Abstract
This article presents the results of measuring the calorific value and the rheological characteristics of Plantohyd bio lubricants. Measurements were conducted under laboratory conditions with an IKA C5000 calorimeter and a DV-3P Anton Paar digital viscometer. Results are presented graphically. It is shown that the physical interpretation of energy values results and the dependence of rheological properties on temperature can be used to assess the quality of lubricants.
Highlights
Biofuels and bio lubricants are widely entering the market, especially the liquid fuel market
Plantohyd lubricants are products based on synthetic esters, providing an alternative to petroleum-based hydraulic oils (e.g. [1])
The physical interpretation of the results of energy values and the dependence of rheological properties on temperature can be used to assess the quality of lubricants
Summary
Biofuels and bio lubricants are widely entering the market, especially the liquid fuel market. Biofuels and bio lubricants are compatible with existing engines and vehicles, but produced from organic material (waste agricultural products, sunflower, rapeseed oil, etc.). They are far more environment-friendly, whereas they are capable of producing similar energy values with ordinary fuels. Plantohyd hydraulic lubricants are suitable for all mobile and stationary hydraulic equipment in vehicles and industry Their use is recommended especially when there is a danger of leakage of hydraulic and lubricating oisl in soil, groundwater or surface water. To maintain their production properties, they must be used independently and not in combination with petroleumbased oils. Measurement methods of thermophysical properties and their theoretical principles can be found in [2,3,4,5]
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