Proto Final Exterior

Final of working prototype showing temperatures displayed.

First Place!

Me showing reception of the 2023 Senior Capstone design award challenge.

CAD section

Internals Assy

IMG_4971 3

IMG_4787

DisplayCabinet

FrontPanel

Heatformer

Custom heat forming jig with nichrome wire.

Heatforming_jig

Heat formed Sections

These heat formed acrylic sections are cut and ready to be solvent glued together to form the organ chamber.

CircuitCity

DB25_Cable

Ice Door

CAD of Rev 3

End of first semester capstone overall assembly model.

POC 2.0

New idea to increase cooling power using water based coolant.

Early concept sketch

Dry Ice with Vapor Cooling proof-of-concept (POC) test

Proof-of-concept (POC) 1.0

First proof of concept using dry ice and vapor cooling. Found cooling power to be too low with vapor alone.

Blower icing issue

Proof of concept test showing icing of blower when used for moving vapor. Low pressure was causing atmospheric moisture to condense and freeze, reducing efficacy of the blower.

POC 2.0

Heat Exchange Underside for water cooled subject with dry ice cold reservoir.

POC 2.0

Connected dry ice plate to heat exchanger resulted in frozen coolant. Heat exchanger temperatures fell to around -100F.

Internals Assy with Detail

New plan to solve coolant freezing.

Lifting tray detail

New system to solve coolant freezing by controlling heat transmission to cold reservoir.

Milling pocket into tray

New system to solve coolant freezing by controlling heat transmission to cold reservoir.

Dry ice lifting tray

Angle shown is exaggerated, only about 3˚ is necessary.

POC 3.0 showing set-up

CCW from bottom right: electronics including 5V and 12V system meters, thermocouple displays, microcontroller and pump relays. Power source, internals assembly on drip tray.

End of first semester POC 3.0

Exploded view of internals, overall assembly

Overall Assembly

Internals assembly

Overall assembly, exploded

Internal assembly, detail