FRICTIONLESS COMPRESSOR TECHNOLOGY SEMINAR PDF

Traditional centrifugal compressors use roller bearings and hydrodynamic bearings, both of which consume power and require oil and a lubrica- tion system . Frictionless Compressor | Seminar Report, PPT, PDF for Mechanical. Amrit Sahoo. Uploaded by. Amrit Sahoo. Loading Preview. Sorry, preview is currently. Introduction The frictionless compressor technology is compressor with the application of magnetic bearings and permanent magnet.

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The use of permanent magnets instead of rotor windings makes the motor smaller and lighter than induction motors.

The combination offlooded evaporated technology and oil free system compresssor allowed very seminat approaches and, subsequentlenhanced performance. Compressors are now brought to mainstream middle-market applications through the use of High-speed, two-stage centrifugal compression with integral variable-speed drive.

In frictionless compressor instead of roller bearings and hydrodynamic bearings, magnetic bearings are used. The magnetic bearings normally position the rotor in the proper location, preventing contact between the rotor and other metallic surfaces.

The VSD is integrated into the compressor housing, avoiding long leads and allowing key electronic components to be refrigerant-cooled. Conventional bearings can use as much as 10, w, while magnetic bearings re- quire only w. When the magnetic bearings are energized, the motor and impellers, which are keyed directly to the magnetic shaft, levitate.

How About Make It Smeinar The magnetic y y bearings create an air buffer that prevents the only major moving part the motor rotor from transmitting vibration to the structure Similarly, sound levels are extremely low, primarily because of. Magnetic bearings consume less power and there is no need for oil and lubrication systems.

That amounts to times less friction loss. Magnetic bearings—two radial and one axial—hold the shaft in position Figure 2. The stator excitation and rotor armature change places. The frictionless compressor technology is compressor with the application of magnetic bearings and permanent magnet synchronous motor.

Seminar On Frictionless Compressor Technology- Mechanical Seminar Topic

This compressor has high reliability, efficiency, less maintenance cost and staff. Permanent magnet brushless synchronous motor has permanent magnet instead of copper windings.

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Most air-cooled products including chillers, rooftop units, and condensing units use DX evaporators. The capacitors, in turn, provide enough power to maintain levitation during coast down; allowing the motor rotor to stop and DE levitate.

The rotor is mounted offset in a larger housing which can be circular or a more complex shape. Technical Centre Discusses oil-flooded screw compressors including a complete system flow diagram 9. The diffuser is often used to turn diagonal flow to the axial direction. Chief among them are increased energy efficiency, the elimination of oil and oil management and considerable seminxr weight, noise, and vibration. If the magnetic bearings fail, the touchdown bearings also known as backup bearings are used to prevent a compressor technologj.

The vane geometry may be involutes, Archimedean spiral, or hybrid curves. Centrifugal compressors tend to be more efficient than screw or scroll Compressors, and take advantage of speed control more effectively, but they are usually only availablein larger sizes. The well-proven energy performance advantages of variable-speed centrifugal Compressors are now brought to mainstream middle-market applications through the use of High-speed, two-stage centrifugal compression with integral variable-speed drive.

An R version is planned for retrofit applications. While gears are a proven technology, they create noise and vibration, consume power, and require lubrication. Learn how your comment data is processed. Four positioning signals per bearing hold the levitated assembly to a tolerance of 0.

The compression of gas occurs by the movement of a flexible membrane, instead of an intake element. Compressors are similar to comprezsor This is initial mid-range package offers centrifugal compression efficiencies previously reserved for large tonnage systems only. Unmatched unloading with the integrated VFDs since the on-board digital control reduce compressor speed to match the load. Oil system, purge system, and shaft seals found in order technology chillers.

This compressor has high reliability, efficiency, less maintenance cost and staff.

Seminar On Frictionless Compressor Technology- Mechanical Seminar Topic

Electromagnetic cushions continually change in field strength to keep the rotor shaft centrally positioned. Permanent-magnetic bearings do the primary work, while digitally controlled compresssor provide the fine positioning. Traditional centrifugal compressors use roller bearings and hydrodynamic bearings, both of which consume power and require oil and lubrication system.

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Are you interested in this topic. Low maintenance costs as there are no wearing parts.

Frictionless Compressor Technology Essay Example | Graduateway

In certain applications, such as air compression, multi-stage double-acting compressors are said to be the most efficient compressors available, and are typically larger, noisier, and more costly than comparable rotary units.

Rotary screw compressors Rotary screw compressors use two meshed rotating positive-displacement helical screws to force the gas into a smaller space. This feature allows the compressor to see a power outage as a normal shutdown. Touch screen operator panel is graphically intuitive and easy o use for tchnology operator productivity. The program compared an hourly analysis of a ton frictionless chillers with that of a water cooled reciprocating chiller Phoenix, Chicago and Tampa and a water cooled centrifugal chiller New York.

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This site uses Akismet to reduce spam. Magnetic bearing centrifugal compressor eliminates the efficiency-robbing friction inherent in traditional centrifugal chiller. The lubrication of these bearings is provided by the refrigerant itself. Traditional centrifugal compressors use roller bearings and hydrodynamic bearings, both of which consume power and require oil and lubrication system. Chief among them are increased energy efficiency, the elimination of oil and oil management and considerable less weight, noise, and vibration.

The integrated VFD allows excellent part-load y performance as power consumption drops o ff, depending on the head relief, near the cube root smeinar the shaft speed. Operations to near zero loads are achievable via an optional, digitally controlled, load balancing valve.

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