Calculation procedures for oil free scroll compressors based on mathematical modelling of working process

9th International Conference on Compressors and their Systems

Paranin, Y.^1 ; Burmistrov, A.^2 ; Salikeev, S.^2 ; Fomina, M.^2

NIIturbocompressor N.a. V.B.Shnepp, 40 Sibirsky Trakt Str., Kazan, Russia^1

Kazan National Research Technological University, 68 K.Marx Str., Kazan, Russia^2

关键词: Adiabatic efficiency;    Calculation procedure;    Compressor characteristics;    Compressors characteristics;    Experimental values;    Mechanical interactions;    Working chambers;    Working process;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/90/1/012032/pdf
DOI  :  10.1088/1757-899X/90/1/012032

来源: IOP

【 摘 要 】

Basic propositions of calculation procedures for oil free scroll compressors characteristics are presented. It is shown that mathematical modelling of working process in a scroll compressor makes it possible to take into account such factors influencing the working process as heat and mass exchange, mechanical interaction in working chambers, leakage through slots, etc. The basic mathematical model may be supplemented by taking into account external heat exchange, elastic deformation of scrolls, inlet and outlet losses, etc. To evaluate the influence of procedure on scroll compressor characteristics calculations accuracy different calculations were carried out. Internal adiabatic efficiency was chosen as a comparative parameter which evaluates the perfection of internal thermodynamic and gas-dynamic compressor processes. Calculated characteristics are compared with experimental values obtained for the compressor pilot sample.