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Article
Publication date: 19 November 2018

Lei Shao, Shiyu Feng, Chaoyue Li, Weihua Liu and Xuying Huang

This paper aims to improve the previous fuel scrubbing model and find out the relationship between bubble diameter and scrubbing efficiency (ƞ).

Abstract

Purpose

This paper aims to improve the previous fuel scrubbing model and find out the relationship between bubble diameter and scrubbing efficiency (ƞ).

Design/methodology/approach

A fuel tank scrubbing test bench was established to verify the accuracy of this model. Ullage and dissolved oxygen concentration were measured, and images of bubble size and distribution were collected and analyzed using image analysis software.

Findings

The bubble diameter has a great influence on ullage and dissolved oxygen concentration during the fuel scrubbing process. The scrubbing efficiency (ƞ) has an exponential relationship with bubble diameter and decreases rapidly as the bubble diameter increases.

Practical implications

The variation of the ullage and dissolved oxygen concentration predicted by this model is more accurate than that of the previous model. In addition, the study of bubble size can provide a guidance for the design of fuel scrubber.

Originality/value

This study not only improves the previous fuel scrubbing model but also develops a method to calculate scrubbing efficiency (ƞ) based on bubble diameter. In addition, a series of tests and analyses were conducted, including numerical calculation, experiment and image analysis.

Details

Aircraft Engineering and Aerospace Technology, vol. 91 no. 2
Type: Research Article
ISSN: 1748-8842

Keywords

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Article
Publication date: 1 April 1998

Abstract

Details

Aircraft Engineering and Aerospace Technology, vol. 70 no. 2
Type: Research Article
ISSN: 0002-2667

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Article
Publication date: 1 August 1975

ICI Petrochemicals Division has appointed the Cargo Fleet Chemical Co. Ltd. (CFC) of Harrogate as official U.K. distributor for the Ethoxol and Diethoxol range of glycol…

Abstract

ICI Petrochemicals Division has appointed the Cargo Fleet Chemical Co. Ltd. (CFC) of Harrogate as official U.K. distributor for the Ethoxol and Diethoxol range of glycol ethers and glycol ether acetates which are produced at Billingham.

Details

Pigment & Resin Technology, vol. 4 no. 8
Type: Research Article
ISSN: 0369-9420

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Article
Publication date: 1 April 1999

L. Zou, M. Duˇsek, C.P. Hunt and B.D. Dunn

The efficiency of cleaning of flux residues after various periods of ageing was assessed by measuring the ionic contamination removed in an Ionograph 500 SMD. The flux…

Abstract

The efficiency of cleaning of flux residues after various periods of ageing was assessed by measuring the ionic contamination removed in an Ionograph 500 SMD. The flux residues were removed from bare boards, and boards with through hole and surface mount components. The effect of different ageing temperature was also investigated. The work has shown that there is a maximum time interval following assembly during which cleaning should be carried out. The ionic contamination of aged assemblies with through hole and surface mount components were cleaned with varying efficiencies. The surface mount components were more difficult to clean. The use of brushing and scrubbing proved particularly beneficial for the through hole components. A proprietary cleaner proved more effective than the generic alternatives considered.

Details

Soldering & Surface Mount Technology, vol. 11 no. 1
Type: Research Article
ISSN: 0954-0911

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Article
Publication date: 1 June 1958

THE bulk of our hospitals, etc., were built about a century ago and when examined in the light of present‐day needs and future requirements they are found to be far from…

Abstract

THE bulk of our hospitals, etc., were built about a century ago and when examined in the light of present‐day needs and future requirements they are found to be far from satisfactory. Millions of hours are wasted annually due to the inadequacies of the buildings, equipment and management. Most of these institutions are trying to give a more comprehensive service to a volume of patients twice as large as they were originally designed to accommodate.

Details

Work Study, vol. 7 no. 6
Type: Research Article
ISSN: 0043-8022

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Article
Publication date: 1 September 1975

“Pressure polymers” is a convenient short name for vinyl acetate‐ethylene, and vinyl acetate‐ethylene‐vinyl chloride copolymers; the use of ethylene in particular…

Abstract

“Pressure polymers” is a convenient short name for vinyl acetate‐ethylene, and vinyl acetate‐ethylene‐vinyl chloride copolymers; the use of ethylene in particular necessitates operating the polymerisation reaction at appreciable pressures, in some cases up to 200 atm. However, the use of pressure in emulsion polymerisation is not an end in itself, interesting though the chemical and engineering challenge has proved to be: the development has arisen from the search for paint media with the best balance of cost and efficiency. Our first experimental vinyl acetate‐ethylene emulsions were shown at the 1966 OCCA Technical Exhibition; one of these grades has been in use on a limited scale for some years, and is now in bulk production at our Warrington factory, which began operating in October 1974. We subsequently undertook work on copolymers and terpolymers involving vinyl chloride, and bulk production of selected products has now started at Warrington.

Details

Pigment & Resin Technology, vol. 4 no. 9
Type: Research Article
ISSN: 0369-9420

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Article
Publication date: 1 August 1984

Cleaning: achieving substantial cost reductions. John Wilkins, a cleaning machine designer, argues that major savings can be made by improving the efficiency of the whole…

Abstract

Cleaning: achieving substantial cost reductions. John Wilkins, a cleaning machine designer, argues that major savings can be made by improving the efficiency of the whole cleaning operation — both in terms of choosing appropriately designed equipment and in using the correct management techniques.

Details

Facilities, vol. 2 no. 8
Type: Research Article
ISSN: 0263-2772

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Article
Publication date: 1 October 1979

Health and safety regulations apart, there are sound economic reasons for keeping the workplace clean and tidy — and a comprehensive range of products and services to meet…

Abstract

Health and safety regulations apart, there are sound economic reasons for keeping the workplace clean and tidy — and a comprehensive range of products and services to meet the need.

Details

Industrial Management, vol. 79 no. 10
Type: Research Article
ISSN: 0007-6929

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Article
Publication date: 1 January 1988

Fluiglide system achieves 5.5% efficiency improvement for NWWA. Trials carried out by North West Water Authority in conjunction with Leeds based anti‐corrosion and repair…

Abstract

Fluiglide system achieves 5.5% efficiency improvement for NWWA. Trials carried out by North West Water Authority in conjunction with Leeds based anti‐corrosion and repair specialists Corrocoat Ltd have further confirmed the ability of the Fluiglide system to significantly increase pump efficiency levels, resulting in reductions in power costs for pumping operations.

Details

Anti-Corrosion Methods and Materials, vol. 35 no. 1
Type: Research Article
ISSN: 0003-5599

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Article
Publication date: 1 June 1994

Roger Clarke

Computer matching is a mass surveillance technique involving thecomparison of data about many people, which have been acquired frommultiple sources. Its use offers…

Abstract

Computer matching is a mass surveillance technique involving the comparison of data about many people, which have been acquired from multiple sources. Its use offers potential benefits, particularly financial savings. It is also error‐prone, and its power results in threats to established patterns and values. The imperatives of efficiency and equity demand that computer matching be used, and the information privacy interest demands that it be used only where justified, and be subjected to effective controls. Provides background to this important technique, including its development and application in the USA and in Australia, and a detailed technical description. Contends that the technique, its use, and controls over its use are very important issues which demand research. Computing, telecommunications and robotics artefacts which have the capacity to change society radically need to be subjected to early and careful analysis, not only by sociologists, lawyers and philosophers, but also by information technologists themselves.

Details

Information Technology & People, vol. 7 no. 2
Type: Research Article
ISSN: 0959-3845

Keywords

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