Liquid nitrogen cooled wind tunnel

Heat exchanger ice detection

Ian Bullock, Julia Diaz, Marco Fernandez, Yoshihiro Ichimura, Benyue Liu, Andrew Macrae, Christopher Nield, Winni Wei

This was a year long Clinic project at Harvey Mudd College done for Honeywell Aerospace. Honeywell is a leading manufacturer of environmental control systems for modern aircraft. The heat exchangers used in the environmental control systems are prone to icing issues which reduce overall system efficiency. The industry standard method for detecting ice buildup uses a change in pressure across the heat exchanger, but this method is only able to detect severe icing conditions.

During the course of our project, we investigated several novel ice detection methods and also constructed the liquid nitrogen cooled wind tunnel pictured above to simulate in-flight icing conditions.

RGB LED lights

RGB LED control

Real time wireless control of RGB LED lights for ambient room lighting.
Tidal turbine

Tidal turbine

Generating small amounts of electricity from water motion.
Liquid nitrogen cooled wind tunnel

Ice detection

Novel sensing methods for ice buildup on aircraft heat exchangers.
Polyphonic midi sound module

Polyphonic synth

FPGA and PIC microcontroller based polyphonic MIDI synthesizer.
Low noise CCD readout board

CCD readout

Low noise analog amplification and digital processing of the signal from an astronomical CCD sensor.
Courtyard chess set

Courtyard chess

Large scale courtyard chess set.

© 2015 by Ian Bullock
Contact: ian.bullockGETRIDOFTHIS@yale.edu