Outreach Innovation Building · 2005-04-18 · Spring 2005 Existing Conditions Mechanical Design...

Outreach Innovation Outreach Innovation BuildingBuilding

Kyle PeppermanKyle PeppermanThe Pennsylvania State UniversityThe Pennsylvania State University

Architectural Engineering Senior ThesisArchitectural Engineering Senior ThesisSpring 2005Spring 2005

Kyle Pepperman Mechanical Option 2

Outreach Innovation Building Spring 2005

Presentation OutlinePresentation Outline

Project BackgroundProject BackgroundProject TeamProject TeamExisting ConditionsExisting ConditionsRedesign GoalsRedesign GoalsMechanical RedesignMechanical RedesignElectrical AnalysisElectrical AnalysisFire Protection AnalysisFire Protection AnalysisConclusionsConclusionsAcknowledgementsAcknowledgementsQuestionsQuestions

South-East View



Project BackgroundProject Background

97,000 gross square feet97,000 gross square feet$27 Million total project cost$27 Million total project costHome to Penn State Public Broadcasting and Home to Penn State Public Broadcasting and World Campus (WPSXWorld Campus (WPSX--TV and WPSUTV and WPSU--FM)FM)Building Features 1 main and several smaller Building Features 1 main and several smaller television production studios, radio facilities, television production studios, radio facilities, World Campus resource library, and offices.World Campus resource library, and offices.



Project TeamProject Team

OwnerOwner Penn State Research Park Developers Inc.Penn State Research Park Developers Inc.ArchitectArchitect GBQC Architects, PCGBQC Architects, PCConstruction ManagerConstruction Manager Poole Anderson Construction LLC.Poole Anderson Construction LLC.Studio Design ConsultantStudio Design Consultant The Lawrence Group ArchitectsThe Lawrence Group ArchitectsStruct., MEP, Fire Prot. EngStruct., MEP, Fire Prot. Eng Associated Engineering ConsultantsAssociated Engineering ConsultantsAcoustic ConsultantAcoustic Consultant Shen Milsom & Wilke, Inc.Shen Milsom & Wilke, Inc.Telecomm. Design Consult.Telecomm. Design Consult. PSU Office of TelecommunicationsPSU Office of TelecommunicationsAudiovisual Equip. Consult.Audiovisual Equip. Consult. PSU Office of Media TechnologyPSU Office of Media TechnologyCivil EngineerCivil Engineer GannettGannett--Fleming, Inc.Fleming, Inc.



Existing ConditionsExisting Conditions

Building EnvelopeBuilding Envelope33--storystoryBrick FaBrick Faççade and aluminum panels to match ade and aluminum panels to match surrounding buildingssurrounding buildingsLarge curtain windows on east and south side of Large curtain windows on east and south side of buildingbuilding

South-East View




Lighting/ElectricalLighting/ElectricalRadial System with 15kV service cable into a Radial System with 15kV service cable into a 12.47kV12.47kV--480Y/277V transformer480Y/277V transformer2400A, 32400A, 3--phase, 4phase, 4--wire main switchboardwire main switchboard100kVA emergency generator100kVA emergency generatorUPS for loads that require uninterruptible powerUPS for loads that require uninterruptible power

Fire ProtectionFire ProtectionWetWet--pipe automatic systempipe automatic systemDryDry--pipe system within server and video archive areapipe system within server and video archive area




MechanicalMechanicalDesign ConditionsDesign Conditions

Summer 89F DB, 72F WB Summer 89F DB, 72F WB Winter 5FDBWinter 5FDB

66--Air Handling UnitsAir Handling UnitsCooling coils range from 24.2 to 81.2 tonsCooling coils range from 24.2 to 81.2 tons10,000 to 35,000 10,000 to 35,000 cfmcfm

Perimeter 2Perimeter 2--Pipe Fan Coil UnitsPipe Fan Coil Units22--175 ton rooftop chillers and 1175 ton rooftop chillers and 1--54 ton chiller54 ton chillerUFAD and Ducted SystemsUFAD and Ducted Systems



Redesign GoalsRedesign Goals

Reduce Energy UseReduce Energy UseSave moneySave money

Proper Indoor Air QualityProper Indoor Air Quality

South View



Mechanical RedesignMechanical Redesign

Dedicated Outdoor Air Dedicated Outdoor Air SystemSystem OverviewOverviewIndependent unit to supply minimum OA for Independent unit to supply minimum OA for ventilationventilationParallel system to meet remaining loadParallel system to meet remaining load

DOAS BenefitsDOAS BenefitsExact ventilationExact ventilationReduced OA loadsReduced OA loadsLower Operating CostLower Operating Cost

South-West View




New Mechanical SystemNew Mechanical SystemSingle chilled water AHU for ventilationSingle chilled water AHU for ventilation

11,500 11,500 cfmcfm 77 tons cooling77 tons cooling

22--Pipe Fan Coil Units as parallel systemPipe Fan Coil Units as parallel systemSome equipped with electrical heat for transition between Some equipped with electrical heat for transition between seasonsseasons

Original AHU that supplies Server room to remainOriginal AHU that supplies Server room to remain




Enthalpy Wheel with DOASEnthalpy Wheel with DOASReduced cooling coil loadReduced cooling coil load

Scroll ChillerScroll ChillerOriginal = 435 tons and 640 Original = 435 tons and 640 gpmgpmRedesign = 240 tons and 460 Redesign = 240 tons and 460 gpmgpm

Reduction of 200 tons or 45%Reduction of 200 tons or 45%

22--Air Cooled Chillers were selected to replace 2 Air Cooled Chillers were selected to replace 2 larger existing air cooled chillerslarger existing air cooled chillersExisting smaller chiller to remainExisting smaller chiller to remain

Used for Data Center AHUUsed for Data Center AHU




Pumps and PipingPumps and Piping

2 @ 460 gpm2 @ 640 gpmSecondary CHW

2 @ 190 gpm2 @ 280 gpmPrimary CHW

RedesignOriginal

West View




Underfloor Air Distribution SystemUnderfloor Air Distribution SystemAdvantagesAdvantages

FlexibleFlexibleLarge amount of data cablesLarge amount of data cables

DisadvantagesDisadvantagesPossible leakagePossible leakageRequires a large volume of airRequires a large volume of airSupply air temperatureSupply air temperature




Underfloor Air Distribution System with DOASUnderfloor Air Distribution System with DOASVVOAOA*T*TOAOA + V+ VFCFC*T*TFCFC = V= VTOTTOT*(65F)*(65F)(168)*(50F) + V(168)*(50F) + VFCFC*(70F) = (5194)*(65F)*(70F) = (5194)*(65F)VVFCFC = 4706 = 4706 cfmcfm




EmissionsEmissionsPercent ReductionPercent Reduction

NOxNOx = 29%= 29%SOxSOx, CO2, and Particulates = 16%, CO2, and Particulates = 16%

Energy ChargeEnergy ChargeElectricity = $0.02383 / KWhElectricity = $0.02383 / KWhNatural Gas = $0.5 / Natural Gas = $0.5 / thermtherm

Energy Cost SavingsEnergy Cost SavingsSavings of 692,632 KWh/Year = 16% reductionSavings of 692,632 KWh/Year = 16% reduction$43,623 per year$43,623 per year




Cost AnalysisCost AnalysisNew Equipment Cost = $448,850New Equipment Cost = $448,850Original Equipment Cost = $388,650Original Equipment Cost = $388,650Cost Difference for Redesign = Cost Difference for Redesign = $60,200$60,200

Simple Payback Period = Simple Payback Period = 1 year 5 months1 year 5 months

Lost Rentable SpaceLost Rentable SpaceOriginal Design = 7417 Original Design = 7417 sq.ftsq.ft. = 8.7%. = 8.7%Redesign = 4840 Redesign = 4840 sq.ftsq.ft. = 5%. = 5%



Electrical AnalysisElectrical Analysis

Analyzed effects of Mechanical RedesignAnalyzed effects of Mechanical RedesignCircuit Breaker SizeCircuit Breaker SizeConductor SizeConductor SizeConduit SizeConduit Size

New Primary Chilled Water Pump (Quantity 2)(2 HP, 480V, 3-Phase, P.F. = 0.90)

NEC Table: 430-150 => FLC=2.7 AKVA= 1.73 * 2.7 A * 480V * 0.9 = 2.017 KVACircuit Breaker Size: 2.7 A * 250% = 6.75 A => 20 A, 3 P Breaker Conductor Size: 2.7 A * 125% = 3.375 ANEC Table 310.16 => #12 THW (Cu) Conduit Size: NEC Table C1 => 1/2”




20.17120.1710027348020New AHU

50.8225.411034348025

115257.525077348060Old AHU 3A&B21210.54014348010

50.8225.411034348025Old AHU 2A&B31.39215.6957021348015Old P-4A&B11.3625.68257.634805Old P-2&3390.122195.068002613480217 kWOld Chiller

83.39312.69403.634803 kWFan Coils0.82210.822151.134801/4Enthalpy Wheel

26.86213.436017.97348014.92 kWNew P-24.03422.017202.734802New P-118.828121.569302.1348012New Chiller

Total kVAQuantitykVAAFLCPhaseVoltageHpUnitPanel Comparison Schedule




PanelboardPanelboard ComparisonComparisonOriginal = 1000AOriginal = 1000ARedesign = 300ARedesign = 300A

New EquipmentTotal kVA = Sum kVA + 25% * kVAmax = 175Min Ampacity = Total kVA / (0.48kV * 1.73) = 210.75Max Ampacity = (Sum kVA + 75% * kVAmax) / (0.48 kV * 1.73) = 260.86Panel Ampacity = 300 A

North-West View



Fire Protection AnalysisFire Protection Analysis

Analyzed use of Clean Agent FP SystemAnalyzed use of Clean Agent FP SystemHFCHFC--227ea chosen as agent227ea chosen as agent

Suitable for use in normally occupied spacesSuitable for use in normally occupied spaces

Design ConcentrationDesign Concentration88--10.8%10.8%

Agent Hold Time > 10 minutesAgent Hold Time > 10 minutes



Fire Protection AnalysisFire Protection Analysis

Tank SizeTank Size88.7 lbs. 88.7 lbs. –– 1600cu.ft.1600cu.ft.500 lbs. 500 lbs. –– 9000cu.ft.9000cu.ft.665 lbs 665 lbs –– 12000cu.ft.12000cu.ft.

Floor mounted TanksFloor mounted Tanks11”” PipingPiping



ConclusionsConclusions

DOAS with Fan Coils provide proper ventilation with DOAS with Fan Coils provide proper ventilation with reduced energy consumptionreduced energy consumption

Yearly energy reduction of 16%Yearly energy reduction of 16%Cost savings of $43,623 per yearCost savings of $43,623 per year1 year 5 month payback period1 year 5 month payback period

ElectricalElectricalRedesign of mechanical equipment reduced mechanical Redesign of mechanical equipment reduced mechanical demanddemand

Fire ProtectionFire ProtectionClean Agent System using HFCClean Agent System using HFC--227ea should be used to 227ea should be used to protect valuable information and equipmentprotect valuable information and equipment



AcknowledgementsAcknowledgements

JaeJae--WeonWeon JeongJeongJeff Jeff KokoskiKokoskiJoel Joel HaightHaightAdam Adam WarrinerWarrinerFellow ClassmatesFellow Classmates

Luke Luke KlockKlockRyan Ryan WankoWanko and Ryan Buffand Ryan Buff



QuestionsQuestions

Outreach Innovation Building · 2005-04-18 · Spring 2005 Existing Conditions Mechanical Design...

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