Author: H. K. Zobel
Publisher:
ISBN:
Category : Acid number
Languages : en
Pages : 11
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Book Description
Traditionally, long established oxidation tests such as TOST (ASTM D 943-03) and RPVOT (ASTM D 2272-02) in combination with the acid number (ASTM D 974-03) test has been used to screen the oxidation stability of turbine oils. Lately, nevertheless, a new voltammetric method has been applied to measure the remaining useful life (RUL) of turbine oils, RULERTM (ASTM D 6971-03) as it uses microlitre amounts of sample and needs only a short testing time. The aim of this study is to examine the correlation between the RULERTM voltammetric test in comparison to the standing oxidation turbine methods, TOST and RPVOT.Three fully formulated commercially available oils were studied; two were based on synthetic esters and one was mineral oil based. In addition, other oils were tested in our laboratories in Norway and Sweden in order to investigate the correlation between RULERTM and RPVOT oxidation stability tests. Field samples were also used to evaluate those methods.Although those studies have been worthwhile, reaching a definite conclusion regarding correlations has proven to be somewhat difficult. It is clear, however, that by a careful methodology, a useful correlation for the investigated oil types may be obtained. For example, guide limits for RULERTM results and their correlation to RPVOT values were established.
Author: M. Pach
Publisher:
ISBN:
Category : Acid number
Languages : en
Pages : 11
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Book Description
Traditionally, long established oxidation tests such as TOST (ASTM D 943-03) and RPVOT (ASTM D 2272-02) in combination with the acid number (ASTM D 974-03) test has been used to screen the oxidation stability of turbine oils. Lately, nevertheless, a new voltammetric method has been applied to measure the remaining useful life (RUL) of turbine oils, RULERTM (ASTM D 6971-03) as it uses microlitre amounts of sample and needs only a short testing time. The aim of this study is to examine the correlation between the RULERTM voltammetric test in comparison to the standing oxidation turbine methods, TOST and RPVOT. Three fully formulated commercially available oils were studied; two were based on synthetic esters and one was mineral oil based. In addition, other oils were tested in our laboratories in Norway and Sweden in order to investigate the correlation between RULERTM and RPVOT oxidation stability tests. Field samples were also used to evaluate those methods. Although those studies have been worthwhile, reaching a definite conclusion regarding correlations has proven to be somewhat difficult. It is clear, however, that by a careful methodology, a useful correlation for the investigated oil types may be obtained. For example, guide limits for RULERTM results and their correlation to RPVOT values were established.
Author: Peter W. R. Smith
Publisher:
ISBN:
Category : Antioxidant
Languages : en
Pages : 6
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Book Description
This paper outlines some of the significant changes in turbine oil oxidative stability requirements over the past five to ten years, and illustrates how these have been met using mineral oil-based products with differing antioxidant systems. It also considers possible future requirements and how these may be met. Use of a modified Federal Test Method 5308, and ASTM tests D 2272, D 4310, and D 943 in formulating new turbine oils and evaluating their oxidative stability is also described and contrasted. An example of oil condition monitoring on a used turbine oil from the field to assess its oxidative degradation is also given.
Author: Committee C Staff
Publisher: ASTM International
ISBN:
Category : Gas-turbines
Languages : en
Pages : 121
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Author:
Publisher: ASTM International
ISBN:
Category :
Languages : en
Pages : 315
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Book Description
Author:
Publisher:
ISBN:
Category : Weights and measures
Languages : en
Pages : 964
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Book Description
Author: British Standards Institution
Publisher:
ISBN: 9780580082948
Category : Turbines
Languages : en
Pages : 14
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Book Description
Author: Leslie R. Rudnick
Publisher: CRC Press
ISBN: 1351646966
Category : Science
Languages : en
Pages : 1432
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Book Description
This indispensable book describes lubricant additives, their synthesis, chemistry, and mode of action. All important areas of application are covered, detailing which lubricants are needed for a particular application. Laboratory and field performance data for each application is provided and the design of cost-effective, environmentally friendly technologies is fully explored. This edition includes new chapters on chlorohydrocarbons, foaming chemistry and physics, antifoams for nonaqueous lubricants, hydrogenated styrene–diene viscosity modifiers, alkylated aromatics, and the impact of REACh and GHS on the lubricant industry.
Author: Heinz P. Bloch
Publisher: The Fairmont Press, Inc.
ISBN: 0881735809
Category : Technology & Engineering
Languages : en
Pages : 480
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Book Description
Completely revised, this new edition includes the latest material on oil analysis, the energy conservation aspects of lube oil application and selection and bearing protector seals. Information on synthesized hydrocarbons and oil mist lubrication is thoroughly revised. It addresses the full scope of industrial lubricants, including general purpose oils, hydraulic fluids, food-grade and environmentally friendly lubricants, synthetic lubricants, greases, pastes, waxes and tribosystems. Detailed coverage is provided on lubrication strategies for electric motor bearings, gear lubrication, compressors and gas engines, and steam and gas turbines. Other topics include proper lubricant handling and storage, as well as effective industrial plant oil analysis practices.
