The Bladeless Tesla Turbine and Green Refrigeration

Start: 10/24/2012 - 1:15pm
End  : 10/24/2012 - 2:15pm

Applied Math Seminar

Juan Cepeda-Rizo (Jet Propulsion Laboratory/ Caltech)


A Reverse Brayton Air Conditioner (RBAC) system that uses air as the refrigerant is proposed to replace main stream R134a vapor compression systems in an automotive vehicle.  The technology employs a “Tesla” bladeless turbocompressor postulated to provide high efficiency with reduced mechanical complexity, and thus cost. Mathematical modeling of flow through the turbine is investigated; isentropic, inertia-dominated compressible single-phase flow between two rotating disks is assumed. The proposed system requires 1.7kWe from the engine, harnessed entirely from the exhaust waste heat, and is capable of lifting 5.6 kW of heat (1.25 – 1.56 tons refrigeration). This amount of cooling is sufficient for providing air conditioning for a standard midsize vehicle under hot static conditions similar to a test parameters report submitted by Chrysler. The mathematical modeling was investigated during a sustainability workshop sponsored by American Institute of Mathematics (AIM), in Palo Alto, CA on January 2010, where participants included Ali Nadim and Ellis Cumberbatch from CGU.

KRV 164

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