Экстраполяция экспериментально полученных напорных веток на характеристике компрессора

Experimental obtained compressor speed curve extrapolation method has been described. This method can be applied to calculated speed curve. Theoretical head rise nominal and maximal point determining method has been proposed using nomogram formation method. Graphic explanations extrapolation method has been demonstrated in general and particular cases for specific compressors. Method verification has been carried out for example low pressure compressors (already have been using for more than 5 years) at different rotating speed. Accomplished by authors analysis showed that stability loss of the compressor system (GTE or a compressor with a receiver and a nozzle at the stand) is corresponded with point on speed curve where isentropic head rise maximum is achieved. Results comparison has been carried out with known numerical and experimental engine´s characteristics.