From the storage vessel, it may be transmit by the channel pipeline to a place where the supply of compressed air is required. Find materials for this course in the pages linked along the. In r and r15,8units of r09 syllabus are combined into 5units in r and r15 syllabus. If damage does exist, file a claim with the transportation company immediately. Gas compression process in reciprocating compressor can be expressed such in figure 5. A pump is a device used to move fluids, such as liquids, gases or slurries.
It is a mechanical component machine to compress the air with raise its pressure. Types of compressors centrifugal compressors for low p compressor is a machine used to compressed air or gas to a final pressure exceeding 241. Reciprocating compressor mechanical engineering in. High pressure air passes into the primary oil separator. Nov 05, 2016 types of compressor nptel mayank kumar. Ideally, there is no heat transfer from the air to the surroundings. A compressor is a mechanical device that increases the pressure of a gas by reducing its volume.
Learn for free, pay a small fee for exam and get a certificate featured news. In the way back from point 1 to point 3, gas flows or gas induced to cylinder is only from point 2 to 3. Each component has been rigorously tested by technicians to ensure the quality, endurance and performance of this air compressor. The modern techniques of heat recovery systems in air compressors and use of variable speed drives have been briefly detailed to provide a view into a bright future of air compressor systems. Air conditioning and refrigeration rex miller, mark r.
The proper design and operation of air compression systems is very critical. Free ppt and pdf download for compressor study mafia. In this section of mechanical books you will find compressor handbook pdf for direct downlod. Fresh atmospheric air is induced into the cylinder at constant pressure. Airfilter efficiency gages 28 airmeasurement instruments 28. The main advantages of the reciprocating compressor are that it can achieve high. Khurmi a textbook of refrigeration and air conditioning is an aptly written textbooks for the students of mechanical engineering while also a mustread for anyone with an interest in the subject.
Know later, that refrigeration is an integral component of airconditioning. This manual does not for designing reciprocating compressor and the related parts. Refrigeration and airconditioning nptel online videos. Remaining traces of oil are removed in a final separator element, providing high quality air. In the way back from point 1 to point 3, gas flows or gas induced to cylinder is only from point 2 to 3, because from point 1 to 2 there is only gas expansion of residual gas in clearance space. Atlas copco air compressor instruction book pdf download. For the love of physics walter lewin may 16, 2011 duration. An air compressor is a device that converts power using an electric motor, diesel or gasoline engine, etc. Finally, the air, after further compression in the h.
Learn for free, pay a small fee for exam and get a certificate. Food processing industry depends highly on this type of compressor as it can provide oil free compressed air which are. Nptel video lectures, iit video lectures online, nptel youtube lectures, free video lectures, nptel online courses, youtube iit videos nptel courses. They are best suited when the demand of air or gas is constant and excessive. As the rotors turn, the compartment becomes progressively smaller, thereby compressing the entrapped air. Manual purpose to be used for selection, application into the system, power and cooling water estimation. The air is entrapped in the compartment formed by a male lobe and a female flute. This section includes select lecture notes for the course excluding lessons on aircraft propulsion and jet engine rotordynamics. Compressors, psychrometry and applications of refrigeration and air conditioning have been included and updated for students to conceptualise the subject in a complete manner.
Air is contained between the rotor and stator wall. These units are basically oil cooled with air cooled or water cooled oil coolers where the oil seals the. Centrifugal and axial compressors are pumping gas continuously but reciprocating is not. Iit kharagpur notes converted into high quality audio source nptel. At the end of the delivery stroke, the clearance volume. As gases are compressible, the compressor also reduces the volume of a gas.
Refrigeration and air conditioning pdf notes rac pdf notes. Pump 1 pump a small, electrically powered pump a large, electrically driven pump electropump for waterworks near the hengsteysee, germany. Unlike other sources of power, no conversion from another form of energy such as heat is involved at the point of application. It is important to have a complete understanding of the. The features like a rise in pressure, working pressure, mechanical design and specific speed become the basis for the classification and. It is an ebook for people who are involved in training and.
Positive displacement compressors cab be further divided into reciprocating and rotary compressors. Nptel provides elearning through online web and video courses various streams. Centrifugal pumps the centrifugal pump produces a head and a flow by increasing the velocity of the liquid through the machine with the help of a rotating vane impeller. Nptel, online courses and certification, learn for free. Introduction to fluid machinery turbines, pumps, blowers. At low q gas pressure has the same energy at horizontal portions of the performance curve. Purpose to be used for selection, application into the system, power and cooling water estimation. George medhurst of england designed the first motorized air compressor in 1799 and used it in mining. Introduction to fluid machinery turbines, pumps, blowers and. Elliotts multistage centrifugal compressors lead the industry in both performance and reliability.
It passes through an airblast oil cooler and filter before being returned to the compressor. Report broken links to contact us compressors introduction download a practical guide to compressor technology second edition download atlas copco compressed air manual 8th. You can be assured your mitm air compressor was constructed with the highest level of precision and accuracy. For 30 years, topics such as air refrigeration cycles and systems, vapour compression refrigeration systems simple and compound, refrigerants incl. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising.
The future of air compressor systems has been a constant research topic among industrialists. Jul 12, 2017 free ppt and pdf download for compressor. Manual for refrigeration servicing introduction technicians. Applications 3rd lecture applications of refrigeration and air conditioning a comfort air conditioning. The fluid here is generally air since liquids are theoretically incompressible. Vc is filled with compressed air at pressure p2 and. According to the basic engine design a reciprocating engine use of cylinder piston. Introduction to fluid machinery turbines, pumps, blowers and compressors fluid machines machines are energy conversion devices are called turbomachinery which transfers energy between a fluid system and its mechanical system e. Welcome to the manual for refrigeration servicing technicians. Elliott compressors and turbines installed in the 1940s and 1950s are still in operation today, either. Oil lubricated air compressor 160 for multi stage 200 for single stage pure oxygen and pure chlorine 120 dry cylinder with teflon seals 200 other. The induced air is compressed according to the polytropic law of. Lowspeed steam engine driven compressors highspeed electric motor driven compressors rotary vane compressors centrifugal compressors screw compressors scroll compressors history of air conditioning module 2.
View and download atlas copco air compressor instruction book online. Centrifugal pumps the centrifugal pump produces a head and a flow by increasing the velocity of the. Air compressors were designed to compress air to higher pressures and harness this potential energy source. Sf1 skid, sf2 skid, sf4 skid, sf6 multi, sf8 multi, sf15 multi. Mechanical engineering types and performance of pumps and compressors essam e. Said authorization may be obtained through our air compressor. Compressors and compressed air systems whether installing a new system or altering an existing plant, compressed air systems provide many opportunities to gain long term dollar savings. Be sure that all damaged parts are replaced an that the mechanical and electrical problems are corrected prior to operation of the unit. The purpose of this publication is to help users understand the basics of compressed air as a power source and to provide initial technical guidance for selecting the right air compressor for specific applications. By one of several methods, an air compressor forces more and more air into a storage tank, increasing the pressure. Refrigeration and air conditioning notes free download as word doc.
Rotary screw air compressor the rotary screw air compressor has become popular source of compressed air for industrial applications. System air passes through the after cooler, removing most of the condensate. As the rotors intermesh, they reduce the volume of trapped air and deliver it compressed to the proper pressure level. Read here to know about various types of air compressors used and get a clear inside view of each type of compressor with the attached pictures. The following types of compressors are used depending the required flow rate of air and maximum delivery pressure piston type or. An air compressor is a specific type of gas compressor compressors are similar to pumps. Congratulations on the purchase of your new mitm air compressor. All returns of allegedly defective equipment must have prior written authorization. The central focus is on packaged complete unit air compressors, most commonly used in. Compressed air or pneumatic devices are therefore characterized by a high powertoweight or powertovolume ratio. Refrigeration and air conditioning pdf notes rac pdf notes file to download are listed below please check it note. Feb 08, 2014 types of compressors centrifugal compressors for low p compressor is a machine used to compressed air or gas to a final pressure exceeding 241. Centrifugal compressor surgebasics, mechanism mechanical. These notes are according to the r09 syllabus book of jntu.
Reciprocating compressors usually compress air but are also used in. In this engine, the combustion of air and fuels take place inside the cylinder and are used as the direct motive force. Compressors can also be classified depending upon the. Unesco eolss sample chapters mechanical engineering types and performance of pumps and compressors essam e. Air compressor was constructed with the highest level of precision and accuracy. History from compressor development point of view lowspeed steam engine driven compressors highspeed electric motor driven compressors rotary vane compressors centrifugal compressors screw compressors scroll compressors history of air conditioning module 2. The compressed air is delivered out of the cylinder at constant pressure. These compressors consist of two rotors within a casing where the rotors compress the air internally. If you have any doubts please refer to the jntu syllabus book. When the tanks pressure reaches its engineered upper limit, the air compressor shuts off. The most common rotary air compressor is the single stage helical or spiral lobe oil flooded screw air compressor.
Now the air is cooled in the intercooler from 2 to 3 at constant pressure p 2 and from temperature t2 to t 3. Pdf textbook of refrigeration and air conditioning by r. Reciprocating air compressors pdf for more than a century, ingersoll rand has inspired progress by driving innovation through. A pump displaces a volume by physical or mechanical action. Applications 3rd lecture applications of refrigeration and air. Any air compressors part or material found defective will be repaired, replaced or refunded, at the sellers option free of charge, provided that coaire is notified within the above stated warranty period. Apr 14, 2017 centrifugal and axial compressors are pumping gas continuously but reciprocating is not. The air compressor sucks air from the atmosphere and compresses it then further delivers with a high pressure to a storage vessel. Describe various air cycle refrigeration systems section 9. Download textbook of refrigeration and air conditioning by r. Reciprocating, rotary hermetic refrigerant compressors.
The compressors in most gas turbine applications, especially units over 5mw, use axial. Air enters a sealed chamber where it is trapped between two contrarotating rotors. Air flow is regulated by an inbuilt modulation system. Refrigeration and airconditioning is the subject which deals with the. This manual does not for designing centrifugal compressor and those parts. After that, the air is sucked in the high pressure h. The features like a rise in pressure, working pressure, mechanical design and specific speed become the basis for the classification and differentiation. In many cases, a properly designed heat recovery unit can recover anywhere from 50 to 90 percent of this available thermal energy and put it to useful work heating air or water. Khalil encyclopedia of life support systems eolss 1. An air compressor is a specific type of gas compressor. Lecture 2 refrigerant compressors and development youtube. Kerrebrock and subsequently adapted by manuel martinezsanchez. For 30 years, topics such as air refrigeration cycles and systems, vapour.
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