This document summarizes different types of pumps used in Bangladesh including centrifugal pumps, submersible pumps, and vertical turbine pumps. It describes the basic design and operation of each type of pump, including key components like impellers and casings. The advantages and disadvantages of each pump type are outlined, along with their common applications. Force pumps and centrifugal pumps are described as pumping water from below ground level. Submersible pumps are designed to operate fully submerged, while vertical turbine pumps require above-ground motor housings but can reach greater depths than other pump types. Pump selection depends on factors like installation and maintenance requirements, efficiency, and startup characteristics.
Levels in planning, Functional requirements of water resources projects, steps in
water resources planning, Environmental aspects in water resources planning.
OPEN CHANNEL FLOW AND HYDRAULIC MACHINERY
Open channel flow: Types of flows – Type of channels – Velocity distribution – Energy and momentum correction factors – Chezy’s, Manning’s; and Bazin formula for uniform flow – Most Economical sections. Critical flow: Specific energy-critical depth – computation of critical depth – critical sub-critical – super critical flows
Non-uniform flows –Dynamic equation for G.V.F., Mild, Critical, Steep, horizontal and adverse slopes-surface profiles-direct step method- Rapidly varied flow, hydraulic jump, energy dissipation
Levels in planning, Functional requirements of water resources projects, steps in
water resources planning, Environmental aspects in water resources planning.
OPEN CHANNEL FLOW AND HYDRAULIC MACHINERY
Open channel flow: Types of flows – Type of channels – Velocity distribution – Energy and momentum correction factors – Chezy’s, Manning’s; and Bazin formula for uniform flow – Most Economical sections. Critical flow: Specific energy-critical depth – computation of critical depth – critical sub-critical – super critical flows
Non-uniform flows –Dynamic equation for G.V.F., Mild, Critical, Steep, horizontal and adverse slopes-surface profiles-direct step method- Rapidly varied flow, hydraulic jump, energy dissipation
A borehole is a narrow shaft bored in the ground, either vertically or horizontally. A borehole may be constructed for many different purposes, including the extraction of water, other liquids (such as petroleum) or gases (such as natural gas), as part of a geotechnical investigation, environmental site assessment, mineral exploration, temperature measurement, as a pilot hole for installing piers or underground utilities, for geothermal installations, or for underground storage of unwanted substances, e.g. in carbon capture and storage.
Fluid Mechanics Chapter 5. Dimensional Analysis and SimilitudeAddisu Dagne Zegeye
Introduction, Dimensional homogeneity, Buckingham pi theorem, Non dimensionalization of basic equations, Similitude, Significance of non-dimensional numbers in fluid flows
A borehole is a narrow shaft bored in the ground, either vertically or horizontally. A borehole may be constructed for many different purposes, including the extraction of water, other liquids (such as petroleum) or gases (such as natural gas), as part of a geotechnical investigation, environmental site assessment, mineral exploration, temperature measurement, as a pilot hole for installing piers or underground utilities, for geothermal installations, or for underground storage of unwanted substances, e.g. in carbon capture and storage.
Fluid Mechanics Chapter 5. Dimensional Analysis and SimilitudeAddisu Dagne Zegeye
Introduction, Dimensional homogeneity, Buckingham pi theorem, Non dimensionalization of basic equations, Similitude, Significance of non-dimensional numbers in fluid flows
Impact of jets - Euler’s equation - Theory of roto-dynamic machines – various efficiencies– velocity
components at entry and exit of the rotor- velocity triangles - Centrifugal pumps– working principle
- work done by the impeller - performance curves - Reciprocating pump- working principle – Rotary
pumps –classification.
Hello everyone this is N Murali Mohan, working as a assistant professor in JNTUA college of engineering pulivendula, in this chapter covers the all topics, if any topics missing please inform I will correct and then upload.. thank you all
Pumps are used to add energy to fluids (gases, liquids, or slurries) in order to produce flow or increase pressure. They can perform many different functions, including moving a fluid from one location to another, recirculating a fluid in a closed system, such as in a heating or cooling system, and providing pressure, such as in hydraulic systems. These functions are performed primarily by two different types of pumps: centrifugal and positive displacement.
in industries like iron and glass the fluid for hydraulic machines are delivered by multistage pumps. this is the basic introduction for clearing the concept of multi stage pumps.
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.
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.
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.
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.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
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CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
4. Force mode pump: Force mode is where
the pump is placed below the ground water
level & propels the ground water to the
surface.
5. CENTRIFUGAL PUMP
A centrifugal pump may be defined as one in
which an impeller rotating inside a close –
fitting case draws in the liquid at the centre
and, by virtue of centrifugal force, throws out
through an opening at the side of the casing.
6.
7.
8. Fluid is directed to the
impeller & is forced into a
circular movement by
rotation of impeller
vane.
The fluid is then pressed
out of the impeller by
means of centrifugal
force.
Then the fluid leaves the
impeller channel with
increased pressure &
velocity.
Fluid velocity is also
partly converted into
pressure by the pump
casing & it leaves the
pump through the outlet.
9. ADVANTAGE
less frictional losses.
Simple in construction.
Low initial cost.
Can handle liquid in solid suspension.
Produce a constant steady discharge.
DISADVANTAGE
Develop cavitation.
Relatively poor suction power.
APPLICATION
Iirrigation.
Sewage service.
Domestic water supply.
10. SUBMERSIBLE PUMP
submersible pump is a type of construction in
which a tightly seal driving motor is coupled
directly to the turbine bowl assembly and is
designed to be submerged in the fluid pumped.
Power is supplied to the motor by a highly
insulated waterproof electrical cable running
from the motor to the power source.
11. PUMP ELEMENT
It consists of propelling shaft, usually made of stainless
steel and bronze impellers. Water enters the pump
through a screen located between motor and the pump
ELECTRIC MOTOR
The motor is enclosed in steel case filled with light oil of
high dielectric strength. A mercury seal placed directly
above the armature prevents oil leakage or water
entrance at point where the drive shaft passes through
the case to the impellers.
13. A submersible pump pushes water to
the surface by converting rotary
energy into kinetic energy into
pressure energy
This is done by the water being
pulled into the pump: first in the intake,
where the rotation of the impeller
pushes the water through the diffuser.
Produced liquids, after being
subjected to great centrifugal forces
caused by the high rotational speed
of the impeller, lose their kinetic energy
in the diffuser where a conversion of
kinetic to pressure energy takes place.
From there it goes to the surface. This
makes the pump move the liquid to
greater distances as compared to
other forms of pumping.
14. ADVANTAGE
Prevents pump cavitation .
It never has to be primed .
Ground-surface noise is eliminated.
It is safe compared to other pumps.
Efficiency is high.
DISADVANTAGE
Operating parts are inaccessible and difficult to inspect
The cost of submersible pump is higher than that of an ordinary pump
If the pump lose its seals causing substantial damage to the unit
APPLICATION
Draining
sewage pumping, general industrial pumping and slurry pumping.
residential, commercial, municipal and industrial water extraction.
Deep well drilling, mine dewaterig & sea water handling
15. A vertical turbine pump is a vertical axis centrifugal
or mixed flow type pump comprising of stages
which accommodate rotating impellers and
stationary bowls possessing guide vanes. These
pumps are used where the pumping water level is
below the limits of volute centrifugal pump.
16. It has three main parts
Pump Element: The pump element is made up of one
or more bowls or stages. Each bowl consists of an
impeller and diffuser.
Discharge Column: It connects the bowl assembly and
pump head and conducts water from former to later.
Discharge head: It consists of base from which the
discharge column, bowl assembly and shaft
assembly are suspended.
18. turbine pumps have smaller
diameter impellers with rows of
numerous small vanes. These
vanes re-circulate the fluid as it
travels from the suction end to the
outlet. Specifically, fluid enters at the
edge of an impeller blade and is
accelerated not only tangentially in
the direction of rotation, but also
radically outward into the casing
channel by centrifugal force. As the
fluid strikes the casing wall it is
redirected back onto an adjacent
blade (vane) where additional energy
is imparted.
19. ADVANTAGE
Generates high head and high discharge pressure
No priming is required
Pump can be powered by an AC electric motor or IC engine
Can be used where the water surface is below the practical limits.
DISADVANTAGE
The initial and maintenance costs are higher
No easy way to adjust performance
Complications in the installation, checking and maintenance of this
pump
Impeller requires regular adjustment to preserve high efficiency
APPLICATION
Water and irrigation supply
Cooling water circulation in conventional and renewable power
stations
20. Pump House Requirements: A VTP motor is
aboveground, it requires a pump house to protect it
from weather and vandalism, as well as to suppress
noise. On the other hand, a submersible system does
not require a pump house at all. Its underground
location reduces risk of damage from weather,
vandalism, and accidents. In addition a submersible
does not generate the noise like a VTP.
21. Continuing Maintenance: A VTP requires regular
lubrication, packing, and shaft or impeller adjustments. This
simply is not the case with a submersible. It is designed to
spend its entire life under water with no additional
maintenance.
Efficiency and Starting: In VTP the motor efficiency is
lost due to frictional losses in the line shaft. These losses are
typically one to two horsepower per 100 feet of depth and
generally exceed the electrical losses in the drop cable for a
submersible system. In a VTP installation the motor must not
only moving the pump but also the entire drive shaft and its
associated hardware. Submersible installations have a lower
moment of inertia, which means faster and easier starting.