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Work Turbochargers under Reduced Pressure in the Suction Pipe
Engineering Education # 12, December 2014
DOI: 10.7463/1214.0739206
pp. 339–349
The Study of Vibration Processes in Oil Flooded Screw Compressors
Engineering Education # 10, October 2014
DOI: 10.7463/1014.0729650
Capacity regulation of screw compressors
Engineering Education # 09, September 2013
DOI: 10.7463/0913.0596092
Nowadays various methods of capacity regulation are or may be applied to screw compressors (SC). This paper presents research results of two methods: changing rotation frequency of the driving engine’s shaft and restriction of air in the suction passage. Comparative analysis of the research results allows to select the most suitable method for any particular case. Exergy efficiency coefficient was chosen as an economical operation criterion; this coefficient allows to estimate the degree of thermodynamic perfection of the screw compressor quantitively, when using various regulation methods.
77-30569/260341 Mathematical modeling of screw oil-filled compressor’s working processes
Engineering Education # 01, January 2012
Nowadays there is no method reliable enough to calculate the set of important screw oil-filled compressor parameters analitically, in particular, parameters of inner compression and injection. The results of the survey, included in the article, have allowed creating a mathematical model of different processes, taking place in screw oil-filled compressor, and developing the methods for the calculating of inner compression and injection parameters. The comparative analysis of theoretical and experimental results showed good correlation between each other, that means this method can be recommended for the forecasting of the compressor working mode and calculating the basic parameters of this mode.
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