JDB111891-2012J12070-201221JMP1EDesignStandardforEnergyEfficiencyofResidentialBuildings2012-06-142013-01-01DesignStandardforEnergyEfficiencyofResidentialBuildingsDB11/891-2012201301012012(2012[2012]222(DBJ11-602-2006(2012201312013413.1.33.1.53.2.23.2.43.2.613.2.93.2.101,33.3.24.1.14.1.74.1.114.1.124.2.34.2.94.2.104.3.34.5.44.5.51,24.5.75.3.215.3.6(DBJ11-602-2006)O20126119101-DB11/891-20122012-06-14-2012618100DB11/891-2012JIJ(DB602-20066288042132)0DB11/891-2012DB11/891-2012I12...................................................................................2363.1..................................................63.273.3...........................................1144.1....................................................154.2.........................................184.3..............................................2.14.4................................234.5.....................255................................................275.1275.2..................................275.3286306.1306.2.......................................................306.330A......32A.1.........32A.233DB11/891-2012B.......36B.I....................................................36B.250C......53D....................................................59E62F.....................................66.......68DB11/891-2012CONTENTS1Generalprovisions.........................................................................I2Termsandsymbols.........................................................................23Buildingenvelopethermaldesign..................................................63.1Generalrules...........................................................................63.2Buildingenvelopethermaldesign............................3.3Buildingenvelopethermalperformancetrade-off..................114Energyefficiencydesignonheating,ventilationsystemandair-conditioning.....................................................................154.1Generalrules.........................................................................154.2Heatsourceandheatingplant................................................184.3Hotwaterdeliverysystemandoutdoorpipenetwork............214.4Indoorheatingsystem............................................................234.5Ventilationandair-conditioningsystem.............................255Energyefficiencydesignofbuildingwatersupplyanddrainage275.1Generalrules...................................275.2Buildingwatersupplyanddrainage.......................................275.3Domestichotwater................................................................286Energyefficiencydesignofelectricity.........................................306.1Generalrules.........................................................................306.2Electricenergymeasurementandmanagement......................306.3Electricalfacilities.................................................................30AppendixACalculationofareaandvolume,decisionoforientation...............................................................32A.1Calculationofareaandvolume........................................32DB11/891-2012A.2Decisionofdecision.......33AppendixBDecisiontablesforresidentialbuildingenergyefficiency....-36B.1Decisiontablesforbuildingenvelopeenergyefficiency.......36B.2Decisiontablesforheating,air-conditioningandventilationsystemenergyefficiency..............................50AppendixCCalculationofmeanheattransfercoefficientforbuildingenvelopeandroof....................................53AppendixDSimplificationonbuildingsolarshadingcoefficient....59AppendixEThermalcharacteristicsforbuildingexterior-window62AppendixFMinimumthicknessandminimumheatresistanceofpipeinsulating...................Wordingrulesofthestandard.................68DB11/891-201211.0.1.0.2231.0.312341.0.4DB11/891-201222.0.1S)shapecoefficientm2/m302.0.2M)windowtowallratioMI)M2)02.0.3solarshadingofbuilding2.0.4activeexternalsolarshadingdevice2.0.5middlesolarshadingdevice2.06K)heattransfercoefficientofbuildingenvelope1KWI(m2K)02.0.7meanheattransfercoefficientofexternalwallandroof2.0.8qH)indexofheatlossofbuildingDB11/891-2012W/m22.0.9E;)modificationforheattransfercoefficient2.0.10)modificationcoefficientoftemperaturedifferenceforbuildingenvelope2.0.11te)meanoutdoortemperatureduringheatingperiod52.0.12EHR)electricityconsumptiontotransferiedheatquantityratiokWkW2.0.13EC(H)RIelectricityconsumptiontotransferiedcooling(heat)quantityratio(kWkW2.0.14heatmeteringdevice2.0.15heatmeter2.0.16heattestingdeviceDB11/891-20122.0.17heatsettlementsite2.0.18heatmeteringinconsumers2.0.19heatallocation2.0.20711)efficiencyofnetwork2.0.21automaticcontroldeviceofheatingload2.0.22primarywaterandsecondarywater2.0.23primarypumpandsecondarypump2.0.24statichydraulicbalancingvalveDB11/891-20122.0.25self-operateflowlimiter2.0.26self-operatedifferentialpressurecontrolvalve2.0.27thermostaticradiatorvalve2.0.28Alzcalculationforgrosscollectorarea0.5DB11!891-201233.13.1.13.1.21233.1.3S3.1.3S3.1.33.3EFVoA.13.1.3S,34-89-13140.520.330