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Wednesday, May 20, 2020 | History

3 edition of A preliminary study on the vapor/mist phase lubrication of a spur gearbox found in the catalog.

A preliminary study on the vapor/mist phase lubrication of a spur gearbox

Wilfredo Morales

A preliminary study on the vapor/mist phase lubrication of a spur gearbox

by Wilfredo Morales

  • 58 Want to read
  • 39 Currently reading

Published by National Aeronautics and Space Administration, Lewis Research Center, U.S. Army Research Laboratory, National Technical Information Service, distributor in [Cleveland, Ohio], Springfield, VA .
Written in English

    Subjects:
  • Lubricants.,
  • Organic phosphorus compounds.,
  • Transmissions (Machine elements),
  • Vapor phase lubrication.,
  • Lubrication systems.

  • Edition Notes

    Other titlesPreliminary study on the vapor, mist phase lubrication of a spur gearbox., Vapor, mist phase lubrication of a spur gearbox.
    StatementWilfredo Morales, Robert F. Handschuh.
    Series[NASA technical memorandum] -- NASA/TM-1999-208833., ARL-TR -- 1912., NASA technical memorandum -- 208833.
    ContributionsHandschuh, Robert F., Lewis Research Center., U.S. Army Research Laboratory.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL15550572M

    Evaluation of Vapor Intrusion from a Subsurface Diesel Plume Using Multiple Lines of Evidence John A. Connor, Farrukh Ahmad, and Thomas E. McHugh Groundwater Services, Inc, Norfolk, Suite , Houston, Texas, Abstract Vapor intrusion from . Vapor Intrusion: The Science u What is vapor intrusion and why do we care? u What physical, chemical, and biological factors influence vapor migration from source to building? u How can our understanding of the key factors influencing vapor intrusion File Size: 2MB.

    The objective of the present chapter is to study vapor power plants in which the working fluid is alternately vaporized and condensed. Chapter 9 is concerned with gas turbines and internal combustion engines in which the working fluid remains a gas. chapter objective Modeling Vapor Power SystemsFile Size: 1MB. Source Vapor Concentration 73 Soil Vapor Permeability 74 Rise of and Diffusion Across the Capillary Zone 74 Diffusive and Convective Transport into the Structure 75 6. Interpretation of Results 77 Appendices A. User’s Guide for Non-Aqueous Phase Liquids A-1 B. Chemical Properties Lookup Table and References B

    This volume, Preliminary Design, is Part One of a three-part Engineering Design Handbook titled Helicopter Engineering. design, Qualification Assurance, this part is intended to set forth explicit design standards for Army helicopters, to establish qualification requirements, and to provide technical guidance to helicopter designers in both the industry and within the Army.   Introduction. Other reviews of vapor intrusion (VI) models for volatile organic chemicals (VOCs) have been published in recent years (1–3).This present review seeks to provide a comprehensive overview of vapor intrusion models that deal with non-radon vapor intrusion, highlighting particularly the differences between one, two and three-dimensional models, and extending coverage to modeling Cited by:


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A preliminary study on the vapor/mist phase lubrication of a spur gearbox by Wilfredo Morales Download PDF EPUB FB2

Used to vapor/mist phase lubricate a spur gearbox in a preliminary study. INTRODUCTION Klaus, Lai, and Graham (refs. 1 and 2), laid the foundation for high temperature vapor phase lubrication studies when they used tributyl phosphate (TBP) and tricresyl phosphate (TCP) vapors, delivered in.

Get this from a library. A preliminary study on the vapor/mist phase lubrication of a spur gearbox. [Wilfredo Morales; Robert F Handschuh; Lewis Research Center.; U.S. Army Research Laboratory.]. Experimental results have indicated that the initial formation of an iron phosphate film on a rubbing ferrous surface, followed by the growth (by cationic diffusion) of a lubricious pyrophosphate-type coating over the iron phosphate, is the reason organophosphates work well as vapor/mist phase : Wilfredo Morales and Robert F.

Handschuh. A new organophosphate formulation was developed which circumvents surface iron depletion. This formulation was tested by generating an iron phosphate coating on an aluminum surface. The new formulation was then used to vapor/mist phase lubricate a spur gearbox in a preliminary study.

at temperatures above °C; hence, another form of lubrication is necessary. Vapor or mist phase reaction lubrication is a unique, alternative technology for high temperature lubrication. The majority of past studies have employed a liquid phosphate ester that was vaporized or misted, and delivered toCited by: 7.

Morales W, Handschuh RF () A preliminary study on the vapor/mist phase lubrication of a spur gearbox. Lubr Eng 56(9)– Google ScholarAuthor: Jihua Chang, Shaojun Liu, Xiaozhou Hu, Yu Dai. In these prior tests, many aspects were considered including run-dry conditions, vapor-mist lubrication, grease lubrication, test gearbox drainage, and shrouding.

These test results indicated that testing in a relevant environment was essential for the generation of useful test results. This formulation was tested by generating an iron phosphate coating on an aluminum surface.

The new formulation was then used to vapor/mist phase lubricate a spur gearbox in a preliminary study. Vapor-Phase Lubrication for High Temperature Bearings.

Cite this entry as: () Vapor Phase Deposition Lubrication. In: Wang Q.J., Chung YW. Vapor phase lubrication (VPL) is an emerging technology that is currently targeted for application in limited life, expendable engines. It has the potential to cut 90 percent of the cost and weight of the lubrication system, when compared to a conventional liquid lubricated by: A Simple Experiment for Determining Vapor Pressure and Enthalpy of Vaporization of Water Gerald S.

Levinson City College of San Francisco The concept of vapor pressures of liquids is discussed in most general chemistry courses. The Clausius-Clapeyron equation. In these prior tests many aspects were considered, including run-dry conditions, vapor-mist lubrication, grease lubrication, test gearbox drainage, and shrouding.

These results indicated that testing in a relevant environment was essential for the generation of useful results; therefore the current test arrangement evolved to represent an aerospace environment. Anthony JohnsonE,FHEA, Andrew GibsonCIM, MIEx, in Sustainability in Engineering Design, Lubrication.

During the design of mechanical parts, a good deal of emphasis is placed on tolerances, surface finish, and seal and bearing selection, but often lubrication of the moving parts is left until last, almost as an afterthought. Large positive deviations from Raoult’s law can result in minimum-boiling azeotrope (Fig.

1-(b)) while large negative deviations can lead to maximum-boiling azeotrope (Fig. 1-(c)). In such systems, there exists a particular composition at which both of the liquid phase and the vapor phase have the same composition.

Civil Engineering may not get as much attention as other STEM disciplines but it’s an important area of study if you want to work on the design, construction and maintenance of civil projects like roadways, bridges and buildings. Learn about the best colleges for a civil engineering degree. A preliminary front-end engineering design (FEED) study has been undertaken for a possible first U.K.

phase of such a network (shown in the figure as segment A), which envisages a km, m diameter trunk line, initially delivering 5 Mt-CO 2 per year from a number of U.K. east coast capture sites to North Sea EOR projects. Preliminary fluid flow, thermal fields, and mass transport results predicted through computational fluid dynamic simulations will be discussed.

REFERENCES. Morales, W. and Handschh R.F., “A Preliminary Study on the Vapor/Mist Phase Lubrication of a Spur Gearbox”, Lubrication Engineering, Sept.

vol. 56, no. 9, pp. Keywords Vapor phase lubrication High-temperature tribology Solid lubrication 1 Introduction High-temperature lubrication continues to be a limitation for a wide variety of applications. In power generation, for example, there are tremendous efficiency gains that can be realized only if the operating temperatures are raised.

The. Vapor phase lubrication has been investigated as a method of lubricating the piston ring/liner interface of low heat rejection engines. Tests were run in a single cylinder engine which contained several ceramic components. One test was run with vapor phase lubrication using tricresyl phosphate and tCited by: 2.

UNCORRECT ED PROOF 1 ORIGINAL PAPER 2 High-Temperature Vapor Phase Lubrication Using Carbonaceous 3 Gases 4 Nicolas Argibay James H. Keith Brandon A. Krick 5 D. Hahn Gerald R. Bourne W. Gregory Sawyer 6 Received: 5 August /Accepted: 25 August 7 Springer Science+Business Media, LLC 8 Abstract Following the pioneering work of Prof.

James. The companies using oil mist lubrication see the mean-time-between-repair (MTBR) increase from 24 to 36 months up to 48 to 60 months.

With the average repair cost per pump between $5, and $10, the reduced repair costs attributed to oil mist lubrication can have a dramatic impact on a refinery’s bottom line.

Oil mist lubrication Author: Don Ehlert.Start studying Lubrication. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Start a free trial of Quizlet Plus by Thanksgiving | Lock in 50% off all year Try it free.Oil-mist lubrication is said to reduce bearing failures by up to ninety percent.

This book describes the process for the benefit of plant managers and maintenance engineers. It explains how the low application and consumption rates eliminate the need for a circulating system, while reducing manufacturing, installation, and clean-up costs.