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Investigation of microbiologically influenced corrosion (MIC) and biocide treatment in anaerobic salt water and development of a mechanistic MIC model /Zhao, Kaili. January 2008 (has links)
Thesis (Ph.D.)--Ohio University, November, 2008. / Release of full electronic text on OhioLINK has been delayed until November 30, 2010. Includes bibliographical references (leaves 265-284)
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Investigation of microbiologically influenced corrosion (MIC) and biocide treatment in anaerobic salt water and development of a mechanistic MIC modelZhao, Kaili. January 2008 (has links)
Thesis (Ph.D.)--Ohio University, November, 2008. / Title from PDF t.p. Release of full electronic text on OhioLINK has been delayed until November 30, 2010. Includes bibliographical references (leaves 265-284)
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The effect of the particle size distribution on non-Newtonian turbulent slurry flow in pipesThorvaldsen, Gary Sven January 1996 (has links)
Thesis (MTech (Chemical Engineering))--Cape Technikon, Cape Town,1996 / The handling of solid-liquid suspensions is an important concern within the chemical and
processing industries and many theoretical models have been proposed to try and explain and
predict turbulent flow behaviour. However, the prediction of turbulent flow from only the
viscous properties of non-Newtonian suspensions has over the years been questioned by
researchers. This thesis considers theoretical models well established in the literature and
the Slatter model, which uses both the rheology of the suspension and the particle size
distribution of the solids. These models are used to analyze the experimental data and the
effect that particle size and the particle size distribution has on turbulent flow behaviour.
The literature concerning the rheological fundamentals relevant to fluid flow in pipes has
been examined. The Newtonian turbulent flow model as well as the non-Newtonian models
of Dodge & Metzner, Torrance, Kemblowski & Kolodziejski, Wilson & Thomas and Slatter
have been reviewed.
Test work was conducted at the University of Cape Town's Hydrotransport Research
Laboratory using a pumped recirculating pipe test rig. The test apparatus has been fully
described and calibration and test procedures to enable collecting of accurate pipeline data
have been presented. Three slurries were used in test work namely kaolin clay, mixture I
(kaolin clay and rock flour) and mixture 2 (kaolin clay, rock flour and sand) with ad,s
particle size ranging from 24/Lm to 170/Lm.
The yield pseudoplastic model has been used to model and predict the laminar flow of the
suspensions that were tested and the meth9J adopted by Neill (1988) has been used to
determine the rheological constants. The pipeline test results have been presented as pseudoshear
diagrams together with the theoretical model lines providing a visual appraisal of the
performance of each model. The Slatter model predicts the test data best with the other
theoretical models that were considered tending to under predict the head loss. The reason
the Slatter model performs better than the other theoretical models is because this model can
account for the wall roughness and particle roughness effect. Evidence to support this
statement has been presented.
This thesis highlights the fact that the particle size distribution is a vitally important property
of the suspension and that it does influence turbulent flow behaviour. It shows that
turbulence modelling using the particle roughness effect (eg Slatter, 1994) is valid and can
be adopted for non-Newtonian slurries. It is concluded that the particle size distribution must
be used to determine the particle roughness effect and this effect must be incorporated in the
turbulent flow analysis of non-Newtonian slurries.
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The mechanical behaviour and fatigue analysis of flexible pipesChen, Zhenxin January 1990 (has links)
No description available.
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Thermal behaviour of transient high pressure high speed flowing systemsKeefe, Daniel Anthony January 2000 (has links)
No description available.
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Computerization of gas pipe network system : a feasibility study : research report.January 1982 (has links)
by Kwan Yuk-choi James, Ng Yuk-kau Sam. / Bibliography: leaves 111-112 / Thesis (M.B.A.)--Chinese University of Hong Kong, 1982
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Riser response reconstruction using an inhomogeneous waveguide modelChen, Piing Chau January 2014 (has links)
No description available.
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Modeling cathodic protection for pipeline networksRiemer, Douglas P. January 2000 (has links) (PDF)
Thesis (Ph. D.)--University of Florida, 2000. / Title from first page of PDF file. Document formatted into pages; contains xxii, 263 p.; also contains graphics. Abbreviated abstract copied from student-submitted information. Vita. Includes bibliographical references (p. 252-262).
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The Dynamic Analysis for Large Undersea Pipelines with VE-layer Modeled as Composite Shell.Chung, Pei-Yin 24 July 2001 (has links)
^¤åºKn
The research is to investigate the dynamic behavior for the large undersea pipeline structure system subjected to the wave force. In this study, the primary structure is composed of two steel layers and one viscoelastic layer modeled as a three-layered pipeline structure in composite type.
The theory of this study is based on Reddy¡¦s¡§High-order Shear Deformation Theory¡¨and continues Lee¡¦s research on VE materials applied in the engineering structures to discuss the dynamic behavior and the ability of VE materials to restrain the vibration.
Based on the theory derived, the analytical results of vibration, deformation of the pipeline and the dynamic behavior for the whole pipeline system are obtained and discussed, in order to improve the dynamic performance for pipeline system and eventually to upgrade the durability of the system.
This thesis is divided into two parts for pipeline structures ¡X the general pipeline structures and the undersea pipeline structures. For the general pipeline structures, the study focuses on the effect of the vibration mitigation due to the variation of the diameter of pipelines, length of pipelines and thickness of the viscoelastic material. Besides, the external forces of high-frequency loading and low-frequency loading are both applied. For the undersea pipeline structures, the depth of water, loading types (include the in-line force and the lift force), the periods of wave and the wave length of environmental effects are taken into account.
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Modeling cathodic protection for pipeline networksRiemer, Douglas P. January 2000 (has links) (PDF)
Thesis (Ph. D.)--University of Florida, 2000. / Title from first page of PDF file. Document formatted into pages; contains xxii, 263 p.; also contains graphics. Abbreviated abstract copied from student-submitted information. Vita. Includes bibliographical references (p. 252-262).
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