Affinity Laws for Variable Speed Centrifugal PumpsVijay Sarathy
In retrofit jobs, depending on the application & plant revamps, fixed speed pumps are retrofitted with a variable frequency drive (VFD) to enable them to be operated at a different set of operating conditions. In Brownfield projects, design engineers would sometimes face situations where the manufacturer's datasheets indicate performance curves only for rated speeds & it becomes necessary to evaluate what are the other operating ranges the same pump can be used for after retrofitting.
In the following short article, I've put up some points covering
1. Advantages of Variable Frequency Drives
2. When VFD’s Are Not Advantageous
3. Selection Process - New Pumps & Retrofit Pumps
4. Example Case Study to generate Performance Curves for VSD Retrofit (Single Stage End Suction Centrifugal Pump)
Affinity Laws for Variable Speed Centrifugal PumpsVijay Sarathy
In retrofit jobs, depending on the application & plant revamps, fixed speed pumps are retrofitted with a variable frequency drive (VFD) to enable them to be operated at a different set of operating conditions. In Brownfield projects, design engineers would sometimes face situations where the manufacturer's datasheets indicate performance curves only for rated speeds & it becomes necessary to evaluate what are the other operating ranges the same pump can be used for after retrofitting.
In the following short article, I've put up some points covering
1. Advantages of Variable Frequency Drives
2. When VFD’s Are Not Advantageous
3. Selection Process - New Pumps & Retrofit Pumps
4. Example Case Study to generate Performance Curves for VSD Retrofit (Single Stage End Suction Centrifugal Pump)
the presentation includes basic ideas about water pumps, various terminology generally used for the pumps, classification of pumps and ideas about the types its construction and working
the presentation includes basic ideas about water pumps, various terminology generally used for the pumps, classification of pumps and ideas about the types its construction and working
Here you are watching PowerPoint Presentation of EDM (Electrical Machining Process). It is a kind of unconventional machining process.Thanks for watching.
I used Mutual Inductance principle in which the two coils of wire are brought into close proximity with each other so the magnetic field from one links with the other, a voltage will be generated in the second coil as a result magnetically-induced voltage only happens when the magnetic field flux is present.
a complete description of the particle size distribution of particles in different categories. Sedimentation is a phenomenon that completely work with the size of particles.
A slide with a complete description of Belt and Conveyors. I hope after reading this presentation a reader can completely understand the mechanism of belts and conveyors.
Chemical reaction engineering is that engineering activity which is concerned with the exploitation of chemical reactions on commercial scale.
The areas of different fields of science like:
Oil Refining
Pharmaceuticals
Biotechnology
Chemical Industries
Sustainable Development
Chemical reaction engineering is that engineering activity which is concerned with the exploitation of chemical reactions on commercial scale.
The areas of different fields of science like:
Oil Refining
Pharmaceuticals
Biotechnology
Chemical Industries
Sustainable Development
This slide completely describes you about the stuff include in it and also everything about chemical engineering. Fluid Mechanics. Thermodynamics. Mass Transfer Chemical Engineering. Energy Engineering, Mass Transfer 2, Heat Transfer,
This slide completely describes you about the stuff include in it and also everything about chemical engineering. Fluid Mechanics. Thermodynamics. Mass Transfer Chemical Engineering. Energy Engineering, Mass Transfer 2, Heat Transfer,
This slide completely describes you about the stuff include in it and also everything about chemical engineering. Fluid Mechanics. Thermodynamics. Mass Transfer Chemical Engineering. Energy Engineering, Mass Transfer 2, Heat Transfer,
Difference between batch,mixed flow & plug-flow reactorUsman Shah
This slide completely describes you about the stuff include in it and also everything about chemical engineering. Fluid Mechanics. Thermodynamics. Mass Transfer Chemical Engineering. Energy Engineering, Mass Transfer 2, Heat Transfer,
This slide completely describes you about the stuff include in it and also everything about chemical engineering. Fluid Mechanics. Thermodynamics. Mass Transfer Chemical Engineering. Energy Engineering, Mass Transfer 2, Heat Transfer,
This slide completely describes you about the stuff include in it and also everything about chemical engineering. Fluid Mechanics. Thermodynamics. Mass Transfer Chemical Engineering. Energy Engineering, Mass Transfer 2, Heat Transfer,
This slide completely describes you about the stuff include in it and also everything about chemical engineering. Fluid Mechanics. Thermodynamics. Mass Transfer Chemical Engineering. Energy Engineering, Mass Transfer 2, Heat Transfer,
This slide completely describes you about the stuff include in it and also everything about chemical engineering. Fluid Mechanics. Thermodynamics. Mass Transfer Chemical Engineering. Energy Engineering, Mass Transfer 2, Heat Transfer,
This slide completely describes you about the stuff include in it and also everything about chemical engineering. Fluid Mechanics. Thermodynamics. Mass Transfer Chemical Engineering. Energy Engineering, Mass Transfer 2, Heat Transfer,
This slide completely describes you about the stuff include in it and also everything about chemical engineering. Fluid Mechanics. Thermodynamics. Mass Transfer Chemical Engineering. Energy Engineering, Mass Transfer 2, Heat Transfer,
This slide completely describes you about the stuff include in it and also everything about chemical engineering. Fluid Mechanics. Thermodynamics. Mass Transfer Chemical Engineering. Energy Engineering, Mass Transfer 2, Heat Transfer,
How to Create Map Views in the Odoo 17 ERPCeline George
The map views are useful for providing a geographical representation of data. They allow users to visualize and analyze the data in a more intuitive manner.
How to Split Bills in the Odoo 17 POS ModuleCeline George
Bills have a main role in point of sale procedure. It will help to track sales, handling payments and giving receipts to customers. Bill splitting also has an important role in POS. For example, If some friends come together for dinner and if they want to divide the bill then it is possible by POS bill splitting. This slide will show how to split bills in odoo 17 POS.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
7. Principle of Electrostatic Precipitator:
Electrodes at high voltage create a corona effect
(ionized atmosphere) surrounding them. This
charges the passing particles. Once charged,
particles are subject to a transverse electrostatic
force that pulls them toward the collecting plates.
Plates are periodically “rapped” (vibrated) to make
the collected particles fall down into a receiver
basket in the bottom of the apparatus.
11. Construction of Electrostatic Precipitator:
It consists of thin wires called discharge or emitting electrodes and
other set called collecting electrodes in the form of pipes or plates.
The emitting electrodes are placed in the center of pipes or midway
between two plates and are connected usually to negative polarity of
high voltage source. The collecting electrodes are connected to
the positive of the source.
Steps in the process of precipitation:-
• Ionization of gases and charging of dust particles.
• Migration of the particle to the collector.
• Deposition of charged particles on the collecting surface
• Dislodging of particles from the collecting surface.
12. • Precipitator casing
• Hoppers
• Gas Distribution
System
• Collecting
Electrode System
• Emitting Electrode
System
• Rapping
• Reactifier
13. Working of Electrostatic Precipitator:
Dust particles are imparted an electric charge in a corona
discharge and then the charged particles are attracted in a strong
electrostatic field and precipitated onto the collector electrodes.
14.
15.
16.
17.
18. Types of Electrostatic Precipitator:
o Plate Wire Precipitator
o Tabular Precipitator
o Wet Precipitator
19. Plate Wire Precipitator:
In a plate wire precipitator, gas flows between parallel plates
of sheet metal and high voltage electrodes. These electrodes
are long wires weighted and hanging between the plates.
With each flow path, gas flows must pass each wire in
sequence as it flows through the unit. The plate wire
precipitator allow many flow lanes to operate in parallel and
each lane can be quite tall. As a result this type of
precipitator is well-suited for handling large.
20.
21.
22. Tabular Precipitator:
The original ESPs were tabular
like the smokestacks on which
they were placed with the high
voltage electrode running
along the axis of the tube.
23. The process gas vertically
enters the ESP from the
bottom by means of a Gas
Distribution System. The
particles are electrically
charged by the application
of high voltage, the
charged particles are
transported by
electrostatic attraction to
the Collecting Electrodes,
where they are
subsequently flushed off
periodically by a flushing
system.
Wet Precipitator:
24.
25. Applications of Electrostatic Precipitator:
Pollution control in Industrial Processes.( Chemical industries, Petroleum
industries, etc.
Static electricity is used in pollution control by applying a static charge to
dirt particles in the air and then collecting those charged particles on a plate
or collector of the opposite electrical charge.
Handles very large gas volumes and heavy dust loads with low pressure
drop.
In many industrial plants, particulate matter created in
the manufacturing process is released as dust in the hot exhaust gases. If
released into the atmosphere, the particulates reduce visibility, can contribute
to climate change, and lead to serious health problems in humans, including
lung damage and bronchitis. Fine particles that are smaller than 2.5 microns
(0.0001 inch) in diameter can be especially dangerous because they are
drawn deep into the lungs and can trigger inflammatory reactions.
Electrostatic precipitators are important tools in the process of cleaning up
flue gases.
