Maggie Alvarado Diego Azevedo Raphael Santos Cavalcanti Natalie Levings Richard Robards Bruno Vieira

Overview Status at End of Fall – Design Choices Solidified Current Status Scope of Work for Spring –Heat Regulation –Water-heating Unit –Alternative Fuels & Engine Conversion –Expansion –Testing Collaboration with Brazil – Expansion Major Difficulties Schedule/Plan –Spring Schedule Conclusion

Status at End of Fall Heat Regulation for Refrigeration Unit: The heat bypass for the refrigerator to be automated and determined by refrigerator temperature Water Heating Unit: Bypass water-heating unit and distiller to be added. Alternative Fuel: A conversion kit to be added that will allow the engine to run off of compressed natural gas (CNG) and gasoline. Gas Expansion: The expanding gas from the natural gas tank to be used to aid in cooling the current cool space.

Current Status Design choices have been made All component have been ordered except for the natural gas tank. 80% of the components have been received. Preliminary expansion calculations from Brazilian teammates have been completed. Design of second cool space.

Scope of Work for Spring: Heat Regulation Tasks: Machine Valves, install Piping and Install Electronic Components for Automation. Valve Bypass Piping Rotary Actuator

Scope of Work for Spring: Water Heating Unit Tasks: Install Bypass Piping, machine valve, add distiller and heating element. Copper Piping Copper Heating Element Insulated Sides Water Distiller Bypass Piping Location of Distiller Unit

Scope of Work for Spring: Alternative Fuels & Engine Conversion Tasks: Install conversion kit and piping for natural gas supply Obtain natural gas Engine

Scope of Work for Spring: Expansion Tasks: Route expanding gas to cool distiller collection container. See Video

Scope of Work for Spring: Testing Temperature: K-type thermocouples Flow Velocity: Flow- meter Data Collection: LabVIEW Locations of Thermocouples        Legend: 1. Water Reservoir Inlet 2. Water Reservoir Outlet 3. Refrigeration Space 4. Conduction Circuit End 5. Exhaust 6. Bypass Piping Inlet to Distiller 7. H/X Exhaust Inlet 8. H/X Exhaust Outlet 

Collaboration with Brazil: Expansion The team has accomplished the following via weekly video conferences, s and file exchange: –Preliminary calculations for cooling effects of rapidly expanding gas –Design of second cool space around distiller collection unit.

Major Difficulties Electronic Components CNG Assembly Scheduling

Schedule/Plan: Proposed Spring Schedule

Conclusion Status at End of Fall – Design Choices Solidified Current Status –80% of components in house ready to be assembled –Change to how expansion will be used Scope of Work for Spring –Assembling and modification to take place in January and February –Testing to begin in March Collaboration with Brazil –Expansion will be used to cool water from distiller Schedule/Plan