Jürg Alexander Schiffmann
EPFL STI IGM LAMD
MC B2 245 (Bâtiment MC)
Rue de la Maladière 71b, CP 526
2002 Neuchâtel 2
+41 21 695 45 48
Office: MC B2 245
EPFL › STI › IGM › LAMD
Website: https://lamd.epfl.ch/
+41 21 695 45 48
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EPFL › VPA › VPA-AVP-DLE › AVP-DLE-EDOC › EDEY-GE
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+41 21 695 45 48
EPFL › VPA › VPA-AVP-DLE › AVP-DLE-EDOC › EDRS-GE
Website: https://go.epfl.ch/phd-edrs
Publications
Errata: "A high-temperature, high-speed, oil-free syngas compressor for small-scale combined heat and power" [ASME J. Eng. Gas Turbines Power, 147(2), 021019; DOI: 10.1115/1.4066356
Journal of Engineering for Gas Turbines and Power. 2025. DOI : 10.1115/1.4070343.Dimensionless Group-Driven Ensemble Neural Networks for Robust Design Optimisation in Engineering
Journal of Computational Design and Engineering. 2025. DOI : 10.1093/jcde/qwaf056.Experimentally validated pre-design maps and performance estimation methods for small-scale turbopumps for organic rankine cycles
Journal of the Global Power and Propulsion Society. 2025. DOI : 10.33737/jgpps/195408.DARTS-NETGAB: Design Automation and Real-Time Simulation Using Neural Network Ensembles for Turbocompressors on Gas-Bearings
Journal of Mechanical Design. 2025. DOI : 10.1115/1.4068091.Robust design optimization of gas-lubricated herringbone grooved journal bearings: Surrogate modeling and experimental validation
Tribology International. 2025. DOI : 10.1016/j.triboint.2024.110429.Role and Opportunities of Gas bearing supported Turbomachinery in small-scale SOFC-CHP systems
Lausanne, EPFL, 2025. DOI : 10.5075/epfl-thesis-10683.Experimental results from a 70 kW steam-generating butane heat pump using off-the-shelf components
2024. 20th International Refrigeration and Air Conditioning Conference, Purdue, 2024-07-15-2024-07-18.A High-Temperature, High-Speed, Oil-Free Syngas Compressor for Small-Scale Combined Heat and Power
Journal of Engineering for Gas Turbines and Power. 2024. DOI : https://doi.org/10.1115/1.4066356.A High-Speed, High-Temperature, Micro-Cantilever Steam Turbine for Hot Syngas Compression in Small-Scale Combined Heat and Power
Journal of Engineering for Gas Turbines and Power. 2024. DOI : https://doi.org/10.1115/1.4066355.NMPC in Haptic Shared Control Steering: Optimizing Vehicle Motion
2024. 8 IFAC Conference on Nonlinear Model Predictive Control, Kyoto, Japan, 2024-08-21 - 2024-08-24. DOI : 10.1016/j.ifacol.2024.09.059.An Integrated Approach to Designing Robust Gas-Bearing Supported Turbocompressors through Surrogate Modeling and Constrained All-At-Once Multi-Objective Optimization
Journal of Mechanical Design. 2024. DOI : 10.1115/1.4065823.A High-Speed, High-Temperature Micro-Cantilever Steam Turbine for Hot Syngas Compression in Small-Scale Combined Heat and Power
2024. ASME Turbo Expo 2024: Turbomachinery Technical Conference and Exposition, London, UK, 2024-06-24 - 2024-06-28. DOI : 10.1115/GT2024-128096.A High-Temperature, High-Speed, Oil-Free Syngas Compressor for Small-Scale Combined Heat and Power
2024. ASME Turbo Expo 2024: Turbomachinery Technical Conference and Exposition, London, UK, 2024-06-24 - 2024-06-28. DOI : 10.1115/GT2024-125975.High rotational speed rotor and turbocompressor comprising the same
US20240191722A1 . 2024.Empowering turbocompressor design with AI: a unified approach to robustness and all-at-once optimization
Lausanne, EPFL, 2024. DOI : 10.5075/epfl-thesis-10785.The Haptic Link Enabling Driver-Automation Teaming
2024. 2024 IEEE 4th International Conference on Human-Machine Systems (ICHMS), Toronto, ON, Canada, May 15-17, 2024. p. 1 - 6. DOI : 10.1109/ICHMS59971.2024.10555848.Small-scale turbopumps for waste heat recovery applications based on an organic Rankine cycle, modeling, analytical and experimental investigations
2024. 7th International Seminar on ORC Power System, Seville, Spain, 2023-09-04 - 2023-09-06. p. 655 - 664. DOI : 10.12795/9788447227457_113.PARATURBOCAD: AUTOMATED PARAMETRIC GEOMETRY CONSTRUCTION FOR GAS-BEARING SUPPORTED TURBOCOMPRESSOR DESIGN WITH PYTHON
2024. ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Washington, United States, 2024-08-25 - 2024-08-28. DOI : 10.1115/DETC2024-143696.DARTS-NETGAB: DESIGN AUTOMATION AND REAL-TIME SIMULATION USING NEURAL NETWORKS ENSEMBLES FOR TURBOCOMPRESSORS ON GAS-BEARINGS
2024. ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Washington, United States, 2024-08-25 - 2024-08-28. DOI : 10.1115/DETC2024-143135.An Integrated Approach to Designing Robust Turbocompressors on Gas Bearings Through Surrogate Modeling and Constrained Multi-Objective Optimization
2023. ASME International Design Engineering Technical Conferences / Computers and Information in Engineering Conference (IDETC-CIE) / 49th Design Automation Conference (DAC), Boston, Massachusetts, USA, August 20-23, 2023. DOI : 10.1115/DETC2023-115201.Parametric Reduced Order Model of a Gas Bearings Supported Rotor
2023. ASME TurboExpo 2023. ASME Turbomachinery Technical Conference and Exposition (Turbo Expo) on Collaborate, Innovate and Empower - Propulsion and Power for a Sustainable Future, Boston, , MA, US, June 26-30, 2023. DOI : 10.1115/GT2023-102519.Robust Design of Herringbone Grooved Journal Bearings using Multi-Objective Optimization with Artificial Neural Networks
Journal of Turbomachinery. 2023. DOI : 10.1115/1.4063392.Robust Design of Herringbone Grooved Journal Bearings using Multi-Objective Optimization with Artificial Neural Networks
2023. ASME Turbomachinery Technical Conference and Exposition (Turbo Expo 2023) on Collaborate, Innovate and Empower - Propulsion and Power for a Sustainable Future, Boston, Massachusetts, USA, June 26-30, 2023. DOI : 10.1115/GT2023-102428.Towards a real-time capable hybrid-twin for gas-bearing supported high-speed turbocompressors
Energy. 2023. DOI : 10.1016/j.energy.2023.127385.Design, computational and experimental investigation of a small-scale turbopump for organic Rankine cycle systems
Energy Conversion and Management. 2023. DOI : 10.1016/j.enconman.2023.117073.A new method to interpolate POD reduced bases-Application to the parametric model order reduction of a gas bearings supported rotor
International Journal For Numerical Methods In Engineering. 2023. DOI : 10.1002/nme.7305.Design and experimental investigation of a herringbone grooved gas bearing supported turbocharger
Mechanical Systems and Signal Processing. 2023. DOI : 10.1016/j.ymssp.2022.109828.The influence of splitter blades and meridional profiles on the performance of small-scale turbopumps for ORC applications; analysis, neural network modeling and optimization
Thermal Science and Engineering Progress. 2023. DOI : 10.1016/j.tsep.2023.101734.Readiness evaluation of SOFC-MGT hybrid systems with carbon capture for distributed combined heat and power
Energy Conversion and Management. 2023. DOI : 10.1016/j.enconman.2023.116728.Haptics based multi-level collaborative steering control for automated driving
Communications Engineering. 2023. DOI : 10.1038/s44172-022-00051-2.Thermal management for gas lubricated, high-speed turbomachinery
Applied Thermal Engineering. 2023. DOI : 10.1016/j.applthermaleng.2022.119229.Dated: Guidelines for Creating Synthetic Datasets for Engineering Design Applications
2023. ASME International Design Engineering Technical Conferences / Computers and Information in Engineering Conference (IDETC-CIE) / 49th Design Automation Conference (DAC), Boston, MA, AUG 20-23, 2023.Small-scale turbopumps for waste heat recovery applications based on an organic Rankine cycle: a study from pre-design to experimental validation
Lausanne, EPFL, 2023. DOI : 10.5075/epfl-thesis-9859.Haptics based collaborative steering control in automated driving environments
Lausanne, EPFL, 2023. DOI : 10.5075/epfl-thesis-10237.High-speed turbocompressors for natural fluid heat-pumps: from integrated design to digital-twin
Lausanne, EPFL, 2023. DOI : 10.5075/epfl-thesis-8970.Brine-to-water heat pump test system for small-scale oil-free turbo compressors
2023. 26th International Congress of Refrigeration (IIR), Paris, FRANCE, 2023-08-21 - 2023-08-25. p. 1170 - 1179. DOI : 10.18462/iir.icr.2023.0531.Plug-and-play adaptive surrogate modeling of parametric nonlinear dynamics in frequency domain
2023Analysis and modeling of the tip leakage flow on the performance of small-scale turbopumps for ORC applications
Applied Thermal Engineering. 2022. DOI : 10.1016/j.applthermaleng.2022.119160.Heat transfer of flow boiling carbon dioxide in vertical upward direction
International Journal of Heat and Mass Transfer. 2022. DOI : 10.1016/j.ijheatmasstransfer.2022.123246.Experimental and numerical investigation of the unbalance behavior of rigid rotors supported by spiral-grooved gas journal bearings
Mechanical Systems And Signal Processing. 2022. DOI : 10.1016/j.ymssp.2022.109080.Adiabatic two-phase pressure drop of carbon dioxide in different channel orientations
International Journal of Heat and Fluid Flow. 2022. DOI : 10.1016/j.ijheatfluidflow.2022.108966.Experimental Investigation of Enhanced Grooves for Herringbone Grooved Journal Bearings
Journal of Tribology. 2022. DOI : 10.1115/1.4053978.Flow pattern observations and flow pattern map for adiabatic two-phase flow of carbon dioxide in vertical upward and downward direction
Experimental Thermal and Fluid Science. 2022. DOI : 10.1016/j.expthermflusci.2021.110526.Robust design using multiobjective optimisation and artificial neural networks with application to a heat pump radial compressor
Design Science. 2022. DOI : 10.1017/dsj.2021.25.Numerical and experimental investigation of spiral-grooved gas journal bearings
Lausanne, EPFL, 2022. DOI : 10.5075/epfl-thesis-10038.Which professional skills do students learn in engineering team-based projects?
European Journal of Engineering Education. 2022. DOI : 10.1080/03043797.2021.1920890.Unstable tilting motion of flexibly supported gas bearing bushings
Mechanical Systems and Signal Processing. 2022. DOI : 10.1016/j.ymssp.2021.107981.Efficient steam generation in industry - Combined heat pump cycle with mechanical vapor recompression
2022. 15th IIR-Gustav Lorentzen Conference on Natural Refrigerants, Trondheim, NORWAY, 2022-06-13 - 2022-06-15. p. 978 - 988. DOI : 10.18462/iir.gl2022.0049.Flow Boiling of Carbon Dioxide at Different Channel Orientations for the Thermal Management of Future Detector Technologies at the High-Luminosity Large Hadron Collider at CERN
Lausanne, EPFL, 2022. DOI : 10.5075/epfl-thesis-8930.Stability and Unbalance Analysis of Rigid Rotors Supported by Spiral Groove Bearings: Comparison of Different Approaches
Journal of Engineering for Gas Turbines and Power. 2021. DOI : 10.1115/1.4052025.A reduced order model to predict the machining time and cost of small-scale radial-inflow turbines
2021. 6th International Seminar on ORC Power Systems (ORC2021), Munich, Germany, October 11-13, 2021.The effects of the tip clearance on the performance of small-scale turbopumps for ORC applications; analysis and modeling
2021. 6th International Seminar on ORC Power Systems (ORC2021), Munich, Germany, October 11-13, 2021.Techno-Economic Optimization of an Integrated Biomass Waste Gasifier–Solid Oxide Fuel Cell Plant
Frontiers in Energy Research. 2021. DOI : 10.3389/fenrg.2021.665585.On the Application of Small-Scale Turbines in Industrial Steam Networks
Energies. 2021. DOI : 10.3390/en14113149.Theoretical and Experimental Investigation of a 34 Watt Radial-Inflow Steam Turbine with Partial-Admission
Journal of Engineering for Gas Turbines and Power. 2021. DOI : 10.1115/1.4049483.Experimental Investigation of a Small-Scale Organic Rankine Cycle Turbo-Generator Supported on Gas-Lubricated Bearings
Journal of Engineering for Gas Turbines and Power. 2021. DOI : 10.1115/1.4049988.Theoretical and Experimental Investigation of a 34 Watt Radial-Inflow Steam Turbine with Partial-Admission
2021. ASME Turbo Expo: Turbomachinery Technical Conference and Exposition, London, England - virtual conference, June 22-26, 2020. p. GT2020 - 15804, V008T20A023. DOI : 10.1115/GT2020-15804.Influence of Large Relative Tip Clearances for a Micro Radial Fan and Design Guidelines for Increased Efficiency
2021. ASME Turbo Expo: Turbomachinery Technical Conference and Exposition, London, England - virtual conference, June 22-26, 2020. p. GT2020 - 15994, V008T20A025. DOI : 10.1115/GT2020-15994.Prediction of the reaction forces of spiral-groove gas journal bearings by artificial neural network regression models
Journal of Computational Science. 2021. DOI : 10.1016/j.jocs.2020.101256.Experimental investigation and analysis of sequential jet impingement concepts for enhanced turbine cooling
Lausanne, EPFL, 2021. DOI : 10.5075/epfl-thesis-8721.Automated Design: A Journey Across Modelling, Optimization, and Education
Lausanne, EPFL, 2021. DOI : 10.5075/epfl-thesis-7945.Nonlinear study on a rigid rotor supported by herringbone grooved gas bearings: Theory and validation
Mechanical Systems and Signal Processing. 2021. DOI : 10.1016/j.ymssp.2020.106983.Automated Design Tool for Automotive Control Actuators
2020. 46th Design Automation Conference (DAC), Virtual, Online, August 17–19, 2020. DOI : 10.1115/DETC2020-22390.Realistic Constrained Multi-Objective Optimization Benchmark Problems from Design
IEEE Transactions on Evolutionary Computation. 2020. DOI : 10.1109/TEVC.2020.3020046.Actuator Synthesis and Optimization: Evaluation of Graph-Based Approaches
2020Experimental Assessment of a 3D-Printed Stainless Steel Gas Foil Bearing
Journal of Tribology. 2020. DOI : 10.1115/1.4047193.Extended Windage Loss Models for Gas Bearing Supported Spindles Operated in Dense Gases
Journal of Engineering for Gas Turbines and Power. 2020. DOI : 10.1115/1.4047124.Analysis of Spiral-Grooved Gas Journal Bearings by the Narrow-Groove Theory and the Finite Element Method At Large Eccentricities
Journal of Tribology. 2020. DOI : 10.1115/1.4045636.Flexible Support for Gas-Lubricated Bearing Bushings
Tribology Transactions. 2020. DOI : 10.1080/10402004.2020.1717702.Experimental characterization of a solid oxide fuel cell coupled to a steam-driven micro anode off-gas recirculation fan
Applied Energy. 2020. DOI : 10.1016/j.apenergy.2019.114219.The Role of Reynolds Number Effect and Tip Leakage in Compressor Geometry Scaling at Low Turbulent Reynolds Numbers
Journal of Turbomachinery. 2020. DOI : 10.1115/1.4045465.Theoretical and Experimental Investigation of a Small-scale, High-speed, and Oil-free Radial Anode Off-gas Recirculation Fan for Solid Oxide Fuel Cell Systems
Journal of Engineering for Gas Turbine and Power. 2020. DOI : 10.1115/1.4045104.Pressure Profile Measurements within The Gas Film of Journal Foil Bearings Using An Instrumented Rotor with Telemetry
Journal of Engineering for Gas Turbines and Power. 2020. DOI : 10.1115/1.4044798.Dynamic force coefficients identification on air-lubricated herringbone grooved journal bearing
Mechanical Systems and Signal Processing. 2020. DOI : 10.1016/j.ymssp.2019.106498.An Instrumented High-Speed Rotor with Embedded Telemetry for The Continuous Spatial Pressure Profile Measurement in Gas Lubricated Bearings: A Proof of Concept
Journal of Engineering for Gas Turbines and Power. 2020. DOI : 10.1115/1.4044797.Sofc system with anode off-gas recirculation
HRP20221077 ; SI3834244 ; ES2924046 ; PL3834244 ; RS63547 ; PT3834244 ; DK3834244 ; EP3834244 ; EP3834244 ; WO2020030796 ; EP3609006 . 2020.Small-scale organic Rankine cycle turbo-generator for waste heat recovery on truck engine
Lausanne, EPFL, 2020. DOI : 10.5075/epfl-thesis-10347.A Review of Grooved Dynamic Gas Bearings
Applied Mechanics Reviews. 2020. DOI : 10.1115/1.4044191.Experimental and Numerical Investigation of a Small-Scale Steam Turbine
2020Scale limitations of gas bearing supported turbocompressors for vapor compression cycles
International Journal of Refrigeration. 2020. DOI : 10.1016/j.ijrefrig.2019.09.019.Numerical and experimental investigations on non-contacting seals for small-scale applications
Lausanne, EPFL, 2020. DOI : 10.5075/epfl-thesis-10289.Advanced design methods and non-ideal gas lubrication applied to aerodynamic bearings
Lausanne, EPFL, 2020. DOI : 10.5075/epfl-thesis-7790.An Instrumented High-Speed Rotor With Embedded Telemetry For The Continuous Spatial Pressure Profile Measurement In Gas Lubricated Bearings: A Proof Of Concept
2019. ASME Turbo Expo: Turbomachinery Technical Conference and Exposition, Phoenix, AZ, Jun 17-21, 2019. DOI : 10.1115/GT2019-90983.Thin Gas Film Isothermal Condensation in Aerodynamic Bearings
Journal of Tribology. 2019. DOI : 10.1115/1.4044447.Design and Experimental Realization of a Steam-Driven Micro Recirculation Fan for Solid Oxide Fuel Cell Systems
2019. 16th Symposium on Solid Oxide Fuel Cells (SOFC-XVI), Kyoto, Japan, September 8-13, 2019. p. 187 - 193. DOI : 10.1149/09101.0187ecst.High temperature heat pumps – Theoretical study on low GWP HFO and HCFO refrigerants
2019. ICR 2019 - The 25th IIR International Congress of Refrigeration, Montréal, Québec, Canada, August 24-30, 2019.High temperature heat pump using HFO and HCFO refrigerants – system design and experimental results
2019. ICR 2019 - The 25th IIR International Congress of Refrigeration, Montréal, Québec, Canada, August 24-30, 2019.Multi-Objective Optimization of Grooved Gas Journal Bearings for Robustness in Manufacturing Tolerances
Tribology Transaction. 2019. DOI : 10.1080/10402004.2019.1642547.Data-Driven Model for the Dynamic Characteristics of O-Rings for Gas Bearing Supported Rotors
Journal of Applied Mechanics. 2019. DOI : 10.1115/1.4043473.Theoretical and Experimental Investigation of a Small-Scale, High-Speed, and Oil-Free Radial Anode Off-Gas Recirculation Fan for Solid Oxide Fuel Cell Systems
2019. ASME Turbo Expo 2019, Phoenix AZ, USA, June 17-21, 2019. p. GT2019 - 91361. DOI : 10.1115/GT2019-91361.Impact of large tip clearance ratios on the performance of a centrifugal compressor
2019. Euro Turbo Conderence ETC13, Lausanne, Switzerland, April 8-12, 2019.Assessing student learning of design and project management skills in a project-based course
SFDN Conference 2019, Zurich, Switzerland.Analytical and Numerical Investigation of a Small-scale Radial-Inflow Steam Turbine
2019Integrated Design, Optimization, and Experimental Realization of a Steam-Driven Micro Recirculation Fan for Solid Oxide Fuel Cell Systems
Lausanne, EPFL, 2019. DOI : 10.5075/epfl-thesis-9337.An Experimental Study of Gas Lubricated Foil Journal Bearings Using an Instrumented Rotor with Wireless Telemetry
Lausanne, EPFL, 2019. DOI : 10.5075/epfl-thesis-9163.Flexible support and enhanced groove geometries for gas lubricated bearings
Lausanne, EPFL, 2019. DOI : 10.5075/epfl-thesis-9774.Pressure Profile Measurements Within The Gas Film Of Journal Foil Bearings Using An Instrumented Rotor With Telemetry
2019. ASME Turbo Expo: Turbomachinery Technical Conference and Exposition, Phoenix, AZ, Jun 17-21, 2019. DOI : 10.1115/GT2019-90984.Mitigation of tip leakage induced phenomena in a low Reynolds number centrifugal compressor via blade loading distribution
Lausanne, EPFL, 2019. DOI : 10.5075/epfl-thesis-9720.Data-Driven Predesign Tool for Small-Scale Centrifugal Compressor in Refrigeration
Journal of Engineering for Gas Turbines and Power. 2018. DOI : 10.1115/1.4040845.High temperature heat pump using HFO and HCFO refrigerants – System design, simulation, and first experimental results
2018. 17 th International Refrigeration and Air Conditioning Conference at Purdue, Purdue, USA, July 9-12, 2018.Small, High-Speed, Oil-Free Radial Turbo-compressors for Cooling Applications: Refrigerant Selection
2018. 24 th International Compressor Engineering Conference, Purdue, USA, July 9-12, 2018.Dimensionless correlations and performance maps of scroll expanders for micro-scale Organic Rankine Cycles
Energy. 2018. DOI : 10.1016/j.energy.2018.05.001.Real-gas effects on aerodynamic bearings
Tribology International. 2018. DOI : 10.1016/j.triboint.2018.01.008.A co-rotational scroll machine
CN111630277 ; US11306717 ; US2021062807 ; EP3740679 ; CN111630277 ; WO2018134739 . 2018.Potential and Challenges of ORC driven Heat Pumps Based on Gas Bearing Supported Turbomachinery
Lausanne, EPFL, 2018. DOI : 10.5075/epfl-thesis-8567.Blade Tio Loss in a Small-Scale Fan
2017ORC Driven Heat Pump Running on Gas Bearings for Domestic Applications: Proof of Concept and Thermo-Economic Improvement Potential
2017. 12th IEA heat Pump Conference 2017, Rotterdam, Netherlands, May 14-18, 2017.Thermo-economic optimization of an ORC driven heat pump based on small scale turbomachinery and comparison with absorption heat pumps
International Journal of Refrigeration. 2017. DOI : 10.1016/j.ijrefrig.2017.05.021.Turbocompressors for Domestic Heat Pumps – A Critical Review
2017. 12th IEA Heat Pump Conference 2017, Rotterdam, Netherlands, May 14-18, 2017.Comparative Evaluation of Foil Bearings with Different Compliant Structures for Improved Manufacturability
2017. ASME Turbo Expo, Charlotte, North Carolina, USA, June 26-30, 2017. DOI : 10.1115/GT2017-63615.Theoretical analysis of steam generation methods - Energy, CO 2 emission, and cost analysis
Energy. 2017. DOI : 10.1016/j.energy.2017.04.088.Heat Pump driven by a Small-Scale Oil-Free Turbocompressor – System Design and Simulation
2017. 12th IEA Heat Pump Conference 2017, Rotterdam, Netherlands, May 14-18, 2017.The Role of Impeller Outflow Conditions on the Performance of Vaned Diffusers
Journal of Turbomachinery. 2017. DOI : 10.1115/1.4035048.Modeling and Designing of a Radial Anode Off-Gas Recirculation Fan for Solid Oxide Fuel Cell Systems
Journal of Electrochemical Energy Conversion and Storage. 2017. DOI : 10.1115/1.4036401.The Role of Impeller Outflow Conditions on the Performance of Vaned Diffusers
2016. ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition, Seoul, South Korea, June 13 – 17, 2016. DOI : 10.1115/GT2016-56168.Design of Oil-Free Turbocompressors for a Two-Stage Industrial Heat Pump under Variable Operating Conditions
2016. 23 rd International Compressor Engineering Conference at Purdue, Purdue, West Lafayette, USA, July 11-14, 2016.Two-Stage Heat Pump using Oil-Free Turbocompressors – System Design and Simulation
2016. 16 th International Refrigeration and Air Conditioning Conference at Purdue, Purdue, West Lafayette, USA, July 11-14, 2016.Experimental investigation of a two-stage oil-free domestic Air/Water heat pump prototype powered by an oil-free high-speed twin-stage radial compressor rotating on gas bearings
2016. 16 th International Refrigeration and Air Conditioning Conference at Purdue, Purdue, West Lafayette, USA, July 11-14, 2016.Theoretical Study of a Novel Oil-Free Co-Rotating Scroll Compressor Integrated into a Hybrid Absorption Heat Pumps
2016. 12th IIR-Gustav Lorentzen Conference on Natural Refrigerants, Edinburgh, UK, 21st-24th August 2016.Analysis of a Combined Absorption Cycle for Power and Cooling Production Using a Novel Oil-Free Co-Rotating Scroll Expander
2016. 12th IIR-Gustav Lorentzen Conference on Natural Refrigerants, Edinburgh, UK, 21st-24th August 2016.Multi-Temperature Heat Pumps - A Literature Review
2016. 16 th International Refrigeration and Air Conditioning Conference at Purdue, Purdue, West Lafayette, USA, July 11-14, 2016.Integrated Design and Multi-objective Optimization of a Single Stage Heat-Pump Turbocompressor
Journal of Turbomachinery. 2015. DOI : 10.1115/1.4029123.Potential of Small-Scale Turbomachinery for Waste Heat Recovery on Automotive Internal Combustion Engines
2015. 3rd International Seminar on ORC Power Systems (ASME-ORC2015), Brussels, Belgium, October 12-14, 2015.Water injection effect on a novel oil-free Co-Rotating scroll machine
2015. VII Congreso Internacional de Ingeniería Mecánica, Cartagena, Colombia, April 28-30, 2015.Co-rotating scroll machinery applied to vapor power and vapor compression cycles
2015. 24th IIR International Congress of Refrigeration (ICR2015), Yokohama, Japan, August 16-22, 2015.Performance assessment and comparison of thermally driven heat pumps systems
2015. 24th IIR International Congress of Refrigeration (ICR2015), Yokohama, Japan, August 16-22, 2015.Towards the Next-Generation of Solid Oxide Fuel Cell Systems
2015. ECS Conference on Electrochemical Energy Conversion & Storage with SOFC-XIV, Glasgow, UK, July 26-31, 2015. p. 2373 - 2386. DOI : 10.1149/06801.2373ecst.Technical feasibility of a novel oil-free co-rotating scroll expander for a Kalina cycle
2015. Ammonia and CO2 Refrigeration Technology, Ohrid, Macedonia, April 16-18, 2015.Modeling and Experimental Investigation of an Oil-Free Micro Compressor-Turbine Unit for an ORC Driven Heat Pump
2014. ASME TurboExpo 2014, Düsseldorf, Germany, June 16-20, 2014. p. ASME - Paper GT2014. DOI : 10.1115/GT2014-25112.Enhanced Groove Geometry for Herringbone Grooved Journal Bearings
ASME Journal of Engineering for Gas Turbines and Power. 2013. DOI : 10.1115/1.4025035.Enhanced Groove Geometry for Herringbone Grooved Journal Bearing
2013. ASME Turbo Expo 2013, San Antonio, Texas, USA, June 3-7, 2013. p. GT2013 - 95464. DOI : 10.1115/GT2013-95464.Integrated Design and Multi-Objective Optimization of a Single Stage Heat-Pump Turbocompressor
2013. International Design Enginneering Technical Conferences & Computers and Information in Engineering Conference IDETC/CIE 2013, Portland, Oregon, USA, August 4-7, 2013. p. DETC2013 - 12180. DOI : 10.1115/DETC2013-12180.Implementation of a scroll booster compressor into a single-stage air-water heat pump for peak winter day
2010. International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact on Energy Systems, Lausanne, Switzerland, June 14-17, 2010.Experimental investigation of a direct driven radial compressor for domestic heat pumps
International Journal of Refrigeration. 2009. DOI : 10.1016/j.ijrefrig.2009.07.006.Integrated design, optimization and experimental investigation of a direct driven turbocompressor for domestic heat pumps
Lausanne, EPFL, 2008. DOI : 10.5075/epfl-thesis-4126.High-Speed Low Power Radial Turbocompressor For Oil-Free Heatpumps
2006. Purdue Compressor Engineering Conference, Rawls Hall, Purdue University campus, Lafayette USA, 15-20 July 2006.Multi-Objective Optimisation of Herringbone Grooved Gas Bearing Supporting a High Speed Rotor, Taking into account Rarefied Gas and Real Gas Effects
2006. 8th Biennial ASME Conference on Engineering Systems Design and Analysis, Torino, Italy, 4-7 July 2006. p. 857 - 865. DOI : 10.1115/ESDA2006-95085.Theoretical Design of a High Speed, Oil Free Radial Compressor for Domestic Heat Pumps
2005. 8th-IEAHPC-2005, Las Vegas, 30 may - 2 june 2005.Theoretical Design of a High-Speed Low Power Radial Turbocompressor
2005. 6th Europen Turbomachinery Conference, Lille, France.Teaching & PhD
PhD Students
Hendrik Dietmar Schillinger, Gabriele Iovanna, Husam Jubran, Selahittin Atilay Zervent, Harshita Ravindra Agarwal, Anupam Jena, Issam Soukhmane, Tristan Wolff Schwab, Aman Jain, Masato Omotsubo, Phillip Huwiler, Konstantin Andreas Jacoby, Andrii Artomov, Arnau Catala I Rams, Elize Alwash, Emanuele Pallaoro, Anna Abramishvili
Past EPFL PhD Students
Violette Mounier, Karim Magdi Zakaria Abdelrahman Shalash, Patrick Hubert Wagner, Markus Diehl, Philipp Kaspar Bättig, Kévin Rosset, Eliott Philippe Guenat, Suresh Katuwal Chhetri, Michele Gaffuri, Cyril Picard, David Schmid, Elia Iseli, Luis Eric Olmedo Ocampo, Sajjad Zakeralhoseini, Tomohiro Nakade, Soheyl Massoudi, Victoria He
Courses
CCMX Tribology and Surfaces Interactions
MSE-667
This course is intended to give to the participants (graduates, researchers and industrial professionals) a solid background in tribology and surface interactions. It covers the fundamentals concepts of tribology including surfaces, contact mechanics, friction, lubrication and wear.
Dynamical effects in mechanical design
ME-311
This course introduces the basis for modeling the effects of kinematics and dynamics of mechanical systems in design. The students will be able to explain and model dynamic phenomena.
Heat pump systems
ME-459
This course aims to study heat pumping cycles and technologies, and equipment, such as compressors (positive displacement and dynamic), heat exchangers, and expansion valves.
Thin Film Lubrication and Gas-Lubricated Bearings
ENG-649
This course introduces thin film lubrication and its applications to gas-lubricated bearings, including rotordynamics to enable the assessment of the operation of gas-bearing supported rotors.