Leah Matern Lighting/Electrical Option Faculty Advisors: Dr. Richard Mistrick and Ted Dannerth April 13, 2011 Crystal Lake Elementary School Lake Mary, Florida

Introduction Lighting Depth Covered Entrance Primary Classroom Electrical Depth Emergency System Redesign Photovoltaic Array Structural Breadth Conclusion Building Overview Building Name Crystal Lake Elementary School Location Lake Mary, FL Occupant Student grades K-5, Teachers, Administrators 780 Student Stations Used as community Hurricane Shelter Size 113,927 S.F Levels Two Floors Acres Eleven Acres

Introduction Lighting Depth Covered Entrance Primary Classroom Electrical Depth Emergency System Redesign Photovoltaic Array Structural Breadth Conclusion Scope of Redesign Lighting Design Covered Entrance and Covered Walkways Lobby Multipurpose Room Primary Classroom Electrical Design Branch Circuit Redesign for Lighting Spaces Short Circuit Analysis Emergency System Redesign Photovoltaic Array Design Structural Analysis Roof Analysis of Addition of Photovoltaic System Acoustical Analysis Reverberation Time Study

Introduction Lighting Depth Covered Entrance Primary Classroom Electrical Depth Emergency System Redesign Photovoltaic Array Structural Breadth Conclusion Scope of Redesign – Presented Today Lighting Design Covered Entrance and Covered Walkways Lobby Multipurpose Room Primary Classroom Electrical Design Branch Circuit Redesign for Lighting Spaces Emergency System Redesign Photovoltaic Design Short Circuit Analysis Structural Analysis Roof Analysis of Addition of Photovoltaic System Acoustical Analysis Reverberation Time Study

Introduction Lighting Depth Covered Entrance Primary Classroom Electrical Depth Emergency System Redesign Photovoltaic Array Structural Breadth Conclusion General Design Concepts Focuses on Energy Efficiency Promotes Smooth Transition throughout Spaces and Building Promotes Productivity in the Workspaces Creates a Welcoming and Public Environment

Introduction Lighting Depth Covered Entrance Primary Classroom Electrical Depth Emergency System Redesign Photovoltaic Array Structural Breadth Conclusion Design Concepts Create a Welcoming Environment Direct Circulation towards Entrance of Building Enhances the Building Façade Provide Security for the Building at Night Brick Façade Architectural Columns Covered walkways Important Design Features

Introduction Lighting Depth Covered Entrance Primary Classroom Electrical Depth Emergency System Redesign Photovoltaic Array Structural Breadth Conclusion Covered Entrance Criteria Horizontal Illuminance:5 fc Power Allowance:1.2 W/ft 2 :30W/linear ft Door Width Materials Ceiling:Exterior Drywall Column:White Painted Concrete :Brick Veneer Floor:Reinforced Concrete Slab Façade:Brick Veneer

Introduction Lighting Depth Covered Entrance Primary Classroom Electrical Depth Emergency System Redesign Photovoltaic Array Structural Breadth Conclusion Covered Entrance Performance Data RecommendationsActual Average Illuminance5 fc7.78 fc Power Allowance3846 W2700 W

Introduction Lighting Depth Covered Entrance Primary Classroom Electrical Depth Emergency System Redesign Photovoltaic Array Structural Breadth Conclusion Design Concepts Create a Public Environment Highlight Educational Wall at Front of Room Achieve Uniformity on the Workplane Important Design Features Educational Wall Workplane-Student Desks

Introduction Lighting Depth Covered Entrance Primary Classroom Electrical Depth Emergency System Redesign Photovoltaic Array Structural Breadth Conclusion Primary Classroom Criteria Horizontal Illuminance:30 fc Vertical Illuminance:30 fc Power Allowance:1.4 W/ft 2 Materials Ceiling:Acoustical Ceiling Tile Wall:White Latex Paint Doors:Gray Latex Paint Floor:Carpet Façade:Vinyl Composition Tile

Introduction Lighting Depth Covered Entrance Primary Classroom Electrical Depth Emergency System Redesign Photovoltaic Array Structural Breadth Conclusion Primary Classroom Performance Data RecommendationsActual Vertical Illuminance30 fc36.5 fc Average Illuminance at Taskplane 30 fc36.6 fc Power Allowance1365 W741 W

Introduction Lighting Depth Covered Entrance Primary Classroom Electrical Depth Emergency System Redesign Photovoltaic Array Structural Breadth Conclusion Emergency System Redesign Goals Move the Two Chillers to the Emergency Equipment Branch Purpose Circulate Cooled Air throughout to Decrease Humidity and the Decrease the Spread of Disease PanelChanges Panel 1L1Removed 4 Circuits Decreased the Actual Connected Load from 324A to 309A Decreased the MCB from 450A to 400A Panel 1LQ1 Added 4 Circuits Decreased the Actual Load from 126A to 116A due to 1560W for spare circuits removed for 600W of Chiller Controls

Introduction Lighting Depth Covered Entrance Primary Classroom Electrical Depth Emergency System Redesign Photovoltaic Array Structural Breadth Conclusion Emergency System Redesign Generator Resizing Existing GeneratorNew Generator Capacity125kW700kW Cost per KW$555.55$ Total Cost$69,443.75$189,525 Feeder Resizing Panel 1L1Panel 1LQ1 Feeder Size#3/0#1/0 Allowable Ampacity200A150A Recommendations The Benefits of Moving the Chillers to the Emergency System is not Worth the Additional Generator Cost.

Introduction Lighting Depth Covered Entrance Primary Classroom Electrical Depth Emergency System Redesign Photovoltaic Array Structural Breadth Conclusion Photovoltaic Array Goals To Decrease the Building Reliance on Utility Company Purpose To Decrease the Electric Bill for Crystal Lake Elementary School Percent of Sunny Day is Central Florida Array Location

Introduction Lighting Depth Covered Entrance Primary Classroom Electrical Depth Emergency System Redesign Photovoltaic Array Structural Breadth Conclusion Equipment Inverter Selectria PVI 95KW Modules SunPowerE19/320 Peak Power: 320W Efficiency: 19.6%

Introduction Lighting Depth Covered Entrance Primary Classroom Electrical Depth Emergency System Redesign Photovoltaic Array Structural Breadth Conclusion Array Design 4 Arrays 4 Inverters 1,008 Panels Generating KW Power Solar Panel Electrical DataInverter Electrical Data

Introduction Lighting Depth Covered Entrance Primary Classroom Electrical Depth Emergency System Redesign Photovoltaic Array Structural Breadth Conclusion Results Utility Savings Size of Array Amount of Electricity Produced by Array (MWh) Utility rate per MWh Total Savings KW686.6$ , Incentives $/Watt RebateTotal Savings Florida State Grants$4/Watt ( kW)$100,000 % CreditTotal Savings Federal Grants30% of initial cost$486,360 SavingsCosts Initial Material and Installation Cost Price/Module Number of Modules Total Cost Grid Tied System $1, ,008$1,621,200 Annual Operation and Maintenance Cost % of Initial CostTotal Cost/Year 0.35%$5,674

Introduction Lighting Depth Covered Entrance Primary Classroom Electrical Depth Emergency System Redesign Photovoltaic Array Structural Breadth Conclusion Results Recommendations Simple Payback 14.1 years 10.9 years of profit under warranty Benefits Outweigh Initial Cost

Introduction Lighting Depth Covered Entrance Primary Classroom Electrical Depth Emergency System Redesign Photovoltaic Array Structural Breadth Conclusion Structural Analysis Array Location Goals To Analyze the Existing Joists and Joist Girders Purpose To Determine if the Existing Roof Structure can Handle the Added Weight of the Photovoltaic Panels Loads Superimposed Dead Load15 psf Metal Decking2.26 psf Roofing Material5 psf PV Panel Load2.33 psf Live Load20 psf

Introduction Lighting Depth Covered Entrance Primary Classroom Electrical Depth Emergency System Redesign Photovoltaic Array Structural Breadth Conclusion Structural Analysis Materials SegmentMaterialSize Self-Weight (plf) Tributary Width Self-Weight (psf) Supported Load AExisting Joist26K912.2 plf4’-10” plf Existing Joist Girder 44G9N9.0K28 plf48’-8” kips BExisting Joist26K912.2 plf4’-7” plf Existing Joist Girder 32G7N9.0K24 plf48’-8” kips CExisting Joist26K912.2 plf4’-9” plf Existing Joist Girder 28G5N9.0K16 plf48’-8” kips DExisting Joist26K912.2 plf4’-9” plf Existing Joist Girder 40G8N9.0K26 plf48’-8” kips EExisting Joist26K912.2 plf4’-9” plf Existing Joist Girder 48G10N9.0K37 plf48’-8” kips FExisting Joist26K912.2 plf4’-9” plf Existing Joist Girder 28G6N9.0K20 plf48’-8” kips Joist Calculations 1.2*Dead Load + 1.6*Live Load = Weight Weight*Tributary Width = Supported Load Supported Load < Supported Load of Joist OK Joist Girder Load*(Tributary Width/2) = Supported Load Supported Load < Supported Load of Joist Girder OK Results Existing Structural System will Support Additional Load of Photovoltaic Panels

Introduction Lighting Depth Covered Entrance Primary Classroom Electrical Depth Emergency System Redesign Photovoltaic Array Structural Breadth Conclusion Summary Lighting Energy Efficient Design Creates a Welcoming and Productive Environment Electrical Create Comfort and Decrease Spread of Disease by Circulating Cooled Air throughout Emergency Shelter With No Cost Benefits Decreased Buildings Energy Consumption by Generating Power Through a Photovoltaic Array Structural Addition of Photovoltaic Array is Supported by the Existing Structural System

Introduction Lighting Depth Covered Entrance Primary Classroom Electrical Depth Emergency System Redesign Photovoltaic Array Structural Breadth Conclusion Acknowledgements Thank You! Architectural Engineering Faculty Classmates and Friends My Family Seminole County School Boards Dana Chester MPE Doug Matern Ryan Strandquest

Introduction Lighting Depth Covered Entrance Primary Classroom Electrical Depth Emergency System Redesign Photovoltaic Array Structural Breadth Conclusion Questions?