Energy-Efficient Redesign of Crystal Lake Elementary

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

2. Building Overview • Introduction • Lighting Depth • Covered Entrance • Primary Classroom • Electrical Depth • Emergency System Redesign • Photovoltaic Array • Structural Breadth • Conclusion 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

3. Scope of Redesign • Introduction • Lighting Depth • Covered Entrance • Primary Classroom • Electrical Depth • Emergency System Redesign • Photovoltaic Array • Structural Breadth • Conclusion 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

4. Scope of Redesign – Presented Today • Introduction • Lighting Depth • Covered Entrance • Primary Classroom • Electrical Depth • Emergency System Redesign • Photovoltaic Array • Structural Breadth • Conclusion 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

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

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

7. Covered Entrance • Introduction • Lighting Depth • Covered Entrance • Primary Classroom • Electrical Depth • Emergency System Redesign • Photovoltaic Array • Structural Breadth • Conclusion Criteria Materials

8. Covered Entrance • Introduction • Lighting Depth • Covered Entrance • Primary Classroom • Electrical Depth • Emergency System Redesign • Photovoltaic Array • Structural Breadth • Conclusion

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

10. Primary Classroom • Introduction • Lighting Depth • Covered Entrance • Primary Classroom • Electrical Depth • Emergency System Redesign • Photovoltaic Array • Structural Breadth • Conclusion Criteria Materials

11. Primary Classroom • Introduction • Lighting Depth • Covered Entrance • Primary Classroom • Electrical Depth • Emergency System Redesign • Photovoltaic Array • Structural Breadth • Conclusion

12. Emergency System Redesign • Introduction • Lighting Depth • Covered Entrance • Primary Classroom • Electrical Depth • Emergency System Redesign • Photovoltaic Array • Structural Breadth • Conclusion 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

13. Emergency System Redesign • Introduction • Lighting Depth • Covered Entrance • Primary Classroom • Electrical Depth • Emergency System Redesign • Photovoltaic Array • Structural Breadth • Conclusion Feeder Resizing Recommendations The Benefits of Moving the Chillers to the Emergency System is not Worth the Additional Generator Cost. Generator Resizing

14. Photovoltaic Array • Introduction • Lighting Depth • Covered Entrance • Primary Classroom • Electrical Depth • Emergency System Redesign • Photovoltaic Array • Structural Breadth • Conclusion 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

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

16. Array Design • Introduction • Lighting Depth • Covered Entrance • Primary Classroom • Electrical Depth • Emergency System Redesign • Photovoltaic Array • Structural Breadth • Conclusion Solar Panel Electrical Data Inverter Electrical Data 4 Arrays 4 Inverters 1,008 Panels Generating 322.56KW Power

17. Results • Introduction • Lighting Depth • Covered Entrance • Primary Classroom • Electrical Depth • Emergency System Redesign • Photovoltaic Array • Structural Breadth • Conclusion Costs Savings

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

19. Structural Analysis • Introduction • Lighting Depth • Covered Entrance • Primary Classroom • Electrical Depth • Emergency System Redesign • Photovoltaic Array • Structural Breadth • Conclusion 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 Array Location

20. Structural Analysis • Introduction • Lighting Depth • Covered Entrance • Primary Classroom • Electrical Depth • Emergency System Redesign • Photovoltaic Array • Structural Breadth • Conclusion 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

21. Summary • Introduction • Lighting Depth • Covered Entrance • Primary Classroom • Electrical Depth • Emergency System Redesign • Photovoltaic Array • Structural Breadth • Conclusion 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

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

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