1. WELCOME

2. FRICTIONLESS COMPRESSOR TECHNOLOGY PRESENTED BY VISHNU VIJAYAN REG NO:-12428066 DEPT OF MECHANICAL RIET GUIDED BY Mr HARISANKAR ASSISTANT PROFESSOR DEPT OF MECHANICAL RIET

3. INTRODUCTION Compressor is a device used for creating high pressure. Conventional type of compressor works with roller bearing and hydrodynamic bearing Therefore they require lubrication The frictionless compressor technology is compressor with the application of magnetic bearings and permanent magnet synchronous motor Permanent magnet brushless synchronous motor has permanent magnet instead of copper windings.

4. They Are Different because:- * Magnetic bearings. * Oil-free design. * VFD control. * Smaller and lighter than conventional compressors. HOW ARE THEY DIFFERENT?

5. MAGNETIC BEARINGS No friction. This can improve energy efficiency by 2-4%. Run at high speeds (up to 48,000 RPM) and give good speed control. Magnetic-bearing compressors offer economic, energy and environmental benefits.

6. OIL FREE DESIGN The biggest benefit to eliminating oil from the system is that it eliminates the need for a lubrication system. It reduces the maintenance cost of compressor by 50 percent

7. VFD CONTROL Variable Frequency Drive provides good speed control, allowing the system to run up to 48,000 RPM.

8. SMALLER AND LIGHTER Using permanent magnets will reduces the weight and size. They are one-fifth of the weight and half the size of an equivalent conventional compressor.

9. ADVANTAGES Reduced maintenance costs. Easier and quicker installation. Sound level less than 70 decibel(dB).

10. DISADVANTAGE Price is 50-70% more than normal Compressor. Power of permanent magnet will decrease.

11. CONCLUSION Magnetic-bearing compressors offer economic, energy, and environmental benefits. Chief among them are increased energy efficiency, the elimination of oil and oil management, and Considerably less weight, noise, and vibration.

12. REFERENCE * Hugh Crowther, PE and Eugene Smithart, PE (2004 JANUARY) Frictionless Compressor Technology * Ivanovich, M.G. (2002 JUNE). The market for chillers: drives, controls, simplicity. HPAC Engineering. * For HPAC Engineering feature articles dating back to January 2005 * www.seminarprojects.com/frictionless_compressor technology.php * www.sciencedirect.com

13. THANK YOU