Pekka Röyttä

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

R. Scott Semken, M. Polikarpova, Pekka Röyttä et al. · IET Renewable Power Generation · 2012 · 155 citations

Engineering, Electrical Engineering, Electric Machines +14

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

M. Polikarpova, Pavel Ponomarev, Pekka Röyttä et al. · IET Electric Power Applications · 2015 · 52 citations

Engineering, Electrical Engineering, Mechanical Engineering +17

Optimising the refrigeration cycle with a two-stage centrifugal compressor and a flash intercooler

Pekka Röyttä, Teemu Turunen-Saaresti, Juha Honkatukia · International Journal of Refrigeration · 2009 · 24 citations

Engineering, Industrial Engineering, Air Conditioning +14

Effect of vaneless diffuser width on the overall performance of a centrifugal compressor

Aki Grönman, Teemu Turunen-Saaresti, Pekka Röyttä · Proceedings of the Institution of Mechanical Engineers Part A Journal of Power and Energy · 2011 · 22 citations

Engineering, Architectural Engineering, Air Conditioning +12

Experimental study of centrifugal compressor vaneless diffuser width

Ahti Jaatinen‐Värri, Pekka Röyttä, Teemu Turunen-Saaresti et al. · Journal of Mechanical Science and Technology · 2013 · 22 citations · Full text

Engineering, Aerospace Engineering, Aerodynamics +6