BS EN 15879-1-2011 Testing and rating of direct exchange ground coupled heat pumps with electrically driven compressors for space heating and or cooling Direct exchange-to-water he.pdf

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 15879-1:2011Testing and rating of directexchange ground coupled heatpumps with electrically drivencompressors for space heatingand/or coolingPart 1: Direct exchange-to-wate

2、r heatpumpsBS EN 15879-1:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 15879-1:2011.The UK participation in its preparation was entrusted to TechnicalCommittee RHE/17, Testing of air conditioning units.A list of organizations represented on this committee

3、 can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 64485 6ICS 27.080Compliance with a British Standard cannot confer immunity fromlegal obligation

4、s.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 March 2011.Amendments issued since publicationDate Text affectedBS EN 15879-1:2011EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15879-1 February 2011 ICS 27.080 English Version Testin

5、g and rating of direct exchange ground coupled heat pumps with electrically driven compressors for space heating and/or cooling - Part 1: Direct exchange-to-water heat pumps Essais et dtermination des caractristiques des pompes chaleur dtente directe avec le sol avec compresseur entran par moteur le

6、ctrique pour le chauffage et/ou la rfrigration des locaux - Partie 1: Pompes chaleur change direct avec leau Prfung und Leistungsbemessung von erdreichgekoppelten Direktbertragung - Wrmepumpen mit elektrisch angetriebenen Verdichtern zur Raumbeheizung und/oder -khlung - Teil 1: Direktbertragung/Wass

7、er-WrmepumpeThis European Standard was approved by CEN on 8 January 2011. 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 bibliogr

8、aphical 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 responsibi

9、lity 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, France, Germany, Greece,

10、 Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management

11、Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15879-1:2011: EBS EN 15879-1:2011EN 15879-1:2011 (E) 2 Contents Page Foreword 41 Scope 52 Normative references 53 Terms and definitions

12、.54 Classification 65 Test conditions 65.1 Environmental conditions and electrical power supply requirements 65.2 Rating conditions.76 Rating capacity tests .86.1 Basic principles .86.1.1 Heating capacity 86.1.2 Cooling capacity 96.1.3 Power input of liquid pumps 96.2 Test equipment and facility . 1

13、06.2.1 General requirements . 106.2.2 Indoor heat exchanger . 106.2.3 Brine-bath requirements 106.3 Installation and connection of the test object . 106.3.1 Installation . 106.3.2 Refrigerant charge 116.3.3 Setting of inverter type control units 116.4 Uncertainties of measurement 116.5 Test procedur

14、e 126.5.1 Steady state condition . 126.5.2 Measurement of heating capacity or cooling capacity . 126.6 Test results 126.6.1 Data to be recorded 126.6.2 Performance calculation 137 Operational requirements 147.1 Temperature operating range 147.2 Safety tests 147.2.1 General . 147.2.2 Pressure drop 14

15、7.2.3 Shutting off the heat transfer medium flow . 157.2.4 Complete power supply failure . 158 Test report . 158.1 General information 158.2 Additional information . 168.2.1 Rating plate . 168.2.2 Refrigerant lines 168.2.3 Design and dimensions of the in-ground heat exchanger . 168.3 Test results 16

16、8.3.1 Performance rating tests . 168.3.2 Limits of operation 168.3.3 Safety tests 179 Marking 1710 Technical data sheet 1710.1 General description 17BS EN 15879-1:2011EN 15879-1:2011 (E) 3 10.2 Performance characteristics 1710.2.1 Rating characteristics . 1710.2.2 Additional characteristics. 1810.2.

17、3 Sound characteristics . 1810.3 Electrical characteristics 1810.4 Operating range . 1811 Instructions 1811.1 General . 1811.2 Physical description 1811.2.1 Refrigerant and liquid circuits . 1811.2.2 Additional heating devices, when integral to the unit . 1911.2.3 Control and safety . 1911.3 Instruc

18、tions for installation 1911.4 Instruction for maintenance . 19Annex A (informative) 20A.1 Description of the brine bath 20Annex B (informative) Example for the calculation of the Coefficient of Performance (COP) and the Energy Efficiency Ratio (EER) . 21B.1 Calculation of the COP for heating applica

19、tions 21B.1.1 Input Data . 21B.1.2 Calculation of the heating power PH22B.1.3 Calculation of the volume flow rate q 23B.1.4 Calculation of the COP if a liquid pump is integrated into the heat pump unit 23B.1.5 Calculation of the COP if a liquid pump is not integrated into the heat pump unit 23B.2 Ca

20、lculation of the EER for cooling applications 23B.2.1 General . 23B.2.2 Calculation of the EER if a liquid pump is integrated into the heat pump unit . 23B.2.3 Calculation of the EER if a liquid pump is not integrated into the heat pump unit 24BS EN 15879-1:2011EN 15879-1:2011 (E) 4 Foreword This do

21、cument (EN 15879-1:2011) has been prepared by Technical Committee CEN/TC 113 “Heat pumps and air conditioning units”, the secretariat of which is held by AENOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at t

22、he latest by August 2011, and conflicting national standards shall be withdrawn at the latest by August 2011. 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

23、all such patent rights. 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, France, Germany, Greece, H

24、ungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 15879-1:2011EN 15879-1:2011 (E) 5 1 Scope This European Standard specifies the terms and definitions, te

25、st conditions, test procedures and requirements for the rating and performance of direct exchange-to-water ground coupled heat pumps with electrically driven compressors, used for space heating and/or cooling. Brine can be used instead of water. This European Standard applies to factory-made units w

26、ith horizontal in-ground collectors. In the case of units consisting of several parts, this standard applies only to those designed and supplied as a complete package. Water-to-direct exchange and direct-exchange-to-direct exchange ground coupled heat pumps are covered by EN 15879-2. Direct exchange

27、-to-air ground coupled heat pumps and air-to-direct exchange heat pumps are covered by EN 15879-3. This European Standard does not apply to units using transcritical cycles, e.g. with CO2as refrigerant. 2 Normative references The following referenced documents are indispensable for the application o

28、f this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 12102:2008, Air conditioners, liquid chilling packages, heat pumps and dehumidifiers with electrically driven c

29、ompressors for space heating and cooling Measurement of airborne noise Determination of the sound power level EN 14511-1:2007, Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling Part 1: Terms and definitions EN 14511-3, Air co

30、nditioners, liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling Part 3: Test Methods EN 60204-1, Safety of machinery Electrical equipment of machines Part 1: General requirements (IEC 60204-1:2005, modified) EN 60335-2-40, Household and similar

31、electrical appliances Safety Part 2-40: Particular requirements for electrical heat pumps, air-conditioners and dehumidifiers (IEC 60335-2-40:2002, modified) EN 61000-3-11, Electromagnetic compatibility (EMC) Part 3-11: Limits; Limitation of voltage changes, voltage fluctuations and flicker in publi

32、c low-voltage supply systems; Equipment with rated current 75 A and subject to conditional connection (IEC 61000-3-11:2000) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 14511-1:2007 and the following apply. 3.1 direct exchange ground coupled heat p

33、ump heat pump which consists of an in-ground heat exchanger and a heat pump module 3.2 in-ground heat exchanger heat exchanger buried in the ground that consists of a series of parallel loops, each consisting of a single tube, in which the refrigerant is circulating for a direct heat exchange with t

34、he ground BS EN 15879-1:2011EN 15879-1:2011 (E) 6 NOTE 1 The in-ground heat exchanger is connected to the heat pump module through vapour and liquid refrigerant lines. NOTE 2 The in-ground heat exchanger is specified by the number and length of the parallel loops and the diameter of the single tubes

35、. 3.3 heat pump module assembly containing the refrigerating circuit components including the compressor, the expansion device, the indoor heat exchanger, all auxiliary components, control and safety devices and the refrigerant lines excluding the in-ground heat exchanger 3.4 brine-bath temperature

36、temperature of the brine which is maintained in the bath where the in-ground heat exchanger tubes are immersed, and which is calculated as the mean value of the brine at the inlet and outlet of the bath 4 Classification The units are denominated in such a way that the heat transfer medium for the ou

37、tdoor heat exchanger is given first, followed by the heat transfer medium for the indoor heat exchanger (see Table 1). Table 1 Designation of direct exchange-to-water (brine) heat pumps Outdoor heat exchanger Indoor heat exchanger Designation Classification In-ground heat exchanger Water Direct exch

38、ange-to-water units DX / water Brine Direct exchange-to-brine units DX / brine 5 Test conditions 5.1 Environmental conditions and electrical power supply requirements The test shall be carried out under the environmental conditions around the heat pump module specified in Table 2. For all units, ele

39、ctrical power, voltage and frequency shall be given by the manufacturer. Table 2 Environmental conditions Type Measured quantity Environmental conditions DX / water or DX / brine to be installed outdoors heating operation Air dry bulb temperature 0 C to 7 C DX / water or DX / brine to be installed o

40、utdoors cooling operation Air dry bulb temperature 25 C to 35 C DX / water or DX / brine to be installed indoors heating or cooling operation Air dry bulb temperature 15 C to 30 C BS EN 15879-1:2011EN 15879-1:2011 (E) 7 5.2 Rating conditions For the rating tests, the appropriate test conditions shal

41、l be applied in accordance with: Table 3 for the heating mode; Table 4 for the cooling mode. Table 3 Rating conditions for the heating mode In-ground heat exchanger Indoor heat exchanger Bath temperature (C) Inlet temperature (C) Outlet temperature (C) Standard rating conditions DX / water or DX / b

42、rine for low heating temperature applications 4 30 35 DX / water or DX / brine for medium heating temperature applications 4 40 45 DX / water or DX / brine for high heating temperature applications 4 47 55 DX / water or DX / brine for very high heating temperature applications 4 55 65 Application ra

43、ting conditions DX / water or DX / brine for low heating temperature applications 4 25 30 DX / water and DX / brine for low heating temperature applications 1,5 30 35 DX / water and DX / brine for medium heating temperature applications 1,5 40 45 BS EN 15879-1:2011EN 15879-1:2011 (E) 8 Table 4 Ratin

44、g conditions for the cooling mode In-ground heat exchanger Indoor heat exchanger Bath temperature (C) Inlet temperature (C) Outlet temperature (C) Standard rating conditions DX / water or DX / brine for high cooling temperature applications 30 23-a18 DX / water or DX / brine for low cooling temperat

45、ure applications 30 12-a7 Application rating conditions DX / water or DX / brine for high cooling temperature applications 10 b 18 DX / water or DX / brine for low cooling temperature applications 10 b 7 (a) For reversed cycle units, the test is performed at the flow rate obtained during the test fo

46、r the corresponding standard rating conditions in the heating mode in Table 3. (b) With the water flow rate as determined for the standard rating condition. 6 Rating capacity tests 6.1 Basic principles 6.1.1 Heating capacity The heating capacity of direct exchange heat pumps shall be determined in a

47、ccordance with the direct method at the water or brine heat exchanger. This shall be done by determination of the volume flow of the heat transfer medium and the inlet and outlet temperatures, taking into consideration the specific heat capacity and density of the heat transfer medium. The heating c

48、apacity shall be determined using the following formula: PH= q cp T (1) where PHis the heating capacity, in watts; q is the volume flow rate, in cubic meters per second; is the density, in kilograms per cubic meter; cpis the specific heat at constant pressure, in joules per kilogram per kelvin; T is

49、 the difference between inlet and outlet temperatures, in kelvin. The heating capacity shall be corrected for the heat from the circulating pump: if the pump at the indoor heat exchanger is an integral part of the unit, the same power (calculated in 6.1.3.1) which is excluded from the total power input shall also be subtracted from the heating capacity;