Low Temperature Lubricant Rheology Measurement and Relevance to Engine Operation

Low Temperature Lubricant Rheology Measurement and Relevance to Engine Operation PDF Author: Robert B. Rhodes
Publisher: ASTM International
ISBN: 0803114389
Category : Automobiles
Languages : en
Pages : 190

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Book Description
Papers were presented at a symposium held in Austin, Texas, in December 1991. Subjects include a history of ASTM accomplishments in low temperature engine oil rheology from 1966-1992, critical aspects of pumping viscosity by mini-rotary viscometer, the scanning Brookfield technique of low temperatur

Low Temperature Lubricant Rheology Measurement and Relevance to Engine Operation

Low Temperature Lubricant Rheology Measurement and Relevance to Engine Operation PDF Author: Robert B. Rhodes
Publisher: ASTM International
ISBN: 0803114389
Category : Automobiles
Languages : en
Pages : 190

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Book Description
Papers were presented at a symposium held in Austin, Texas, in December 1991. Subjects include a history of ASTM accomplishments in low temperature engine oil rheology from 1966-1992, critical aspects of pumping viscosity by mini-rotary viscometer, the scanning Brookfield technique of low temperatur

The Rheology of Lubricants

The Rheology of Lubricants PDF Author: T. C. Davenport
Publisher:
ISBN:
Category : Lubrication and lubricants
Languages : en
Pages : 168

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Book Description


High Pressure Rheology for Quantitative Elastohydrodynamics

High Pressure Rheology for Quantitative Elastohydrodynamics PDF Author: Scott S. Bair
Publisher: Elsevier
ISBN: 0080475302
Category : Technology & Engineering
Languages : en
Pages : 262

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Book Description
Computational elastohydrodynamics, a part of tribology, has existed happily enough for about fifty years without the use of accurate models for the rheology of the liquids used as lubricants. For low molecular weight liquids, such as low viscosity mineral oils, it has been possible to calculate, with precision, the film thickness in a concentrated contact provided that the pressure and temperature are relatively low, even when the pressure variation of viscosity is not accurately modelled in detail. Other successes have been more qualitative in nature, using effective properties which come from the fitting of parameters used in calculations to experimental measurements of the contact behaviour, friction or film thickness. High Pressure Rheology for Quantitative Elastohydrodynamics is intended to provide a sufficiently accurate framework for the rheology of liquids at elevated pressure that it may be possible for computational elastohydrodynamics to discover the relationships between the behaviour of a lubricated concentrated contact and the measurable properties of the liquid lubricant. The required high-pressure measurement techniques are revealed in detail and data are presented for chemically well-defined liquids that may be used as quantitative reference materials.* Presents the property relations required for a quantitative calculation of the tribological behaviour of lubricated concentrated contacts.* Details of high-pressure experimental techniques.* Complete description of the pressure and temperature dependence of viscosity for high pressures.* Some little-known limitations on EHL modelling.

Oil Flow Studies at Low Temperatures in Modern Engines

Oil Flow Studies at Low Temperatures in Modern Engines PDF Author: Hal Shaub
Publisher: ASTM International
ISBN: 0803128576
Category : Internal combustion engines
Languages : en
Pages : 174

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Book Description
Scientists and engineers consider how the lower starting temperature of new engine designs will impact the flow of oil through them, and how new oil can be developed to address the changes. Seven of the 11 papers, presented to a June 1999 symposium in St. Louis, Missouri, report on a study by a comm

Rheology and Elastohydrodynamic Lubrication

Rheology and Elastohydrodynamic Lubrication PDF Author: B.O. Jacobson
Publisher: Elsevier
ISBN: 0080875831
Category : Science
Languages : en
Pages : 399

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Book Description
This book gives a thorough overview on recent developments in lubricant rheology, elastohydrodynamic lubrication and the effects of surface roughness and particulate contamination in the lubricant on the overall behaviour of a heavily loaded lubricated contact. One of the aims of the book is to make clear to the reader that a Newtonian model for the lubricant behaviour does not have enough degrees of freedom to be able to describe the friction - traction behaviour of heavily loaded lubricated contacts or the oil film build-up and collapse under surface asperities for rough surfaces. The book contains quite a lot of experimental data of lubricants at high pressures, both solidification pressures, compressibilities and shear strength increase coefficients, which make it possible to estimate the friction and power loss in heavily loaded lubricated contacts for different pressures, temperatures, sliding speeds, and lubricant types. This is the first time that data of this type has been included in a textbook and it is hoped that the questions highlighted will serve to initiate and guide future research in this field.

Grease Lubrication in Rolling Bearings

Grease Lubrication in Rolling Bearings PDF Author: Piet M. Lugt
Publisher: John Wiley & Sons
ISBN: 1118353919
Category : Technology & Engineering
Languages : en
Pages : 472

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Book Description
The definitive book on the science of grease lubrication for roller and needle bearings in industrial and vehicle engineering. Grease Lubrication in Rolling Bearings provides an overview of the existing knowledge on the various aspects of grease lubrication (including lubrication systems) and the state of the art models that exist today. The book reviews the physical and chemical aspects of grease lubrication, primarily directed towards lubrication of rolling bearings. The first part of the book covers grease composition, properties and rheology, including thermal and dynamics properties. Later chapters cover the dynamics of greased bearings, including grease life, bearing life, reliability and testing. The final chapter covers lubrications systems – the systems that deliver grease to the components requiring lubrication. Grease Lubrication in Rolling Bearings: Describes the underlying physical and chemical properties of grease. Discusses the effect of load, speed, temperature, bearing geometry, bearing materials and grease type on bearing wear. Covers both bearing and grease performance, including thermo-mechanical ageing and testing methodologies. It is intended for researchers and engineers in the petro-chemical and bearing industry, industries related to this (e.g. wind turbine industry, automotive industry) and for application engineers. It will also be of interest for teaching in post-graduate courses.

Lubricant Additives

Lubricant Additives PDF Author: Leslie R. Rudnick
Publisher: CRC Press
ISBN: 1420059653
Category : Science
Languages : en
Pages : 796

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Book Description
Cost, environmental, and performance issues coupled with legislative changes, new engine oil requirements, and technology development for exploration of space and the oceans are changing the lubrication additive market. Reflecting how the need for new applications drives the development of new lubricant additives, Lubricant Additives: Chemistry and Applications, Second Edition presents methods to: Improve the performance, efficiency, and stability of lubricants Protect metal surfaces from wear Select lubricant additives for the food processing industry Select the most appropriate ashless additives Avoid microbial degradation of lubricants Lower toxicity And describes: Standard lubricant testing methods and product specifications Mechanisms and benefits of specific types of lubricant additives Recent industry trends Up-to-Date Coverage of Lubricant Additive Chemistry and Technology Addressing new trends in various industrial sectors and improvements in technology, this second edition provides detailed reviews of additives used in lubricant formulations, their chemistry, mechanisms of action, and trends for major areas of application. It explores the design of cost-effective, environmentally friendly lubricant technologies and lubricants for automotive, industrial, manufacturing, aerospace, and food-processing applications. An extensive list of online industry resources is available for download at crcpress.com.

Rheology

Rheology PDF Author: Alexander Y. Malkin
Publisher: Elsevier
ISBN: 1927885949
Category : Technology & Engineering
Languages : en
Pages : 537

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Book Description
Rheology: Concepts, Methods, and Applications, Fourth Edition provides a thorough historical and theoretical grounding in the field and introduces rheology as the method for solving many practical problems in materials science and engineering. This new edition has been updated to include new evidence-based methods and applications, coverage of non-Newtonian properties and their effect on material processing, heterogeneity in flow, rheology of highly concentrated emulsions and suspensions, viscosity and viscoelastic behavior of nanocomposites, the behavior of supramolecular solutions, rheology of gels, deformation-induced anisotropy, conformation changes during flow and molecular orientation. The book is practical and relevant for industry, but also consistent with rheology courses in academia, making it relevant to both academics and accomplished rheologists in industry. - Includes updates on non-Newtonian properties and their effect on material processing, heterogeneity in flow, rheology of concentrated emulsions, suspensions, and more - Discusses viscosity and viscoelastic behavior of nanocomposites, the behavior of supramolecular solutions, rheology of gels, deformation-induced anisotropy, conformation changes during flow, and molecular orientation - Covers theory backed by practical examples, methods of measurement and raw data treatment, and various applications

Highway Safety Literature

Highway Safety Literature PDF Author:
Publisher:
ISBN:
Category : Highway research
Languages : en
Pages : 962

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Book Description


The Biodiesel Handbook

The Biodiesel Handbook PDF Author: Gerhard Knothe
Publisher: Elsevier
ISBN: 0983507260
Category : Science
Languages : en
Pages : 516

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Book Description
The second edition of this invaluable handbook covers converting vegetable oils, animal fats, and used oils into biodiesel fuel. The Biodiesel Handbook delivers solutions to issues associated with biodiesel feedstocks, production issues, quality control, viscosity, stability, applications, emissions, and other environmental impacts, as well as the status of the biodiesel industry worldwide. - Incorporates the major research and other developments in the world of biodiesel in a comprehensive and practical format - Includes reference materials and tables on biodiesel standards, unit conversions, and technical details in four appendices - Presents details on other uses of biodiesel and other alternative diesel fuels from oils and fats