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 SidesWater 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, e-mails 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