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Journal Articles

Performance Investigation of Supercritical CO 2 Brayton Cycles in Combination With Solar Power and Waste Heat Recovery Systems

Saad Alshahrani, Ladislav Vesely, Jayanta Kapat, C. Ahamed Saleel, Abraham Engeda
Journal: Journal of Solar Energy Engineering
Article Type: Research Papers
J. Sol. Energy Eng. December 2022, 144(6): 061004.
Paper No: SOL-21-1336
DOI: https://doi.org/10.1115/1.4054663
Published Online: June 13, 2022
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Topics: Cycles, Heat recovery, Brayton cycle, Supercritical carbon dioxide, Heat, Turbines
Proceedings Papers

The Investigation of Distorted and Enhanced Inlet Flow Influence on the Performance of a Centrifugal Compressor Stage

Yunbae Kim, Abraham Engeda, Ron Aungier, Greg Direnzi
Proc. ASME. IMECE2001, Process Industries, 15-23, November 11–16, 2001
Paper No: IMECE2001/PID-25602
DOI: https://doi.org/10.1115/IMECE2001/PID-25602
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Topics: Compressors, Flow (Dynamics), Diffusers, Impellers, Computer simulation, Design methodology, Pipes, Nozzles, Pressure, Shapes
Proceedings Papers

Numerical Analysis of the Flow Inside a Centrifugal Compressor’s Vaneless Diffuser and Volute

Hooman Rezaei, Abraham Engeda, Paul Haley
Proc. ASME. IMECE2001, Process Industries, 9-13, November 11–16, 2001
Paper No: IMECE2001/PID-25601
DOI: https://doi.org/10.1115/IMECE2001/PID-25601
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Topics: Flow (Dynamics), Numerical analysis, Vaneless diffusers, Engineering simulation, Simulation, Boundary-value problems, Diffusers, Geometry, Impellers
Proceedings Papers

Modifications of a Two Stage Centrifugal Compressor for the Volute and Vaneless Diffuser Study

Hooman Rezaei, Abraham Engeda, Paul Haley
Proc. ASME. IMECE2001, Process Industries, 37-41, November 11–16, 2001
Paper No: IMECE2001/PID-25604
DOI: https://doi.org/10.1115/IMECE2001/PID-25604
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Topics: Compressors, Vaneless diffusers, Flow (Dynamics), Test facilities, Diffusers, Engines, Fluids, Motors, Pressure
Proceedings Papers

The Influence of Inlet Flow Distortion on the Performance of a Centrifugal Compressor and the Development of Improved Inlet Using Numerical Simulations—Part I: Experimental Test Comparison for Compressor Stage Performance

Yunbae Kim, Abraham Engeda, Ron Aungier, Greg Direnzi
Proc. ASME. IMECE2000, Challenges and Goals in Industrial and Pipeline Compressors, 109-115, November 5–10, 2000
Paper No: IMECE2000-1677
DOI: https://doi.org/10.1115/IMECE2000-1677
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Topics: Compressors, Computer simulation, Flow (Dynamics), Pressure, Nozzles, Pipes, Shapes, Temperature
Proceedings Papers

A Numerical Investigation on the Volute/Diffuser Interaction due to the Axial Distortion at Impeller Exit

Fahua Gu, Abraham Engeda, Mike Cave, Jean-Luc Di Liberti
Proc. ASME. IMECE2000, Challenges and Goals in Industrial and Pipeline Compressors, 71-80, November 5–10, 2000
Paper No: IMECE2000-1673
DOI: https://doi.org/10.1115/IMECE2000-1673
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Topics: Diffusers, Impellers, Design, Flow (Dynamics), Compressors, Computational fluid dynamics, Computer simulation, Computer software, Flux (Metallurgy), Vortices
Proceedings Papers

The Influence of Inlet Flow Distortion on the Performance of a Centrifugal Compressor and the Development of Improved Inlet Using Numerical Simulations—Part II: Development of Improved Inlet for a Centrifugal Compressor Using Numerical Simulations

Yunbae Kim, Abraham Engeda, Ron Aungier, Greg Direnzi
Proc. ASME. IMECE2000, Challenges and Goals in Industrial and Pipeline Compressors, 139-146, November 5–10, 2000
Paper No: IMECE2000-1680
DOI: https://doi.org/10.1115/IMECE2000-1680
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Topics: Compressors, Computer simulation, Flow (Dynamics), Design, Pipes, Design methodology, Pipe flow, Pressure
Proceedings Papers

Analysis and Design of Centrifugal Blowers for the Pressure Ratio Range 1.2 - 1.8

Jonathon Howard, Abraham Engeda
Proc. ASME. GT2021, Volume 1: Aircraft Engine; Fans and Blowers; Marine; Wind Energy; Scholar Lecture, V001T10A010, June 7–11, 2021
Paper No: GT2021-59821
DOI: https://doi.org/10.1115/GT2021-59821
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Topics: Blades, Compressors, Design, Impellers, Pressure
Journal Articles

Challenges for Developing and Marketing a Brayton-Cycle-Based Power Genset Gas Turbine Using Supercritical CO 2 and a Compressor Design for Simple Recuperated Cycle

Javad Hosseinpour, Jonathon Howard, Jinbo Chen, Abraham Engeda
Journal: Journal of Energy Resources Technology
Article Type: Research Papers
J. Energy Resour. Technol. March 2022, 144(3): 032101.
Paper No: JERT-21-1035
DOI: https://doi.org/10.1115/1.4051305
Published Online: June 23, 2021
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Topics: Compressors, Design, Flow (Dynamics), Impellers, Supercritical carbon dioxide, Blades, Cycles
Proceedings Papers

Investigation of Rotordynamic Coefficients of Gas Labyrinth Seals Using a Steady State CFD Approach

Casey Palanca, Abraham Engeda, Mike Cave
Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT29A007, September 21–25, 2020
Paper No: GT2020-14822
DOI: https://doi.org/10.1115/GT2020-14822
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Topics: Computational fluid dynamics, Steady state, Rotors, Cavities, Clearances (Engineering), Compressors, Damping, Design, Flow (Dynamics), Gas compressors
Proceedings Papers

A Review of the Prospect and Challenges for Developing and Marketing a Brayton-Cycle Based Power Genset Gas-Turbine Using Supercritical CO 2 : Part I — The General System Challenges

Jinbo Chen, Abraham Engeda
Proc. ASME. GT2020, Volume 6: Education; Electric Power, V006T08A002, September 21–25, 2020
Paper No: GT2020-14270
DOI: https://doi.org/10.1115/GT2020-14270
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Topics: Brayton cycle, Gas turbines, Supercritical carbon dioxide, Thermodynamic power cycles, Fluids, Compression, Cycles, Design, Emissions, Compressibility
Proceedings Papers

Prospect and Challenges for Developing and Marketing a Brayton-Cycle Based Power Genset Gas-Turbine Using Supercritical CO 2 : Part II — The Turbomachinery Components Design Challenges

Abraham Engeda, Jinbo Chen
Proc. ASME. GT2020, Volume 6: Education; Electric Power, V006T08A003, September 21–25, 2020
Paper No: GT2020-14271
DOI: https://doi.org/10.1115/GT2020-14271
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Topics: Brayton cycle, Design, Gas turbines, Supercritical carbon dioxide, Turbomachinery, Fluids, Energy generation, Carbon capture and storage, Compressors, Cycles
Journal Articles

Performance Analysis of a Solar–Biogas Hybrid Micro Gas Turbine for Power Generation

Saad Alshahrani, Abraham Engeda
Journal: Journal of Solar Energy Engineering
Article Type: Research Papers
J. Sol. Energy Eng. April 2021, 143(2): 021007.
Paper No: SOL-20-1047
DOI: https://doi.org/10.1115/1.4048157
Published Online: September 4, 2020
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Topics: Biogas, Gas turbines, Micro gas turbines, Solar energy, Heat, Temperature
Journal Articles

A New Vacuum System for Steam Plant Condenser

Abraham Engeda, Ahmed Hegazy, Khaled Yousef
Journal: Journal of Thermal Science and Engineering Applications
Article Type: Research Papers
J. Thermal Sci. Eng. Appl. August 2020, 12(4): 041027.
Paper No: TSEA-20-1045
DOI: https://doi.org/10.1115/1.4046826
Published Online: May 19, 2020
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Topics: Compressors, Condensers (steam plant), Flow (Dynamics), Pipes, Pressure, Vacuum equipment, Water, Water vapor, Fluid dynamics, Pumps
Proceedings Papers

Exergy Analyses of a Solar-Biogas Hybrid Micro Gas Turbine for Power Generation

Saad Alshahrani, Abraham Engeda
Proc. ASME. IMECE2019, Volume 6: Energy, V006T06A073, November 11–14, 2019
Paper No: IMECE2019-11357
DOI: https://doi.org/10.1115/IMECE2019-11357
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Topics: Biogas, Energy generation, Exergy analysis, Micro gas turbines, Solar energy, Exergy, Temperature, Belts, Ceramics, Compressors
Proceedings Papers

Mixing of Dry Air With Water-Liquid Flowing Through an Inverted U-Tube for Power Plant Condenser Applications

Khaled Yousef, Ahmed Hegazy, Abraham Engeda
Proc. ASME. AJKFluids2019, Volume 3A: Fluid Applications and Systems, V03AT03A036, July 28–August 1, 2019
Paper No: AJKFluids2019-4901
DOI: https://doi.org/10.1115/AJKFluids2019-4901
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Topics: Computational fluid dynamics, Condensers (steam plant), Power stations, Two-phase flow, Water, Flow (Dynamics), Air entrainment, Pressure, Turbulence, Vacuum
Proceedings Papers

Effect of Moisture Content on Mixing Air With Water-Liquid Flowing Through Inverted U-Tube for Power Plant Condenser Applications

Khaled Yousef, Ahmed Hegazy, Abraham Engeda
Proc. ASME. AJKFluids2019, Volume 3A: Fluid Applications and Systems, V03AT03A047, July 28–August 1, 2019
Paper No: AJKFluids2019-4902
DOI: https://doi.org/10.1115/AJKFluids2019-4902
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Topics: Condensation, Condensers (steam plant), Power stations, Pressure, Thermal power stations, Two-phase flow, Vacuum, Water, Flow (Dynamics), Water vapor
Proceedings Papers

Redesign and Performance Analysis of Medium Flow Coefficient Centrifugal Compressor

Khaled Yousef, Abraham Engeda, Ahmed Hegazy
Proc. ASME. AJKFluids2019, Volume 3B: Fluid Applications and Systems, V03BT03A064, July 28–August 1, 2019
Paper No: AJKFluids2019-4903
DOI: https://doi.org/10.1115/AJKFluids2019-4903
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Topics: Compressors, Computational fluid dynamics, Flow (Dynamics)
Proceedings Papers

A New Vacuum System for Steam Plant Condenser

Ahmed Hegazy, Khaled Yousef, Abraham Engeda
Proc. ASME. AJKFluids2019, Volume 3A: Fluid Applications and Systems, V03AT03A035, July 28–August 1, 2019
Paper No: AJKFluids2019-4898
DOI: https://doi.org/10.1115/AJKFluids2019-4898
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Topics: Condensers (steam plant), Pipes, Thermal power stations, Vacuum equipment
Proceedings Papers

Development and Investigation of a Solar-Biogas Hybrid Brayton Cycle for 100 kW Power Generation

Saad Alshahrani, Abraham Engeda
Proc. ASME. IMECE2018, Volume 6A: Energy, V06AT08A018, November 9–15, 2018
Paper No: IMECE2018-87678
DOI: https://doi.org/10.1115/IMECE2018-87678
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Topics: Biogas, Brayton cycle, Energy generation, Solar energy, Fossil fuels, Turbines, Carbon, Concentrating solar power, Cycles, Design