The comparison of biodegradable hydraulic fluid with mineral oil on the basis of selected parameters

Abstract

Majdan R., Kosiba J., Tulík J., Kročková D., Šinský V., 2011. The comparison of biodegradable hydraulic fluid with mineral oil on the basis of selected parameters. Res. Agr. Eng., 57 (Special Issue): S43-S49.The paper presents a comparison of two fluids quality. The first one was mineral oil type UTTO which is commonly used in the transmission and hydraulic systems of agricultural tractors. The second one tested was biodegradable hydraulic fluid type ERTTO which could replace the toxic mineral oil. Both fluids were tested under the same test conditions using a special test device. The selected parameters of the hydrostatic pump were evaluated. The tests were evaluated according to the parameters describing the technical state of the hydrostatic pump as follows: flow efficiency, decrease of flow efficiency and cleanliness level of the fluid tested. This additional measurement verifies the test results. On the basis of the results achieved, we can state that the biodegradable hydraulic fluid exerts no harmful influence on the technical state of the hydrostatic pump. Therefore, the biodegradable fluid tested can be applied to the agricultural tractor. Has been demonstrated that the selected parameters are suitable for the evaluation of hydraulic fluid during its working performance. Therefore, these parameters will be used in the next examination of the fluid under operational conditions of an agricultural tractor.

Greening of Agricultural and Forestry Tractors

“…The fl ow characteristics of hydraulic pump were investigated at experimental laboratory equipment so the hydraulic pump was removed from tractor and then mounted on laboratory equipment. There was not found negative impact of the oil MOL Farm UTTO Synt for hydraulic pump operation located in hydraulic circuit of the tractor by fl ow characteristics measurements Tulik et al, 2013;Majdan et al, 2011). Measurements published in this article were executed directly on the tractor in verifying the fl ow characteristics of hydraulic pump but the conclusion is the same as these authors.…”

“…The fl ow effi ciency of the hydraulic pump was defi ned from measured values and their statistical processing by standardized normal distribution. Calculation of the fl ow effi ciency is based on the relationship (1) (Majdan et al, 2011). …”

“…At present, in most of the agricultural machinery, there are used conventional manufactured mineral liquids. In the case of unforeseen failure, in a very short time period, they are able to largely cause soil and water pollution (Majdan et al, 2011;Hujo et al, 2012). Therefore, the biodegradable fl uids on the synthetic and plant base are slowly pushing to forefront.…”

Temperature Dependence of Dynamic Viscosity and DSC Analysis of the Plantohyd samples

“…Tkáč et al (2008) suggested devices for tests of biodegradable hydraulic fluids destined for tractors. Other authors (Majdan et al, 2010, Majdan et al, 2011 described the methods for smart inspection of biodegradable transmission oil of tractor and they provided comparison of biodegradable hydraulic fluid with mineral oil on the basis of selected parameters. Test of biodegradable transmission and hydraulic fluid designed for agricultural tractors and study of ecological fluid properties under operational conditions of tractors were introduced in the works (Tkáč et al, 2012a, Tkáč et al, 2012b.…”

Possibility of Hydraulic Fluids With a Low Environmental Impact Application in Agriculture and Transport Machinery

“…However, this can be overcome with the use of additives and by modifying the fatty acid composition of the basestock (Kržan et al, 2010;Gustone et al, 2007). Structural limitations of naturally occurring basestocks restrict the application of vegetable oil hydraulic fluids to moderate temperatures (Schneider, 2006;Majdan et al, 2011;Tkáĉ et al, 2010).…”