Download to read offline
Uploaded byKANPUR INSTITUTE OF TECHNOLOGY KANPUR
PPT ON RECIPROCATING PUMP.pptx
The document provides information about reciprocating pumps. It defines a reciprocating pump as a positive displacement machine that develops energy in a fluid through mechanical energy. It then describes the basic working of a reciprocating pump, how the up and down motion of the piston creates suction and pressure to draw fluid in and push it out of the pump. It includes diagrams showing the piston positions. Finally, it provides formulas for calculating the discharge, weight, work done, and power required for a reciprocating pump based on factors like cylinder diameter, stroke length, crank radius, and rpm.
More Related Content
Similar to PPT ON RECIPROCATING PUMP.pptx
More from KANPUR INSTITUTE OF TECHNOLOGY KANPUR
PPT ON RECIPROCATING PUMP.pptx
- 1. KALI CHARAN NIGAMINSTITUTE OF TECHNOLOGY, BANDA LECTURE ON RECIPROCATING PUMP FLUID MECHANICS (KME302) ( III SEMESTER ) BY : DEEPAK KUMAR YADAV ME DEPARTMENT
- 2. RECIPROCATING PUMP Themachine whose functioning depend essentially on the change of volume of a certain amount of fluid within the machine are known as positive displacement machines. The machine developing energy of the fluid from the mechanical energy is known as reciprocating pump.
- 3. WORKING OF RECIPROCATING PUMP When crank starts rotating, the piston moves to and fro in the cylinder. When crank is at A, the piston is at the extreme left position in the cylinder. As the crank is rotating from A to C, the piston is moving towards right in the cylinder. The movement of the piston towards right creates a partial vacuum in the cylinder. But on the surface of the liquid in the sump atmospheric pressure is acting, which is more then the pressure inside the cylinder. The liquid is forced in the suction pipe from the sump. This liquid opens the suction valve and enters the cylinder.
- 4. WORKING OF RECIPROCATING PUMP Whencrank is rotating from C to A, the piston is moving towards left in the cylinder. The movement of the piston towards left increases the pressure of the liquid inside the cylinder more than the atmospheric pressure. Hence suction valve closed and delivery valve opens. The liquid is forced into the delivery pipe and is raised to a required height.
- 5. DISCHARGE THROUGH A RECIPROCATINGPUMP Consider a single acting reciprocating pump Let D = Diameter of the cylinder A = Cross-sectional area of the piston = r = Radius of crank N = R.P.M. of the crank L = Length of the stroke = 2 x r Volume of water delivered in one revolution or discharge of water in one revolution = Area x Length of stroke = A x L Number of revolution per second =
- 6. DISCHARGE THROUGH A RECIPROCATINGPUMP Discharge of the pump per second, Q= Discharge in one revolution x No. of revolution per sec. = = Weight of water delivered per second, W =
- 7. WORK DONE BYRECIPROCATING PUMP Work done by the reciprocating pump per second is given by the relation as Work done per second = weight of water lifted per second x Total height through which water is lifted = Weight of water is given by = Work done per second = Power required to drive the pump, in KW P=
- 8.