BS ISO 13612-1-2014 Heating and cooling systems in buildings Method for calculation of the system performance and system design for heat pump systems Design and dimensioning《建筑物内供暖.pdf

1、BSI Standards PublicationBS ISO 13612-1:2014Heating and cooling systemsin buildings Method forcalculation of the systemperformance and systemdesign for heat pump systemsPart 1: Design and dimensioningBS ISO 13612-1:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation

2、of ISO 13612-1:2014.The UK participation in its preparation was entrusted to TechnicalCommittee RHE/2, Ventilation for buildings, heating and hot waterservices.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to includ

3、e all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 75209 4ICS 27.080; 91.040.01Compliance with a British Standard cannot confer immunity fromlegal obligations.This

4、 British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 May 2014.Amendments issued since publicationDate Text affectedBS ISO 13612-1:2014 ISO 2014Heating and cooling systems in buildings Method for calculation of the system performance and system desig

5、n for heat pump systems Part 1: Design and dimensioningSystmes de chauffage et de refroissement dans les btiments Mthode de calcul de la performance du systme et de la conception du systme pour les systmes de pompes chaleur Partie 1: Conception et dimensionnementINTERNATIONAL STANDARDISO13612-1First

6、 edition2014-05-01Reference numberISO 13612-1:2014(E)BS ISO 13612-1:2014ISO 13612-1:2014(E)ii ISO 2014 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2014All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any me

7、ans, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva

8、20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 13612-1:2014ISO 13612-1:2014(E) ISO 2014 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope . 12 Normative references 23 Terms and definitions . 24 Symbols and abbrevia

9、tions . 35 System design requirements 45.1 General . 45.2 Heating/cooling source . 45.3 Electrical supply. 55.4 Heat pump system design . 65.5 Positioning 65.6 Noise level . 66 Dimensioning of the heat pump system . 66.1 General . 66.2 Methodology for sizing 76.3 Dimensioning the heat pump system fo

10、r the heating period . 86.4 Determination of the power of the heat pump system for the cooling period .126.5 Oversizing considerations 137 Additional design information for heat pump system .137.1 Hydraulic integration . 137.2 Control of the system 137.3 Safety requirements 137.4 Operational require

11、ments 148 Installation requirements14Annex A (informative) Heat pump technologies and design schemes .15Annex B (informative) Guidelines for the design parameters of the heat pump systems using water as a heat source 47Annex C (informative) Noise levels in the vicinity .48Annex D (informative) Examp

12、le calculations of the domestic hot water (DHW) storage size 49Annex E (informative) Average daily tapping patterns for the domestic hot water production .51Annex F (informative) Commissioning of the system .54Bibliography .58BS ISO 13612-1:2014ISO 13612-1:2014(E)ForewordISO (the International Organ

13、ization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been establish

14、ed has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

15、The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the

16、 editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent

17、 rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an

18、explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this

19、document is ISO/TC 205, Building environment design.ISO 13612 consists of the following parts, under the general title Heating and cooling systems in buildings Method for calculation of the system performance and system design for heat pump systems: Part 1: Design and dimensioning Part 2: Energy cal

20、culationiv ISO 2014 All rights reservedBS ISO 13612-1:2014ISO 13612-1:2014(E)IntroductionThis International Standard will be part of a series of standards on the method for the calculation of heating system energy requirements and heating and cooling system efficiencies. ISO 13612-1 deals with the d

21、esign and sizing of heat pump systems. ISO 13612-2 presents the energy calculation method. ISO 2014 All rights reserved vBS ISO 13612-1:2014BS ISO 13612-1:2014Heating and cooling systems in buildings Method for calculation of the system performance and system design for heat pump systems Part 1: Des

22、ign and dimensioning1 ScopeThis International Standard is applicable to heat pumps for space heating and cooling, heat pump water heaters (HPWH), and heat pumps with combined space heating and cooling and domestic hot water production, in alternate or simultaneous operation, where the same heat pump

23、 is used for space heating and cooling and domestic hot water heating.This part of ISO 13612 establishes the required inputs, calculation methods, and required outputs for heat generation for space heating and domestic hot water production and control of the following heat pump systems: electrically

24、 driven vapour compression cycle (VCC) heat pumps; combustion engine-driven VCC heat pumps; thermally-driven vapour absorption cycle (VAC) heat pumps.This part of ISO 13612 specifies the design and dimensioning criteria for the heating and cooling systems in buildings using heat pumps alone or in co

25、mbination with other heat generators. These include the following: waterwater; brinewater; refrigerantwater (direct expansion systems); airair; airwater; combined; systems driven by electricity or gas.This part of ISO 13612 takes into account the heating requirements of attached systems (e.g. domest

26、ic hot water, process heat) in the design of heat supply, but does not cover the design of these systems. This part of ISO 13612 covers only the aspects dealing with the heat pump, the interface with the heat distribution and emission system (e.g. buffering system), the control of the whole system,

27、and the aspects dealing with the energy source of the system.INTERNATIONAL STANDARD ISO 13612-1:2014(E) ISO 2014 All rights reserved 1BS ISO 13612-1:2014ISO 13612-1:2014(E)Table 1 Heat pump systems (within this scope)Source system (energy extraction)Sink system (energy rejection)Energy sourceaMedium

28、bMedium Energy sinkcExhaust airOutdoor airRefrigerant Refrigerant AirAirAir AirWaterIndoor airWaterSurface waterGround waterWaterWaterIndoor airWaterAir Indoor airGroundBrine(Water)Air WaterWaterIndoor airWaterRefrigerant(Direct expansion)WaterIndoor airWaterRefrigerant Indoor airaEnergy source is t

29、he location where the energy is extracted.bMedium is the fluid transported in the corresponding distribution system.cEnergy sink is the location where the energy is used; this can be the air-conditioned space or water in case of domestic hot water (DHW) production.2 Normative referencesThe following

30、 documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 16818, Building e

31、nvironment design Energy efficiency TerminologyISO 13790, Energy performance of buildings Calculation of energy use for space heating and coolingEN 15243, Ventilation for buildings Calculation of room temperatures and of load and energy for buildings with room conditioning systems3 Terms and definit

32、ionsFor the purposes of this document, the terms and definitions given in ISO 16818 and the following apply.3.1balance point temperaturelowest design external air temperature at which the heat pump output capacity and the building heating demand (heat load) are equalNote 1 to entry: At lower externa

33、l air temperatures, a second heat generator is employed to cover the entire or part of the building heating demand.3.2bivalent alternative modelow-temperature cut outoperational mode in which a second heat generator (e.g. gas boiler) completely accounts for the heat demand of the heating system if t

34、he external temperature falls below the balance point temperature2 ISO 2014 All rights reservedBS ISO 13612-1:2014ISO 13612-1:2014(E)3.3bivalent parallel modeoperational mode in which a second heat generator (e.g. gas boiler) accounts for the remaining heat demand of the heating system which cannot

35、be supplied by the heat pump when the external temperature falls below the balance point temperature3.4coefficient of performanceCOPmomentary ratio of the thermal heat flux (HP) of the heat pump to the electrical power input of the unitNote 1 to entry: The electrical power of the unit includes auxil

36、iary power requirements, but not the additional power requirements for circulation pumps (heat sink and heat source).3.5minimum operating temperatureMOTminimum recommended value of the external temperature to operate the heat pump3.6monovalent modeoperational mode in which the heat pump is designed

37、to cover the entire energy demand of the heating and cooling system aloneNote 1 to entry: The heat pump output capacity is equal to the design heat load.3.7seasonal performance factorratio of the annual heat QHPsupplied by the heat pump to the total electrical energy consumed (including all auxiliar

38、y sources)3.8source (heatcool)source of energy extracted to the heat pump system4 Symbols and abbreviationsThe symbols and units and abbreviations used in this part of ISO 13612 are listed in Tables 2 and 3.Table 2 Symbols and unitsSymbol Description UnitsupplyHeating capacity of the supply system k

39、WMOTMinimum operating temperature (external) Ce, hDesign external temperature (heating) Cmin, hMinimal operating temperature of the heat pump (heating)CTable 3 Abbreviations and subscriptsAbbreviation DescriptionH HeatingC CoolingDWH Domestic hot water ISO 2014 All rights reserved 3BS ISO 13612-1:20

40、14ISO 13612-1:2014(E)5 System design requirements5.1 GeneralThe heat pump system shall be designed to satisfy the design heating and cooling load of the building and the requirements of any attached system.Any other recognized energy load calculation method shall only be used if accepted by the clie

41、nt.The heating supply system and/or the cooling supply system shall be designed and dimensioned taking into account the type of energy source.General consideration shall be given to the energy efficiency of the heat pump system.5.2 Heating/cooling source5.2.1 Air as heat sourceThe minimum air flow d

42、eclared by the manufacturer shall be taken into account when designing the system. For monovalent systems, the required capacity of the heat pump shall be determined by using the design external air temperature. For bivalent systems, a suitable balance point temperature shall be set depending on the

43、 selected operational mode (bivalent-alternative or bivalent-parallel mode) and the minimum air flow entering the system. The air quality shall be checked and airborne salinity (a function of the distance from seawater) shall be taken into consideration.5.2.2 Water as heat sourceWater sourced from g

44、roundwater, seawater, a lake, or a river can be used as a heat source.The required water flow rate for the heat pump unit shall be made available, taking into account local regulations which can place limits on the availability and flow rates.The average groundwater temperature can be obtained from

45、local authorities, from a test borehole, or (in the case of dwellings) by a qualified assumption (e.g. the annual mean external temperature at the location).The water source shall enable a continuous extraction of the design flow rate of the attached heat pumps. The possible extraction flow rate is

46、dependent on local geological factors and can be ascertained by continuously extracting the nominal flow rate in a test run of sufficient duration to attain quasi-steady-state conditions. For larger systems, hydrogeological investigations (e.g. well test) can be necessary.The quality of the water sh

47、all match the manufacturers requirements. If the manufacturers requirements cannot be achieved (e.g. in the case of seawater), a secondary circuit or water treatment shall be considered (see Annex B).Provisions for returning the water shall be provided. The direction of the ground water flow shall b

48、e taken into account when selecting the position of the injection well. The extraction well shall be situated upstream of the injection well if the heat pump is only used for heating purposes (see Figure 1).The heat extraction system shall be designed and controlled so as to avoid the risk of freezi

49、ng.The water shall be returned to the environment as clean as possible and in accordance with local regulations.4 ISO 2014 All rights reservedBS ISO 13612-1:2014ISO 13612-1:2014(E)Key1 living room2 bathroom3 cellar4 heat exchanger5 heat pump6 storage water heater7 buffer storage8 injection well9 extraction well (including pump)10 ground-water flow directionFigure 1 Arrangement of a heat pump heating system with ground-water flow5.2.3 Ground as heat sourceThe minimum temperature of the ground