INTRODUCTION TO HYDRAULIC MACHINES

We have seen various topics such as  force exerted by a jet on vertical flat plate,  force exerted by a jet on stationary inclined flat plate, force exerted by a jet on stationary curved plate, force exerted by a jet on a hinged plate,  force exerted by a jet on a curved plate, force exerted by a jet of water on a series of vanes,  force exerted by a jet of water on a series of radial curved vanes and basics of jet propulsion of ships in our recent posts. 

Now we will start here a new topic i.e. Hydraulic Machine with the help of this post. 

An introduction to hydraulic machine 

Let us first understand here the fundamental meaning of hydraulic machine. 

Hydraulic machines are basically defined as those machines which convert either hydraulic energy in to mechanical energy which will be further converted in to electrical energy or mechanical energy in to hydraulic energy. 

We can classify the hydraulic machines broadly in following two types as mentioned here

Hydraulic Turbine

Hydraulic Pump 

Hydraulic machines which convert hydraulic energy in to mechanical energy will be termed as hydraulic turbines. 

Let us see here Francis turbine as displayed here in following figure. 

Hydraulic machines which convert mechanical energy in to hydraulic energy will be termed as hydraulic pumps. 

Let us see here centrifugal pump as displayed here in following figure. 

Now we will be focused here and in our next post basically on the study of hydraulic turbines and hydraulic pumps. 

We will discuss hydraulic turbines in detail and further we will also find out the various types of hydraulic turbine such as Pelton turbine, Francis turbine and Kaplan turbine. 

Similarly, we will discuss hydraulic pumps in detail and further we will also find out the various types of hydraulic pumps such as reciprocating pumps and centrifugal pumps. 

Do you have any suggestions? Please write in comment box.  

Further, we will see hydraulic turbine and their classification, in the subject of fluid mechanics, with the help of our next post. 

Reference: 

Fluid mechanics, By R. K. Bansal 

Image courtesy: Google   

Also read  

Difference between Notches and Weirs 

Discharge over a triangular notch or weir 

Expression for discharge over a rectangular notch or weir 

Brayton cycle with reheating 

Solar energy in air conditioning 

Basic concept of bearings 

Main functions of bearings 

Bearing operating condition and various terminologies 

Kinetic energy correction factor and momentum correction factor 

Power absorbed in viscous flow 

Viscous resistance of journal bearings 

Viscous resistance of foot- step bearings