1) Pumps are devices that use mechanical energy to move fluids by increasing their velocity, pressure, or elevation. There are two main types - positive displacement pumps which move a fixed volume of fluid, and dynamic pumps which develop high fluid velocity and convert it to pressure.
2) Positive displacement pumps include rotary pumps like gear, screw, lobe and vane pumps which move fluid from an inlet to outlet as a chamber rotates. Reciprocating pumps use pistons or plungers on an intake and discharge stroke.
3) Common dynamic pumps are centrifugal pumps which use an impeller and casing to discharge fluid at high velocity converted to pressure, and axial pumps which develop pressure via propeller action on
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
Pumps, Types of Pumps, Classification of Pumps and Characteristics of Pumps.Talal Khan
This Presentation Discus Pumps(Centrifugal and Positive Displacement) Also it Discusses other properties of pumps.
It also consists of Images and animations of the Pumps.
Positive displacement pumps are reciprocating and rotary pumps that move liquid by the positive displacement of liquid volume. In this presentation, you will learn the operating principles and performance characteristics of positive displacement pumps, what determines their capacity, pressure, horsepower and efficiency, and how NPSH is calculated. You will also learn the basic types of reciprocating and rotary pumps, including piston pumps, plunger pumps, diaphragm pumps, direct-acting steam and air pumps, and rotary lobe, vane, gear and screw pumps, and how these pumps differ from each other in design and performance.
Pump and pumps classification.Introduction of Pumps.Applications of Pumps.Types of pump.Centrifugal Pump. Diaphragm pump.lobe pump.Positive displacement pump
Gear pump. Uses of pump.
Pumps, Types of Pumps, Classification of Pumps and Characteristics of Pumps.Talal Khan
This Presentation Discus Pumps(Centrifugal and Positive Displacement) Also it Discusses other properties of pumps.
It also consists of Images and animations of the Pumps.
Positive displacement pumps are reciprocating and rotary pumps that move liquid by the positive displacement of liquid volume. In this presentation, you will learn the operating principles and performance characteristics of positive displacement pumps, what determines their capacity, pressure, horsepower and efficiency, and how NPSH is calculated. You will also learn the basic types of reciprocating and rotary pumps, including piston pumps, plunger pumps, diaphragm pumps, direct-acting steam and air pumps, and rotary lobe, vane, gear and screw pumps, and how these pumps differ from each other in design and performance.
Pump and pumps classification.Introduction of Pumps.Applications of Pumps.Types of pump.Centrifugal Pump. Diaphragm pump.lobe pump.Positive displacement pump
Gear pump. Uses of pump.
This Presentation is about working principle of Pumps.Basic Presentation regarding pumps , will definitely help beginners to learn pump types , their working , their parts etc.
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Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
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Cosmetic shop management system project report.pdfKamal Acharya
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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.
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/
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COLLEGE BUS MANAGEMENT SYSTEM PROJECT REPORT.pdfKamal Acharya
The College Bus Management system is completely developed by Visual Basic .NET Version. The application is connect with most secured database language MS SQL Server. The application is develop by using best combination of front-end and back-end languages. The application is totally design like flat user interface. This flat user interface is more attractive user interface in 2017. The application is gives more important to the system functionality. The application is to manage the student’s details, driver’s details, bus details, bus route details, bus fees details and more. The application has only one unit for admin. The admin can manage the entire application. The admin can login into the application by using username and password of the admin. The application is develop for big and small colleges. It is more user friendly for non-computer person. Even they can easily learn how to manage the application within hours. The application is more secure by the admin. The system will give an effective output for the VB.Net and SQL Server given as input to the system. The compiled java program given as input to the system, after scanning the program will generate different reports. The application generates the report for users. The admin can view and download the report of the data. The application deliver the excel format reports. Because, excel formatted reports is very easy to understand the income and expense of the college bus. This application is mainly develop for windows operating system users. In 2017, 73% of people enterprises are using windows operating system. So the application will easily install for all the windows operating system users. The application-developed size is very low. The application consumes very low space in disk. Therefore, the user can allocate very minimum local disk space for this application.
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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.
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2. Pump
A pump is a device used to move fluids such as liquids or slurries. It
increases the mechanical energy of the fluid. The additional energy can be
used to increase-
Velocity ( flow rate )
Pressure
Elevation
4. Positive Displacement
Constant volume of fluid is captured in cavities (an expanding cavity on the
suction side and a decreasing cavity on the discharge side)
within the pump and mechanical energy moves it from inlet to discharge.
It produces the same flow at a given speed (RPM) no matter the discharge
pressure.
A relief or safety valve on the discharge side is necessary as ,if operated
against a closed discharge valve, it will continue to produce flow until the
pressure in the discharge line are increased until the line bursts or the pump is
severely damaged - or both.
5. Dynamic Pumps
These pumps operate by developing a high liquid velocity and converting the
velocity to pressure in a diffusing flow passage.
Dynamic pumps usually have lower efficiencies than positive displacement
pumps, but also have lower maintenance requirements.
Dynamic pumps are also able to operate at fairly high speeds and high fluid
flow rates.
6. Rotary Pumps
In rotary pumps the chamber moves from inlet to discharge and back to inlet.
A wide variety available like:
Gear pumps, Screw pumps, Lobe pumps, Cam pumps, Vane pumps
Rotary pumps produce relatively constant output.
Types:
Single Rotor
Multiple Rotor
8. Features and Applications :
Precise transfer and metering.
High Speed
High pressure
No overhung bearing loads
Relatively quiet operations
Design accommodates wide variety of materials
No solids allowed
10. Features and Applications :
Slow Speed
Simple and Rugged design
Easy maintenance
Capable of pumping solids and floating debris
Minimum head as no collection sump required
Constant high efficiency with variable capacity
Long lifetime
12. Features and Applications :
Pass medium solids
No metal-to-metal contact
Reduced lift with thin liquids
Long term dry run (with lubrication to seals)
Non-pulsating discharge
Mainly used in food applications
13. Reciprocating Pumps
In a reciprocating pump, a volume of liquid is drawn into the cylinder through
the suction valve on the intake stroke and is discharged under positive
pressure through the outlet valves on the discharge stroke using a piston or
plunger.
Types:-
Piston Pump
Plunger Pump
Diaphragm Pump
15. Features and Applications :
Wide Pressure range.
Pressure can be controlled without affecting flow rate.
Only handles low flow rates.
Capable of moving viscous fluids, slurries, and abrasives with proper valve
design.
Pulsating discharge
Typically heavy and bulky
17. Features and Applications :
Wide Pressure range.
Pressure can be controlled without affecting flow rate.
High maintenance and operating costs
Capable of moving viscous fluids, slurries, and abrasives with proper valve
design.
Pulsating discharge
Typically heavy and bulky
19. Features and Applications:
Good dry running characteristics..
Good suction lift characteristics.
Good self priming capabilities.
Capable of handling highly viscous fluids.
Highly efficient up to 97% efficient.
20. Axial Flow Pumps
Axial flow pumps are also called propeller pump. These pumps develop
most of their pressure by the propelling or lifting action of the vanes on the
liquid.
Typically used in:
wet-pit drainage,
low-pressure irrigation,
storm-water applications
22. Centrifugal Pumps
A centrifugal pump consists of an impeller and an intake at its centre.
These are arranged so that when the impeller rotates, liquid is discharged by
centrifugal force into a casing surrounding the impeller.
The casing is there in order to gradually decrease the velocity of the fluid which
leaves the impeller at a high velocity. This velocity is converted to pressure which
is needed to discharge the fluid.
24. Centrifugal Pumps
Most common type of kinetic pump.
They are almost always more economical to own, operate and maintain.
Centrifugal pumps have the following features:
Pulsation free transfer without alteration of flow rate and total head.
High reliability in operation due to low number of moving parts.
High operating speed, directly coupled to high-speed electric motors.
Small dimensions and therefore low space requirement.
Low operating costs.
Excellent performance control by speed adjustment.
Applications with moderate to high flow and low head.
25. Terms you should know:
Flow
It is a volume measure to establish pump capacity.
Horse power
Term used to express amount of power available to drive a pump.
Brake Horse power
Term used to express amount of power required to drive a pump.
Pump efficiency
It indicates percentage of Brake horse power converted into useful work.
Shut off Head
Term used to express head developed by pump at zero flow
26. Terms you should know:
Head
A measure of the energy possessed by water at a given location in the
water system expressed in feet or a measure of the pressure
or force exerted by water expressed in feet.
Discharge Head
This is the vertical distance that you are able to pump
liquid. For example, if your pump is rated for a maximum head of 18
feet, this does not mean that you are restricted to 18 feet of pipe. You
can use 300 feet, so long as the final discharge point is not higher than
18 feet above the liquid being pumped.
27. Terms you should know:
Net Positive Suction Head Available (NPSHA)
The absolute pressure at the suction port of the pump.
NPSHA is a function of your system and must be calculated.
NPSHA = HA ± HZ - HF + HV – HVP
where HA = The absolute pressure on the surface of the supply tank liquid.
HZ = The vertical distance from the surface of the water to the pump
centerline.
HF = The friction formed in the suction piping
HV = The velocity head at the pump's suction
HVP =The vapour pressure of the water at its pumping temperature