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Lubricating base oil

Xem 1-12 trên 12 kết quả Lubricating base oil
  • The paper compares the simulation and experiment results of the lubricating oil temperature in the connecting-rod big end bearing. Simulating hydrodynamic lubrication for the connecting-rod big end bearing based on solving Reynolds equations, oil film thickness equations, load balancing equations and energy equations combined numerical lubrication simulation for the bearing by modeling thermal problems for oil films using finite element method.

    pdf6p vimelindagates 18-07-2022 1 1   Download

  • The results have shown the ester products yields have been significantly increased up to 93% with selectivity of 99% SFA-TMP tri-ester after the optimization process by using D-optimal design. The results for lubrication properties have shown that the SFA PFAD-based esters have low-temperature properties with pour points value in the range of 18–35 °C, flash point (270–310 °C), onset oxidative stability temperature (251–322 °C) and viscosity indices (115–131), respectively.

    pdf17p tudichquannguyet 29-11-2021 2 0   Download

  • This study applied diesel oil, and oil from two non-edible plant seeds which are Hura crepitans and Calophyllum inophyllum. These non-edible oils were extracted from their seeds using the soxhlet extractor and used in the oil-in-water emulsion mud.

    pdf16p lucastanguyen 01-06-2020 4 0   Download

  • This paper proposes an approach to determine the instability threshold for the internal gear motors and pumps based on the safe film thickness. By using the mobility method, the maximum eccentricity and the minimum oil lubrication film thickness can be determined, consequently, the minimum speed limit can be retrieved.

    pdf7p vistockholm2711 13-12-2019 7 0   Download

  • In this paper, a capacitive sensor based on printed circuit board was designed and fabricated to detect air bubbles that appear in the engine lubricating oil. A three-electrode capacitive sensor structure is designed and simulated for monitoring and estimating amount and size of air bubbles in oil.

    pdf9p jangni 13-04-2018 29 0   Download

  • Lubricants are segmented into Automotive, Industrial, Marines & Specialties (60% volume for global Automotive Lubricants). Products are blended to qualities established by SAE (Society of Automotive Engineers) and OEMs (Original Equipment Manufactures).

    pdf133p ntchung8894 18-02-2014 57 6   Download

  • Petroleum-based industrial products have gradually replaced products derived from biological materials. However, biologically based products are making a comeback--because of a threefold increase in farm productivity and new technologies. Biobased Industrial Products envisions a biobased industrial future, where starch will be used to make biopolymers and vegetable oils will become a routine component in lubricants and detergents.

    pdf162p mnemosyne75 02-02-2013 41 3   Download

  • The petrochemical industry is an important constituent in our pursuit of economic growth, employment generation and basic needs. It is a huge field that encompasses many commercial chemicals and polymers. This book is designed to help the reader, particularly students and researchers of petroleum science and engineering, understand the mechanics and techniques.

    pdf0p qsczaxewd 22-09-2012 72 14   Download

  • The most important function of lubricants is the reduction of friction and wear and in some cases, the relative movement of two bearing surfaces is only possible if a lubricant is present. In times when saving energy and resources and cutting emission have become central environmental matters, lubricants are increasingly attracting public awareness. Scientific research has shown that 0.4% of gross domestic product could be saved in terms of energy in Western industrialized countries if current tribological knowledge, i.e.

    pdf0p beobobeo 01-08-2012 74 16   Download

  • ● Adsorption chromatography • The stationary phase is an adsorbent (like silica gel or any other silica-based packing) • The separation is based on repeated adsorption-desorption steps. ● Normal-phase chromatography • The stationary bed is strongly polar in nature (e.g., silica gel), and the mobile phase is nonpolar (such as n-hexane or tetrahydrofuran). • Polar samples are retained on the polar surface of the column packing longer than less polar materials.

    pdf28p qdung92ct 03-07-2012 74 10   Download

  • Barrier methods are not yet out of fashion! In spite of well-known disadvantages, they all (notably condoms) provide useful protection against STIs. All users of this type of method should be informed about EC, in case of lack of use or failure in use. Vegetable- and oil-based lubricants, and the bases for many prescribable vaginal products, can seriously damage and lead to rupture of rubber: baby oil destroys up to 95% of a condom’s strength within 15 minutes.

    pdf10p lananhanh123 27-08-2011 57 6   Download

  • VACUUM DISTILLATION TOWER In order to further distill the residuum from the atmospheric tower at higher temperatures, reduced pressure is required to prevent thermal cracking. The process takes place in one vacuum distillation tower. The principles of vacuum distillation resemble those of fractional distillation and, except that larger-diameter columns are used to maintain comparable vapor velocities at the reduced pressures, the equipment is also similar.

    pdf6p vitconsieuquay 19-08-2011 292 140   Download

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