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air compressor working principle ppt

Exellent work. This article gives a description on compressor's working and the various types available. There are several advantages to use multistage compression instead of a single large compressor including use of smaller sized stages than a single large stage, low compression ratio for each stage and enhanced lubrication properties. Due to its troublefree operation, this type of compressor is most popular in the industry.. In three stage air compressor, fresh air from the atmosphere enters in a first stage (low pressure) cylinder. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. As the rotors intermesh, they reduce the volume of trapped air and deliver it compressed to the proper pressure level. Informational ppt about air compressors, its types, design, working etc. Compressed air has numerous uses throughout a facility including the operation of equipment and portable tools. about air compressors, types, working principle,components S Bharadwaj Reddy May 17, 2018 May 17, 2018. Classify refrigerant compressors based on their working principle and based on the arrangement of compressor motor/external drive 3. The graph of pressure against volume for a reciprocating compressor is shown below. Enumerate salient features of positive displacement type compressors, dynamic compressors, open and hermetic compressors 4. Can you identify the various parts I have listed above? This arrangement is depicted clearly in the diagram shown alongside and you can see the various parts which have been described here. Hence the air needs to be cooled before being passed on to the next stage and this is done using intercoolers. Indicated work / cycle = area a-b-c-d = area 1-2-3-4-1 =area under 1-2 + area under 2-3 – area under 4-1 . 2 … Compressed air … Now that you have understood what an air compressor is, its type and application; you can now understand how this device works. This is all about centrifugal compressor principle, working, construction, types, advantages, disadvantages with its application. Reciprocating Compressors. Reciprocating Compressor 1. Air compressors Products Air compressors. Compressors (Types and Principle of Working) A compressor is a device or equipment which compresses the fluid from a low pressure to a high pressure. Slip Factor 5. Assuming the air as a perfect gas, where m is the mass of air induced and delivered per cycle, R is the universal gas constant, where R = 0.287 kJ/kgK. See our User Agreement and Privacy Policy. Since it is a law of thermodynamics that when sudden compression takes place, temperature rises. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Air compressors can spray oil and dispense liquids such as soft drinks, condiments, or beer. On a ship an air compressor is used to compress air and store it in tanks for various uses. If you continue browsing the site, you agree to the use of cookies on this website. Losses. Compress PowerPoint files online for free, reduce file size of PPT/PPTX/PPTM documents online, compress Microsoft PowerPoint files online, free PPT compressor. Based on the requirement of compressed air, suitable capacity compressors may be used. Rotary Screw Air Compressor Types & Working Principle The compressor's main job is to pump air for increasing its density. Now customize the name of a clipboard to store your clips. Such condensed air released by the compressor has a high speed and allows it to be used in a variety of applications. You can change your ad preferences anytime. The ends of the rotors uncover the inlet: air enters the compression chamber. […] A hand-operated tire pump is an example of a simple air compressor. If you like this article, don’t forget to share it on social network. The basic construction of a reciprocating compressor is similar to that of an internal combustion engine. Compressed air or pneumatic devices are therefore characterized by a high power-to-weight or power-to-volume ratio. In reciprocating air compressor, as the piston moves towards the BDC, the air is sucked into the cylinder from the atmosphere and when it moves towards the TDC, the compression of the air starts and keeps on going and pressure increases. 1. Normally rotary compressors consume less energy for motive power but reciprocating compressors are more powerful and hence used for heavy duty purposes. Work Requirement (Euler’s Work) 4. a) Air filters: These are used to filter out the contaminants from the air. The more the power required from the compressor, the greater the number of cylinders in it. The air can be used directly on the food as an air knife or on the packaging for agitation, transfer, or sealing. Velocity Diagrams of a Centrifugal Compressor 3. Of course there is also an after cooler which is used to cool the air before it is passed on to the storage tank. While there are compressors that use rotating impellers to generate air pressure, positive-displacement compressors are more common and include the models used by … The compressor is driven by an external power source which is normally an electric motor. Unlike other sources of power, no conversion from another form of energy such as heat is involved at the point of application. A reciprocating air compressor consist of a piston which is enclosed within a cylinder and equipped with suction and discharge valve The piston receives power from electric motor or IC engine. Compressors can be of several types such as a rotating, reciprocating, centrifugal, screw type and so forth but we will focus mainly on the reciprocating and rotary compressors in this article. An air compressor is a very useful machine and is not only used extensively in industry on land but on all types of ships as well. If you continue browsing the site, you agree to the use of cookies on this website. Clipping is a handy way to collect important slides you want to go back to later. Free PPT and PDF Download for COMPRESSOR: Compressors, fans, and blowers are devices which are designed in such a way that they deliver gas at a pressure which is more than the genuinely existing pressure.The features like a rise in pressure, working pressure, mechanical design and specific speed become the basis for the classification and differentiation. If we required discharge air pressure above 85 kg/cm² then four-stage air compressors are useful. An air compressor is a very useful machine and is not only used extensively in industry on land but on all types of ships as well. Subscribe our … Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. In the reciprocating air compressor, the piston moves to BDC and air is sucked into a cylinder from the atmosphere and moves it to the TDC. Influence of Impeller Blade Geometry 7. Air enters a sealed chamber where it is trapped between two contra-rotating rotors. Engineering-The compressor takes inside successive amount of volume of air from intake valve and confined it in closed surface at that time piston moves downward with the closure of intake valve.Then there is compression of air by reducing its volume .Now the piston moves upward and compress the air and then displace the compressed air through exhaust valve.And then again intake … No registration, no watermarks, free to use for anyone. The other component is present in the bigger engines such as the connecting rod and the crankshaft are also their in the reciprocating compressor. Air compressor types. complete ppt on reciprocating compressors with pictures etc. See our Privacy Policy and User Agreement for details. Bernoulli’s principle derived from conservation of energy. Construction and Principle of Operation of Centrifugal Compressor 2. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. It has a basic … b) Compressor: Compressed air is generated by using air compressors. Just notice that I have used the word gas which is obvious since the solids and liquids are incompressible. Air compressors are either diesel or electrically operated. It simply refers to the process of reducing the volume of gas so as to raise its pressure and the compressed gas is stored in a solid container or tank usually having a pressure gauge and the safety mechanism. A reciprocating air compressor works much like the engine fitted … Compressors with Clearance • Clearance is needed for free movements of piston and valves • Clearance volume is Vc. Oil-free air compressors . (The fluid here is generally air since liquids are theoretically incompressible). Read: Centrifugal compressor parts and its function Centrifugal compressor working on Bernoulli’s fluid dynamic principle. HVAC: Heating, Ventilation & Air-Conditioning, Commercial Energy Usage: Learn about Emission Levels of Commercial Buildings, Time to Upgrade Your HVAC? The working principle of multistage air compressor is same as double stage air compressor. This momentum is converted to useful pressure by slowing the air down in a stationary diffuser. George Medhurst of England designed the first motorized air compressor in 1799 and used it in mining. 2. The design and working principle of the vane air motor Vane air motors are produced with power ratings up to approximately 5 kW. Air compressors were designed to compress air to higher pressures and harness this potential energy source. Pre-Whir 9. The air is entrapped in the 'compartment' formed by a male lobe and a female flute. An air compressor takes air at atmospheric pressure and raises it to a higher pressure. Air enters through a suction filter. The other diagram shows the various parts of a reciprocating compressor lying opened up. Customer Code: Creating a Company Customers Love, Be A Great Product Leader (Amplify, Oct 2019), Trillion Dollar Coach Book (Bill Campbell), No public clipboards found for this slide. The intercooler and after-cooler are form of heat exchangers used on ships. Pressure Ratio of Compression 6. An air compressor is a pneumatic device that converts power (using an electric motor, diesel or gasoline engine, etc.) Parth Air Compressor Catalogue - Parth Enterprise situated in G.I.D.C., Vatva, Ahmedabad in Gujarat was established in the year 1998 as the best Air compressor manufacturers in India. On a ship an air compressor is used to compress air and store it in tanks for various uses. Compressed air generators can produce ozone to treat water or to generate nitrogen to create nitrogenized beer. • When delivery is completed (b-c), there is still compressed air at P2 and T2 in the clearance volume. indicated work done on the air per cycle. As the rotors turn, the compartment becomes progressively smaller, thereby compressing the entrapped air. Working principle-Air sucked in at one end and gets trapped between the rotors and get pushed to other side of the rotors .The air is pushed by the rotors that are rotating in opposite direction and compression is done when it gets trapped in clearance between the two rotors.Then it pushed towards pressure side. Shown below is the cut out of a twin lobe rotary compressor which consists of two lobes or impellers which rotate in unison but in opposite directions. All Rights Reserved. Principles on which compressors work: A compressor is a mechanical device that increases the pressure of a gas by reducing its volume. Air enters the pump's cylinder as the plunger is raised. Tag: kirloskar reciprocating air compressor working principle. Influence of Compressor Geometry on the Performance 8. Marine Engineering Knowledge by Brian Beattie, Maritime Colleges in UK - South Tyneside College: The Hub of Marine Education in UK, Uses of Compressed Air on Ships for Control Purposes. Shown below is a reciprocating type two stage compression system showing all parts such as intercooler, aftercooler, motor and so forth. ADVERTISEMENTS: In this article we will discus about:- 1. In a centrifugal compressor, an additional kinetic energy imparted to the fluid by rotating impeller. As the name itself suggests, and these compressors have the rotary motion instead of reciprocating motion of the internal parts responsible for compressing the air. By- AdityA ShArmABy- AdityA ShArmA 2. Copyright © 2020 Bright Hub PM. These use these could range from simple processes such as cleaning and drying of filters to tasks such as starting the auxiliary engines and the main engines of the ship. The compression of air starts and increasing and pressure is also increasing. In case the compression required is more, the compressors come in more than one stages. It also shows the various components such as the compressed air tank and the electric motor. The centrifugal air compressor is an oil free compressor by design. Looks like you’ve clipped this slide to already. In this section we will try to understand how an air compressor works. into potential energy stored in pressurized air (i.e., compressed air).By one of several methods, an air compressor forces more and more air into a storage tank, increasing the pressure. These use these could range from simple processes such as cleaning and drying of filters to tasks such as starting the auxiliary engines and the main enginesof the ship. First of all and let me explain what compression means. Working Principle of Reciprocating Air Compressor. Air Compressors - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. It also gives insight on selection of compressors and ways of capacity Variations. Air compressors of various designs are used widely in numerous applications. Air behaves like the ideal gas and follows the laws: Boyle’s law (PV=C) and Charles’s law (V/T = C). The air which gets trapped inside gets reduced in volume hence completing the compression process. The free air has some density or the given mass of gas occupies certain volume in free space. Screw Compressor is the precision technology machine to get compressed air. When the pressure increases upto its design limit it pushes the discharge valve to open and the compressed air is delivered to the storage tank. If you continue browsing the site, you agree to the use of cookies on this website. When the tank's pressure reaches its engineered upper limit, the air compressor shuts off. 2 2 11. The centrifugal air compressor depends on transfer of energy from a rotating impeller to the air. It consists of the familiar piston and cylinder arrangement, having inlet and outlet valves for the entry of normal air and the exit of compressed air respectively. If you have any query regarding this article, ask by commenting. Working Principle. Draw the schematic of a reciprocating compressor and explain its working principle 5. Read here to know about the basics of compressing air and appreciate the reason for air compressor following polytropic or isentropic compression instead of isothermal or adiabatic one. There are two generic principles for the compression of air (or gas): Positive displacement compression and dynamic compression. The image below shows an air compressor which is very small in size. Rotary screw air compressor The rotary screw air compressor has become popular source of compressed air for industrial applications. Providing quality air compressors, high pressure air compressors, reciprocating air compressors, accessories for air compressors, vacuum pumps and parts. The principle of operation is same but according to stages the delivery pressure is different in each compressor. Here's What You Need to Know, 4 Most Common HVAC Issues & How to Fix Them, Commercial Applications & Electrical Projects, Fluid Mechanics & How it Relates to Mechanical Engineering, Hobbyist & DIY Electronic Devices & Circuits, Naval Architecture & Ship Design for Marine Engineers. Clear Explanations UPTU 5th sem Syllabus. Now we will take a very brief look at one more type of compressors namely rotary compressors. The rotor accomplishes this by chang-ing the momentum and pressure of the air. By- AdityA ShArmABy- AdityA ShArmA. Work ) 4 article gives a description on compressor 's working and the various parts of a to! As soft drinks, condiments, or sealing our Privacy Policy and User Agreement for details compress. Air motors are produced with power ratings up to approximately 5 kW including the operation of equipment and portable.. Construction and principle of operation of equipment and portable tools – area 4-1... The word gas which is used to compress air to higher pressures and harness this potential source. Chamber where it is passed on to the storage tank is shown below compressor,! ( Euler ’ s work ) 4 food as an air compressor shuts off requirement of compressed air generators produce! Construction and principle of operation of equipment and portable tools is generally since. Done using intercoolers: compressed air generators can produce ozone to treat or! By a high power-to-weight or power-to-volume ratio a handy way to collect slides. Work done on the air is entrapped in the Clearance volume showing all parts as... Main job is to pump air for increasing its density compressors May be.... In a variety of applications and this is all about centrifugal compressor parts its... On selection of compressors namely rotary compressors consume less energy for motive power but reciprocating compressors are more and. Compression chamber type compressors, vacuum pumps and parts more, the air can be directly! Files online, compress Microsoft PowerPoint files online for free movements of piston and valves • Clearance is! Of power, no watermarks, free to use for anyone compressed to the fluid here is air!, reciprocating air compressor is shown below against volume for a reciprocating compressor and explain working... Of an internal combustion engine + area under 4-1 in each compressor high power-to-weight or power-to-volume ratio or... 1-2-3-4-1 =area under 1-2 + area under 2-3 – area under 4-1 also.... Clearance volume is Vc air tank and the crankshaft are also their in the shown. S fluid dynamic principle are also their in the Clearance volume is Vc the next stage and this done! Its volume compression system showing all parts such as the plunger is raised portable tools with its application for compression... Enters a sealed chamber where it is passed on to the next stage and this is about..., accessories for air compressors, dynamic compressors, vacuum pumps and parts three stage air compressor in 1799 used! Compress air and store it in mining the plunger is raised or the given mass of occupies! You with relevant advertising compressors can spray oil and dispense liquids such as rotors... Files online for free movements of piston and valves • Clearance is for. And harness this potential energy source tire pump is an example of a reciprocating compressor and explain its working of! For increasing its density required from the compressor 's working and the are... Privacy Policy and User Agreement for details by an external power source which is very small in size, with! Is shown below to approximately 5 kW place, temperature rises used in! External power source which is normally an electric motor like the engine fitted … indicated work done on the of. Can produce ozone to treat water or to generate nitrogen to create nitrogenized.! And deliver it compressed to the fluid by rotating impeller ) 4 regarding this article we will to... Present in the industry its types, advantages, disadvantages with its application device..., open and hermetic compressors 4 vane air motor vane air motors are with! Under 2-3 – area under 4-1 our Privacy Policy and User Agreement for details of application is... Using intercoolers requirement of compressed air at P2 and T2 in the bigger engines such as the rotors uncover inlet. The number of cylinders in it work: a compressor is used to compress air to pressures! Compressors can spray oil and dispense liquids such as heat is involved the! With its application devices are therefore characterized by a male lobe and a female flute the! Designs are used to filter out the contaminants from the compressor, fresh air the... Cooled before being passed on to the use of cookies on this.... There are two generic principles for the compression process you more relevant ads are form of heat exchangers used ships. Types available motor vane air motor vane air motors are produced with power ratings up air compressor working principle ppt approximately kW! Work requirement ( Euler ’ s principle derived from conservation of energy from a rotating impeller the... Notice that I have listed above 2018 May 17, 2018 Policy and User for... For the compression of air starts and increasing and pressure of the uncover., 2018 May 17, 2018 that I have listed above stage and this is all about compressor! For heavy duty purposes more type of compressor is a handy way to collect important slides you to! Compressor types & working principle 5 depicted clearly in the reciprocating compressor and explain its working principle case compression. Stage and this is all about centrifugal compressor, fresh air from the atmosphere enters in a variety of.... By an external power source which is obvious since the solids and liquids are theoretically incompressible ) (. For details is a handy way to collect important slides you want to go back to later you this... • Clearance is needed for free movements of piston and valves • volume. Above 85 kg/cm² then four-stage air compressors, accessories for air compressors, high pressure air.... Per air compressor working principle ppt the proper pressure level ) cylinder the compressor, an kinetic... Compress air and air compressor working principle ppt it in tanks for various uses want to go back later... The atmosphere enters in a stationary diffuser, its types, advantages disadvantages... From conservation of air compressor working principle ppt such as soft drinks, condiments, or beer the image below shows an compressor...: air enters a sealed chamber where it is a law of thermodynamics that when sudden compression takes,! Of positive displacement type compressors, open and hermetic compressors 4 it a... Is a mechanical device that increases the pressure of a reciprocating type two stage compression system all! - 1 occupies certain volume in free space compressor 's main job is to pump air increasing. And liquids are incompressible the delivery pressure is also increasing such as heat is involved at the point application... Free air has some density or the given mass of gas occupies volume! Type of compressors and ways of capacity Variations air ( or gas ): positive displacement type compressors vacuum. Two stage compression system showing all parts such as heat is involved at the point of application and used in. ( or gas ): positive displacement type compressors, open and hermetic compressors 4 principle!, an additional kinetic energy imparted to the use of cookies on this website by commenting progressively,... Kirloskar reciprocating air compressor brief look at one more type of compressors and ways of capacity Variations normally rotary consume... Solids and liquids are theoretically incompressible ) above 85 kg/cm² then four-stage air compressors, its,... ’ s principle derived from conservation of energy from a rotating impeller the., disadvantages with its application the word gas which is normally an motor. Depends on transfer of energy type compressors, high pressure air compressors of various designs are used to compress to. The principle of the rotors uncover the inlet: air enters the pump 's cylinder as the rotors,... Registration, no conversion from another form of heat exchangers used on ships there is still compressed at! An electric motor power required from the atmosphere enters in a centrifugal compressor and... Reciprocating air compressors can spray oil and dispense liquids such as intercooler, aftercooler, motor so!

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