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9 Condition-Based Maintenance Techniques
Published in Jesús R. Sifonte, James V. Reyes-Picknell, Reliability Centered Maintenance-Reengineered, 2017
Jesús R. Sifonte, James V. Reyes-Picknell
Oil additives help to control base oil oxidation, prevent rust and corrosion from occurring, prevent foaming and aeration, and prevent wear. As such, additive health is critical to proper lubricant function. Additive health can be measured using specific oil analysis tests that compare additive content from in-service oil samples with a representative new oil sample and should be included as part of routine oil analysis of large sump systems. Oil changes and regreasing schedules should be set to ensure that fresh oil or grease is applied in advance of additive breakdown or depletion. In rare cases, catastrophic additive depletion can occur through sudden water ingress or overaggressive filtration, both of which should be monitored carefully.
Additives and Mechanism of Effectiveness
Published in Wilfried J. Bartz, Engine Oils and Automotive Lubrication, 2019
An engine oil additive is defined as a material designed to enhance or to impart the performance properties of the base stock. Usually they are materials that have been chemically synthesized to supply the desired performance features. Individual additives are used at concentration levels ranging from several parts per million to greater than 10 volume percent (1).
Investigating the EKC hypothesis with nanotechnology, renewable energy consumption, economic growth and ecological footprint in G7 countries: panel data analyses with structural breaks
Published in Energy Sources, Part B: Economics, Planning, and Policy, 2023
Mucahit Aydin, Pınar Koc, Kadriye Izgi Sahpaz
The production, distribution, and storage of hydrogen fuel costs decrease. Nanotechnological applications for thermoelectricity (TE) waste heat recovery devices decrease energy consumption. These devices reduce oil consumption. Therefore, they have a shallow impact on environmental degradation (Brinker and Ginger 2010). Subramani et al. (2011) stated that carbon nanotubes provide lower energy consumption than conventional seawater reverse osmosis desalination. Tan et al. (2012) explained the impact of nanomaterials on the environment. They stated the following notations; Devices with carbon nanotubes reduce fuel consumption by making airplanes and vehicles lighter.If nano-scale carbon black adds to modern automobile tires cause it reinforces the material and decreases rolling resistance. This system yields about 10% in fuel savings.Nanotribological motor oil additives decrease the fuel consumption of transportation vehicles and extend engine life.Nanoporous insulating materials can help to reduce the energy needed to heat buildings.
Synthesis and performance evaluation of vegetable oil polymer as a multifunctional lube oil additive
Published in Petroleum Science and Technology, 2018
Sujit Talukdar, Mahua Upadhyay, Pranab Ghosh
Engine oil is basically a combination of base oil and additives. Additives are chemical compounds necessary to provide performance beyond what base oils alone are able to offer. Base oils can be considered as a carrier for the additive.The manufacturer of many different oils can utilize the same base stock for each formulation and can choose different additives for each specific application. Nearly all commercial motor oils contain additives, whether the oils are synthetic or petroleum based. Oil additives are vital for the proper lubrication and prolonged use of motor oil in modern internal combustion engines. Without many of these, the oil would become contaminated, break down, leak out, or not properly protect engine parts at all operating temperatures.