This heat exchanger was part of a project funded by ARPA-E, a new part of the United States Department of Energy. ARPA-E funds higher risk projects with high potential
early in development. This heat exchanger satisfied the deliverable to capture over 90% of the CO2 from synthetic flue gas for a minimum of 3 hours without fouling. We
are proud to declare that we completed this milestone on the first trial run! This heat exchanger was filled with challenges, most of which arose from the need to make
it transparent. In order to capture 90% of the CO2 in the Cryogenic Carbon Capture process, the gas stream must be cooled to below -190 Farenheight (-123 C). All materials
contract when cooled this much, but polymers contract much more than metals. For this reason, I chose to spring-load the nylon flanges and double-walled acrylic shell to
prevent leaks when the parts shrunk.