leah matern lighting/electrical option faculty advisors: dr. richard mistrick and ted dannerth april...
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![Page 1: Leah Matern Lighting/Electrical Option Faculty Advisors: Dr. Richard Mistrick and Ted Dannerth April 13, 2011 Crystal Lake Elementary School Lake Mary,](https://reader036.vdocument.in/reader036/viewer/2022062322/56649ea95503460f94bae5ea/html5/thumbnails/1.jpg)
Leah MaternLighting/Electrical Option
Faculty Advisors: Dr. Richard Mistrick and Ted DannerthApril 13, 2011
Crystal Lake Elementary School Lake Mary, Florida
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Introduction
Lighting Depth•Covered Entrance•Primary Classroom
Electrical Depth•Emergency System Redesign•Photovoltaic Array
Structural Breadth
Conclusion
Building Overview
Building NameCrystal Lake Elementary School
LocationLake Mary, FL
OccupantStudent grades K-5, Teachers, Administrators780 Student StationsUsed as community Hurricane Shelter
Size113,927 S.F
LevelsTwo Floors
AcresEleven Acres
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Introduction
Lighting Depth•Covered Entrance•Primary Classroom
Electrical Depth•Emergency System Redesign•Photovoltaic Array
Structural Breadth
Conclusion
Scope of RedesignLighting Design
Covered Entrance and Covered WalkwaysLobbyMultipurpose RoomPrimary Classroom
Electrical DesignBranch Circuit Redesign for Lighting SpacesShort Circuit AnalysisEmergency System RedesignPhotovoltaic Array Design
Structural AnalysisRoof Analysis of Addition of Photovoltaic System
Acoustical Analysis Reverberation Time Study
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Introduction
Lighting Depth•Covered Entrance•Primary Classroom
Electrical Depth•Emergency System Redesign•Photovoltaic Array
Structural Breadth
Conclusion
Scope of Redesign – Presented TodayLighting Design
Covered Entrance and Covered WalkwaysLobbyMultipurpose RoomPrimary Classroom
Electrical DesignBranch Circuit Redesign for Lighting SpacesEmergency System RedesignPhotovoltaic DesignShort Circuit Analysis
Structural AnalysisRoof Analysis of Addition of Photovoltaic System
Acoustical Analysis Reverberation Time Study
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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
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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
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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/ft2
: 30W/linear ft Door Width
Materials
Ceiling: Exterior Drywall
Column: White Painted Concrete
: Brick Veneer
Floor: Reinforced Concrete Slab
Façade: Brick Veneer
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Introduction
Lighting Depth•Covered Entrance•Primary Classroom
Electrical Depth•Emergency System Redesign•Photovoltaic Array
Structural Breadth
Conclusion
Covered Entrance
Performance Data
Recommendations Actual
Average Illuminance 5 fc 7.78 fc
Power Allowance 3846 W 2700 W
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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
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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/ft2
Materials
Ceiling: Acoustical Ceiling Tile
Wall: White Latex Paint
Doors: Gray Latex Paint
Floor: Carpet
Façade: Vinyl Composition Tile
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Introduction
Lighting Depth•Covered Entrance•Primary Classroom
Electrical Depth•Emergency System Redesign•Photovoltaic Array
Structural Breadth
Conclusion
Primary Classroom
Performance Data
Recommendations Actual
Vertical Illuminance 30 fc 36.5 fc
Average Illuminance at Taskplane
30 fc 36.6 fc
Power Allowance 1365 W 741 W
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Introduction
Lighting Depth•Covered Entrance•Primary Classroom
Electrical Depth•Emergency System Redesign•Photovoltaic Array
Structural Breadth
Conclusion
Emergency System Redesign
GoalsMove the Two Chillers to the
Emergency Equipment Branch
PurposeCirculate Cooled Air throughout to
Decrease Humidity and the Decrease the Spread of Disease
Panel Changes
Panel 1L1 Removed 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
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Introduction
Lighting Depth•Covered Entrance•Primary Classroom
Electrical Depth•Emergency System Redesign•Photovoltaic Array
Structural Breadth
Conclusion
Emergency System Redesign
Generator Resizing
Existing Generator New Generator
Capacity 125kW 700kW
Cost per KW $555.55 $270.75
Total Cost $69,443.75 $189,525
Feeder Resizing
Panel 1L1 Panel 1LQ1
Feeder Size #3/0 #1/0
Allowable Ampacity 200A 150ARecommendations
The Benefits of Moving the Chillers to the Emergency System is not Worth the Additional Generator Cost.
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Introduction
Lighting Depth•Covered Entrance•Primary Classroom
Electrical Depth•Emergency System Redesign•Photovoltaic Array
Structural Breadth
Conclusion
Photovoltaic Array
GoalsTo Decrease the Building Reliance
on Utility Company
PurposeTo Decrease the Electric Bill for Crystal Lake Elementary School
Percent of Sunny Day is Central Florida
Array Location
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Introduction
Lighting Depth•Covered Entrance•Primary Classroom
Electrical Depth•Emergency System Redesign•Photovoltaic Array
Structural Breadth
Conclusion
Equipment
InverterSelectria PVI 95KW
ModulesSunPowerE19/320
Peak Power: 320WEfficiency: 19.6%
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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 322.56KW Power
Solar Panel Electrical Data Inverter Electrical Data
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Introduction
Lighting Depth•Covered Entrance•Primary Classroom
Electrical Depth•Emergency System Redesign•Photovoltaic Array
Structural Breadth
Conclusion
Results
Utility SavingsSize of Array
Amount of Electricity Produced by Array
(MWh)
Utility rate per MWh
Total Savings
322.56 KW 686.6 $115.14 79,055.124
Incentives $/Watt Rebate Total Savings
Florida State Grants $4/Watt (322.56 kW) $100,000 % Credit Total Savings
Federal Grants 30% of initial cost $486,360
SavingsCosts
Initial Material and Installation Cost Price/Module Number of
ModulesTotal Cost
Grid Tied System
$1,608.33 1,008 $1,621,200
Annual Operation and Maintenance Cost% of Initial Cost Total Cost/Year
0.35% $5,674
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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
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Introduction
Lighting Depth•Covered Entrance•Primary Classroom
Electrical Depth•Emergency System Redesign•Photovoltaic Array
Structural Breadth
Conclusion
Structural Analysis
Array Location
GoalsTo Analyze the Existing Joists and
Joist Girders
PurposeTo Determine if the Existing Roof Structure can Handle the Added
Weight of the Photovoltaic Panels
Loads
Superimposed Dead Load 15 psf
Metal Decking 2.26 psf
Roofing Material 5 psf
PV Panel Load 2.33 psf
Live Load 20 psf
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Introduction
Lighting Depth•Covered Entrance•Primary Classroom
Electrical Depth•Emergency System Redesign•Photovoltaic Array
Structural Breadth
Conclusion
Structural AnalysisMaterials
Segment Material Size Self-Weight (plf)
Tributary Width
Self-Weight (psf)
Supported Load
A Existing Joist 26K9 12.2 plf 4’-10” 2.52 330 plfExisting Joist
Girder44G9N9.0K 28 plf 48’-8” 0.575 9 kips
B Existing Joist 26K9 12.2 plf 4’-7” 2.66 330 plfExisting Joist
Girder32G7N9.0K 24 plf 48’-8” 0.493 9 kips
C Existing Joist 26K9 12.2 plf 4’-9” 2.57 330 plfExisting Joist
Girder28G5N9.0K 16 plf 48’-8” 0.329 9 kips
D Existing Joist 26K9 12.2 plf 4’-9” 2.57 330 plfExisting Joist
Girder40G8N9.0K 26 plf 48’-8” 0.534 9 kips
E Existing Joist 26K9 12.2 plf 4’-9” 2.57 330 plfExisting Joist
Girder48G10N9.0K 37 plf 48’-8” 0.760 9 kips
F Existing Joist 26K9 12.2 plf 4’-9” 2.57 330 plfExisting Joist
Girder28G6N9.0K 20 plf 48’-8” 0.411 9 kips
Joist Calculations1.2*Dead Load + 1.6*Live Load = WeightWeight*Tributary Width = Supported LoadSupported Load < Supported Load of Joist OK
Joist GirderLoad*(Tributary Width/2) = Supported LoadSupported Load < Supported Load of Joist Girder OK
ResultsExisting Structural System will Support Additional Load of Photovoltaic Panels
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Introduction
Lighting Depth•Covered Entrance•Primary Classroom
Electrical Depth•Emergency System Redesign•Photovoltaic Array
Structural Breadth
Conclusion
Summary
LightingEnergy 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
StructuralAddition of Photovoltaic Array is Supported by the
Existing Structural System
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Introduction
Lighting Depth•Covered Entrance•Primary Classroom
Electrical Depth•Emergency System Redesign•Photovoltaic Array
Structural Breadth
Conclusion
Acknowledgements
Thank You!
Architectural Engineering FacultyClassmates and Friends
My Family
Seminole County School BoardsDana Chester
MPEDoug Matern
Ryan Strandquest
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Introduction
Lighting Depth•Covered Entrance•Primary Classroom
Electrical Depth•Emergency System Redesign•Photovoltaic Array
Structural Breadth
Conclusion
Questions?