EFFECT OF APPLYING FLUSHING FLUID ON LUBRICITY PROPERTIES OF REFRIGERANT COMPRESSOR OILS
Journal Title: Tribologia - Year 2017, Vol 272, Issue 2
Abstract
here has currently been a dynamic return to applying natural refrigerants such as hydrocarbons. They are substances containing neither fluorine nor chlorine, which contribute to the enlargement of the ozone hole and the greenhouse effect. However, hydrocarbons are the substances from the A3 safety group (flammable) and, at present, are mainly used in appliances of low efficiency. The most widely used refrigerant in this category of appliances is R600a (isobutene). While repairing refrigeration appliances, there is often the need to remove the refrigerant and compressor oil from the system. Any impurities in the system are also removed. Should incorrect removal of the used oil from the installation occur, there is the risk that a certain amount of the oil and flushing fluid shall remain in the refrigeration system. The article presents an evaluation of the effect of a flushing fluid for refrigeration systems on lubricity properties of compressor oils. The article also describes the research on the use of R600a, a mineral oil of VG ISO 32 and commercially available FF1 flushing fluid, for refrigeration systems. The evaluation was made on the basis of the sample wear volume in the block-on-ring node under the conditions similar to compressor exploitation following a longer shut-off period. Three different lubricants were compared: a mixture of mineral oil with FF1 flushing fluid for refrigeration systems in the amount 20% by volume, a mixture of mineral oil with FF1 flushing fluid for refrigeration systems in the amount 50% by volume, and a mixture of mineral oil with FF1 flushing fluid for refrigeration systems in the amount 50% by volume with R600a.
Authors and Affiliations
Kacper GÓRNY, Arkadiusz STACHOWIAK, Przemysław TYCZEWSKI, Wiesław ZWIERZYCKI
Keywords
Related Articles
- EP ID EP239680
- DOI -
- Views 100
- Downloads 0
BADANIA ZUŻYCIA SŁUPKÓW W KORONKACH WIERTNICZYCH DO WIERCENIA OTWORÓW STRZAŁOWYCH
W artykule przedstawiono rezultaty badań zużycia słupków w wybranych typach koronek wiertniczych o średnicy 95 mm stosowanych do wierceń otworów strzałowych w górnictwie skalnym. Celem badań było ustalenie rodzaju zużyci...
BUILDING A FORMULA FOR A COMPOSITE FRICTION MATERIAL FOR BRAKES
Composite friction materials used today contain over 20 components. Asbestos and lead has been eliminated from their contents. New formulas contain no mercury, cadmium, antimony, and chrome VI. Friction materials are des...
IDENTIFICATION OF TRIBOLOGICAL PROCESSES IN THE RESEARCH OF AN INNOVATIVE DESIGN PLANETARY GEAR THROUGH THE USE OF THERMAL IMAGING METHODS
The paper presents the problem of the use of thermal imaging methods for indirect identification of temperature fields generated in the tribological nodes, such as bearing and meshing, during bench testing of an innovati...
Modelling the trochoidal gearing with respect to the uniform teeth wear
W referacie przedstawiono model teoretyczny zmodyfikowanego zazębienia trochoidalnego, które jest stosowane w pompach systemu Gerotor. Pompy Gerotor należą do maszyn wirujących, których kinematyka oparta jest na zasadzie...
OPTIMIZATION OF THE ADDITIVES CONTENT IN MODEL LUBRICANTS
The paper discusses the research on the influence of selected commercial lubricating additives on the ability of the lubricant based on SAE 30/95 to prevent scuffing. The research was done using the T-02 four-ball appara...