When should I use EnergyPlus instead of eQuest and vice ...

More to the point of the question, there is a simulation capability gap between DOE-2 and EnergyPlus. EnergyPlus does a more realistic job ... Firsttimehere?CheckouttheHelppage!Question-and-AnswerResourcefortheBuildingEnergyModelingCommunityGetstartedwiththeHelppageHithere!PleasesigninhelptagsusersbadgesALLUNANSWERED AskYourQuestion 5WhenshouldIuseEnergyPlusinsteadofeQuestandvice-versa?editenergyplusequestdoe-2.2 asked2014-09-1110:29:42-0500RyanStochastic245●1●7 updated2015-11-2308:50:58-0500__AmirRoth__4398●5●17 http://bleedinggreenna... IknowthatEnergyPlusmodelssomethingsinmoredetailthaneQuest,andthateQuestrunsmuchfasterthanEnergyPlus.Whatarethebestapplicationsforeachplatform?WhyuseEnergyPlusifIcangetamuchfasterresultwitheQuest?editretagflagoffensiveclosemergedeleteaddacomment2Answers Sortby» oldestnewestmostvoted7 answered2014-09-1711:47:14-0500__AmirRoth__4398●5●17 http://bleedinggreenna... ThereisaseparatethreadthataddressesthedifferencesinsimulationspeedbetweenDOE-2andEnergyPlus.Someofthatinformation--includingthespeeddifferenceitself--isrelevanthere.Ifyouneedresultsveryquickly,youshouldprobablyuseDOE-2!Moretothepointofthequestion,thereisasimulationcapabilitygapbetweenDOE-2andEnergyPlus.EnergyPlusdoesamorerealisticjobmodelingradianteffects,andunmetloads,andnovelsystems,andcontrols,andsomeotherthingstoo.IftheseeffectsareimportantinyourdesignthenyouprobablywanttouseEnergyPlusorsomethingsimilarlycapable.Iftheyarenotimportant,thenitdoesn'tmatterwhichyouuseandyoushouldprobablyusetheoneyouaremorefamiliarandproductivewith.OrDOE-2ifsimulationspeedisveryimportanttoyou.Howdoyouknowwhether"EnergyPluscapabilities"areimportantinyourdesign?Thatistherub.IbelieveCaliforniaisdevelopingsomedesign-featurespecificguidanceontooluse(e.g.,ifyouaremodelingnaturalventilationpleaseuseengineAorB,otherwiseuseA,B,CorD)althoughIdon'thaveareferenceforthat(Iwilltrytofinditandthenedittheresponse).TheASHRAE140testscanbeusedinasimilarfashionalthoughtheyarenotveryaccessibleforthispurpose.Wecertainlyneedtodevelopbetterguidanceinthisarea.editflagoffensivedelete link more Comments1re:'someotherthingstoo'.and'therub'...IfsomeonecanprovideamorecomprehensivelistofthingsthatmakethedifferencebetweenEnergyPlusandEquest,I'llnominatethatastheanswer.Theanswersthusfardoprovidegoodinsightintothequestion,andtheyaremuchappreciated.I'mhopingtogettoamoredefinite/complete/finallistofreasonsorareaswhereoneengineoutperformstheother.I.e.fornovelsystems,mustuseenergyplus,forabasicbuilding,equestwilldofine. RyanStochastic  ( 2014-09-1916:48:47-0500 )edit@RyanStochastic.Ifyouarelookingforacitablepeer-reviewedcomparison,thereis"ConstrastingtheCapabilities"byCrawleyetal.(http://sbi.dk/download/bsim/contrastingthecapabilitiesofbuildingenergyperformancesimulationprograms_v1.0.pdf).Thatworkisnearlytenyearsoldandrevisiting/refreshingitisagoodidea.Eitherway,itdoesn'tdirectlyaddressaccuracyofmodelingfeatures,onlytheirpresence.DOEiscurrentlyrampingupeffortstoaddmeasureddatateststoASHRAE140toanswersomeoftheaccuracyquestions,butthosewilltaketime. __AmirRoth__  ( 2014-09-2016:00:24-0500 )edit1@RyanStochastic.ContinuinginaseparatecommenttocircumventtheTwitter-esquecharacterlimit.Thebestcomparativeassessmentofbothcoverageandaccuracyyoumaybeabletogetrightnowisacrowd-sourcedexperiential/anecdotaldiscussiononspecifictopics.Fortunately,you'reontherightplatformforthat! __AmirRoth__  ( 2014-09-2016:05:17-0500 )editaddacomment3 answered2014-09-1220:57:10-0500Krishnan151●5OneofthereasonsquotedduringtherecentEnergyModelingConferencewasthatVRFsystemscouldnotbesimulatedusingeQuest.Thereareanumberofotherhighperformancebuildingmodelingfeatures(toomanytolisthere)availableinEnergyPlus.AnothercommentIhearoftenisthatthereislimitedtechnicalsupportandon-goingdevelopment/maintenance.editflagoffensivedelete link more CommentsI'veheardthatthedevelopersforeQUESThavebeenworkingonVRFforover3years,andthatitshouldshowupinthenextreleaseofDOE-2.3,whichisnowoutinBETA.I'vealsoheardthatthere'smoredevelopmentcurrentlygoingonwitheQUESTthanatanyprevioustime.Itistruethatthedevelopersdonotprovidetechnicalsupport,sinceit'sfreeware,butthereistheeQUEST-usersbulletinboardwhereuserscanhelpeachother.IhaveoftennoticedthatpeoplemakedisparagingcommentsoneQUEST/DOE-2withlimitedorpartialknowledge. JoeHuang  ( 2014-09-1322:38:55-0500 )edit3PeoplealsomakedisparagingcommentsaboutEnergyPluswithlimitedorpartialknowledge. __AmirRoth__  ( 2014-09-1711:34:31-0500 )edit@Krishnan,re:"(toomanytolisthere)"-thatsortoflist,alistofthecan'scan'ts,andpro'scon'softhetwoplatformswouldmakeagreatanswertothisquestion. RyanStochastic  ( 2014-09-1916:41:08-0500 )editDoeQuestandEnergyPlusleap-frogeachotherwitheachupdatesoacomparisonofspecificcapabilitiesisnotuniversaltoalltheversions?Dobothprogramsintendtocoverthesamemarket? dmcgee5  ( 2016-10-0313:38:45-0500 )editaddacomment YourAnswer Pleasestartpostinganonymously-yourentrywillbepublishedafteryouloginorcreateanewaccount. AddAnswerTrainingWorkshopsQuestionTools Follow 1follower subscribetorssfeedStats Asked:2014-09-1110:29:42-0500 Seen:5,572times Lastupdated:Sep17'14RelatedquestionsWindow:Material:ShadeParametersPredictedloadsvs.timestepNegativeloadvaluesthermalcomfortthermostatExcessivesolargainsSimulateequipmentinisolationEquest3.65RefrigerationwillnotstartPMV-PPDMistakeinEnergyplusoutlet_branch_namemissingnodetemperatureinAHUUnitAbout|Help|Privacy|Legal|Contact Sitedesignandlogo:Copyright©2015BigLadderSoftwareLLC.Allrightsreserved. TheUnmetHoursandBigLaddernamesandlogosaretrademarksofBigLadderSoftwareLLC. UsercontributionslicensedundertheCreativeCommonsAttributionShareAlike3.0License. Poweredby ( 2022-05-2915:39:20-0500 )editnone×