Pekka Röyttä

发表

Direct liquid cooling for an outer-rotor direct-drive permanent-magnet synchronous generator for wind farm applications

Juha Pyrhonen, Maria Polikarpova, Pavel Ponomarev, 2015 .

Performance and flow fields of a supersonic axial turbine at off-design conditions

Aki Grönman, Jari Backman, Pekka Röyttä, 2013 .

Information Processing Approach in Organisational Cognitive Structures: Relationship between Top and Middle Managers' Cognitions

Pekka Röyttä, Pasi Luukka, Vladimir Platonov, 2016, Int. J. Inf. Syst. Soc. Chang..

Influence of the axial turbine design parameters on the stator–rotor axial clearance losses

Aki Grönman, Pekka Röyttä, Teemu Turunen-Saaresti, 2014 .

Study of a vapor-compression air-conditioning system for jetliners

Pekka Röyttä, 2009 .

The stator of the electric machine and the electric machine

Juha Pyrhonen, Maria Polikarpova, Pekka Röyttä, 2010 .

Direct-drive permanent magnet generators for high-power wind turbines: benefits and limiting factors

Aki Mikkola, Jari Backman, Juha Pyrhonen, 2012 .

Virtauslaskennankäyttö keskipakopumpun eroosiokulumisen mallintamisessa

Pekka Röyttä, 2006 .

Experimental study of centrifugal compressor tip clearance and vaneless diffuser flow fields

Aki Grönman, Jari Backman, Pekka Röyttä, 2013 .

Liquid Internal Cooling of High-Power Synchronous Permanent Magnet Generator Winding in Arctic Conditions

M. Polikarpova, Juha Pyrhonen, Pekka Röyttä, 2013 .

Centrifugal Compressor Working Fluids for Refrigeration Cycle

Juha Honkatukia, Pekka Röyttä, Teemu Turunen-Saaresti, 2009 .

Thermal design and analysis of a direct-water cooled permanent magnet synchronous generator for high power direct-drive wind turbine applications

Juha Pyrhonen, Pekka Röyttä, Janne Nerg, 2011 .

Predicting off-design range and performance of refrigeration cycle with two-stage centrifugal compressor and flash intercooler

Juha Honkatukia, Jari Backman, Pekka Röyttä, 2010 .

Experimental Study of the Effect of the Tip Clearance to the Diffuser Flow Field and Stage Performance of a Centrifugal Compressor

Aki Grönman, Jari Backman, Pekka Röyttä, 2012 .