Thu Apr 06, 2017 10:42 pm
Hello Woodreau, thank you for your reply, I appreciate it very much. So if I understand you correctly, first of all their definitely IS an air cycle machine in non-pressurized aircraft and it would consist of the usual 2 heat exchangers, a turbine, and a compressor. And the bleed air is cooled in a heat exchanger with RAM air. Just for the record we are only looking to heat the cabin at our cruising altitude of 13,000 ft.