Author: A. G. Adedigba
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The aim of this study was to investigate hydrodynamic two -phase (namelywater and air) fluid flow characteristics in helical pipes of low amplitude andstraight pipes of the same internal-diameter and constructional material: theresults for the two pipes have then been compared. One of the objectives was to measure pressure, pressure drop and liquidholdup in the two pipes. These are universal dominant parameters in the oiland-gas industry as they significantly impact on the exploitation andconveyance of crude oil from wells or reservoirs to the process plant, where thecrude is refined. The second objective was to examine applications of thehelical pipe. Experiments were performed on three different helical pipes of internaldiameters 25.4 mm, 50 mm and 100 mm and their straight counterparts. Thesingle-phase preliminary experimental results from the 25.4 mm internaldiameterfor both pipes have shown that both pressure and pressure drop arehigher in the helical pipe than in the straight pipe. The friction factors were alsoevaluated for both pipes and found to be higher in the helical pipe than in thestraight pipe. The single-phase and two-phase experimental results for the 50mm internal-diameter pipes confirmed the conclusions from the preliminaryexperimental results. The two-phase results showed that slug flow occurred inthe straight pipe at certain superficial velocities of air and water, whereas at thesame superficial velocities of air and water, slug flow did not ensue in the helicalpipe - instead bubbly flow was observed. Stratified flow occurred in the straightpipe at very low superficial velocities of air and water but under these sameconditions, bubbly flow ensued in the helical pipe. A section of 100 mm internal-diameter helical pipe was installed at somedistance from a catenary-shaped riser, with a view to investigating theeffectiveness of the helical pipe in mitigating severe slugging. The resultsshowed promise as the section of the helical pipe proved to be successful inreducing the menace of severe slugging. This novel finding is regarded as abreakthrough for the oil-and-gas industry in this respect. This is becausehydrocarbon proven reserves in the off-shore (i.e. deep sea-water) environmenthave been estimated to be close to 60%. All previous research studies over thepast decade to provide solution to the problem posed by severe slugging havenot yielded any appreciable results. This discovery also has the advantages ofreducing the demand on the topside (process) facility and the achievement ofstability of liquid production is resulted from the consequent flow assurance inthe pipeline and riser.
Two-phase Flow of Gas-liquid Mixtures on Horizontal Helical Pipes
Author: A. G. Adedigba
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The aim of this study was to investigate hydrodynamic two -phase (namelywater and air) fluid flow characteristics in helical pipes of low amplitude andstraight pipes of the same internal-diameter and constructional material: theresults for the two pipes have then been compared. One of the objectives was to measure pressure, pressure drop and liquidholdup in the two pipes. These are universal dominant parameters in the oiland-gas industry as they significantly impact on the exploitation andconveyance of crude oil from wells or reservoirs to the process plant, where thecrude is refined. The second objective was to examine applications of thehelical pipe. Experiments were performed on three different helical pipes of internaldiameters 25.4 mm, 50 mm and 100 mm and their straight counterparts. Thesingle-phase preliminary experimental results from the 25.4 mm internaldiameterfor both pipes have shown that both pressure and pressure drop arehigher in the helical pipe than in the straight pipe. The friction factors were alsoevaluated for both pipes and found to be higher in the helical pipe than in thestraight pipe. The single-phase and two-phase experimental results for the 50mm internal-diameter pipes confirmed the conclusions from the preliminaryexperimental results. The two-phase results showed that slug flow occurred inthe straight pipe at certain superficial velocities of air and water, whereas at thesame superficial velocities of air and water, slug flow did not ensue in the helicalpipe - instead bubbly flow was observed. Stratified flow occurred in the straightpipe at very low superficial velocities of air and water but under these sameconditions, bubbly flow ensued in the helical pipe. A section of 100 mm internal-diameter helical pipe was installed at somedistance from a catenary-shaped riser, with a view to investigating theeffectiveness of the helical pipe in mitigating severe slugging. The resultsshowed promise as the section of the helical pipe proved to be successful inreducing the menace of severe slugging. This novel finding is regarded as abreakthrough for the oil-and-gas industry in this respect. This is becausehydrocarbon proven reserves in the off-shore (i.e. deep sea-water) environmenthave been estimated to be close to 60%. All previous research studies over thepast decade to provide solution to the problem posed by severe slugging havenot yielded any appreciable results. This discovery also has the advantages ofreducing the demand on the topside (process) facility and the achievement ofstability of liquid production is resulted from the consequent flow assurance inthe pipeline and riser.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The aim of this study was to investigate hydrodynamic two -phase (namelywater and air) fluid flow characteristics in helical pipes of low amplitude andstraight pipes of the same internal-diameter and constructional material: theresults for the two pipes have then been compared. One of the objectives was to measure pressure, pressure drop and liquidholdup in the two pipes. These are universal dominant parameters in the oiland-gas industry as they significantly impact on the exploitation andconveyance of crude oil from wells or reservoirs to the process plant, where thecrude is refined. The second objective was to examine applications of thehelical pipe. Experiments were performed on three different helical pipes of internaldiameters 25.4 mm, 50 mm and 100 mm and their straight counterparts. Thesingle-phase preliminary experimental results from the 25.4 mm internaldiameterfor both pipes have shown that both pressure and pressure drop arehigher in the helical pipe than in the straight pipe. The friction factors were alsoevaluated for both pipes and found to be higher in the helical pipe than in thestraight pipe. The single-phase and two-phase experimental results for the 50mm internal-diameter pipes confirmed the conclusions from the preliminaryexperimental results. The two-phase results showed that slug flow occurred inthe straight pipe at certain superficial velocities of air and water, whereas at thesame superficial velocities of air and water, slug flow did not ensue in the helicalpipe - instead bubbly flow was observed. Stratified flow occurred in the straightpipe at very low superficial velocities of air and water but under these sameconditions, bubbly flow ensued in the helical pipe. A section of 100 mm internal-diameter helical pipe was installed at somedistance from a catenary-shaped riser, with a view to investigating theeffectiveness of the helical pipe in mitigating severe slugging. The resultsshowed promise as the section of the helical pipe proved to be successful inreducing the menace of severe slugging. This novel finding is regarded as abreakthrough for the oil-and-gas industry in this respect. This is becausehydrocarbon proven reserves in the off-shore (i.e. deep sea-water) environmenthave been estimated to be close to 60%. All previous research studies over thepast decade to provide solution to the problem posed by severe slugging havenot yielded any appreciable results. This discovery also has the advantages ofreducing the demand on the topside (process) facility and the achievement ofstability of liquid production is resulted from the consequent flow assurance inthe pipeline and riser.
Two-Phase Gas-Liquid Flow in Pipes with Different Orientations
Author: Afshin J. Ghajar
Publisher: Springer Nature
ISBN: 3030416267
Category : Science
Languages : en
Pages : 136
Book Description
This book provides design engineers using gas-liquid two-phase flow in different industrial applications the necessary fundamental understanding of the two-phase flow variables. Two-phase flow literature reports a plethora of correlations for determination of flow patterns, void fraction, two- phase pressure drop and non-boiling heat transfer correlations. However, the validity of a majority of these correlations is restricted over a narrow range of two -phase flow conditions. Consequently, it is quite a challenging task for the end user to select an appropriate correlation/model for the type of two-phase flow under consideration. Selection of a correct correlation also requires some fundamental understanding of the two-phase flow physics and the underlying principles/assumptions/limitations associated with these correlations. Thus, it is of significant interest for a design engineer to have knowledge of the flow patterns and their transitions and their influence on two-phase flow variables. To address some of these issues and facilitate selection of appropriate two-phase flow models, this volume presents a succinct review of the flow patterns, void fraction, pressure drop and non-boiling heat transfer phenomenon and recommend some of the well scrutinized modeling techniques.
Publisher: Springer Nature
ISBN: 3030416267
Category : Science
Languages : en
Pages : 136
Book Description
This book provides design engineers using gas-liquid two-phase flow in different industrial applications the necessary fundamental understanding of the two-phase flow variables. Two-phase flow literature reports a plethora of correlations for determination of flow patterns, void fraction, two- phase pressure drop and non-boiling heat transfer correlations. However, the validity of a majority of these correlations is restricted over a narrow range of two -phase flow conditions. Consequently, it is quite a challenging task for the end user to select an appropriate correlation/model for the type of two-phase flow under consideration. Selection of a correct correlation also requires some fundamental understanding of the two-phase flow physics and the underlying principles/assumptions/limitations associated with these correlations. Thus, it is of significant interest for a design engineer to have knowledge of the flow patterns and their transitions and their influence on two-phase flow variables. To address some of these issues and facilitate selection of appropriate two-phase flow models, this volume presents a succinct review of the flow patterns, void fraction, pressure drop and non-boiling heat transfer phenomenon and recommend some of the well scrutinized modeling techniques.
An Index to the Two-phase Gas-liquid Flow Literature
Author: S. William Gouse
Publisher:
ISBN:
Category : Two-phase flow
Languages : en
Pages : 902
Book Description
Publisher:
ISBN:
Category : Two-phase flow
Languages : en
Pages : 902
Book Description
Two-phase Flow Studies in Horizontal Pipes with Special Reference to Bubbly Mixtures
Author: Walter James
Publisher:
ISBN:
Category : Two-phase flow
Languages : en
Pages : 84
Book Description
Publisher:
ISBN:
Category : Two-phase flow
Languages : en
Pages : 84
Book Description
Two-phase Flow in Pipelines and Heat Exchangers
Author: Duncan Chisholm
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 328
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 328
Book Description
Handbook of Single-Phase Convective Heat Transfer
Author: Sadik KakaƧ
Publisher: Wiley-Interscience
ISBN:
Category : Science
Languages : en
Pages : 1268
Book Description
Very Good,No Highlights or Markup,all pages are intact.
Publisher: Wiley-Interscience
ISBN:
Category : Science
Languages : en
Pages : 1268
Book Description
Very Good,No Highlights or Markup,all pages are intact.
Flow Patterns of Two-phase Flow
Author: John H. Vohr
Publisher:
ISBN:
Category : Two-phase flow
Languages : en
Pages : 64
Book Description
Publisher:
ISBN:
Category : Two-phase flow
Languages : en
Pages : 64
Book Description
Two-phase Gas-liquid Flow in Pipes with Different Orientations
Author: Afshin Jahanshahi Ghajar
Publisher:
ISBN: 9783030416270
Category : Two-phase flow
Languages : en
Pages : 136
Book Description
This book provides design engineers using gas-liquid two-phase flow in different industrial applications the necessary fundamental understanding of the two-phase flow variables. Two-phase flow literature reports a plethora of correlations for determination of flow patterns, void fraction, two- phase pressure drop and non-boiling heat transfer correlations. However, the validity of a majority of these correlations is restricted over a narrow range of two -phase flow conditions. Consequently, it is quite a challenging task for the end user to select an appropriate correlation/model for the type of two-phase flow under consideration. Selection of a correct correlation also requires some fundamental understanding of the two-phase flow physics and the underlying principles/assumptions/limitations associated with these correlations. Thus, it is of significant interest for a design engineer to have knowledge of the flow patterns and their transitions and their influence on two-phase flow variables. To address some of these issues and facilitate selection of appropriate two-phase flow models, this volume presents a succinct review of the flow patterns, void fraction, pressure drop and non-boiling heat transfer phenomenon and recommend some of the well scrutinized modeling techniques.
Publisher:
ISBN: 9783030416270
Category : Two-phase flow
Languages : en
Pages : 136
Book Description
This book provides design engineers using gas-liquid two-phase flow in different industrial applications the necessary fundamental understanding of the two-phase flow variables. Two-phase flow literature reports a plethora of correlations for determination of flow patterns, void fraction, two- phase pressure drop and non-boiling heat transfer correlations. However, the validity of a majority of these correlations is restricted over a narrow range of two -phase flow conditions. Consequently, it is quite a challenging task for the end user to select an appropriate correlation/model for the type of two-phase flow under consideration. Selection of a correct correlation also requires some fundamental understanding of the two-phase flow physics and the underlying principles/assumptions/limitations associated with these correlations. Thus, it is of significant interest for a design engineer to have knowledge of the flow patterns and their transitions and their influence on two-phase flow variables. To address some of these issues and facilitate selection of appropriate two-phase flow models, this volume presents a succinct review of the flow patterns, void fraction, pressure drop and non-boiling heat transfer phenomenon and recommend some of the well scrutinized modeling techniques.
Low Liquid Loading Gas-liquid Two-phase Flow in Near-horizontal Pipes
Author: Weihong Meng
Publisher:
ISBN:
Category : Pipelines
Languages : en
Pages : 340
Book Description
Publisher:
ISBN:
Category : Pipelines
Languages : en
Pages : 340
Book Description
Two-Phase Flow, Boiling, and Condensation
Author: S. Mostafa Ghiaasiaan
Publisher: Cambridge University Press
ISBN: 1316785300
Category : Technology & Engineering
Languages : en
Pages : 1322
Book Description
Providing a comprehensive introduction to the fundamentals and applications of flow and heat transfer in conventional and miniature systems, this fully enhanced and updated edition covers all the topics essential for graduate courses on two-phase flow, boiling, and condensation. Beginning with a concise review of single-phase flow fundamentals and interfacial phenomena, detailed and clear discussion is provided on a range of topics, including two-phase hydrodynamics and flow regimes, mathematical modeling of gas-liquid two-phase flows, pool and flow boiling, flow and boiling in mini and microchannels, external and internal-flow condensation with and without noncondensables, condensation in small flow passages, and two-phase choked flow. Numerous solved examples and end-of-chapter problems that include many common design problems likely to be encountered by students, make this an essential text for graduate students. With up-to-date detail on the most recent research trends and practical applications, it is also an ideal reference for professionals and researchers in mechanical, nuclear, and chemical engineering.
Publisher: Cambridge University Press
ISBN: 1316785300
Category : Technology & Engineering
Languages : en
Pages : 1322
Book Description
Providing a comprehensive introduction to the fundamentals and applications of flow and heat transfer in conventional and miniature systems, this fully enhanced and updated edition covers all the topics essential for graduate courses on two-phase flow, boiling, and condensation. Beginning with a concise review of single-phase flow fundamentals and interfacial phenomena, detailed and clear discussion is provided on a range of topics, including two-phase hydrodynamics and flow regimes, mathematical modeling of gas-liquid two-phase flows, pool and flow boiling, flow and boiling in mini and microchannels, external and internal-flow condensation with and without noncondensables, condensation in small flow passages, and two-phase choked flow. Numerous solved examples and end-of-chapter problems that include many common design problems likely to be encountered by students, make this an essential text for graduate students. With up-to-date detail on the most recent research trends and practical applications, it is also an ideal reference for professionals and researchers in mechanical, nuclear, and chemical engineering.