2009 Annual SWE Team Tech Presentation
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2009 Annual SWE Team Tech Presentation

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This is the presentation given by ISU SWE Team Tech at the 2009 Annual SWE convention.

This is the presentation given by ISU SWE Team Tech at the 2009 Annual SWE convention.

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2009 Annual SWE Team Tech Presentation 2009 Annual SWE Team Tech Presentation Presentation Transcript

  • Dynamic Window Design
    Iowa State University and Pella Corporation
  • Team Members
    Project Manager
    Carol Faulhaber, ABE
    Assistant Project Managers
    IshaLabhasetwar, ChemE
    WilTushaus, EE
    Team Members
    Ashley Polkinghorn, CprE
    Rachel McDaniel, ABE
    Leah Merner, ME
    Lisa Nielsen, Mat.E
    Steve Mueller, Comp. Sci.
  • Overview
    Project Description
    Industrial Collaboration
    Team Collaboration
    Design Process
    Timeline
    Budget
    Challenges
    Successes
    Future Work
    View slide
  • Project Description
    Industrial Partner:
    Pella Corporation
    Project Scope:
    Develop R10 window using Smart Sash 3 as baseline design
    Team Adviser:
    Dr. Lie Tang, ABE
    View slide
  • Heat Transfer Review
    Radiation:
    Solar Heat Transfer
    Conduction:
    Temperature Difference
    Convection:
    Transfer due to wind
    Source: http://www.reliant.com
  • Industrial Collaboration with Pella Corp.
    Plant Visits
    Lab Tour and Project Briefing
    Manufacturing Tour
    Semi-monthly Meetings
    Progress Updates
    Brainstorming Sessions
    Windows 101
    Basic window engineering concepts
    Introduction to modeling software
    Design Reviews
  • Team Collaboration
    Weekly Large Group Meetings
    Weekly Subgroup Meetings
    Weekly Management Meetings
    Google Groups Page and email communication
    Socials
  • Design Process
    Define Criteria and Constraints
    Initial Design Selection and Review
    Final Design Selection
    Modifications
    Development
    Testing
  • Design Process
    Initial Subgroups
    Testing and Market Research
    Sensor Design
    Window Materials
    Final Subgroups
    • Window Materials
    • Programming
    • Sensors
    • Algorithm Development
  • Criteria and Constraints
    Window Cost
    Number of Components
    Production Cost
    Energy Efficiency
    Environmental Impact
    Thermal Performance
    Appearance
    Aesthetically pleasing
    Viewable Area
    Large viewable area
    Function/Durability
    Easy to Operate
    Durability
    Serviceability
  • Materials Market Research
    Window Blinds
    Silhouette
    Luminette
    Alouette
    Odysee
    Aluminum
    Wood
    Frame Materials
    • Bamboo
    • Fiberglass Clad
    • Pulverized PVC and wood pulp
    • Vinyl-wood clad
    Insulation
    • Soy-based spray foam
    • Hard foam sheets
    • Jean Insulation
  • Materials Cont’d
  • Materials Design Selection
    Bamboo/Fiberglass Clad Frame
    Bamboo Blinds with Low-E Silver Coating
    Hard Foam Sheets
  • Algorithm/Programming Research
    Complex Algorithm
    Location Coordinates
    Window Orientation
    Additional User Inputs
    Simple Algorithm
    Temperature
    Light Intensity
    Sources: www.efficientwindows.org and www.physicalgeometry.net
  • Algorithm/Programming Design Selection
    Day
    Override?
    Scan
    No
    Night now?
    Yes
    Sleep
    Turn Blinds
    No
    Yes
    Night
    Override?
    No
    Sleep overnight
    Close Blinds
    Sleep
    Yes
    Morning
    No
    Yes
    Override?
    Sleep
    Sun up?
    Yes
    No
    Turn Blinds
  • Hardware Market Research
  • Hardware Design Selection
    ArduinoDuemilanove
    ShenanoKenshi Stepper Motor
    Photoresistor
    2 Temperature Sensors
    Stepper Motor
    Driver
    ArduinoDuemilanove
    Override Bin
  • Timeline
    Establish Design Criteria: Objectives met
    Research/Brainstorm Ideas: Objectives met
    Analyze Alternatives: Objectives met/ Changes in project goals
    Develop Prototype: Some objectives met, changes in project goals
    Test Design: Objectives not completed
    Re-Design: Some Objectives met
    Evaluate Final Design: Objectives not completed
  • Budget
    Savings: $2,003
  • Overcoming Challenges
    Complexity of project scope
    Members leaving the team or not anticipating the workload
    Components failing to ship on time and communication with vendors
    Limited experience with stepper motors
    Centralized documentation
    • Re-focusing and Developing new subgroups
    • Follow-up emails and phone calls with vendors
    • Sought advice from electronics shop at Iowa State University
    • Emailing updated code copies to relevant team members and adding documents to google groups page
  • Successes
    Prototype that incorporates selected materials
    Team communication and collaboration with Pella
    Understanding of individual hardware components and ability to operate individual components
    Complete algorithm design and partial implementation
  • Future Work
    Integrate hardware components with implemented software
    Component testing
    Identification of critical operating parameters
  • Thank You
    Special Thanks
    Pella Corporation
    Dr. Lie Tang, Iowa State University (ABE)
    Dr. David Grewell, Iowa State University (ABE)
    Lee Harker, Iowa State University (ECpE)
    SWE!
  • Questions???