In contrast, centrifugal compressors use the principle of dynamic compression, which involves converting energy from one … They … The compressor compresses the refrigerant, which flows to the condenser, where it gets cooled. COMPRESSORS Compressors are machines designed to deliver gas at a pressure higher than that originally existing. • The motor and compressor are directly coupled on the same shaft, with the motor inside the refrigeration circuit. 0000002833 00000 n For the proper functioning of the refrigeration … <<5D76F7520BF61A4FBB5DCE599CC1B9C2>]/Prev 1517008>> 17. All the compressors are contained in a single room called the machine room while the condensers are fixated on roof tops for sufficient air flow to remove the heat from the condenser coils. There are various types of compressors used in the refrigeration and air conditioning machines, these are: reciprocating, rotary, screw, centrifugal and scroll. Energy in the form of heat is removed from a low-temperature reservoir and transferred to a high-temperature reservoir. 7�v���x���ʣ\�%u/B0�nZF�L����s(�k��̈/��~�� Mechanical-Compression Refrigeration Systems. These types vary in method, utility, function, and purpose. In small refrigeration systems the oil is allowed to circulate throughout the whole circuit, but care must be taken to design the pipework and components such that oil can drain back under gravity to the compressor. See our Privacy Policy and User Agreement for details. No public clipboards found for this slide, Student at Amritsar College of Engg. Screw compressor has a series of unique advantages, such as simple structure, high reliability, convenient operation and maintenance, mature technology and so on. 3.2 COMPRESSORS 3.2.1 Types of Compressor Axial flow compressors are normally used in gas liquefaction applications. %PDF-1.4 %���� 0000001353 00000 n Vapor compression systems.In vapor compression systems, compressors activate the refriger- ant by compressing it to a higher pressure and higher temperature level after it has produced its refrigeration effect. What type of components can be used? 0000045646 00000 n 2005 Refrigeration Training Services - E2#2 Compressor Relays And Capacitors V1.2. The … TO THE TRAINER This PowerPoint presentation can be used to train people about the basics of refrigeration and air condonditioning. They use compression to raise the temperature of a low-pressure gas, and also remove vapor from the evaporator. 162 0 obj <>stream This compressor wine cooler holds up to 33 standard wine bottles at once and maintains an optimal environment for your most prized vintages. 0000003196 00000 n • Centrifugal compressors are essentially large discharge capacity compressors. 18. Thus the need for a shaft seal with the consequent refrigerant leakage problem was eliminated. As air comes in through the inlet, rotating vanes push the air along into a tighter and tighter edge of the circle, effectively compressing it while using minimal effort and travel of the air itself. They are one of the best compressor type in rotary compressors.The air is compressed using two spiral elements. 0 The type of oil may be mineral or synthetic to suit the compressor type, and also chosen so as not to react with the refrigerant type and other components in the system. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. 1. 0000006352 00000 n Rotary scroll compressor. 0000004604 00000 n There are five basic types of compressors used in the HVAC industry. Centrifugal compressors (also known as turbo-compressors) are radial flow type, roto-dynamic compressors. If you continue browsing the site, you agree to the use of cookies on this website. xref compressors and types 1. The most widely used refrigeration cycle method is mechanical compression. 0000002796 00000 n Hermetic compressors • A hermetic or sealed compressor is one in which both compressor and motor are confined in a single outer welded steel shell. Harvested in winter and stored in ice houses for summer use or, 3. Types of Compresssors. WORKING PRINCIPLE 19. To help you get ahead of the curve, we’ve broken down each one in some summaries below. SCROLL TYPE COMPRESSOR • A scroll compressor operating in reverse is known as a scroll expander, and can be used to generate mechanical work from the expansion of a fluid, compressed air or gas. 2 3 SCOPE OF THE COMPRESSORS HANDBOOK This handbook applies to the Embraco on-off compressors produced in Europe (the country of origin is indicated on the compressor label). F��cͫ���v��U�K���b������-O�G���� See our User Agreement and Privacy Policy. Expensive then piston-type compressors. CHEMICAL PROCESS TECHNOLOGY TYPES OF COMPRESSORS USED IN CHEMICAL INDUSTRY 2. 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. In answering these questions, the principles of the different control methods are introduce followed by same control examples, comprising Danfoss Industrial Refrigeration products. %%EOF types of refrigeration compressors - NewAir AWC330E NewAir AWC330E 33 Bottle Compressor Wine Cooler. 145 18 0000427308 00000 n Refrigeration systems refer to the different physical components that make up the total refrigeration unit. 0000000674 00000 n The information on the slides is the minimum information that should be explained. 0000034409 00000 n p>������^9P19j_��P2�q�. Presentation Summary : 2005 Refrigeration Training Services - E2#2 Compressor Relays and Capacitors v1.2. Starting a Split Phase Compressor. Types of Refrigeration Vapour Compression Refrigeration Refrigeration cycle Condenser 4 Expansion Device Compressor 3 High Pressure Side. 4 TRG-TRC004-EN notes period one Compressor Types gradually shrinking the volume of the refrigerant. The most common, however, are positive displacement and dynamic. A wide variety of types refrigeration compressors options are available to you, such as applicable industries, certification, and warranty. Liquid passes through expansion device, which reduces its pressure an d controls the flow into the evaporator . 2 types currently used, spring loaded and fusible metal plug Refrigeration Sales, Inc warrants the products it offers, to the original purchaser only, to be free from defects in materials and workmanship under normal use and service for a period of ninety (90) days from the date of installation. 4TH YR. These are preferred for higher … Transported from colder regions, 2. Use of ice or evaporative cooling of those equipments are discussed here AWC330E 33 Bottle compressor wine Cooler run systems! Those equipments are discussed here fire, coil blockage, or overheating unit... Compressors are widely used in industrial refrigeration are screw, piston, centrifugal and vane. 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