Fluidization is the process of transforming fine solids into a fluid-like state using gas or liquid. It involves contacting phases in fluidized beds which allows for continuous, controlled operations and high heat and mass transfer. Fluidized beds are widely used in industrial applications like catalytic cracking, drying, and gas-solid reactions due to advantages such as good mixing and heat transfer, ease of operation, and ability to handle large quantities. However, fluidized beds can also result in particle attrition and non-uniform residence times.
The processing technique employing a suspension or fluidization of small solid particles in a vertically rising stream of fluid usually gas so that fluid and solid come into intimate contact. This is a tool with many applications in the petroleum and chemical process industries. Suspensions of solid particles by vertically rising liquid streams are of lesser interest in modern processing, but have been shown to be of use, particularly in liquid contacting of ion-exchange resins. However, they come in this same classification and their use involves techniques of liquid settling, both free and hindered (sedimentation), classification, and density flotation.
Slides for the eLearning course Separation and purification processes in biorefineries (https://open-learn.xamk.fi) in IMPRESS project (https://www.spire2030.eu/impress).
Section: Mass transfer processes
Subject: 3.2 Equipment
Different settling methods in mechanical operations Jaydrath Sindhav
Its part of sedimentation which is covered under the Mechanical operations. It contains the gravity sedimentation, clarifier and classifiers, sink and float method, gravity and sorting classifiers, differential settling methods etc....
Its just gives basic concept of sedimentation.
Slides for the eLearning course Separation and purification processes in biorefineries (https://open-learn.xamk.fi) in IMPRESS project.
Section: Distillation
Subject: 1.1 Vapor Liquid Equilibrium
it is a mass transfer operation use in chemical industries
it is a simple diffusion of solid to liquid phase and foam a new concentrate liquid solution
it is base on simple diffusion how to work in industries this operation
it is use for pharma, seeds and oil industries.
The processing technique employing a suspension or fluidization of small solid particles in a vertically rising stream of fluid usually gas so that fluid and solid come into intimate contact. This is a tool with many applications in the petroleum and chemical process industries. Suspensions of solid particles by vertically rising liquid streams are of lesser interest in modern processing, but have been shown to be of use, particularly in liquid contacting of ion-exchange resins. However, they come in this same classification and their use involves techniques of liquid settling, both free and hindered (sedimentation), classification, and density flotation.
Slides for the eLearning course Separation and purification processes in biorefineries (https://open-learn.xamk.fi) in IMPRESS project (https://www.spire2030.eu/impress).
Section: Mass transfer processes
Subject: 3.2 Equipment
Different settling methods in mechanical operations Jaydrath Sindhav
Its part of sedimentation which is covered under the Mechanical operations. It contains the gravity sedimentation, clarifier and classifiers, sink and float method, gravity and sorting classifiers, differential settling methods etc....
Its just gives basic concept of sedimentation.
Slides for the eLearning course Separation and purification processes in biorefineries (https://open-learn.xamk.fi) in IMPRESS project.
Section: Distillation
Subject: 1.1 Vapor Liquid Equilibrium
it is a mass transfer operation use in chemical industries
it is a simple diffusion of solid to liquid phase and foam a new concentrate liquid solution
it is base on simple diffusion how to work in industries this operation
it is use for pharma, seeds and oil industries.
wholw Content is covered in this presentation .it will give u a basic idea and types about leaching and it will also provide u information via Diagrams .
Slides for the eLearning course Separation and purification processes in biorefineries (https://open-learn.xamk.fi) in IMPRESS project (https://www.spire2030.eu/impress).
Section: Mass transfer processes
Subject: 3.1 Design principles
The first lecture in the module Particle Technology, delivered to second year students who have already studied basic fluid mechanics. Some applications of Particle Technology are described, in industry and nature, and particle size analysis and means of representing the data. The format for the laboratory classes for the module and their reports are covered.
This is a presentation on agitation and mixing of fluids. Agitation is the heart of all chemical methods. Every production process require agitation. That's why it is very important to make sure that the agitation is properly handled in a process. In this presentation we are going to discuss about agitation of fluids only. It doesn't contain the whole thing but the basic ideas about agitation.
Industrial pharmacy is a discipline which includes manufacturing, development, marketing and distribution of drug products including quality assurance of these activities
The reasons for the increasing of large scale manufacturing
Economic – As the scale of manufacturing batches increases so, proportionally, does the cost of production decreases
Accuracy – The larger the quantities of materials involved so, proportionally, is the accuracy of measurements increased
Greater scope – The increasing complexity of modern therapy has made it virtually impossible to prepare many medicaments on a small scale
wholw Content is covered in this presentation .it will give u a basic idea and types about leaching and it will also provide u information via Diagrams .
Slides for the eLearning course Separation and purification processes in biorefineries (https://open-learn.xamk.fi) in IMPRESS project (https://www.spire2030.eu/impress).
Section: Mass transfer processes
Subject: 3.1 Design principles
The first lecture in the module Particle Technology, delivered to second year students who have already studied basic fluid mechanics. Some applications of Particle Technology are described, in industry and nature, and particle size analysis and means of representing the data. The format for the laboratory classes for the module and their reports are covered.
This is a presentation on agitation and mixing of fluids. Agitation is the heart of all chemical methods. Every production process require agitation. That's why it is very important to make sure that the agitation is properly handled in a process. In this presentation we are going to discuss about agitation of fluids only. It doesn't contain the whole thing but the basic ideas about agitation.
Industrial pharmacy is a discipline which includes manufacturing, development, marketing and distribution of drug products including quality assurance of these activities
The reasons for the increasing of large scale manufacturing
Economic – As the scale of manufacturing batches increases so, proportionally, does the cost of production decreases
Accuracy – The larger the quantities of materials involved so, proportionally, is the accuracy of measurements increased
Greater scope – The increasing complexity of modern therapy has made it virtually impossible to prepare many medicaments on a small scale
Heat is a form of energy. According to the principle of thermodynamics whenever a physical or chemical transformation occurs heat flow into or leaves the system.
A number of sources of heat are used for industrial scale operations steam and electric power is the chief sources to transfer heat. It is essential to cover steam without any loses to the apparatus in which it is used. The study of heat transfer processes helps in be signing the plant efficiently and economically
introduction of condensation, what is it types etc. horizontal condenser, vertical condenser, process aplications, all examples related to the process,
A key vacuum deposition technique for making highly homogenous and high-performance solid-state thin films and materials is Chemical vapor deposition. The types of CVD systems and their key applications would also be discussed in this presentation. It is a key bottom-up processing technique, widely used in graphene fabrication, also the fabrication of various oxides, nitrides is possible, with this technique.
The heat transfer duty or thermal performance of heat exchangers can be improved by heat transfer
enhancement techniques. Coiled wire insert has been used as one of the passive heat transfer enhancement
techniques and are the most widely used tubes in several heat transfer applications, for example, heat recovery
processes, air conditioning and refrigeration systems, chemical reactors, food and dairy processes, Thermal
Power plants, radiators for space vehicles, automobiles etc. These techniques broadly are of three types viz.
passive, active and compound techniques. The present paper is a review of the passive augmentation techniques
used in the recent past.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
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3. What is Fluidization?
The operation by which fine solids are
transformed into a fluidlike state through
contact with a gas or liquid.
4. Some Key Terminology
Attrition: breakdown of particles
Choking: collapse of a dilute-phase suspension
into a dense-phase flow as the gas velocity is
reduced at constant solids flow
Circulating fluidized bed: configuration
intended to send particles around in a loop
continuously, with no upper interface within the
bed
5. Some Key Terminology
Downer: column where particles are made to
fall through under gravity, usually with cocurrent
gas flow
Distributor or Grid: support plate at bottom
which introduce the gas to the bottom of the
bed and supports the weight of the bed when it
is shut down
Elutriation: tendency for fine particles to be
preferentially entrained from the reactor
6. Some Key Terminology
Fast fluidization: flow regime whereby there is
a relatively dense suspension, but no distinct
upper surface, and a superficial velocity generally
at least 3 m/s
Fines: generally particles smaller than 37 µm in
diameter (smallest regular sieve size)
Freeboard: region extending from top of bed
surface to top of reactor vessel
7. Some Key Terminology
Interstitial gas: gas between the particles in
dense suspension
Porosity: fraction of gas in bed/given region as
a whole or only inside the particles; sometimes
used interchangeably with voidage
Riser: column where particles are carried
upwards by the gas, with no distinct bed surface
8. Some Key Terminology
Segregation: tendency for particles to gather in
different zones according to their size and/or
density
Solids: used synonymously with particles
Superficial velocity: gas flow rate divided by
total column surface area
9. Some Key Terminology
Transport disengaging zone: region in
freeboard beginning at bed surface in which
particle flux decreases with height and above
which the entrainment is independent of height
Voidage (or void fraction): fraction by volume
of suspension or bed which is occupied by the
fluid
11. Contacting Methods
Batch, cocurrent, backmix, crossflow, countercurrent
Solids may often be represented by backmix flow
By using proper baffling and staging of units, and
with negligible entrainment of solids, the contacting
in fluidized beds can be made to approach closely
the usually desirable extreme of cuntercurrent plug
flow
For good design, proper contacting of phases is
essential
12.
13.
14.
15. Advantages of Fluidized Beds
The smooth, liquid-like flow of particles allows
continuous automatically controlled operations with
ease of handling.
The rapid mixing of solids leads to nearly isothermal
conditions throughout the reactor, hence the operation
can be controlled simply and reliably.
It is suited to large-scale operations.
16. Advantages of Fluidized Beds
The circulation of solids between two fluidized beds
makes it possible to transport the vast quantities of heat
produced or needed in large reactors.
Heat and mass transfer rates between gas and particles
are high when compared with other modes of
contacting.
The rate of heat transfer between a fluidized bed and an
immersed object is high, hence heat exchangers within
fluidized beds require relatively small surface areas.
17. Disadvantages of Fluidized Beds
The difficult-to-describe flow of gas, with its large
deviation from plug flow and the bypassing of solids by
bubbles, represents an inefficient contacting system.
The rapid mixing of solids in the bed leads to
nonuniform residence times of solids in the reactor.
Friable solids are pulverized and entrained by the gas.
Erosion of pipes and vessels from abrasion by particles.
For noncatalytic operations at high temperature the
agglomeration and sintering of fine particles can
necessitate a lowering in temperature of operation,
reducing the reaction rate.
18. Commercial Applications
Solid-Catalysed Gas-Phase Reactions:
Fluid catalytic cracking, reforming
Fischer-Tropsch synthesis
Phthalic and maleic anhydride
Acrylonitrile and aniline
Chlirination and bromination of hydrocarbons
Polyethylene and polypropylene
Oxidation of SO2 to SO3
19. Commercial Applications
Gas-Solid Reactions:
Roasting or ores (ZnS, Cu2S, nickel sulphides, etc.)
Combustion and incineration
Gasification, coking and pyrolysis/carbonization
Calcination (limestone, phosphates, aluminium
hydroxide)
Flurination of uranium oxide
Fluid coking
Reduction of iron oxide
Catalyst regeneration
30. Pilot Plant for Fluidized Drying of
Air with Adsorbent
The drying of air by circulation of large
(3.2 to 4.8 mm) silica gel beads of
multistage fluidized adsorption.
To reduce the humidity from 0.00191 to
0.0015 kg/kg pilot plant uses a five-stage
fluidized absorber 1.2 m square in cross
section, 6.1 m high, a pressure drop of
127 cm H2O.
A perforated plate distributor with rubber
flaps at the lower end of the downcomers
to assure steady flow of particles from
stage to stage.