Исследование характеристик ступени центробежного компрессора, работающего на смесях газов

Abstract

Closed-Brayton power gas turbines (ZGTU) powered up to 10 kW with an external supply of heat is one of the ways of developing the distributed generation. The isolation from the atmosphere can be used in different operating ZGTU body, with a molecular weight of higher than of air, which leads to an increase in the size of impellers and increasing efficiency of entire installation. Creating ZGTU requires mining of critical components so experimental research is extremely difficult, due to the necessity of using a sealed stand equipment. The paper presents the verification of a numerical method of calculation of the radial-flow compressor characteristics from the experimentally obtained results. The characteristics of centrifugal compressor during the work on argon and helium-xenon mixture with a molecular weight of 39.95 kg/kmol and krypton. Has been made a comparison of characteristics on krypton at various balde diffusers.