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

1. Dynamic Window Design Iowa State University and Pella Corporation

2. 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.

3. Overview Project Description Industrial Collaboration Team Collaboration Design Process Timeline Budget Challenges Successes Future Work

4. Project Description Industrial Partner: Pella Corporation Project Scope: Develop R10 window using Smart Sash 3 as baseline design Team Adviser: Dr. Lie Tang, ABE

5. Heat Transfer Review Radiation: Solar Heat Transfer Conduction: Temperature Difference Convection: Transfer due to wind Source: http://www.reliant.com

6. 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

7. Team Collaboration Weekly Large Group Meetings Weekly Subgroup Meetings Weekly Management Meetings Google Groups Page and email communication Socials

8. Design Process Define Criteria and Constraints Initial Design Selection and Review Final Design Selection Modifications Development Testing

10. Programming

11. Sensors

14. Fiberglass Clad

15. Pulverized PVC and wood pulp

17. Hard foam sheets

19. Materials Design Selection Bamboo/Fiberglass Clad Frame Bamboo Blinds with Low-E Silver Coating Hard Foam Sheets

20. 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

21. 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

22. Hardware Market Research

23. Hardware Design Selection ArduinoDuemilanove ShenanoKenshi Stepper Motor Photoresistor 2 Temperature Sensors Stepper Motor Driver ArduinoDuemilanove Override Bin

24. 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

25. Budget Savings: $2,003

27. Follow-up emails and phone calls with vendors

28. Sought advice from electronics shop at Iowa State University

30. Future Work Integrate hardware components with implemented software Component testing Identification of critical operating parameters

31. 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!

32. Questions???