IPRO 330

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IPRO 330

• Window Solar Control

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Team Members

• Team LeaderMaen Alkhader MMAE
• Team Members Shivanee Patel CPEMike Miller
  CSAsim Khan EE

• SponsorCommunity Energy Cooperative
• AdvisorNancy Hamill Governale

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Introduction

• Solar Problem Energy Use Peak Demand Day
  Lighting
• Solar Awning Definition

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Steps Taken

• Statement of objective and goals
• Research Solar aspect
• Research current products shortcomings
• Use knowledge gathered to develop designs
• Test awnings by simulation
• Study results
• Make a model of our product
• Present results

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Solar Awning

• This product should be
• Inexpensive
• Able to preserve window egress and ventilation
  functions
• Easy to handle (permanently installed)
• Able to produce substantial heat reduction
• Able to allow solar heat in winter
• Enhances day light brightness
• Shouldnt reduce window view
• Shouldnt alter the appearance of the building

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Statement of Objective

• Develop an inexpensive Solar Awning which will
  be used primarily to reduce peak electric demand
  and improve cooling energy efficiency.

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Peak Demand
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Research

• Solar Aspect
• Heat gain from the sun
• Sun Angle
• Daylighting

• Current Products
• Awnings
• Blinds
• Glazing
• Windows

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Existing Awnings

• ProsBlock Solar RadiationAestheticsVariety

• ConsBlock Solar Radiation (winter)Block Day
  LightingExpensiveNo Solar in Design

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Blinds
New Windows/Glazing

• ProsBlock Solar Radiation
• Doesnt obstruct view
• No decrease in Day Lighting

• ProsBlock Solar Radiation
• Doesnt obstruct view

• ConsBlock Day LightingDoesnt fully Block
  Solar Radiation No Solar in Design

• Cons- Very Expensive

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Flat Awning
? Top View
? 3D View
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Sponsor Awning
? Top View
? 3D View
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Curved Awning
? Top View
?3D View
?Front View
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Testing with DOE 2.1

• Assumptions
• Room Dimensions (12ft12ft9ft)
• Window Dimensions (2ft4.5ft)
• Single clear glass
• South facing Window

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Window Effect on cooling load
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Window Effect on cooling load ()
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Window Effect on heating load (BTU)
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Window Effect on heating load ()
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Awning Effect on cooling load (MBTU)
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Comparison of Awnings on cooling load (MBTU)
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Efficiency of Awnings
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Average Day Lighting
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Percent Reduction in Day Lighting
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Building a model
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Conclusion

• Inexpensive, simple design, cheap material.
• Achieved Energy savings
• Minimal decrease in Day Lighting
• Research involved only South windows

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Suggestions for Further Research

• Building a full scale model
• Further research in Awnings for East-West Windows
• Further test involving glazing, blinds and
  awnings
• Material for the awning

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Our Thanks

• John Poterfield
• Ray DeBoth
• Pongsak Chaisuparasmikul
• Kkachai Mahaek