airmagnac wrote:The efficiency of these things is quite high, it can be in the 90-97% range, but with the high powers involved in such small volumes, even 5% loss as heat can require extensive cooling aids. In this case, a complex liquid cooling system with an exchanger to dump the heat out of the fuselage and into the atmosphere.
The big problem is that these things are sensitive to temperature and humidity, so the, have to be installed in the pressurized fuselage, whereas their loads are usually outside. So the overall physical footprint ends up being much more complex than with the classic bleed or hydraulic power systems.
7BOEING7 wrote:BravoOne wrote:These are liquid cooled through the Power Electronics Cooling System, better known as the PECS system. Pronounced PEECEEs.
Never heard that one -- always heard them called "pecks".
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