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2 Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka

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Up-to-date lubricating compositions in turbomachine-building and the technology of their manufacturing

100%

Kulagin V.

Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka

1999

tom nr 115

271--275

It is known that at the moments of start-up and halt of the centrifugal compressor there occur some extreme dynamic loads on its solid shaft that can result in negative effects in bearings (the occurrence of scratches on the shaft spindle and on the bearing inserts, etc.). A possible way to solve this problem can be the application of a lubricant with antiwear additives on the basis of ultra-dispersion materials (UDM).

Three-dimensional simulation of cavitation flow effects in pipleline system of turbomachines

63%

Likhachev D. , Kulagin V.

Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka

2008

tom nr 133

213--220

This paper presents a three-dimensional simulation of cavitation bubbles cloud effects on accessories and elements of compressor refrigerating installation, intermediate heat exchanger, as well as pumps and pumping stations. Bubbles appear on sections of these units due to fluid movement. Simulation has demonstrated high dependency of cavitation effects on a cavity shape. Thus, structural solutions subjected to change shapes of cavity can allow minimal cavitation effects on accessories, and elements of hydraulic equipment.