Analysis of the Inlet Recirculation Phenomenon in a High-Speed Industrial Centrifugal Compressor: Experimental and Computational Study | 2024 Publication type A4 Conference proceedings Author(s) Ullah Tariq, Klüver Merle, Jaatinen-Värri Ahti, Turunen-Saaresti Teemu, Sobczak Krzysztof, Liskiewicz Grzegorz Energy - Transition to carbon-neutral world LUT School of Energy Systems
Centrifugal Compressor Design Analysis for Large-Scale Transcritical Carbon Dioxide Heat Pumps | 2024 Publication type A1 Journal article (refereed), original research Author(s) Uusitalo Antti, Jaatinen-Värri Ahti, Turunen-Saaresti Teemu Energy - Transition to carbon-neutral world LUT School of Energy Systems
Centrifugal compressor design and cycle analysis of large-scale high temperature heat pumps using hydrocarbons | 2024 Publication type A1 Journal article (refereed), original research Author(s) Uusitalo Antti, Jaatinen-Värri Ahti, Turunen-Saaresti Teemu, Honkatukia Juha, Tiainen Jonna Energy - Transition to carbon-neutral world LUT School of Energy Systems
Centrifugal Compressor Design Parameters Assessment for Hydrogen Compression | 2024 Publication type A4 Conference proceedings Author(s) Aleksandrov Andrei, Jaatinen-Värri Ahti, Uusitalo Antti, Turunen-Saaresti Teemu Energy - Transition to carbon-neutral world LUT School of Energy Systems
Centrifugal compressor design for high-temperature heat pumps | 2023 Publication type A1 Journal article (refereed), original research Author(s) Jaatinen-Värri Ahti, Honkatukia Juha, Uusitalo Antti, Turunen-Saaresti Teemu Energy - Transition to carbon-neutral world LUT School of Energy Systems
Design considerations for high-temperature heat pump centrifugal compressors | 2023 Publication type A4 Conference proceedings Author(s) Jaatinen-Värri Ahti, Tiainen Jonna, Honkatukia Juha, Uusitalo Antti, Turunen-Saaresti Teemu Energy - Transition to carbon-neutral world LUT School of Energy Systems
Design process and simulations for the rotor system of a high-efficiency 22 kW micro-gas-turbine range extender for electric vehicles | 2023 Publication type A1 Journal article (refereed), original research Author(s) Kim Heesoo, Nutakor Charles, Singh Shruti, Jaatinen-Värri Ahti, Nerg Janne, Pyrhönen Juha, Sopanen Jussi Energy - Transition to carbon-neutral world Mechanical Engineering LUT School of Energy Systems
Profitability comparison of active and passive energy efficiency improvements in public buildings | 2022 Publication type A1 Journal article (refereed), original research Author(s) Knuutila Mirika, Kosonen Antti, Jaatinen-Värri Ahti, Laaksonen Petteri Energy - Transition to carbon-neutral world LUT School of Energy Systems
Validation of the Axial Thrust Estimation Method for Radial Turbomachines | 2021 Publication type A1 Journal article (refereed), original research Author(s) Tiainen Jonna, Jaatinen-Värri Ahti, Grönman Aki, Sallinen Petri, Honkatukia Juha, Hartikainen Toni
Design and Testing of a Hot Gas Blower for Solid Oxide Fuel Cell Applications | 2020 Publication type A4 Conference proceedings Author(s) Honkatukia Juha, Jaatinen-Värri Ahti, Turunen-Saaresti Teemu, Grönman Aki, Sallinen Petri, Backman Jari
Effect of non-ideally manufactured riblets on airfoil and wind turbine performance | 2020 Publication type A1 Journal article (refereed), original research Author(s) Tiainen Jonna, Grönman Aki, Jaatinen-Värri Ahti, Pyy Lauri
Mechanical design of rotor-bearing system in a high-speed 20 kW range extender for battery electric vehicles | 2020 Publication type A4 Conference proceedings Author(s) Kim Heesoo, Nerg Janne, Jaatinen-Värri Ahti, Pyrhönen Juha, Sopanen Jussi Mechanical Engineering Electrical and Electronic Engineering LUT School of Energy Systems
Numerical analysis of working fluids for large scale centrifugal compressor driven cascade heat pumps upgrading waste heat | 2020 Publication type A1 Journal article (refereed), original research Author(s) Uusitalo Antti, Turunen-Saaresti Teemu, Honkatukia Juha, Tiainen Jonna, Jaatinen-Värri Ahti
CFD Modelling of a Centrifugal Compressor with Experimental Validation through Radial Diffuser Static Pressure Measurement | 2019 Publication type A1 Journal article (refereed), original research Author(s) Dewar Brett, Tiainen Jonna, Jaatinen-Värri Ahti, Creamer Mike, Dotcheva Mariana, Radulovic Jovana, Buick James
Experimental and analytical analysis of aero derivative micro gas turbine heat transfer and performance | 2019 Publication type A4 Conference proceedings Author(s) Grönman Aki, Sallinen Petri, Honkatukia Juha, Backman Jari, Uusitalo Antti, Nerg Janne, Jaatinen-Värri Ahti
Experimental and analytical analysis of vaned savonius turbine performance under different operating conditions | 2019 Publication type A1 Journal article (refereed), original research Author(s) Grönman Aki, Tiainen Jonna, Jaatinen-Värri Ahti Renewable Energy, Sustainability and the Environment Energy LUT School of Energy Systems
Effect of FreeStream Velocity Definition on Boundary Layer Thickness and Losses in Centrifugal Compressors | 2018 Publication type A1 Journal article (refereed), original research Author(s) Tiainen Jonna, Jaatinen-Värri Ahti, Grönman Aki, Turunen-Saaresti Teemu, Backman Jari
Fabrication of Surfaces with Reduced Friction Using Nanosecond Laser | 2018 Publication type A4 Conference proceedings Author(s) Kaakkunen Jarno, Tiainen Jonna, Jaatinen-Värri Ahti, Grönman Aki, Lohtander Mika
Loss Development Analysis of a Micro-Scale Centrifugal Compressor | 2018 Publication type A1 Journal article (refereed), original research Author(s) Tiainen Jonna, Jaatinen-Värri Ahti, Grönman Aki, Fischer Tore, Backman Jari
Modelling of Low-Reynolds-Number Centrifugal Compressors: Challenges in Performance and Flow Control Prediction | 2018 Publication type B3 Unrefereed conference proceedings Author(s) Tiainen Jonna, Grönman Aki, Jaatinen-Värri Ahti, Backman Jari
Nanosecond Laser Ablation of the Trapezoidal Structures for Turbomachinery Applications | 2018 Publication type A4 Conference proceedings Author(s) Kaakkunen Jarno, Tiainen Jonna, Jaatinen-Värri Ahti, Grönman Aki, Lohtander Mika
A Comparison of Small-Scale Gas Turbine Control Schemes | 2017 Publication type A4 Conference proceedings Author(s) Jaatinen-Värri Ahti, Malkamäki Matti, Backman Jari, Honkatukia Juha Energy Engineering and Power Technology Renewable Energy, Sustainability and the Environment Energy (miscellaneous) LUT School of Energy Systems
Direct Liquid Cooling Method verified with an Axial-Flux Permanent-Magnet Traction Machine Prototype | 2017 Publication type A1 Journal article (refereed), original research Author(s) Lindh Pia, Petrov Ilya, Jaatinen-Värri Ahti, Grönman Aki, Martinez-Iturralde Miguel, Satrústegui Marco, Pyrhönen Juha
Effect of Free-Stream Velocity Definition on Boundary Layer Thickness and Losses in Centrifugal Compressors | 2017 Publication type A4 Conference proceedings Author(s) Tiainen Jonna, Jaatinen-Värri Ahti, Grönman Aki, Turunen-Saaresti Teemu, Backman Jari
Flow Control Methods and Their Applicability in Low-Reynolds-Number Centrifugal Compressors - A Review | 2017 Publication type A2 Review article, literature review, systematic review Author(s) Tiainen Jonna, Grönman Aki, Jaatinen-Värri Ahti, Backman Jari
Influence of Reynolds Number Variation Method on Centrifugal Compressor Loss Generation | 2017 Publication type A4 Conference proceedings Author(s) Tiainen Jonna, Jaatinen-Värri Ahti, Grönman Aki, Backman Jari
Three spool high efficiency small scale gas turbine concept | 2017 Publication type A4 Conference proceedings Author(s) Malkamäki Matti, Jaatinen-Värri Ahti, Uusitalo Antti, Grönman Aki, Honkatukia Juha, Backman Jari, Hartikainen Toni
Centrifugal compressor tip clearance and impeller flow | 2016 Publication type A1 Journal article (refereed), original research Author(s) Jaatinen-Värri Ahti, Tiainen Jonna, Turunen-Saaresti Teemu, Grönman Aki, Ameli Alireza, Engeda Abraham, Backman Jari
Design of a 400 kW Gas Turbine Prototype | 2016 Publication type A4 Conference proceedings Author(s) Jaatinen-Värri Ahti, Nerg Janne, Uusitalo Antti, Ghalamchi Behnam, Uzhegov Nikita, Smirnov Alexander, Sikanen Eerik, Grönman Aki, Backman Jari, Malkamäki Matti
Experiences from Changing the Study Platform of Turbomachinery Course from Blended Education to Problem Based Learning | 2016 Publication type A4 Conference proceedings Author(s) Grönman Aki, Jaatinen-Värri Ahti, Backman Jari, Grönman Kaisa
Greenhouse gas reduction potential by producing electricity from biogas engine waste heat using organic Rankine cycle | 2016 Publication type A1 Journal article (refereed), original research Author(s) Uusitalo Antti, Uusitalo Ville, Grönman Aki, Luoranen Mika, Jaatinen-Värri Ahti
Importance of the vane exit Mach number on the axial clearance-related losses | 2016 Publication type A1 Journal article (refereed), original research Author(s) Grönman Aki, Biester Marc H-O, Turunen-Saaresti Teemu, Jaatinen-Värri Ahti, Backman Jari, Seume Jörg R
Numerical Study of the Reynolds Number Effect on the Centrifugal Compressor Performance and Losses | 2016 Publication type A4 Conference proceedings Author(s) Tiainen Jonna, Jaatinen-Värri Ahti, Grönman Aki, Backman Jari
A high efficiency microturbine concept | 2015 Publication type A4 Conference proceedings Author(s) Malkamäki Matti, Jaatinen-Värri Ahti, Honkatukia Juha, Backman Jari, Larjola Jaakko
Centrifugal compressor efficiency improvement and its environmental impact in waste water treatment | 2015 Publication type A1 Journal article (refereed), original research Author(s) Viholainen Juha, Grönman Kaisa, Jaatinen-Värri Ahti, Grönman Aki, Ukkonen Petri, Luoranen Mika
Design and Performance Measurements of a 6 kW High-Speed Micro Gas Turbine Prototype | 2015 Publication type A4 Conference proceedings Author(s) Grönman Aki, Honkatukia Juha, Sallinen Petri, Backman Jari, Uusitalo Antti, Turunen-Saaresti Teemu, Jaatinen-Värri Ahti Energy LUT School of Energy Systems
Numerical Investigation of Centrifugal Compressor Tip Clearance | 2015 Publication type A4 Conference proceedings Author(s) Jaatinen-Värri Ahti, Turunen-Saaresti Teemu, Grönman Aki, Backman Jari, Tiainen Jonna
Unsteady Numerical Investigation of Tip Clearance Flow and Rotor-Stator Interaction in the Centrifugal Compressor | 2015 Publication type B3 Unrefereed conference proceedings Author(s) Ameli Alireza, Turunen-Saaresti Teemu, Jaatinen-Värri Ahti, Tiainen Jonna Energy Engineering LUT School of Energy Systems
Influence of the axial turbine design parameters on the stator–rotor axial clearance losses | 2014 Publication type A1 Journal article (refereed), original research Author(s) Grönman Aki, Turunen-Saaresti Teemu, Röyttä Pekka, Jaatinen-Värri Ahti Energy LUT School of Energy Systems
Investigation of the Stage Performance and Flow Fields in a Centrifugal Compressor with a Vaneless Diffuser | 2014 Publication type A1 Journal article (refereed), original research Author(s) Jaatinen-Värri Ahti, Grönman Aki, Turunen-Saaresti Teemu, Backman Jari
Experimental study of centrifugal compressor tip clearance and vaneless diffuser flow fields | 2013 Publication type A1 Journal article (refereed), original research Author(s) Jaatinen-Värri Ahti, Turunen-Saaresti Teemu, Röyttä Pekka, Grönman Aki, Backman Jari
Experimental study of centrifugal compressor vaneless diffuser width | 2013 Publication type A1 Journal article (refereed), original research Author(s) Jaatinen-Värri Ahti, Röyttä Pekka, Turunen-Saaresti Teemu, Grönman Aki
Influence of the Different Design Parameters to the Centrifugal Compressor Tip Clearance Loss | 2013 Publication type A1 Journal article (refereed), original research Author(s) Turunen-Saaresti Teemu, Jaatinen Ahti
Laboratory testing of an active magnetic bearing supported permanent magnet 3.5 kW blower prototype | 2013 Publication type A4 Conference proceedings Author(s) Jastrzebski Rafal P., Smirnov Alexander, Nerg Janne, Jaatinen-Värri Ahti, Jaatinen Pekko, Lindh Tuomo, Pyrhönen Olli, Sopanen Jussi, Backman Jari
Performance and Flow Fields of a Supersonic Axial Turbine at Off-Design Conditions | 2013 Publication type A1 Journal article (refereed), original research Author(s) Grönman Aki-Pekka, Turunen-Saaresti Teemu, Röyttä Pekka, Jaatinen Ahti, Backman Jari
Study of the sensorless operating point estimation for turbocompressors | 2013 Publication type A4 Conference proceedings Author(s) Niinimäki Lauri, Ahonen Tero, Tamminen Jussi, Jaatinen-Värri Ahti, Ahola Jero, Tolvanen Jukka Energy Engineering and Power Technology Electrical and Electronic Engineering LUT School of Energy Systems
The tip clearance effects on the centrifugal compressor vaneless diffuser flow fields at off-design conditions | 2013 Publication type A4 Conference proceedings Author(s) Jaatinen-Värri Ahti, Turunen-Saaresti Teemu, Grönman Aki, Röyttä Pekka, Backman Jari
Effect of Diffuser Width and Tip Clearance on the Static Pressure Distributions in a Vaneless Diffuser of a High-speed Centrifugal Compressor | 2012 Publication type A4 Conference proceedings Author(s) Jaatinen Ahti, Grönman Aki-Pekka, Turunen-Saaresti Teemu
Experimental Study of the Effect of the tip clearance to the diffuser flow field and stage performance of a centrifugal compressor | 2012 Publication type A4 Conference proceedings Author(s) Jaatinen Ahti, Turunen-Saaresti Teemu, Grönman Aki-Pekka, Röyttä Pekka, Backman Jari
Sensorless Method for Detecting Surge in Variable-Speed-Driven Fan Systems | 2012 Publication type A4 Conference proceedings Author(s) Tamminen Jussi, Ahonen Tero, Ahola Jero, Jaatinen Ahti, Röyttä Pekka
Design and Implementation of Problem-Based Learning in a Graduate Engineering Course | 2011 Publication type A4 Conference proceedings Author(s) Jaatinen Ahti, Turunen-Saaresti Teemu, Backman Jari Fluid Flow and Transfer Processes Energy (miscellaneous) LUT School of Energy Systems
Effect of high negative incidence on the performance of a centrifugal compressor stage with conventional vaned diffusers | 2011 Publication type A1 Journal article (refereed), original research Author(s) Jaatinen Ahti, Grönman Aki, Turunen-Saaresti Teemu, Backman Jari Fluid Flow and Transfer Processes Energy (miscellaneous) LUT School of Energy Systems
Effect of Vaneless Diffuser Width on the Overall Performance of a Centrifugal Compressor | 2011 Publication type A1 Journal article (refereed), original research Author(s) Jaatinen Ahti, Grönman Aki, Turunen-Saaresti Teemu, Röyttä Pekka Fluid Flow and Transfer Processes Energy (miscellaneous) LUT School of Energy Systems
Influence of the Different Design Parameters to the Centrifugal Compressor Tip Clearance Loss | 2011 Publication type A4 Conference proceedings Author(s) Turunen-Saaresti Teemu, Jaatinen Ahti Fluid Flow and Transfer Processes Energy (miscellaneous) LUT School of Energy Systems
Experimental study of vaned diffusers in centrifugal compressor | 2010 Publication type A4 Conference proceedings Author(s) Jaatinen Ahti, Grönman Aki-Pekka, Turunen-Saaresti Teemu, Backman Jari Fluid Flow and Transfer Processes Energy (miscellaneous) LUT School of Energy Systems
Numerical Modelling of a Supersonic Axial Turbine Stator | 2010 Publication type A1 Journal article (refereed), original research Author(s) Grönman Aki, Turunen-Saaresti Teemu, Jaatinen Ahti, Backman Jari Fluid Flow and Transfer Processes Energy (miscellaneous) LUT School of Energy Systems
Blended Education in Turbomachinery and Fluid Dynamics | 2009 Publication type A4 Conference proceedings Author(s) Backman Jari, Turunen-Saaresti Teemu, Jaatinen Ahti
Effects of Different Blade Angle Distributions on Centrifugal Compressor Performance | 2009 Publication type A1 Journal article (refereed), original research Author(s) Röyttä Pekka, Grönman Aki, Jaatinen Ahti, Turunen-Saaresti Teemu, Backman Jari Fluid Flow and Transfer Processes Energy (miscellaneous) LUT School of Energy Systems
Experimental Study of Pinch in Vaneless Diffuser of Centrifugal Compressor | 2009 Publication type A4 Conference proceedings Author(s) Turunen-Saaresti Teemu, Grönman Aki-Pekka, Jaatinen Ahti
Performance Improvement of Centrifugal Compressor Stage with Pinched Geometry or Vaned Diffuser | 2009 Publication type G4 Doctoral dissertation (monograph) Author(s) Jaatinen Ahti
RADIAL FORCES IN A CENTRIFUGAL COMPRESSOR EQUIPPED WITH VANED DIFFUSERS | 2009 Publication type A4 Conference proceedings Author(s) Jaatinen Ahti, Backman Jari, Turunen-Saaresti Teemu
Vortex-putken käyttö kuivaussovellutuksissa, Loppuraportti, Tekes DrNo 1504/31/04, päätös No 40406/04 | 2005 Publication type D4 Published development or research report or study Author(s) Jaatinen Ahti, Larjola Jaakko, Backman Jari Fluid Flow and Transfer Processes Energy (miscellaneous) LUT School of Energy Systems