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Ricardo F. Martinez-Botas
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Proceedings Papers

Unsteady Responses of the Impeller of a Centrifugal Compressor Exposed to Pulsating Backpressure

Mengying Shu, Mingyang Yang, Ricardo F. Martinez-Botas, Kangyao Deng, Lei Shi
Proc. ASME. GT2018, Volume 2B: Turbomachinery, V02BT44A024, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-76851
https://doi.org/10.1115/GT2018-76851
View Paper titled, Unsteady Responses of the Impeller of a Centrifugal Compressor Exposed to Pulsating Backpressure
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Topics: Compressors, Impellers, Flow (Dynamics), Engines, Simulation, Turbochargers, Airfoils, Boundary-value problems, Computational fluid dynamics, Cylinders
Proceedings Papers

3D Computational Analysis of a Compressor for Heavy Duty Truck Engine Turbochargers

Matthias Abel, Peter Newton, Ricardo F. Martinez-Botas, Michael Wöhr, Markus Müller, Johannes Leweux
Proc. ASME. GT2018, Volume 2B: Turbomachinery, V02BT44A012, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75688
https://doi.org/10.1115/GT2018-75688
View Paper titled, 3D Computational Analysis of a Compressor for Heavy Duty Truck Engine Turbochargers
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Topics: Compressors, Engines, Trucks, Turbochargers, Computational fluid dynamics, Diffusers, Pressure, Steady state, Flow (Dynamics), Fuel consumption
Proceedings Papers

Analytical Investigation of a Thermal-Supercharged Internal Combustion Engine Compounded With Organic Rankine Cycle for Waste Heat Recovery

Manuel Jiménez-Arreola, Fabio Dal Magro, Alessandro Romagnoli, Meng Soon Chiong, Srithar Rajoo, Ricardo F. Martinez-Botas
Proc. ASME. GT2017, Volume 3: Coal, Biomass and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration Applications; Organic Rankine Cycle Power Systems, V003T28A005, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-65096
https://doi.org/10.1115/GT2017-65096
View Paper titled, Analytical Investigation of a Thermal-Supercharged Internal Combustion Engine Compounded With Organic Rankine Cycle for Waste Heat Recovery
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Topics: Heat recovery, Internal combustion engines, Organic Rankine cycle, Rankine cycle, Engines, Pressure, Exhaust systems, Waste heat, Turbochargers, Benzene
Proceedings Papers

Development and Experimental Validation of a Low Order Turbine Model Under Highly Pulsating Flow

Karl G. Hohenberg, Peter J. Newton, Ricardo F. Martinez-Botas, Martin Halamek, Kotaro Maeda, Julien Bouilly
Proc. ASME. GT2017, Volume 2C: Turbomachinery, V02CT44A023, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-63983
https://doi.org/10.1115/GT2017-63983
View Paper titled, Development and Experimental Validation of a Low Order Turbine Model Under Highly Pulsating Flow
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Topics: Pulsatile flow, Turbines, Modeling, Computer software, Engine design, Engineering standards, Engines, Errors, Flow (Dynamics), Rotors
Proceedings Papers

3-D Computational Loss Analysis of an Asymmetric Volute Twin-Scroll Turbocharger

Torsten Palenschat, Peter Newton, Ricardo F. Martinez-Botas, Markus Müller, Johannes Leweux
Proc. ASME. GT2017, Volume 8: Microturbines, Turbochargers and Small Turbomachines; Steam Turbines, V008T26A016, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-64190
https://doi.org/10.1115/GT2017-64190
View Paper titled, 3-D Computational Loss Analysis of an Asymmetric Volute Twin-Scroll Turbocharger
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Topics: Turbochargers, Exhaust gas recirculation, Exhaust systems, Emissions, Turbines, Combustion, Cylinders, Flow (Dynamics), Nitrogen oxides, Trucks
Proceedings Papers

Radial Turboexpander Optimization Over Discretized Heavy-Duty Test Cycles for Mobile Organic Rankine Cycle Applications

Miles C. Robertson, Aaron W. Costall, Peter J. Newton, Ricardo F. Martinez-Botas
Proc. ASME. GT2016, Volume 3: Coal, Biomass and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration; Organic Rankine Cycle Power Systems, V003T25A007, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56754
https://doi.org/10.1115/GT2016-56754
View Paper titled, Radial Turboexpander Optimization Over Discretized Heavy-Duty Test Cycles for Mobile Organic Rankine Cycle Applications
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Topics: Cycles, Optimization, Organic Rankine cycle, Emissions, Design, Geometry, Turbines, Flow (Dynamics), Construction equipment, Diesel engines
Proceedings Papers

Influence of Geometrical Parameters on Aerodynamic Optimization of a Mixed-Flow Turbocharger Turbine

Uswah Khairuddin, Aaron W. Costall, Ricardo F. Martinez-Botas
Proc. ASME. GT2015, Volume 2C: Turbomachinery, V02CT42A002, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-42053
https://doi.org/10.1115/GT2015-42053
View Paper titled, Influence of Geometrical Parameters on Aerodynamic Optimization of a Mixed-Flow Turbocharger Turbine
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Topics: Flow (Dynamics), Optimization, Turbines, Turbochargers, Geometry, Computational fluid dynamics, Genetic algorithms, Blades, Turbine blades
Proceedings Papers

Assessment of Partial-Admission Characteristics in Twin-Entry Turbine Pulse Performance Modelling

Meng Soon Chiong, Srithar Rajoo, Alessandro Romagnoli, Aaron W. Costall, Ricardo F. Martinez-Botas
Proc. ASME. GT2015, Volume 2C: Turbomachinery, V02CT42A022, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-42687
https://doi.org/10.1115/GT2015-42687
View Paper titled, Assessment of Partial-Admission Characteristics in Twin-Entry Turbine Pulse Performance Modelling
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Topics: Modeling, Turbines, Flow (Dynamics), Cycles, Engines, Exhaust systems, Test facilities
Proceedings Papers

Assessment of Turbocharger Turbine Unsteady Flow Modelling Methodology on Engine Performance

Ammar Mustafa, Ricardo F. Martinez-Botas, Apostolos Pesiridis, Meng Soon Chiong, Srithar Rajoo
Proc. ASME. ESDA2014, Volume 1: Applied Mechanics; Automotive Systems; Biomedical Biotechnology Engineering; Computational Mechanics; Design; Digital Manufacturing; Education; Marine and Aerospace Applications, V001T02A014, July 25–27, 2014
Publisher: American Society of Mechanical Engineers
Paper No: ESDA2014-20392
https://doi.org/10.1115/ESDA2014-20392
View Paper titled, Assessment of Turbocharger Turbine Unsteady Flow Modelling Methodology on Engine Performance
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Topics: Engines, Modeling, Turbines, Turbochargers, Unsteady flow, Steady state, Computer software, Design, Flow (Dynamics), Simulation
Proceedings Papers

Online Performance Monitoring of Industrial Compressors Using Meanline Modelling

Matteo Cicciotti, Dionysios P. Xenos, Ala E. F. Bouaswaig, Nina F. Thornhill, Ricardo F. Martinez-Botas
Proc. ASME. GT2014, Volume 2D: Turbomachinery, V02DT42A003, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-25088
https://doi.org/10.1115/GT2014-25088
View Paper titled, Online Performance Monitoring of Industrial Compressors Using Meanline Modelling
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Topics: Compressors, Modeling, Pressure, Inlet guide vanes, Flow (Dynamics), Machinery, Maintenance, Temperature
Journal Articles

Radial Turbine Rotor Response to Pulsating Inlet Flows

Teng Cao, Liping Xu, Mingyang Yang, Ricardo F. Martinez-Botas
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. July 2014, 136(7): 071003.
Paper No: TURBO-13-1174
https://doi.org/10.1115/1.4025948
Published Online: December 27, 2013
View Article titled, Radial Turbine Rotor Response to Pulsating Inlet Flows
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Topics: Flow (Dynamics), Pressure, Rotors, Turbines, Waves, Numerical analysis
Proceedings Papers

Mild Hybridization via Electrification of the Air System: Electrically Assisted and Variable Geometry Turbocharging Impact on an Off-Road Diesel Engine

Nicola Terdich, Ricardo F. Martinez-Botas, Alessandro Romagnoli, Apostolos Pesiridis
Proc. ASME. GT2013, Volume 6C: Turbomachinery, V06CT40A023, June 3–7, 2013
Publisher: American Society of Mechanical Engineers
Paper No: GT2013-95811
https://doi.org/10.1115/GT2013-95811
View Paper titled, Mild Hybridization via Electrification of the Air System: Electrically Assisted and Variable Geometry Turbocharging Impact on an Off-Road Diesel Engine
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Topics: Diesel engines, Geometry, Roads, Engines, Turbochargers, Transients (Dynamics), Turbines, Energy efficiency, Bearings, Brakes
Proceedings Papers

Radial Turbine Rotor Response to Pulsating Inlet Flows

Teng Cao, Liping Xu, Mingyang Yang, Ricardo F. Martinez-Botas
Proc. ASME. GT2013, Volume 6C: Turbomachinery, V06CT40A009, June 3–7, 2013
Publisher: American Society of Mechanical Engineers
Paper No: GT2013-95182
https://doi.org/10.1115/GT2013-95182
View Paper titled, Radial Turbine Rotor Response to Pulsating Inlet Flows
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Topics: Flow (Dynamics), Rotors, Turbines, Cycles, Waves, Numerical analysis, Pulsatile flow, Design, Pressure, Transients (Dynamics)
Proceedings Papers

Assessment of Cycle Averaged Turbocharger Maps Through One Dimensional and Mean-Line Coupled Codes

Meng Soon Chiong, Srithar Rajoo, Aaron W. Costall, Wan Saiful-Islam Bin Wan Salim, Alessandro Romagnoli, Ricardo F. Martinez-Botas
Proc. ASME. GT2013, Volume 6C: Turbomachinery, V06CT40A026, June 3–7, 2013
Publisher: American Society of Mechanical Engineers
Paper No: GT2013-95906
https://doi.org/10.1115/GT2013-95906
View Paper titled, Assessment of Cycle Averaged Turbocharger Maps Through One Dimensional and Mean-Line Coupled Codes
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Topics: Cycles, Turbochargers, Engines, Turbines, Emissions, Flow (Dynamics), Internal combustion engines, Modeling, Turbocharged engines, Carbon dioxide
Proceedings Papers

Integration of Unsteady Effects in the Turbocharger Design Process

Apostolos Pesiridis, Sotirios Lioutas, Ricardo F. Martinez-Botas
Proc. ASME. GT2012, Volume 5: Manufacturing Materials and Metallurgy; Marine; Microturbines and Small Turbomachinery; Supercritical CO2 Power Cycles, 721-733, June 11–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: GT2012-69053
https://doi.org/10.1115/GT2012-69053
View Paper titled, Integration of Unsteady Effects in the Turbocharger Design Process
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Topics: Design, Flow (Dynamics), Turbochargers, Unsteady flow
Proceedings Papers

A High Performance Low Pressure Ratio Turbine for Engine Electric Turbocompounding

Aman M. I. Mamat, Muhamad H. Padzillah, Alessandro Romagnoli, Ricardo F. Martinez-Botas
Proc. ASME. GT2011, Volume 3: Controls, Diagnostics and Instrumentation; Education; Electric Power; Microturbines and Small Turbomachinery; Solar Brayton and Rankine Cycle, 771-784, June 6–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: GT2011-45541
https://doi.org/10.1115/GT2011-45541
View Paper titled, A High Performance Low Pressure Ratio Turbine for Engine Electric Turbocompounding
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Topics: Engines, Flow (Dynamics), Pressure, Turbines
Proceedings Papers

A One-Dimensional Investigation of the Effect of an Active Control Turbocharger on Internal Combustion Engine Performance

Apostolos Pesiridis, Benjamin Dubois, Ricardo F. Martinez-Botas
Proc. ASME. GT2011, Volume 3: Controls, Diagnostics and Instrumentation; Education; Electric Power; Microturbines and Small Turbomachinery; Solar Brayton and Rankine Cycle, 961-969, June 6–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: GT2011-46599
https://doi.org/10.1115/GT2011-46599
View Paper titled, A One-Dimensional Investigation of the Effect of an Active Control Turbocharger on Internal Combustion Engine Performance
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Topics: Geometry, Internal combustion engines, Turbochargers
Proceedings Papers

Mean Line Flow Model of Steady and Pulsating Flow of a Mixed-Flow Turbine Turbocharger

Aman M. I. Bin Mamat, Ricardo F. Martinez-Botas
Proc. ASME. GT2010, Volume 7: Turbomachinery, Parts A, B, and C, 2393-2404, June 14–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: GT2010-22441
https://doi.org/10.1115/GT2010-22441
View Paper titled, Mean Line Flow Model of Steady and Pulsating Flow of a Mixed-Flow Turbine Turbocharger
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Topics: Flow (Dynamics), Modeling, Pulsatile flow, Turbines, Turbochargers
Proceedings Papers

Experimental Evaluation of the Active Control Turbocharger Prototype Under Simulated Engine Conditions

Apostolos Pesiridis, Ricardo F. Martinez-Botas
Proc. ASME. GT2010, Volume 5: Industrial and Cogeneration; Microturbines and Small Turbomachinery; Oil and Gas Applications; Wind Turbine Technology, 507-520, June 14–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: GT2010-23151
https://doi.org/10.1115/GT2010-23151
View Paper titled, Experimental Evaluation of the Active Control Turbocharger Prototype Under Simulated Engine Conditions
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Topics: Engineering prototypes, Engines, Flow (Dynamics), Geometry, Turbochargers
Journal Articles

Pulse Performance Modeling of a Twin Entry Turbocharger Turbine Under Full and Unequal Admission

Aaron W. Costall, Robert M. McDavid, Ricardo F. Martinez-Botas, Nicholas C. Baines
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2011, 133(2): 021005.
https://doi.org/10.1115/1.4000566
Published Online: October 19, 2010
View Article titled, Pulse Performance Modeling of a Twin Entry Turbocharger Turbine Under Full and Unequal Admission
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Topics: Flow (Dynamics), Modeling, Turbines, Turbochargers, Pressure, Calibration, Diesel engines, Rotors