EFFECT OF HEAT AND POWER EXTRACTION ON TURBOJET-ENGINE PERFORMANCE.I-ANALYTICAL METHOD OF PERFORMANCE EVALUATION WITH COMPRESSOR-OUTLET AIR BLEED

摘要

The performance of a turbojet engine with air bled off at the compressor outlet is analytically investigated. The analysis is based on the experimentally determined characteristics of the components of a typical axial-flow-type turbojet engine. Changes in the matching characteristics of the engine components and the change of the mass of working fluid within the cycle are accounted for in the analysis. A wide range of engine and flight conditions is covered and air bleeds from 0 to 15 percent of the air mass flow through the compressor are considered