Search results for: gas-liquid-separation

Gas Liquid And Liquid Liquid Separators

Author : Maurice Stewart
File Size : 52.40 MB
Format : PDF
Download : 538
Read : 216
Download »
Gas-Liquid And Liquid-Liquid Separators is practical guide designed to help engineers and operators develop a ?feel? for selection, specification, operating parameters, and trouble-shooting separators; form an understanding of the uncertainties and assumptions inherent in operating the equipment. The goal is to help familiarize operators with the knowledge and tools required to understand design flaws and solve everyday operational problems for types of separators. Gas-Liquid And Liquid-Liquid Separators is divided into six parts: Part one and two covers fundamentals such as: physical properties, phase behaviour and calculations. Part three through five is dedicated to topics such as: separator construction, factors affecting separation, vessel operation, and separator operation considerations. Part six is devoted to the ASME codes governing wall thickness determination of vessel weight fabrication, inspection, alteration and repair of separators 500 illustrations Easy to understand calculations methods Guide for protecting downstream equipment Helps reduce the loss of expensive intermediate ends Helps increase product purity

Liquid liquid Gas liquid Separation

Author : Suzanne Shelley
File Size : 26.7 MB
Format : PDF
Download : 254
Read : 564
Download »

Gas Liquid Separation

Author : Ronald J. Robichaux
File Size : 23.9 MB
Format : PDF, ePub, Mobi
Download : 665
Read : 1243
Download »
Vapor Liquid Separation Author Contact: Ronald J. Robichaux 1522 Savannah Drive, Garland, Texas 75041 E-mail: [email protected] My experience with separators led me to compile design information for the precise design of this type of equipment. These devices seem simple in their operations. However I have seen a number of them fail to provide the performance required in the process. Working with consultants, their many suggestions and rules of thumb to resolve the issues, has left me with concern as to how to best approach a design for a proper operating separator. I studied the works of many Engineers and designers and collected information from all the manufacturers I worked with in designing separators for my projects. I have read and collected many articles on the subject of separator design. In 1984 I had the opportunity to accept a position with Perry Equipment Corporation in Mineral Wells, Texas. The range of designs, research efforts and field trouble shooting left me with the understanding that "rules of thumb" are useful in a limited set of circumstances. Fortunately for the industry these set of circumstances are sufficient at about 75 to 90 percent of the time. One of the tasks I was given, while in their employ, was to attempt to place a scientific approach as to why these devices proved so successful in most situations, but failed in other situations. In order to develop a better understanding of the design parameters I wanted to know the physical properties of the fluids and their effect associated with separator failures and efficiencies.

Gas Liquid Separation Within a Novel Axial Flow Cyclone Separator

Author : Philip James Dickson
File Size : 53.60 MB
Format : PDF, Mobi
Download : 981
Read : 706
Download »

Gas Liquid Separation Within a Novel Axial Flow Cyclone Separator

Author :
File Size : 38.78 MB
Format : PDF, ePub
Download : 461
Read : 1151
Download »
Cyclone separators have been described in detail and, although substantial research has been performed on solid / gas devices, the use of cyclones for gas / liquid separation has been comparatively ignored; this is particularly true for higher concentrations of liquid and for degassing applications. Consequently no generic models are available which will predict separation efficiency or pressure drop for all designs of cyclone. A novel design of axial flow cyclone called WELLSEP was examined for the purpose of degassing. This design was not believed to be optimal and no design criteria or performance prediction models were available for it. An experimental programme was therefore produced and executed to investigate changes in geometry and the affect of fluid dynamics. Changes to the length, vortex finder and swirl generator were examined first and then one design was selected and tested over a number of liquid flow rates, Gas Void Fractions (GVFs) and liquid extractions. Data was collected from the experiments which assisted in the development of semi-empirical models for the prediction of pressure drop and separation efficiency. These models could be used in the design of WELLSEP. Geometric and fluid dynamics changes have both been shown to influence the performance of the tested cyclone. The principal conclusions that have been drawn from this research are: " Of the tested designs, the design based upon a 30mm vortex finder diameter, settling chamber length of three times the diameter of the cyclone and a four start helix gave the optimum separation efficiency over the greatest range of conditions. 0 The separation efficiency is affected by the superficial liquid velocity and the liquid extraction but not the GVF." The dimensionless pressure drop coefficient (Euler number) is a function of liquid extraction and GVF. It may also be a function of the superficial liquid velocity but it is unproven by this research.

Gas liquid solid Systems

Author : Larry Ricci
File Size : 81.54 MB
Format : PDF, ePub, Mobi
Download : 331
Read : 176
Download »

CFD Studies of Gas Liquid Separation

Author : Jalal Hunain Zia
File Size : 36.90 MB
Format : PDF, ePub, Docs
Download : 212
Read : 1232
Download »

Gas liquid Separator and Method of Operation

Author :
File Size : 55.85 MB
Format : PDF, Docs
Download : 484
Read : 251
Download »
A system for gas-liquid separation in electrolysis processes is provided. The system includes a first compartment having a liquid carrier including a first gas therein and a second compartment having the liquid carrier including a second gas therein. The system also includes a gas-liquid separator fluidically coupled to the first and second compartments for separating the liquid carrier from the first and second gases.

Gas liquid Separation Using Axial Flow Cyclones

Author : Sin Yuan Ng
File Size : 85.58 MB
Format : PDF, ePub, Mobi
Download : 470
Read : 505
Download »

ASME 66 WA NE 11

Author : A. A. Kudirka
File Size : 77.39 MB
Format : PDF, Kindle
Download : 497
Read : 301
Download »

Investigation of Passive Cyclonic Gas liquid Separator Performance for Microgravity Applications

Author : Ming-Fang Kang
File Size : 55.78 MB
Format : PDF, Mobi
Download : 792
Read : 190
Download »
Gas-liquid separation is a key task for various systems that are utilized onboard the International Space Station, such as active thermal control and waste management. In most of these system designs, performance is either significantly degraded or the equipment undergoes increased wear if two phase flow is not first separated.Unlike being under the influence of Earth gravity, where gas and liquid separate spontaneously due to buoyancy forces, gas bubbles remain suspended within the liquid under microgravity conditions. In the passive cyclonic separator studied in this research, the gas-liquid mixture is separated by the centrifugal force created by tangentially injecting the two phase fluid into a cylindrical housing. The inertia of the flow itself creates a swirling motion which generates the centrifugal acceleration. Due to the density differences between the two phases, the lower density gas phase moves towards the center of rotation creating a gas core surrounded by an annular liquid film.In such an operation, the separation efficiency is strongly influenced by the gas core behavior and the transport of bubbles within the turbulent liquid annulus. The main focus of the present study is to obtain physical insight into the gas core behavior as well as the bubble dynamics within the liquid film through experimentation and computational modeling.The experimental portion of this work entails the construction and operation of a specific cyclonic two phase separator operated across its useful parameter range under the influence of Earth gravity. The useful operating ranges and separation efficiencies are mapped. The numerical modeling work includes two hybrid-multiphase computational fluid dynamics techniques coupled with large eddy simulation turbulence modeling and are implemented by using the OpenFOAM library.Data analysis and comparison reveal that the injection nozzle design, swirl number, and volumetric gas quality all have a major influence on the gas core size. The control volume analysis reveals the importance of the skin friction coefficient. The trajectories of single gas bubbles are simulated numerically and graphed. It is found that fluid turbulence tends to disperse small gas bubbles in the liquid film resulting in a longer residence time.

Aspects of Two phase Gas liquid Separation Related to Nuclear Steam Supply Systems

Author : Carel Albert Prins
File Size : 47.97 MB
Format : PDF, Kindle
Download : 388
Read : 1193
Download »

Aspects of Two phase Gas liquid Separation Relation to Nuclear Steam Supply Systems

Author : Carel Albert Prins
File Size : 73.37 MB
Format : PDF, Mobi
Download : 645
Read : 347
Download »

Electrostatic Gas liquid Separation from High Speed Streams application to Advanced On line on demand Separation Techniques

Author : Mohamed Alshehhi
File Size : 37.40 MB
Format : PDF, ePub
Download : 475
Read : 982
Download »

Experimental and Simulation Studies on Performance of a Compact Gas liquid Separation System

Author : Ying Hui Zhou
File Size : 52.4 MB
Format : PDF, ePub
Download : 920
Read : 350
Download »

Experimental Study on the Effect of the Internal Design on the Performance of Down Hole Gas Separators

Author : Ochiagha Victor Ananaba
File Size : 76.96 MB
Format : PDF, ePub, Docs
Download : 860
Read : 1103
Download »

Passive Gas liquid Separation Using Hydrophobic Porous Polymer Membranes

Author : Taylor Patrick Maxwell
File Size : 51.7 MB
Format : PDF, ePub, Mobi
Download : 442
Read : 260
Download »
The use of hydrophobic porous polymer membranes to vent unwanted gas bubbles from liquid streams is becoming increasingly more common in portable applications such as direct methanol fuel cells (DMFCs) and micro-fluidic cooling of electronic circuits. In order for these portable systems to keep up with the ever increasing demand of the mobile user, it is essential that auxiliary components, like gas-liquid separators (GLS), continue to decrease in weight and size. While there has been significant progress made in the field of membrane-based gas-liquid separation, the ability to miniaturize such devices has not been thoroughly addressed in the available literature. Thus, it was the purpose of this work to shed light on the scope of GLS miniaturization by examining how the amount porous membrane required to completely separate gas bubbles from a liquid stream varies with operating pressure. Two membrane characterization experiments were also employed to determine the permeability, k, and liquid entry pressure (LEP) of the membrane, which provided satisfying results. These parameters were then implemented into a mathematical model for predicting the theoretical membrane area required for a specified two-phase flow, and the results were compared to experimental values. It was shown that the drastically different surface properties of the wetted materials within the GLS device, namely polytetrafluoroethylene (PTFE) and acrylic, caused the actual membrane area requirement to be higher than the theoretical predictions by a constant amount. By analyzing the individual effects of gas and liquid flow, it was also shown that the membrane area requirement increased significantly when the liquid velocity exceeded an amount necessary to cause the flow regime to transition from wedging/slug flow to wavy/semi-annular flow.

Gas Liquid Separation for Direct Methanol Fuel Cells

Author : Sydni Stevens Credle
File Size : 80.65 MB
Format : PDF, ePub
Download : 214
Read : 1330
Download »
Experiments were performed to determine the rate of water loss for GLS membrane under various active and idle conditions. It was concluded that vent pressure range 0 - 6895 Pa (gage) has no significant influence on the evaporation loss rate. Model results for total water loss rate correlated with experimental data within 6.5%. Lastly, a new GLS design configuration that utilizes membrane technology, Pandora, is introduced. Design, fabrication, and testing of the prototype device illustrates proof of concept and feasibility for the component.

Gas liquid Mixtures Used as Separation Media

Author : Kai Zhao
File Size : 22.17 MB
Format : PDF
Download : 363
Read : 779
Download »

Wet Gas Separation in Gas liquid Cylindrical Cyclone GLCC Separator

Author : Robiro C. Molina
File Size : 56.62 MB
Format : PDF, Docs
Download : 626
Read : 883
Download »