EFFECT OF HEAT AND POWER EXTRACTION ON TURBOJET-ENGINE PERFORMANCE II - EFFECT OF COMPRESSOR-OUTLET AIR BLEED FOR SPECIFIC MODES OF ENGINE OPERATION

摘要

The effect of air bleed from the compressor outlet on the per-formance of turbojet engines with variable-area and rated-area tail-pipe nozzles was calculated by the use of generalized performance charts. The modes investigated vere constant turbine-inlet tem¬perature and constant thrust operation with fixed and variable tail-pipe-nozzle areas. The effect of altitude, compressor-inlet tem¬perature, and flight Mach number on engine performance with air bleed is shown. The maximum amount of air that can be bled from the com¬pressor outlet of a turbojet engine equipped with a variable-area or rated-area tail-pipe nozzle is also given for various values of alti¬tude and thrust