Low profile monotube vehicle radiators are possible with FBHX.
Low NOx, low pressure ratio regenerated gas turbines with efficiencies up to 55% are now reliable and cost effective. A Prius could get 70 mpg. Railroads could save 20% in fuel costs and greatly reduce smog.
Bret Cahill
A swamp cooler could deliver cool _dry_ air by using the cool humid output from the evaporative cooler to cool another stream of dry hot air.
Before FBHX the cost of a several m^3/sec gas-gas heat exchanger was prohibitive.
Bret Cahill
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