Last edited by Vujin
Tuesday, April 21, 2020 | History

2 edition of Design of novel gas velocity sensors for flotation systems found in the catalog.

Design of novel gas velocity sensors for flotation systems

Jorge Agustin Torrealba Vargas

Design of novel gas velocity sensors for flotation systems

  • 259 Want to read
  • 25 Currently reading

Published by McGill University, Dept. of Mining, Metals and Materials Engineering in Montreal, QC .
Written in English

    Subjects:
  • Flotation,
  • Separation (Technology)

  • Edition Notes

    StatementJorge Agustin Torrealba Vargas.
    Classifications
    LC ClassificationsTN"523"T67"2004
    The Physical Object
    Paginationxxviii, 186 l. :
    Number of Pages186
    ID Numbers
    Open LibraryOL22237837M

    Abstract. Intra- and inter-company production networks have gained increased importance in developed and industrialising countries. By reusing waste of industrial sites as a valuable input within the production network, material cycles can be closed and resource efficiency can be order to improve the performance of a production process, a detailed mapping of the mass and energy. Fluid dynamics of air in a packed bed: velocity profiles and the continuum model assumption. A. L. NEGRINI 1, A. FUELBER 2, J. T. FREIRE 3 and J. C. THOMÉO 4 1 Engenharia Química/UFSCar, 2 PPG-EQ/UFSCar 3 DEQ/UFSCar. C. P. , CEP , São Carlos - SP, Brasil. The interactions of emulsion drops and gas bubbles in complex fluids play important roles in a wide range of biological and technological applications, such as programmable drug and gene delivery, emulsion and foam formation, and froth flotation of mineral particles. In this feature article, we have reviewed our recent progress on the quantification of surface forces and interaction mechanisms Cited by: Optimization by Direct Search: New Perspectives on Some Classical and Modern Methods. Related Databases. Novel Optical Systems Design and Optimization XXI, Calibration Framework based on Bluetooth Sensors for Traffic State Estimation Using a Velocity based Cell Transmission by:

    The SERIES VA Variable Area Glass Flowmeters are designed with easy to read universal mm scale and supplied with correlation charts containing calibration data for air and water.. Glass flowmeters are suitable for metering carrier gases, liquid and gas measurement in pilot plants, laboratories, process flow and level indicating.


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Design of novel gas velocity sensors for flotation systems by Jorge Agustin Torrealba Vargas Download PDF EPUB FB2

Updated and better than ever, Design of Gas-Handling Systems and Facilities, 3rd Edition includes greatly expanded chapters on gas-liquid separation, gas sweetening, gas liquefaction, and gas dehydration ―information necessary and critical to production and process engineers and l gas is at the forefront of today's energy needs, and this book walks you through the 4/4(2).

Industrial testing of a gas holdup sensor for flotation systems Article in Minerals Engineering 16(6) June with 43 Reads How we measure 'reads'.

"Discusses the origin of flotation in mineral processing, describes the application of new flotation theories, and considers various alternative techniques, including flocculation and solvent sublation. Contains authoritative contributions from more than 45 international experts."/5(2).

A combination of CFD model with flotation kinetics has been proven to be a novel approach to flotation cell design as bubble-particle attachment and detachment rates can be predicted from detailed. The optimum gas velocity for column flotation has been identified to be in the bubbly flow regime [1,2].

By using dimensional analysis, it is shown here that the maximum gas velocity for the existence of bubbly flow conditions in flotation columns is given by U g,max = D c It is shown that all large diameter flotation columns are being Cited by: The flotation column operational parameter controlling the availability of bubble surface is the gas velocity which emerges as a key design and scale-up parameter.

The optimum gas velocity for column flotation has been identified to be in the bubbly flow regime [1,2].Cited by: Induced Gas Flotation (IGF) is a well-proven method of oil The high velocity through the Eductor induces gas into the recycle water stream, where the water and gas are mixed and sheared to create a dispersion of small gas bubbles particles at full design capacity.

Induced Gas Flotation DFile Size: KB. The Handbook of Environmental Engineering series is an incredible collection of methodologies that study the effects of pollution and waste in their three basic forms: gas, solid, and liquid.

This exciting new addition to the series, Volume Flotation Technology, has been designed to serve as both a basic flotation textbook and a comprehensive reference book. One of the well known intermediate stages to treat water and wastewater is Dissolved Air Flotation (DAF). In order to design an efficient DAF unit, it is important to study the system and get familiar with the flow structure in it.

Computational Fluid Dynamics (CFD) is used as a tool to study a flotation unit. A flotation cell is the primary unit operation used to recover fine oil droplets from produced water systems. Both mechanical induced gas flotation (IGF) and hydraulic dissolved gas flotation (DGF) cells have been used for residual oil removal from produced water since the late ’s (Sport ; Bassett ).File Size: KB.

Aiming at the defects of current thermal mass flow sensor, we developed a novel thermal gas mass flowmeter based on the principle of constant power, which consists of semiconductor sensors and a microcontroller as the core controller.

The design plan is carried out on the basis of simple structure and reasonable cost, which maximizes accuracy and reliability of the : Jun Hao Jiang, Shao Zhong Cao.

determine the amount of entrained gas (gas void fraction) when the gas is in the form of bubbles that are well mixed within the liquid or slurry. Since the wavelengths of the acoustic waves are much larger than the bubble size, a complex interaction takes place that sets the acoustic velocity to be a strong function of the gas void fraction.

Since these sensors can be applied for the automation of myriad industrial processes, as well as for everyday monitoring of such activities as public safety, engine performance, medical therapeutics, and in many other situations, this handbook is of great value.

Gas sensor designers will find a treasure trove of material in these two books. Flotation of the bubble-particle agglomerate in a flotation chamber. Gas-Water Equilibrium The gas-phase-aqueous-phase equilibrium is given by Henry’s law. Henry’s law states that the aqueous concentration of dissolved gas of a species is proportional to the partial pressure of that species in the gas phase.

It is given by the equation:File Size: KB. Cyclonic fields are important for cyclonic static microbubble flotation columns (FCSMCs), one of the most important developments in column flotation technology, particularly for separation of fine particles, where the internal flow field has enormous influence on flotation performance.

PIV (particle image velocimetry) and CFD (computational fluid dynamics) are the most effective methods to Cited by: 2. This work presents a brief introduction on the basics of fiber-optical sensors and an overview focused on the applications to measurements in multiphase reactors.

The most commonly principle utilized is laser back scattering, which is also the foundation for almost all current probes used in multiphase reactors. The fiber-optical probe techniques in two-phase reactors are more developed than Cited by: The Educator creates a gas-rich fluid stream of small bubbles that is fed back into the IGF unit and dispersed through the water.

Flocculant or flotation chemicals can assist in oil and or solids removal by Induced Gas Flotation. Benefits associated with properly designed and implemented IGF systems include: Low or nil chemical consumption.

which was incorporated in a scaled-up design for industrial pilot testing, suitable for roughly 40x more membrane area. In such a design, to be commissioned earlymany optimisations have been included, e.g.

with respect to sealing issues, flow patterns, packing density and accessibility for sensors. Electrostatic sensor is based on the principle of electrostatic induction. It is widely used for gas/solid two-phase flow measurement because it has the advantages of simple structure, high sensitivity, low cost, etc.

In this paper, a velocity measurement system of gas/solid flow based on electrostatic sensor and cross-correlation algorithm is : Yu Tang, Xiang Deng, Shuo Tian. Enviro-Cell™ EC-3V Vertical Induced Gas Flotation Unit The produced water treatment system is an integral part of any offshore production facility.

All produced water generated in an offshore field is treated on the facility with the produced water treatment equipment available. This equipment must be able to meet stringent discharge. Application of CFD for Improved Vertical Column Induced Gas Flotation (IGF) System Development Chang-Ming Lee and Ted Frankiewicz NATCO Group, Inc., North Loop West, SuiteHouston, TX Prepared for presentation at AIChE Spring National Meeting The superficial gas velocity is measured by the displacement of water by gas over a known period of time, using a calibrated cylinder on top of the viewing chamber.

JKTech is the global distributor of the APBS, which is manufactured by Stone Three Venture Technology (Pty) Ltd File Size: 4MB. Environmental pollution in Nigeria presents an urgent need to assess wastewater treatment facilities in various industries.

This article presents an assessment of dissolved air flotation (DAF) operation in a dairy industry. The industry was visited, wastewater treatment facilities were assessed (based only on efficacy to remove selected environmental health-related pollutants) and Cited by: 3.

chamber in which the gas velocity is slowed, allowing the particles to settle out by gravity. A cyclone operates by causing the entire gas stream to flow in a spiral pattern inside a tapered tube.

Because of the centrifugal force, particles migrate outward and collect on the wall ofthe tube. The particles slide down the wall and fall to the bottom,File Size: 3MB. The gas dispersion parameters in a fully controlled laboratory column flotation cell, (gas hold-up, superficial gas velocity and bubble size distribution) have been measured by image analyses and compared to those calculated using drift flux analysis.

The role of the frother (Dowfroth ) in energy dissipation in bubble generation and Cited by: 4. A dynamic pressure wave velocity model is presented based on momentum equation, mass-balance equation, equation of state, and small perturbation theory.

Simultaneously, the drift model was used to analyze the flow characteristics of oil, gas, water, and drilling fluid multiphase flow. In addition, the dynamic model considers the gas dissolution, virtual mass force, drag force, and relative Cited by: 1.

Flotation Engineering: Volume 18 (Handbook of Environmental Engineering) [Wang, Lawrence K.] on *FREE* shipping on qualifying offers. Flotation Engineering: Volume 18 (Handbook of Environmental Engineering). The sensors we have choosen are sold with SMD (surface mount) packages so we need a gas chamber that "sits" on the PCB surface (see figure).

Usually gas chambers are circular based in order to include an O-Ring in order to ensure gas tightness but in this case, for design related issues, we need a rectangular based gas chamber. Autoflot® is a Mechanical Induced Gas Flotation (IGF) separator.

Induced Gas Flotation separates oil from produced water or other oily water streams. IGF oil water separation units typically form part of a treatment train to reduce free oil and solids by % with maximum inlet concentrations of mg/l of free oil and less than mg/l of.

Novel Vacuum Vessel & Coil System Design for the Advanced Divertor Experiment (ADX) R.F. Vieira, J. Doody, W.K. Beck, L. Zhou, R. Leccacorvi, B. LaBombard, R.S. Granetz, design is a novel approach, composed of five separate axisymmetric structural shells and an inner cylinder wall, bolted together to form the vessel.

went all the way. Novel flotation devices such as the Eriez HydroFloat™ achieve improved coarse particle recovery through a fluidised bed region that acts as a barrier to sparger-induced turbulence in the upper part of the cell.

Flotation recovery of coarse particles has many benefits for the mining industry, most notably a cost benefit in terms of grinding. Induced gas flotation (IGF) is a treatment process that clarifies wastewaters (or other waters) by the removal of suspended removal is achieved by introducing very small bubbles of air or other gases into the water or wastewater.

The bubbles adhere to and enhance the buoyancy of the suspended oil which accelerates the rate at which the oil floats to the surface of the water where it. The goal of this paper is to present recent applications of Dissolved Air Flotation technology on a variety of raw water sources.

Descriptions and general design parameters of a typical flotation and a proprietary combined flotation and filtration process will be by: Phase I work successfully established methods for printing, optimization, and testing of novel-gas liquid contacting devices.

An economic analysis was completed to demonstrate the long-term benefits and commercial viability of scaling this approach to CO2 capture process design. A numerical and analytical investigation is performed on a dissolved air flotation (DAF) pilot tank by using the residence time distribution (RTD).

Abstract. The four-point optical probe is applied in a bubble column with an air–water system to investigate the bubble properties (local gas holdup, velocity, chord length, specific interfacial area, and frequency) over a range of gas superficial velocities. Thus, in the design of collection and treatment systems, minimizing detention time can limit the activity of the Desulfovibrio bacteria and thus the rate of sulfide production.

,3 Hydrogen Sulfide Release In enclosed vessels containing dissolved H2S at equilibrium, the concentration of H2S gas in the atmosphere will vary with the dissolved. ENVIRO-CELL™ EC-3 (3, BWPD Induced Gas Flotation Cell) The ENVIRO-CELL™ EC-3 Induced Gas Flotation Cell handles up to 3, BWPD.

ETS currently has (1) one unit immediately available for sale. IOM manuals and additional documentation available upon request. The plots show the superficial gas velocity corresponding to the three different cases shown in Fig.

Top: ˆc(1) 0 = ; Left: ˆc (2) 0 = ; Right: ˆc (3) 0 = The main effect of a higher value for ˆc0 (that is, ˆc0 >1) is that gas will reach the outlet faster and establish a stationary situation where the.

AutoFlot® Static Flotation Separator Induced Gas Flotation Separation System Horizontal Induced Static Flotation systems are designed to effectively remove free and emulsified oil(1)and suspended solids from water.

Each ASF unit consists of a horizontal cylindrical vessel that is divided into four in-line flotationFile Size: KB. Gas is induced through a controlling stainless steel needle valve to the eductors.

The unique nozzle/eductor Tridair™ Hydraulic IGF Tridair™ Hydraulic induced gas flotation removes up to 98% of insolubles and solids Issue 2 Page A1 design ensures even dispersion of the finely divided air/gas bubbles throughout the Size: KB.

A theoretical flotation device using a vacuum (for a novel) The reason though why I wanted to use a vacuum rather than gas is mostly because I don't want a simple blimp or balloon shape I wanted something distinctly unique which is why I was imagining a series of massive rings made of some ultra-light yet resilient material (I.e.A vortex set is used to disperse gas bubbles in the stream on dispersed gas units.

The figure above shows a dispersed gas units with hydraulic eductor schematic. Clean water from the effluent is pumped to a recirculation header (E) that feeds a series of venturo eductors (B). Water flowing through the eductor sucks gas from the vapor space (A) that is released at the nozzle (G) as a jet of.