Skip to main content

Thermal Power Plant : Principle, Parts, Working, Advantages and Disadvantages

Basic Introduction or Principle: We all are aware with the term "Generator". A device which converts mechanical energy into electrical energy is known as generator. This generator makes rotate with the help of some kind of external energy. When this energy extract from the energy of steam, the plant is known as steam power plant.  A simple steam plant works on Rankine cycle. In the first step, water is feed into a boiler at a very high pressure by BFP (boiler feed pump). This high pressurized water is heated into a  boiler   which converts it into high pressurized super heated steam. This high energized steam passes through steam  turbine  (a mechanical device which converts flow energy of fluid into mechanical energy) and rotate it. Owing to extract full energy of steam, three stage turbines is used which is known as LPT (Low pressure turbine), IPT (intermediate pressure turbine) and HPT (High pressure turbine). The turbine shaft is connected to the generator rot
1 comment

Introduction Of 2D Drawing Tool (polygon tool)

Polygon:

Short key : POL
Polygon is the shape which has more than two sides and each side is equal length. There are two methods to draw polygon in AutoCAD.

1. With the reference of a circle:

This method is used when we know the radius of the polygon. In this method first draw a circle whose radius is same as the polygon radius and then follow this method.
Select polygon tool from quick access toolbar or by short key POL enter.
Now enter number of sides of the polygon.
After it specified the center point of polygon by clicking the left click of mouse at the center of the circle.
Now press I enter to draw the polygon inside the circle or press C to draw the polygon at circumscribed(outside) to the circle.
Now enter the radius of the polygon.
Now delete the circle.
Example:
Draw a polygon who has eight sides and whose radius is 6.
Solution:
AUTOCAD TUTORIAL: Chapter 2 Introduction Of 2D Drawing Tool > polygon Tool
Draw a circle whose radius is 6.
POL enter.
8 enter
Select the center of the circle.
Press I for inside the circle and C for outside the circle.
6 enter 

2. With the reference of a line:

This method is used when we know the length of the side of the polygon. In this method first draw a line whose length is same as the side length of the polygon and then follow this method.
Select polygon tool from quick access toolbar or by short key POL enter.
Now enter number of sides of the polygon.
Now press E enter to select the edge option which allow to draw the polygon with reference to side length.
Now select the starting and ending points of line.
Example:
Draw a circle who has 6 sides and each length of each side is 2.
solution:
AUTOCAD TUTORIAL: Chapter 2 Introduction Of 2D Drawing Tool > polygon Tool
First draw a line of length 2
POL enter
6 enter
E enter
Select first point of line by clicking the mouse.
Select end point of the line by clinking the mouse.

Exercise:
Problem 1 : Draw a polygon who has 8 side and length of each side is 10.
Problem 2 : Draw the following diagram.
AUTOCAD TUTORIAL: Chapter 2 Introduction Of 2D Drawing Tool > polygon Tool

AUTOCAD TUTORIAL: Chapter 2 Introduction Of 2D Drawing Tool > polygon Tool
Labels:

Comments

Post a Comment

Popular posts from this blog

New imaging technique could detect acoustically 'invisible' cracks

The next generation of aircraft could be thinner and lighter thanks to the development of a new imaging technique that could detect damage previously invisible to acoustic imaging systems. The nonlinear acoustic technique developed by researchers from the University of Bristol's Ultrasonics and Non-destructive Testing (NDT) research group is published in the current issue of  Physical Review Letters  together with an accompanying article in  Physics . It has long been understood that acoustic nonlinearity is sensitive to many physical properties including material microstructure and mechanical damage. The lack of effective imaging has, however, held back the use of this important method. Currently engineers are able to produce images of the interior of components using ultrasound, but can only detect large problems such as cracks. This is like detecting only broken bones in a medical environment. Imaging of acoustic nonlinearity is achieved by exploiting differences in
1 comment
Read more

Main Parts of an Internal Combustion Engine

Today we will learn about main parts of an engine. An internal combustion engine is the engine in which combustion (burning of fuel) takes place inside the cylinder of engine. By burning of the fuel high temperature and pressure force generates. This pressure force use to move the vehicle or rotate wheels by use of some mechanism. In an engine many parts work together and achieve the goal of converting chemical energy of fuel into mechanical energy. These parts are bolted together and the combination of all these parts is known as engine. Today I am going to tell you about these parts and how they work so you can know the basic of automobile engine. Main Parts of an Internal Combustion Engine: 1. Cylinder block Cylinder is the main body of IC engine. Cylinder is a part in which the intake of fuel, compression of fuel and burning of fuel take place. The main function of cylinder is to guide the piston. It is in direct contact with the products of combustion so it must b
Post a Comment
Read more

Pedal Operated Hacksaw

Pedal Operated Hacksaw Operating a hacksaw manually is a very tiring and time consuming task. It requires a lot of manual effort and delivers uneven cutting. Operating a electrical hacksaw does deliver good results but consumes a lot of energy. So here we propose a semi automated hacksaw using pedal power. Here we design and fabricate a hacksaw that is run by pedal power and achieves even cutting with very less efforts. Here we use a chain sprocket arrangement to transfer power from pedals to hacksaw. A strong and firm base frame allows for efficient power transfer between the system. We use bearings and mounts to mount and setup the entire system and ensure a smooth circular motion of pedals. Now we attach a hub to the other sprocket. This hub is connected with a connecting rod which moves with the hub in order to produce a lateral motion. We now develop a supporting frame and connect a saw to the other end in order to achieve desired cutting movement of saw. We also attach
1 comment
Read more