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Liquid Internal Cooling of High-Power Synchronous Permanent Magnet Generator Winding in Arctic Conditions
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Abstract
Direct water cooling has, so far, been used only in large size turbo generators. The method might, however, offer interesting possibilities also in high torque applications. The performance of different cooling fluids for internal liquid cooling of stator windings is assessed. The arctic operating conditions of machines place special requirements for the fluid, and thus pure water can not be used for cooling. It is found that the use of anti-freezing substances studied decrease the performance of the cooling system. A fast computational model to asses these effects are proposed in this article.
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Howey, D.A. Thermal design of air-cooled axial flux permanent magnet machines, Doctoral Thesis, Imperial College London, 2010.
S. Semken, M. Polikarpova, P. Röytä, J. Alexandrova, J. Pyrhönen, Direct-drive permanent magnet generator for high-power wind turbines – benefits and limiting factors, IET Renewable Power Generation, 2011.
R. F. Gray, L. Montgomery, R. Nelson, J. Pimpkin, S. Joki-Korpela and F. Caguiat, Designing the cooling systems for the Worldäs most Powerful turbogenerator. IEEE Power Engineering Society General Meeting, 2006.
J. Nerg, M. Rilla, J. Pyrhönen, Thermal analysis of radial-flux electrical machines with a high power density, IEEE Transactions on Industrial Electronics, vol. 55, pp. 3543 – 3554, 2008.
B. Irwanto, K. Steigleder, O. Perros, M. Verrier, Large 60 Hz turbogenerators: mechanical design and improvements. Electric Machines and Drives Conference (IEMDC), USA, 2009.
Technical Letter, Understanding, Diagnosing and Reparing Leaks in Water-Cooled Generator Stator Windings (GE Power Systems, 2001).
Dortwegt, R. and Maughan, E.V., The chemistry of copper in water and related studies planned at the advanced photon sourse. Preceedings of Particle Accelerator Conference, pp.1456-1458, 2001.
Li, J., Liu, Z. and Fu, J., (2010), “Research on temperature field of turbogenerators on hollow strands blocked”, IEEE International Conference on Computer Science and Information Technology, pp.513-517.
Oliver, J., Michalec, J., Zimmerli, B., Joho, R., Krick, N. and Huber, A., (2001), “Generator winding design – Amos 3 with 25 years experience”, IEEE Transactions on Energy Conversion,vol.16, issue 1, pp.87-91.
D.L. Saums, Liquid cooling systems for electronics thermal management, IMAPS Chesapeake Symposium, USA, 2012.
A. Mohapatra, C. Satish, An Overview of Liquid Coolants for Electronics Cooling, Electronics Cooling, vol. 22, 2006.
Simons, R. Comparing heat transfer rate of liquid coolants using the Mouromtseff number, Electronics Cooling, vol.12, 2006.
R. Elwell, R. Garman, M. Doyle, Thermal management techniques for an advanced linear motor in an electric aircraft recovery system. IEEE Transactions On Magnetics, vol. 37, n. 1, pp. 476 – 479, 2001.
R. Lugo, L. Fournaison, J.-M. Chourot, J. Guilpart, An excess function method to model the thermophisical properties of one-phase secondary refrigerants. International Journal of Refrigeration vol. 25: pp. 916-923, 2001.
Product Technical Data, Thermophysical Properties of Brines (M. Conde Engineering, Zurich, Switzerland, 2002).
J. Pyrhönen, T. Jokinen, V. Hrabovcova, Design of Rotating Electrical Machines (Wiley, 2009).
V. Gnielinski, New equations for heat and mass transfer in turbulent pipe and channel flow. International chemical engineering: 25th anniversary issue, vol.41, pp. 1961-1985, 1988.
M.S. Bhatti, R.K. Shah, Turbulent and Transition Flow Convection Heat Transfer in Ducts (Wiley-Interscience: New York, 1987).
S.V. Patankar, Numerical heat transfer and fluid flow (Hemisphere, New York, 2008).
F.P. Incropera, D.P. DeWitt, Fundamentals of Heat and Mass Transfer (John Wiley&Sons, 6th edition, 2006).
P.L. Young, T.P. Brackbill, S.G. Kandlikar, Estimating roughness parameters resulting from various machining techniques for fluid flow applications, Proceedings of the fifth International Conference on Nanochannels, Microchannels and Minichannels, Mexico, 2007.
A. Milinder, Properties of Secondary Working Fluids for Indirect Systems (International Institute of Refrigeration, 2010).
R. Svoboda, D.A. Palmer, Behaviour of copper in generator stator cooling-water systems, Symposium on Hydrothermal Geochemistry, Germany, 2008.
S. Kadry, Corrosion analysis of stainless steel. European Journal of Scientific Research, vol. 4, pp. 508-516, 2008.
Technical Handbook, Raccorderie Metalliche, 2011.
Technical Letter, 90/10 copper-nickel vs. Type 316 stainless steel a functional comparison of two condenser tube alloys, Fineweld Tube, USA.
Technical Letter, Ferritic/Duplex/Austenitic Steel Grades for Condenser Tubes, Fisher Group, 2009.
G.F. Yuzwa, P. Eng, Water treatment program for glycol systems, ALBERTA Public Works, Supply&Service, 1990.
Product Technical Data, PEKASOL L, KUHLSOLE GmbH, Alsdorf, Germany, 2009.
Product Technical Data, GLYKOSOL N, KUHLSOLE GmbH, Alsdorf, Germany, 2009.
F. Marignetti, V.D. Colli, Thermal Analysis of an axial flux permanent-magnet synchronous machine. IEEE Transactions On Magnetics, vol.45, n.7, pp. 2970 – 2975, 2009.
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