Test procedures for units with fixed capacity.36?8.5.1 General.36?8.5.2 Air-to-air and water-to-air units determination of the degradation co-efficient Cd.36?8.5.3 Air-to-water and water-to-water units units determination of the degradation factor Cc.38?8.6 Test procedure for variable capacity units(Air to Air,Air to Water,Water to Air,Water/Brine to Water).38?8.6.1 Information Supply Requirement.38?8.6.2 Test.38?9 Test methods for electric power consumption during thermostat off mode,standby mode and crankcase heater mode.38?9.1 Measurement of electric power consumption during thermostat off mode.38?9.2 Measurement of the electric power consumption during standby mode.39?9.3 Measurement of the electric power consumption during Crankcase heater mode.39?9.4 Measurement of the electric power consumption during off mode.39?10 Test report.39?11 Technical Data sheet.39?Annex A(informative)Calculation example for reference SEER and reference SEERon Application of an air to air unit with variable speed.40?A.1 Calculation of SEERon.40?A.1.1 40?A.1.2 SEER.41?Annex B(informative)Calculation example for reference reference SCOPon and reference SCOPnet of an air to water heat pump used for floor heating.42?Annex C(informative)Determination of Reference Annual Cooling/Heating demands and determination of hours for active mode,thermostat off,standby,off mode and crankcase heater mode.46?C.1 General track.46?C.2 Determination of reference annual cooling/heating demands and hours for active mode,thermostat off,standby,off mode.46?C.3 Hours used for crankcase heater mode.48?Annex D(informative)Compensation method for air-to-water and water/brine to water units.49?D.1 General.49?D.2 Compensation system for reduced capacity test in cooling mode.49?D.3 Compensation system for reduced capacity test in heating mode.49?Annex E(informative)Rating and Calculation Method with Fixed Bivalent Temperature for air to air heat humps.51?E.1 Scope.51?E.2 General.51?E.3 Fixed bivalent Point.51?prEN 14825:2010(E)4 Foreword This document(prEN 14825:2010)has been prepared by Technical Committee CEN/TC 113“Heat pumps and air conditioning units”,the secretariat of which is held by AENOR.This document is currently submitted to the second CEN Enquiry.This document will supersede CEN/TS 14825:2003.prEN 14825:2010(E)5 Introduction Heat pumps,air conditioners and liquid chilling packages are,at present,selected and compared at a rated condition.This condition does not represent the usual operating conditions of the equipment over a season.This operating condition can be better assessed by comparing equipment at representative reduced capacities and determining the Seasonal Energy Efficiency Ratio and Seasonal Coefficient of Performance.Fixed capacity heat pumps,air conditioners and liquid chilling packages deal with varying loads by varying the operation time.The efficiency of the system is dependent on the effectiveness of the controlling thermostats.Variable capacity air conditioners,liquid chilling packages and heat pumps,by continuous or step control of the compressor,can more closely match the varying load improving system efficiency.This standard provides part load conditions and calculation methods for calculating the Seasonal Energy Efficiency Ratio(SEERon)and Seasonal Coefficient of Performance(SCOPon and SCOPnet)of such units when they are used to fulfil the cooling and heating demands.Other energy consumptions can occur when the unit is not used to fulfil the cooling and heating demands such as those from a crank case heater or when the unit is on standby.These consumptions are considered in the calculation methods for reference SEER and reference SCOP.Reference SEER/SEERon and reference SCOP/SCOPon/SCOPnet calculations may be based on calculated or tested values.In case of tested values,this standard gives the methods for testing heat pumps,air conditioners and liquid chilling packages at part load conditions.The rating conditions and test methods of units operating at rated and application capacities are given in EN 14511-2 and EN 14511-3.The methods for calculation of system energy efficiencies for specific heat pump systems in buildings are given in EN 15316-4-2.prEN 14825:2010(E)6 1 Scope This European Standard covers testing of air conditioners,heat pumps and liquid chilling packages in part load conditions.This standard gives the calculation methods for the determination of reference seasonal energy efficiency SEER and SEERon and reference seasonal coefficient of performance SCOP,SCOPon and SCOPnet.The standard applies to factory made units defined in EN 14511-1,except single duct,control cabinet and close control units.This standard serves as an input for the calculation of the system energy efficiency in heating mode of specific heat pump systems in buildings,as stipulated in the standard EN 15316-4-2.2 Normative references The following referenced documents are indispensable for the application 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 14511-1:2007,Air conditioners,liquid chilling packages and heat pumps,with electrically driven compressors,for space heating and cooling?Part?:Terms and definitions EN 14511-2,Air conditioners,liquid chilling packages and heat pumps,with electrically driven compressors,for space heating and cooling?Part 2:Test conditions EN 14511-3,Air conditioners,liquid chilling packages and heat pumps,with electrically driven compressors,for space heating and cooling?Part 3:Test methods EN15316-4-2,Heating systems in buildings?Method for calculation of system energy requirements and system efficiencies?Part 4-2:Space heating generation systems,heat pump systems 3 Terms and definitions For the purposes of this document the terms and definitions given in EN 14511-1:2007 and the following apply,unless otherwise stated in this standard.3.1 reference design conditions for cooling Tdesignc temperature conditions at 35 C dry bulb(24 C wet bulb)outdoor temperature and 27 C dry bulb(19 C wet bulb)indoor temperature 3.2 reference design conditions for heating Tdesignh temperature conditions for average,colder and warmer climates prEN 14825:2010(E)7 Tdesign average temperature conditions at-10oC dry bulb outdoor temperature and 20oC dry bulb indoor temperature T design colder temperature conditions at-22C dry bulb outdoor temperature and 20C dry bulb indoor temperature T design warmer temperature conditions at+2C dry bulb outdoor temperature and 20C dry bulb indoor temperature 3.3 full load Pdesign cooling(Pdesignc)or heating(Pdesignh)demand of the building at Tdesign conditions NOTE It is possible to calculate the SEER/SEERon or SCOP/SCOPon/SCOPnet of a unit for more than one Pdesign value.3.4 part load cooling or heating demand of the building which is less than the full load 3.5 part load ratio load divided by the full load NOTE If 100%part load ratio is mentioned,this equals full load.3.6 declared capacity DC cooling(or heating)capacity a unit can deliver at any temperature condition A,B,C,D,E or F,as declared by the manufacturer NOTE 1 This is the capacity delivered by the refrigerant cycle of the unit without supplementary heaters,even if those are integrated in the unit.NOTE 2 The temperature conditions for part load conditions A,B,C,D,E or F are explained in the tables of this standard.NOTE 3 The declared capacity may or may not be equal to the part load or full load.In the equations of this standard,declared capacity is used where it is not equal to part load or full load.3.7 capacity ratio CR cooling(or heating)part load or full load divided by the declared cooling(or heating)capacity of the unit at the same temperature conditions 3.8 reference cooling season representative climate profile by bins for cooling corresponding to the reference design conditions for cooling NOTE The climate profile for cooling is explained in Table 29 of this standard.3.9 reference heating season(s)representative climate profile(s)by bins for heating corresponding to the reference design conditions for heating prEN 14825:2010(E)8 NOTE There are three reference heating seasons:A average C colder and W warmer.The climate profiles for heating are explained in table 30 of this standard.3.10 bin hours hj sum of all hours occurring at a given temperature for a specific location NOTE 1 The number is rounded to a whole number and stems from representative weather data over the 1982-1999 period.NOTE 2 For the reference heating seasons the specific locations are Strasbourg(average),Helsinki(colder)and Athens(warmer).3.11 bivalent temperature Tbivalent lowest outdoor temperature point at which the heat pump is declared to have a capacity able to meet 100%of the heating demand NOTE Below this point,the unit may still deliver capacity,but additional back up heating is necessary to fulfill the full heating demand.The declared bivalent temperature can be any outdoor temperature within following limits:for the average heating season,the bivalent temperature is +2CDB or lower for the colder heating season,the bivalent temperature is-7CDB or lower for the warmer heating season,the bivalent temperature is+7CDB or lower 3.12 operation limit temperature TOL lowest outdoor temperature at which the heat pump can still deliver heating capacity,as declared by the manufacturer NOTE For air to water,water to water or brine to water units,TOL may also depend on the flow temperature.3.13 reference annual cooling demand Qce representative annual cooling demand which is used for the calculation of reference SEER NOTE 1 For certain types of units,Qce is calculated by multiplying the full load value in cooling(Pdesignc)by the number of equivalent cooling hours.This is explained in Annex C of this standard.NOTE 2 The representative annual cooling demand is based on an estimated average use pattern.This is explained in Annex C of this standard.3.14 reference annual heating demand(s)Qhe representative annual heating demand(s)which are used for the calculation of reference SCOP NOTE 1 There are three reference heating demands:A average C colder and W warmer,corresponding to the three reference heating seasons.NOTE 2 For certain types of units,Qhe is calculated by multiplying the full load value in heating(Pdesignh)by the number of equivalent heating hours.This is explained in Annex C of this standard.prEN 14825:2010(E)9 NOTE 3 The representative annual heating demand is