ACTIVE LEARNING ASSIGNMENT ONCONTROL ENGINEERING

ANUPAM CHATURVEDI ( 140803119501 )MILAN PATEL ( 140803119502 )SUNIL RATHAVA ( 140803119503 )

TOPIC :-

Basic element of Pneumatic circuit ; Difference between Pneumatic and Hydraulic control system ; Force balance and Force distance type controllers.

CONTENTS : -

Basic element of Pneumatic circuit

Difference between Pneumatic & Hydraulic control system

Force balance type controller

Force distance type controller

BASIC ELEMENT OF PNEUMATIC CIRCUIT :- Air Compressor

Air Receiver

Air filter

Pressure Regulator

Lubricator

Cotrol Valves

BLOCK DIAGRAM OF BASIC PNEUMATIC SYSTEM :-

AIR COMPRESSOR :-

An air compressor is a device which is used to produce compressor air.

This compressed air is used as the source of pneumatic power supply.

Air Compressor are mainly two types :-

( 1 ) Reciprocating compressor ( 2 ) Rotary compressor

A Reciprocating compressor which has a piston sliding in a cylinder and the compressed air is diliverd to receiver.

A Rotary compressor in which the dynamic head is imparted to the gas by means of high speed impeller rotating in a confined space.

Rotary compressor are used where large quantities of air are needed at relatively low pressures.

AIR COMPRESSOR FURTHER CLASSIFIED IN FIVE TYPES :-

Piston type

Vane type

Diaphram type

Screw type

Lobe type

AIR RECEIVER : - Air receiver is an essential component of a

comoressed air system.

Air Receiver supplies air at constant pressure.

The sizing of air receiver depends on the following parameter :

( 1 ) System pressure ( 2 ) Flow rate requirements ( 3 ) Compressor output capacity

AIR FILTERS : - Air filter are used to filter the air taken into

the cimpressor.

Function of Filters :- (1) Filter all the suspended impurities in air such as dust and other particulate matter.

(2) Filter helps in condensing the excess water vapour.

MAIN COMPONENT OF FILTER ASSEMBLY :- - Filter Element - Filter body and bowl assembly - Bowl Retainer.