1. Team Gong CDR SDP10 1 /14 Comprehensive Design Review Team Gong: Jason Dodge Eric Every Andrew Hills Alan R Levin F.R.I.D.G.E.

2. Team Gong CDR SDP10 2 /14 Outline  Review of Project  CDR Deliverables  Final Design  Gantt Chart

3. Team Gong CDR SDP10 3 /14 Review  Goal Increase frequency to 60Hz by reducing load on grid Implement a system that can adjust duty cycle on appliances based on user preferences and utility input.

4. Team Gong CDR SDP10 4 /14 Review Continued  Appliance Node Wireless/Wired Communication Switch and thermometer retrofitted to refrigerator Voltage, Current, Frequency, and Energy measurements  Customer Server Software Receives and sends messages to and from Appliance Node  Utility Server Software Sends requests to Customer Control Software Collects information from Customer Control Software

5. Team Gong CDR SDP10 5 /14 CDR Deliverables  Promised CDR Deliverables: Finished Appliance Node Prototype Frequency Sensor Preliminary Software Suite  Actual CDR Deliverables: New Appliance Node Design Thermal and Power Simulations Preliminary Software Suite

6. Team Gong CDR SDP10 6 /14 Simulations

7. Team Gong CDR SDP10 7 /14 Simulations Continued

8. Team Gong CDR SDP10 8 /14 Simulations Continued

9. Team Gong CDR SDP10 9 /14 Cooling/Heating Curves  Application of Newton's cooling/heating law  Open-top freezer model  Justification of Appliance Node sampling rate

10. Team Gong CDR SDP10 10 /14 Software Suite  Client-Server Model Utility as Server Customer as Client  Secure Connection RSA public-key encryption  Utility Interface Plan Extensible logic definition system for automatic grid control  Customer Interface Plan Intuitive GUI for precise node control

11. Team Gong CDR SDP10 11 /14 Software Suite Continued

12. Team Gong CDR SDP10 12 /14 Final Design  ADE7753 RMS-to-DC Real, Apparent, Reactive Energy Frequency IEC compliant  Removal of Meter Node Safer and more compact design  New Appliance Node with all sensors Measurements only correspond to Refrigerator

13. Team Gong CDR SDP10 13 /14 Final Design Continued

14. Team Gong CDR SDP10 14 /14 Gantt Chart