Czasopismo | PRZEGLĄD PAPIERNICZY | Rocznik 2014 - zeszyt 9

Colour Measurement as a Tool for Monitoring Oil Quality

nr katalogowy: 86880

It is a fact that different chemical and physical factors affect the quality of oil and thus its performance in various uses. The number of factors contributing to the deterioration of quality increases over time and with use, and at times the quality of oil can drop quite suddenly. The first sign of quality change is often a change in the oil colour. Although oil colour alone is not necessarily a direct indication of the oil being damaged, the colour change is nevertheless a good indicator that the properties have changed and a more detailed analysis of the situation is required. Online colour measurement can be used to immediately detect changes in quality and take corrective measures before any damage occurs.Introduction Many factors are known to have a direct or indirect impact on the quality of oil. These factors may be associated with the oil manufacturing process or with changes in quality during use. Such factors includethe degree of refining, natural ageing of the oil, additives and their degradation and reactions, polymerisation, water, oxidisation, temperature, external chemical substances, metal and other particles detached from the system, dissolved gases, etc. The quality of oil and the changes in the quality have a key effect on oil performance in its intended use. In a worst-case scenario, oil of the wrong quality, or which has deteriorated, can cause expensive mechanical breakdowns and even bodily injury. That is why monitoring of oil quality and condition has become an important factor in nearly every branch of industry. A very diverse range of different measurement devices have been developed for this purpose, such as relative humidity and absolute water content indicators, particle calculators, dielectric sensors, oxidisation indicators (TAN value), viscosity meters and colour analysers. The operating principles of these devices are executed by many different technical solutions and the measurement methods rang[...]

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2014-9

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