Experimental investigation on materials and lubricants for sliding-vane air compressors

9th International Conference on Compressors and their Systems

Murgia, Stefano^1 ; Valenti, Gianluca^2,3 ; Contaldi, Giulio^1 ; Valenti, Alessandro^3

Ing. Enea Mattei S.p.a., Strada Padana Superiore, 307, Vimodrone (MI)

20090, Italy^1

Politecnico di Milano, Dip. Energia, Via Lambruschini, 4A, Milano

20156, Italy^2

Valenti Energie S.r.l., Res. Mestieri Milano Due, Segrate (MI)

20090, Italy^3

关键词: Commercial lubricants;    Experimental investigations;    International standards;    Poly-alpha-olefins;    Positive displacement;    Rotary compressors;    Specific materials;    Volumetric flow rate;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/90/1/012039/pdf
DOI  :  10.1088/1757-899X/90/1/012039

来源: IOP

【 摘 要 】

Positive-displacement compressors and, among them, sliding-vane rotary machines are widely used in the compressed air sector. As in many other industrial fields, the efficient utilization of energy has become a major goal also in this sector. The aim of the present activity is the experimental investigation on the influence of two vanes materials (cast iron and aluminium with anodized surface) and of four commercial lubricants (characterized by different formulations and additives concentrations) on the performance of a mid-capacity sliding-vane rotary compressor in a number of operating pressures. The performance is identified by both the volume flow rate and the absorbed mechanical power, evaluated according to the international standard ISO 5167 and ISO 1217. The campaign indicates that the considered lubricants do not affect appreciably the volumetric flow rate. On the other hand, the specific lubricants determine a variation of about 1% of the mechanical power for both materials, while the specific material a variation between 0.9% and 2.6%. The best performance is achieved by aluminium vanes and a synthetic poly-α-olefin lubricant.