Pekka Röyttä
Pekka Röyttä
Institute of High Performance Computing, Singapore, Singapore
Verified email at ihpc.a-star.edu.sg
Title
Cited by
Cited by
Year
Direct-drive permanent magnet generators for high-power wind turbines: benefits and limiting factors
RS Semken, M Polikarpova, P Röyttä, J Alexandrova, J Pyrhönen, J Nerg, ...
IET Renewable Power Generation 6 (1), 1-8, 2012
1662012
Effect of vaneless diffuser width on the overall performance of a centrifugal compressor
A Jaatinen, A Grönman, T Turunen-Saaresti, P Röyttä
Proceedings of the Institution of Mechanical Engineers, Part A: Journal of …, 2011
342011
Direct liquid cooling for an outer‐rotor direct‐drive permanent‐magnet synchronous generator for wind farm applications
M Polikarpova, P Ponomarev, P Röyttä, S Semken, Y Alexandrova, ...
IET Electric Power Applications 9 (8), 523-532, 2015
322015
Predicting off-design range and performance of refrigeration cycle with two-stage centrifugal compressor and flash intercooler
T Turunen-Saaresti, P Röyttä, J Honkatukia, J Backman
international journal of refrigeration 33 (6), 1152-1160, 2010
312010
Optimising the refrigeration cycle with a two-stage centrifugal compressor and a flash intercooler
P Röyttä, T Turunen-Saaresti, J Honkatukia
International Journal of Refrigeration 32 (6), 1366-1375, 2009
302009
Effects of different blade angle distributions on centrifugal compressor performance
P Röyttä, A Grönman, A Jaatinen, T Turunen-Saaresti, J Backman
International Journal of Rotating Machinery 2009, 2009
292009
Experimental study of centrifugal compressor vaneless diffuser width
A Jaatinen-Värri, P Röyttä, T Turunen-Saaresti, A Grönman
Journal of mechanical science and technology 27 (4), 1011-1020, 2013
252013
Thermal design and analysis of a direct-water cooled direct drive permanent magnet synchronous generator for high-power wind turbine application
M Polikarpova, P Röyttä, J Alexandrova, S Semken, J Nerg, J Pyrhönen
2012 XXth International Conference on Electrical Machines, 1488-1495, 2012
212012
Experimental study of centrifugal compressor tip clearance and vaneless diffuser flow fields
A Jaatinen-Värri, T Turunen-Saaresti, P Röyttä, A Grönman, J Backman
Proceedings of the Institution of Mechanical Engineers, Part A: Journal of …, 2013
142013
Experimental study of the effect of the tip clearance to the diffuser flow field and stage performance of a centrifugal compressor
A Jaatinen, T Turunen-Saaresti, A Grönman, P Röyttä, J Backman
Turbo Expo: Power for Land, Sea, and Air 44748, 641-648, 2012
132012
Performance and flow fields of a supersonic axial turbine at off-design conditions
A Grönman, T Turunen-Saaresti, P Röyttä, A Jaatinen, J Backman
Proceedings of the Institution of Mechanical Engineers, Part A: Journal of …, 2013
112013
Simulation of the spherical orientation probability distribution of paper fibers in an entire suspension using immersed boundary methods
T Johnson, P Röyttä, A Mark, F Edelvik
Journal of Non-Newtonian Fluid Mechanics 229, 1-7, 2016
102016
The tip clearance effects on the centrifugal compressor vaneless diffuser flow fields at off-design conditions
A Jaatinen-Värri, T Turunen–Saaresti, A Grönman, P Röyttä, J Backman
10 th European Conference on Turbomachinery Fluid dynamics & Thermodynamics, 2013
82013
Influence of the axial turbine design parameters on the stator–rotor axial clearance losses
A Grönman, T Turunen-Saaresti, P Röyttä, A Jaatinen-Värri
Proceedings of the Institution of Mechanical Engineers, Part A: Journal of …, 2014
72014
Study of a vapor-compression air-conditioning system for jetliners
P Röyttä
Lappeenranta University of Technology, 2009
62009
Sensorless method for detecting surge in variable-speed-driven fan systems
J Tamminen, T Ahonen, J Ahola, A Jaatinen, P Röyttä
Ternational Conference on Condition Monitoring and Machinery Failure …, 2012
42012
Thermal design and analysis of a direct-water-cooled permanent-magnet synchronous generator for high-power direct-drive wind turbine applications
M Polikarpova, P Röyttä, S Semken, J Nerg, J Pyrhönen
ICREPQ 11, 1488-1495, 2010
32010
Electric machine with modular stator coils and cooling tubes
J Pyrhönen, J Nerg, H Jussila, Y Alexandrova, M Polikarpova, ...
US Patent 9,712,011, 2017
22017
Liquid internal cooling of electric machine windings in arctic conditions
P Röyttä, M Polikarpova, J Nerg, J Pyrhönen
The XIX International Conference on Electrical Machines-ICEM 2010, 1-5, 2010
12010
Centrifugal Compressor Working Fluids for Refrigeration Cycle
P Ro¨ ytta¨, J Honkatukia, T Turunen-Saaresti
Turbo Expo: Power for Land, Sea, and Air 48852, 89-97, 2009
12009
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