March13,2013DocketNumber:EERE‐2013‐BT‐TP‐0008ResFurnBoilers2013TP0008@ee.doe.govTestProcedureNOPRforResidentialFurnacesandBoilersAshleyArmstrong2WelcomeandIntroduction•Introductions•RoleoftheFacilitator•GroundRules–Listenasanally–Focusonissues–Useshort,succinctstatements/keeptothepoint–Holdsidebarconversationsoutsidetheroom–Onepersonspeaksatatime(raisehandtoberecognized;stateyournamefortherecord)–Setcellphonestosilent/vibrate•HousekeepingItems•AgendaReview•OpeningRemarks3PublicMeetingAgendaDescription of IssueOptions and Proposed Corrective ActionClosing Remarks456Regulatory History2Rulemaking Overview31Introduction4ListeningViatheWebcast•TheU.S.DepartmentofEnergy(DOE)isbroadcastingthismeetingliveovertheinternet.•DOEisprovidingthewebcasttoaccommodatestakeholdersthatareunabletoattendthepublicmeetinginperson.•Thewebbroadcastallowsstakeholderstolistenin,viewtheslides,andsubmitquestionsandcomments.•Allstakeholdersareencouragedtosubmitwrittencommentsafterthepublicmeeting.5PurposeofthePublicMeeting•Presenttheproceduralandanalyticalapproachestoevaluatetestprocedureamendmentsforresidentialfurnacesandboilers.•Invitecommentonthetestprocedurenoticeofproposedrulemaking(NOPR).•Discussnextstepsintherulemaking.•Encourageparticipantstosubmitdata,information,summarystatements,andwrittencomments,includingadditionalissuesfordiscussion.6RequestforCommentIssueboxnumberingcorrespondstothelistofitemspublishedattheendoftheNOPRdocument,availableat:http://www1.eere.energy.gov/buildings/appliance_standards/residential/furnaces_boilers.htmlThedeadlineforsubmittingcommentsisApril22,2013.Item:WhileDOEinvitescommentonallaspectsofthematerialpresentedinthisdocument,severalspecificissuesonwhichDOEseekscommentaresetoutincommentboxeslikethisone.DOEusesthesecommentboxestohighlightissuesandtoaskspecificquestionsontheapproachesDOEplanstouseorhasusedtoconducttheanalysesrequiredforthistestprocedurerulemaking.Suchrequestsforfeedbackarenumberedsequentiallythroughoutthedocument.7PublicMeetingAgendaDescription of IssueOptions and Proposed Corrective ActionClosing Remarks456Regulatory History2Rulemaking Overview31Introduction8RegulatoryHistory•EnergyPolicyandConservationAct(EPCA)of1975(PublicLaw94‐163)–Establishedtheenergyconservationprogramforconsumerproductsotherthanautomobiles,whichincludesresidentialfurnacesandboilers.–DirectsDOEtoestablishtestproceduresinconjunctionwithenergyconservationstandards.•EnergyIndependenceandSecurityActof2007(EISA2007)(PublicLaw110‐140)–DirectedDOEtoincorporatestandbymodeandoffmodeforallfinalrulesprescribingenergyconservationstandardsthatarepublishedafterJuly1,2010.(42U.S.C.6295(gg)(3)(A))–DirectedDOEtodevelopatestproceduretomeasurestandbymodeandoffmodeenergyconsumptionofresidentialfurnacesandboilersnolaterthanSeptember30,2009.(42U.S.C.6295(gg)(2)(B)(iii))9RegulatoryHistory•OnMay12,1997,DOEpublishedafinalruleintheFederalRegisterestablishingthecurrentactivemodetestprocedurewhichincorporatesbyreferencetheAmericanSocietyofHeating,Refrigerating,andAir‐conditioningEngineers(ASHRAE)Standard103‐1993.62FR26140.–OnFebruary24,1998,DOErevisedaprovisionconcerningtheinsulationofthefluecollectorbox.63FR9390.•OnOctober20,2010,DOEpublishedintheFederalRegisterafinalruleestablishingamethodformeasuringtheelectricalenergyuseinstandbymodeandoffmodewhichincorporatesbyreferencetheInternationalElectro‐technicalCommission(IEC)Standard62301(FirstEdition).75FR64621.–OnDecember31,2012,DOEpublishedanotherfinalrulewhichupdatedtheincorporationbyreferencetothelatesteditionofIECStandard62301(SecondEdition).77FR76831.•OnJanuary4,2013,DOEpublishedarequestforinformation(RFI)relatingtotheresidentialfurnaceandboilerannualfuelutilizationefficiency(AFUE)testmethod.78FR675.–Keyissuesincludedavenuesforreducingtestburdenandtheadditionofaperformancetestforautomaticmeansofadjustingwatertemperatureinhotwaterboilers.10PublicMeetingAgendaDescription of IssueOptions and Proposed Corrective ActionClosing Remarks456Regulatory History2Rulemaking Overview31Introduction11StepsintheRulemakingProcess•DOEpublishedtheresidentialfurnaceandboilertestprocedureNOPRonFebruary4,2013.78FR7681.•DOEisholdingtheNOPRpublicmeetingtoday,March13,2013.•DOEwillacceptcommentsontheNOPRfrominterestedparties.−Oralcommentsfromtoday’smeetingwillberecordedandtranscribed.−InterestedpartiescansubmitwrittencommentsuntilApril22,2013.•DOEreviewsandconsidersallcomments.•DOEexpectstoissueafinalrulesummer2013.NOPRFinalRule12PublicMeetingAgendaDescription of IssueOptions and Proposed Corrective ActionClosing Remarks456Regulatory History2Rulemaking Overview31Introduction13TestProcedureandDescriptionoftheIssue•DOE’stestprocedureat10CFRpart430,subpartB,AppendixNreferencesASHRAEStandard103‐1993,“MethodofTestingforAnnualFuelUtilizationEfficiencyofResidentialCentralFurnacesandBoilers.”•Section9.10ofASHRAE103‐1993(andbyextensiontheDOEprocedureatAppendixN)allowsfortheomissionoftheheat‐upandcool‐downtestsforunitscomplyingwiththerequirementsofsection9.10,whichinclude:‐Condensingunitswithnomeasurableairflowthroughthecombustionchamberandheatexchangerduringtheburneroff‐periodwhichhasapostpurgeperiod(s)oflessthan5seconds.•Thetestmethodcurrentlylacksequationstocalculatetheheatingseasonalefficiencyfortwo‐stageandmodulatingcondensingfurnacesandboilerswhenheat‐upandcool‐downtestsareomitted.14DescriptionofAFUEInflation•Formostmodels,AFUEiscalculatedusingacomputerprogramdevelopedbytheNationalInstituteofStandardsandTechnology(NIST)andrefinedbytheAir‐conditioning,HeatingandRefrigeratingInstitute’s(AHRI)predecessor,theGasApplianceManufacturersAssociation(GAMA).•Formodelstestedusingsection9.10,testengineersarelikelytohaveinappropriatelyenteredzerosfortheheat‐upandcool‐downtesttemperatureinputs.‐Sincetheexistingequationsinthetestproceduredonotaccountfortheuseofoption9.10inmodulatingunits,enteringzerosleadtoerroneousAFUEvalues.‐ResearchintothisissuebyAHRIhasshownthatthisapproachoverestimatesAFUEratingsbyapproximately1‐4%.•AlthoughtheproposedtestprocedurechangesmayleadtoarevisedAFUEratingforcertainmodelsratedusingsection9.10,re‐ratingmodelsusingtheequationproposedintheNOPRwouldnotbeexpectedtoresultinanAFUEbelowtheminimumefficiencyrequiredbythestandards.15PublicMeetingAgendaDescription of IssueOptions and Proposed Corrective ActionClosing Remarks456Regulatory History2Rulemaking Overview31Introduction16OptionstoCorrectExistingTestProcedure•DOEhasconsideredtwooptionstocorrectthisissuefortwo‐stageormodulating,condensingfurnacesandboilers,including:1.Suspendingtheuseoftheoptioninsection9.10andrequiringtheheat‐upandcool‐downtestbeperformedontwo‐stageandmodulatingcondensingunits.–DOEhasdecidednottopursuethisapproach,asitwouldincreasethetestburdenonmanufacturers,industry,andtestlaboratories.2.Developadditionalequationstocorrecttheexistingtestprocedure.–ThisisDOE’sproposedaction.Theproposedrevisiontothetestprocedurewouldrectifytheerrorbyadoptingadditionalequationsforthecalculationofthepart‐loadefficienciesatthemaximumandreducedinputratesforunitseligibletoutilizesection9.10.17ProposedCorrection:ConceptIftheoptioninsection9.10ofASHRAE103‐1993isnotemployed:ݕ݂݂ܧுௌܮ െ 100 ൌ஺,௅ܮ ൅ீܮ െ஼ܥ െ௃ܮ௃െݐைேݐைே൅ܳ௉ܳூேݐைிிሺܮௌ,ைே൅ ܮௌ,ைிி൅ ܮூ,ைே൅ ܮூ,ைிிሻݕ݂݂ܧுௌܮ െ 100 ൌ஺,௅ܮ ൅ீܮ െ஼ܥ െ௃ܮ௃െݐைேݐைே൅ܳ௉ܳூேݐைிிሺܥௌሻሺܮௌ,ௌௌሻIftheoptioninsection9.10ofASHRAE103‐1993isemployed:Theconceptofreplacingcyclicinfiltrationandsensibleheatlosseswithsteady‐stateinfiltrationandsensibleheatlossesexistsinthetestprocedureintheequationsforsingle‐stagemodels.Italsoappliesfortwo‐stageandmodulatingfurnacesandcondensingfurnacesandboilers.18ProposedCorrection:Equationsݕ݂݂ܧு,௎ܮ െ 100 ൌ஺,௅ܮ ൅ீܮ െ஼ܥ െ௃ܮ௃െݐைேݐைே൅ܳ௉ܳூேݐைிிሺܥௌሻሺܮௌ,ௌௌሻIftheoptioninsection9.10ofASHRAE103‐1993isemployed:11.5.11.1Part‐LoadEfficiencyatReducedFuelInputRateItem1:DOEseekscommentontheproposedequationsfordeterminingtheheatingseasonalefficiency(whichcontributestotheultimatecalculationofAFUE)oftwo‐stageandmodulatingcondensingfurnacesandboilersthataretestedunderoption9.10ofASHRAE103‐1993.ݕ݂݂ܧோ,௎ܮ െ 100 ൌ஺,௅ܮ ൅ீܮ െ஼ܥ െ௃ܮ௃െݐைேݐைே൅ܳ௉ܳூேݐைிிሺܥௌሻሺܮௌ,ௌௌሻ11.5.11.2Part‐LoadEfficiencyatMaximumFuelInputRate19RegulatoryReview•DOEhasconcludedthattheproposedrulewouldnothaveasignificantimpactonasubstantialnumberofsmallentities.‐TheproposedequationswouldlessenthemanufacturerburdenincomparisontothecurrentTP,whichdoesnotprovidetheneededequationstousesection9.10.Item2:DOEseekscommentontheconclusionthatthecostsofcomplyingwiththeproposedtestprocedurechangesaresmallrelativetotheoverallcostofmanufacturing,testing,andcertifyingresidentialfurnaceandboilerproducts,alongwithanyadditionalinformationregardingaverageannualrevenuesformanufacturersoftheseproducts.Approach toRe‐Rate CostPerform heat‐upandcool‐downtest~$120 perbasicmodelManuallycalculateusingnewequations~$30‐60 perbasicmodelReprogram software~$1280‐3200one timecost20PublicMeetingAgendaDescription of IssueOptions and Proposed Corrective ActionClosing Remarks456Regulatory History2Rulemaking Overview31Introduction21HowtoSubmitWrittenComments•Inallcorrespondence,pleaserefertotheresidentialfurnaceandboilerrulemakingby:ResidentialFurnaceandBoilerTestProcedureRulemakingDocketNumberEERE‐2013‐BT‐TP‐0008RegulatoryIdentificationNumber(RIN)1904‐AC96•Email: ResFurnBoilers2013TP0008@ee.doe.govPostal:Courier:Ms.BrendaEdwardsU.S.DepartmentofEnergyBuildingTechnologiesProgram,MailstopEE‐2J1000IndependenceAvenue,SWWashington,DC20585‐0121Ms.BrendaEdwardsU.S.DepartmentofEnergyBuildingTechnologiesProgram,Suite600950L’EnfantPlaza,SWWashington,DC20024Tel:202586‐2945Comment period closes:April 22, 2013, 11:59 PM EDT22ResultsofTestingforBoilerModels“A”and“B”ValueDescriptionModelA ModelBScenario1:Heat‐up/cool‐downtestsScenario2:Employ9.10usingnewcalculationsScenario1:Heat‐up/cool‐downtestsScenario2:Employ9.10usingnewcalculationsܦிDraftFactor .05 .05 .05 .05ܥௌCorrectionfactorthatcorrectsfortheuseofoutsideairforcombustion1.446 1.446 1.541 1.541ܮௌ,ைேOn‐cyclesensibleheatloss 1.956 N/A 1.766 N/Aܮ஺௅AverageLatentHeatLossoftestfuelused 9.55 9.55 9.55 9.55ܮௌ,ௌௌAverageSensibleHeatLossatSteady‐StateOperation1.393 1.393 1.149 1.149ܮ஼Part‐LoadHeatLossDuetoCondensateGoingDowntheDrain.014.014.0577.0577ܮீLatentHeatGainUnderPart‐LoadConditions.6665 .6665 3.64 3.64ܮூ,ைேOff‐cycleinfiltrationloss 0 N/A 0 N/Aܮூ,ைிிOn‐cycleinfiltrationloss 0 N/A 0 N/Aܮௌ,ைிிOff‐cyclesensibleheatloss,forsystem9or10.0199 N/A .0487 N/Aܧ݂݂ݕௌௌ,ோSteady‐stateefficiencyatreducedfiringrate 89.63 89.63 91.97 91.97ܧ݂݂ݕ௎,ோPart‐loadefficiencyreducedfiringrate 89.13 89.09 92.22 92.26ܧ݂݂ݕ௎,ெAveragepart‐loadefficiencyatmodulatingfiringrate89.65 89.65 91.67 91.67ܧ݂݂ݕு,ௌHeatingSeasonalEfficiency 89.48 89.45 92.02 92.06AFUEAnnualFuelUtilizationEfficiency 89.48 89.45 92.02 92.06