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we were instead using peltier coolers and a finned heat transfer setup. Analysis showed about a 3% increase in power due to increased density. (We were up against a very small restrictor requirement) If this setup used cryogenic liquid, the potential for charge cooling is far greater. However, the limitation here will be purely heat transfer limited as this low surface area laminar structure is unlikely to handle high flowrates. Instead focus this technology on air/water intercooler with cryogenic liquid instead of water and then your talking. Yes icing will be ever present and one of the major reasons we abandoned the concept. Say you induct 400cfm, roughly 28 lbs/minute. To cool that air one degree C requires 9190 joules removed per minute. (specific heat 723 J/kg-K) With a latent heat of vaporization of 198.38 kJ/kg for liquid nitrogen, you would comsume .046kg/min per degree celcius. That would be 57ml of LN2. So say you wanted to drop it 100 celcius, that 5.7 LITERS per minute. Thats some serious consumption right there. Granted this can be done, but its hardly a daily driver sort of affair. Drag runs? Sure. But all that work? Not to mention the shear VOLUME of nitrogen gas expelled. In the above example, 3,680 liters of nitrogen gas. (130 ft3)
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13:49:48 01/19/06
