ANALYSIS OF THRUST AUGMENTATION OF TURBOJET ENGINES BY WATER INJECTION AT COMPRESSOR INLET INCLUDING CHARTS FOR CALCULATING COMPRESSION PROCESSES WITH WATER INJECTION

摘要

A psychometric chart haring total pressure (sum of partial pressures of air and water vapor) as a variable, a Mollier diagram for air saturated with water vapor, and charts showing the thermodynamic properties of various air-water vapor and various gas-water caper mixtures are presented as aids in calculating the thrust augmentation of a turbojet engine resulting from the injection of water at the compressor inlet.nWater infection therefore tends to overcome the loss in take-off thrust normally occurring at high ambient temperatures. For very high atmospheric relative humilities, the ambient temperature had only a small effect on the augmented thrust ratio.