geisinger hospital for advanced m edicine
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Geisinger Hospital for Advanced M edicine. Jen Redington Mechanical Option AE Senior Thesis Spring 2009. Presentation Outline. Building Overview Existing Mechanical Systems Mechanical Depth Dedicated Outdoor Air Systems and Chilled Beams Combined Heat and Power Electrical Breadth - PowerPoint PPT PresentationTRANSCRIPT
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Geisinger Hospital for Advanced MedicineJen RedingtonMechanical OptionAE Senior ThesisSpring 2009Presentation OutlineBuilding OverviewExisting Mechanical SystemsMechanical DepthDedicated Outdoor Air Systems and Chilled BeamsCombined Heat and PowerElectrical BreadthArchitectural BreadthConclusions
Jen Redington Mechanical OptionGeisinger Hospital for Advance MedicineSenior Thesis Presentation
2Building OverviewGeisinger Hospital for Advanced Medicine
Location: Danville, PA
Size: 300,600 SF, 9 stories
Total Project Cost: $108 million
Construction Dates : June 2007-Spring 2010
Jen Redington Mechanical OptionGeisinger Hospital for Advance MedicineSenior Thesis Presentation
Building OverviewBuilding UseCardiologySurgeryPatient RoomsClinicsDiagnosticsStaff AreasFood ServiceShell Spaces
Jen Redington Mechanical OptionSenior Thesis Presentation
Geisinger Hospital for Advance MedicineExisting Mechanical SystemsChiller PlantNew chiller plant being constructed housing:Two existing 900-ton chillers to a new chiller plantOne existing free-cooling plate and frame heat exchanger One new 900-ton chillerOne new 8,000 ton-hour, thermal energy storage tank
Jen Redington Mechanical OptionGeisinger Hospital for Advance MedicineSenior Thesis Presentation
Existing Mechanical SystemsBoiler PlantBoiler plant addition being constructed housing:Two new steam boilers, one electric and one gasTwo new 8,900 MBH shell and tube heat exchangers for heating water
Jen Redington Mechanical OptionGeisinger Hospital for Advance MedicineSenior Thesis Presentation
Existing Mechanical SystemsAir handling unitsFive air handling units to be installed nowThree air handling units for the futureJen Redington Mechanical OptionGeisinger Hospital for Advance MedicineSenior Thesis Presentation
Mechanical DepthDedicated Outdoor Air System and Chilled BeamsReplace VAV boxes with a dedicated outdoor air system and chilled beamsGoalsReduce Energy Use and CostImprove Ventilation and Indoor Air QualityReduce Mechanical Space
Jen Redington Mechanical OptionGeisinger Hospital for Advance MedicineSenior Thesis Presentation
Mechanical DepthDedicated Outdoor Air System and Chilled BeamsAdvantagesSeparation of sensible and latent loadsImproved indoor air quality (IAQ)Reduced reheating of airIncreased comfort level due to chilled beamsEnsures ventilation requirements are meetJen Redington Mechanical OptionGeisinger Hospital for Advance MedicineSenior Thesis Presentation
Mechanical DepthSystem DesignOutdoor Design ConditionsSummer Conditions (0.4%)90.1F DB 72.9F WB Winds: W 9.8 mphWinter Conditions (99.6%)3F DB Winds: WNW 7 mph
Jen Redington Mechanical OptionGeisinger Hospital for Advance MedicineSenior Thesis Presentation
Mechanical DepthSystem Design Indoor Design ConditionsOperating RoomsRoom temperature: 60F to 70F (adjustable by room)50%-55% RH at 60F35%-40% RH at 70FPatient Rooms Room temperature: 70F to 75F (adjustable by room)30% RH min (winter)60% RH max (summer)Exam/TreatmentRoom temperature: 75F30% RH min (winter)50% RH max (summer)Other spaces:Summer: 75F, 50% RH maximumWinter: 70F, 30% RH minimum
Jen Redington Mechanical OptionSenior Thesis Presentation
Geisinger Hospital for Advance MedicineMechanical DepthSystem DesignReplaced AHU-S-1, AHU-S-2, and AHU-N-2 with dedicated outdoor air systemsSurgical pharmacy air handling unit eliminated, spaces controlled by south air handling unitsJen Redington Mechanical OptionSenior Thesis Presentation
Geisinger Hospital for Advance MedicineMechanical DepthSystem DesignVentilation rates determined by ASHRAE 62.1-2007 and AIA Guidelines for Design and Construction of Hospitals and Health Care Facilities, 2001
Jen Redington Mechanical OptionSenior Thesis Presentation
Geisinger Hospital for Advance Medicine
Mechanical DepthSystem designDetermining supply air temperatureBased on temperature needed for latent loads and to control humidityJen Redington Mechanical OptionSenior Thesis Presentation
Geisinger Hospital for Advance Medicine
Mechanical DepthSystem DesignHigh Induction DiffusersImprove mixing in roomNecessary due to low supply air temperaturesAllow rooms to meet air change rates
Jen Redington Mechanical OptionSenior Thesis Presentation
Geisinger Hospital for Advance Medicine
Mechanical DepthSystem Design Air Handling UnitsTrane M-Series Size 21Airflow range 7350 - 12600Jen Redington Mechanical OptionSenior Thesis Presentation
Geisinger Hospital for Advance MedicineMechanical DepthSystem DesignEnthalpy WheelIncreased energy efficiencyT3 shows temperatures after passing through the enthalpy wheelJen Redington Mechanical OptionSenior Thesis Presentation
Geisinger Hospital for Advance Medicine
Mechanical DepthSystem DesignChilled BeamsIncrease thermal comfortRadiation effectsDecreased air motion in the spaceDecreased fan powerJen Redington Mechanical OptionSenior Thesis Presentation
Geisinger Hospital for Advance Medicine
Mechanical DepthResultsAir SavingsJen Redington Mechanical OptionGeisinger Hospital for Advance MedicineSenior Thesis Presentation
Mechanical DepthResultsDecreased Mechanical SpaceFourth floor mechanical roomRemoval of AHU-4-3Mechanical PenthouseOriginal AHUs 154 x 224New DOAS AHUs 52 x 77Decreased mechanical shaft sizeOriginal supply ducts from air handling units 108 x 138New supply ducts from air handling units 42 x 44
Jen Redington Mechanical OptionGeisinger Hospital for Advance MedicineSenior Thesis Presentation
Mechanical DepthResultsImproved Indoor Air QualityDecreased recirculation of contaminantsIncreased mixing due to high induction diffusers
Jen Redington Mechanical OptionGeisinger Hospital for Advance MedicineSenior Thesis Presentation
Mechanical DepthResultsEnergy Use SavingsJen Redington Mechanical OptionSenior Thesis Presentation
Geisinger Hospital for Advance Medicine
Mechanical DepthResultsEnergy Cost SavingsJen Redington Mechanical OptionSenior Thesis Presentation
Geisinger Hospital for Advance Medicine
Mechanical DepthCombined Heat and Power (CHP)Install combined heat and power plant on siteGoalsLower Energy UseLower EmissionsLower Energy CostJen Redington Mechanical OptionGeisinger Hospital for Advance MedicineSenior Thesis Presentation
Mechanical DepthCombined Heat and PowerFeasibilitySparks Gap > $12/MMBTUGeisinger Hospital for Advanced MedicineSparks Gap = $5/MMBTUMuch lower than recommended for energy cost savingsJen Redington Mechanical OptionGeisinger Hospital for Advance MedicineSenior Thesis Presentation
Mechanical DepthCombined Heat and PowerFeasibilityCampus DesignGeisinger CampusJen Redington Mechanical OptionGeisinger Hospital for Advance MedicineSenior Thesis Presentation
Mechanical DepthCombined Heat and Power FeasibilityExisting on site equipmentGeisingerMany of the chillers and boilers are existingNecessary hot water significantly decreased by DOASFor optimal use chiller plant would have to be converted to absorption chiller plant
Jen Redington Mechanical OptionGeisinger Hospital for Advance MedicineSenior Thesis Presentation
Electrical BreadthDedicated Outdoor AirDecreases amount of power needed AHU motor size changeDecreases breaker sizes
Jen Redington Mechanical OptionGeisinger Hospital for Advance MedicineSenior Thesis Presentation
Electrical BreadthDedicated Outdoor Air SystemAHU motor size changesJen Redington Mechanical OptionGeisinger Hospital for Advance MedicineSenior Thesis Presentation
Electrical BreadthDedicated Outdoor Air SystemAHU breaker size changesJen Redington Mechanical OptionGeisinger Hospital for Advance MedicineSenior Thesis Presentation
Electrical BreadthCombined Heat and PowerPower lines to hospital would have to be redesignedDue to the distance from the boiler house this would add a significant amount of costBack-up power would also have to be availableJen Redington Mechanical OptionSenior Thesis Presentation
Geisinger Hospital for Advance MedicineArchitectural BreadthDedicated Outdoor Air SystemSlight increase of space on fourth floorDecreased size of mechanical penthousesJen Redington Mechanical OptionGeisinger Hospital for Advance MedicineSenior Thesis Presentation
Architectural BreadthDedicated Outdoor Air SystemJen Redington Mechanical OptionSenior Thesis Presentation
Geisinger Hospital for Advance Medicine
Architectural BreadthDedicated Outdoor Air SystemJen Redington Mechanical OptionSenior Thesis Presentation
Geisinger Hospital for Advance Medicine
Architectural BreadthCombined Heat and PowerBoiler house addition would need to be increased to provide space for gas turbinesJen Redington Mechanical OptionGeisinger Hospital for Advance MedicineSenior Thesis Presentation
ConclusionsDedicated Outdoor Air SystemShould be implementedEnergy SavingsIncreased Air QualityIncreased Thermal ComfortCombined Heat and PowerShould not be implementedCost savings would not be significantDifficult to integrate into existing systems Jen Redington Mechanical OptionGeisinger Hospital for Advance MedicineSenior Thesis Presentation
Questions?Jen Redington Mechanical OptionGeisinger Hospital for Advance MedicineSenior Thesis Presentation