This document presents a project on pumps by MD. Arifuzzaman for his ME 201 class at Green University of Bangladesh. It includes an introduction, classification of pumps into positive displacement pumps and dynamic pumps, descriptions of centrifugal pumps and their working principles, advantages and disadvantages of pumps, and applications of pumps. It concludes that pumps are useful for transmitting fluids like water from one location to another.

1. ME 201
PROJECT PRESENTATION ON
PUMP
PRESENTED TO
MD.ALAMIN HOSSAIN
LECTURER
TEXTILE DEPARTMENT
GREEN UNIVERSITY OF BANGLADESH

2. Presented By
NAME:MD. ARIFUZZAMAN
ID:193003024
TEXTILE DEPARTMENT
GREEN UNIVERSITY OF BANGLADESH

3. Content
 Introduction
 Classification of pump
 Positive Displacement pump
 Classification of PDP
 Dynamic Pump
 Classification of Dynamic Pump
 Centrifugal pump and working principle
 Centrifugal pump characteristics
 Advantages
 Disadvantages
 Application of pump
 conclusion

4. What is a Pump?
• Pump is a mechanical device that
uses to transfer different fluids
from one location to another. It is a
hydraulic device that lifts fluids
from low to high levels, ,,,,,,,,,,

5. Classification Of Pump

6. Positive Displacement pump
• A positive displacement (PD) pump moves a fluid by repeatedly enclosing a fixed volume and
moving it mechanically through the system. The pumping action is cyclic and can be driven
by pistons, screws, gears, rollers, diaphragms or vanes.

7. • Positive Displacement Pump
Classification
• Positive displacement pumps displace a
known quantity of liquid with each
revolution of the pumping elements. This
is done by trapping liquid between the
pumping elements and a stationary casing.
Pumping element design include gears,
lobes, rotary pistons, vanes and screws.
• Classifications
• Although there are a wide variety
of pump designs, the majority can
be placed into two categories:
• 1.Reciprocating
• 2.Rotary.

8. RECIPROCATING POSITIVE
DISPLACEMENT PUMPS
ROTARY POSITIVE DISPLACEMENT
PUMPS
• A Reciprocating Positive Displacement pump
works by the repeated back-and-forth
movement (strokes) of either a piston,
plunger or diaphragm (Figure 1). These
cycles are called reciprocation.
• Rotary positive displacement pumps use the
actions of rotating cogs or gears to transfer
fluids, rather than the backwards and forwards
motion of reciprocating pumps.

9. Dynamic Pump
• 1.) Dynamic pumps
• Dynamic pumps impart velocity and
pressure to the fluid as it moves
past or through the pump impeller
and, ,,,,,,,,,,,,,,,,,,,,,,

10. Classification of Dynamic Pump
• Dynamic Pumps
• Dynamic pumps are classified into
different types but some of them
are discussed below like
Centrifugal, Vertical centrifugal,
Horizontal centrifugal, Submersible,
and Fire hydrant systems.
TYPES OF DP:
1). Centrifugal Pumps
2). Vertical Centrifugal Pumps
3). Horizontal Centrifugal Pumps
4). Submersible Pumps
5). Fire Hydrant Systems

11. Centrifugal Pump Working Principle
WORKING PRINCIPLE
• CENTRIFUGAL PUMP
• A Pump is generally used to induce
flow or raise the pressure of a
liquid. Centrifugal pumps are a
category of Dynamic pumps.
- Liquid enters the pump casing at the
impeller eye.

12. Working principle
• - Velocity energy is imparted to the
liquid by means of the centrifugal force
produced by rotation of the impeller
and the liquid is radially pushed out
towards the impeller periphery.
- The velocity energy of liquid is converted to
pressure energy by directing it to an expanding
volute design casing in a volute type centrifugal
pump or diffusers in a turbine pump.

13. • Working principle
• Pumps are primarily classified as dynamic pumps and positive displacement pumps. As
explained in theory above, dynamic pumps operate by developing a high liquid velocity.
Positive displacement pumps operate by forcing a fixed volume of liquid.
• The centrifugal pump working principle animation video describes the theory of operation of
both volute and turbine pumps.

14. Advantages & Disadvantage of Pump
ADVANTAGES OF PUMP: DISADVANTAGES OF PUMP:
• As there is no drive seal so there is
no leakage in the pump.
• There are very less frictional
losses.
• Produce cavitation.
• Corrosion.

15. Application of pump
• These use to transmit water from one place to
another place.
• As we already discussed Pumping Water from one
place to another place.

16. Conclusion
• The pump-controlled hydraulic system is a promising solution for high -efficiency
construction machinery. However, the linear actuator's dynamic response and tracking
accuracy are not satisfactory in its current level.