APPLICATION OF THE CLOSED CYCLE PRINCIPLE TO AIRCRAFT AUXILIARY POWER PLANTS Cooling problem study for a 3mall constant-power-output closed-cycle gas turbine for very high altitudes and high flight-Mach-numbers

摘要

The closed-cycle power plant which can work at any altitude and supply full sea level power independent from the ambient pressure necessarily has to transfer heat to the surrounding atmosphere. For very high altitudes and extreme flight speeds the cooling problem is studied in this report using fundamental calculations for a number of cooling methods. A constant power output plant has been envisaged as an energy source to drive aircraft accessories (electric generator) in a plane or missile travelling at 100'000 ft, with M 4.