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Journal Articles

Analysis of Turbomachinery Losses in sCO 2 Brayton Power Blocks

Lakshminarayanan Seshadri, Pramod Kumar, Abdul Nassar, Gaurav Giri
Journal: Journal of Energy Resources Technology
Article Type: Research Papers
J. Energy Resour. Technol. November 2022, 144(11): 112101.
Paper No: JERT-21-2020
DOI: https://doi.org/10.1115/1.4054133
Published Online: April 11, 2022
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Topics: Cycles, Turbomachinery, Pressure, Compressors, Turbines
Includes: Supplementary data
Journal Articles

Performance Enhancement of Tubular Solar Still With Various Rotating Wicked Materials—An Experimental Approach

A. Saravanan, M. Murugan, M. Sreenivasa Reddy, Pramod Kumar, P. V. Elumalai
Journal: Journal of Thermal Science and Engineering Applications
Article Type: Research Papers
J. Thermal Sci. Eng. Appl. October 2022, 14(10): 101004.
Paper No: TSEA-21-1610
DOI: https://doi.org/10.1115/1.4054071
Published Online: April 7, 2022
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Topics: Cotton fabrics, Solar stills, Water, Textiles, Jute fiber, Solar energy, Polyester fabrics, Evaporation
Proceedings Papers

Coupled Thermal-Structural Analysis of Generator For sCO 2 Turbomachinery

Ramesha Guntanur, Ashutosh Patel, Vijay Biradar, Pramod Kumar
Proc. ASME. GTINDIA2021, ASME 2021 Gas Turbine India Conference, V001T10A011, December 2–3, 2021
Paper No: GTINDIA2021-76451
DOI: https://doi.org/10.1115/GTINDIA2021-76451
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Topics: Generators, Pressure, Stress, Thermal analysis, Thermal stresses, Turbomachinery
Proceedings Papers

Preliminary Aerodynamic Design of a S-CO2 Axial Turbine

R. Senthil Kumaran, Dilipkumar B. Alone, Abdul Nassar, Pramod Kumar
Proc. ASME. GTINDIA2021, ASME 2021 Gas Turbine India Conference, V001T12A009, December 2–3, 2021
Paper No: GTINDIA2021-76454
DOI: https://doi.org/10.1115/GTINDIA2021-76454
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Topics: Brayton cycle, Carbon, Design, Flow (Dynamics), Supercritical carbon dioxide, Turbines
Proceedings Papers

Vaneless Diffuser Performance in a Super-Critical Carbon Dioxide Centrifugal Compressor With Real Gas Effects

Lakshminarayanan Seshadri, Pramod Kumar
Proc. ASME. GTINDIA2021, ASME 2021 Gas Turbine India Conference, V001T04A007, December 2–3, 2021
Paper No: GTINDIA2021-76030
DOI: https://doi.org/10.1115/GTINDIA2021-76030
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Topics: Carbon dioxide, Compressors, Supercritical carbon dioxide, Vaneless diffusers
Proceedings Papers

Harmonic Analysis of the High Speed Direct Coupled SCO2 Turbo-Generator

Ashutosh Patel, Vijay Biradar, Pramod Kumar
Proc. ASME. GTINDIA2021, ASME 2021 Gas Turbine India Conference, V001T10A010, December 2–3, 2021
Paper No: GTINDIA2021-76448
DOI: https://doi.org/10.1115/GTINDIA2021-76448
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Topics: Finite element analysis, Rotordynamics, Turbogenerators, Bearings, Geometry, Computation, Damping, Deflection, Dimensions, Inertia (Mechanics)
Proceedings Papers

Theoretical Estimation of Minimum and Maximum Allowable Rotational Speed of Supercritical CO 2 Inward Flow Radial Turbine

Syed J. Hoque, Pramod Kumar
Proc. ASME. GTINDIA2021, ASME 2021 Gas Turbine India Conference, V001T12A007, December 2–3, 2021
Paper No: GTINDIA2021-76379
DOI: https://doi.org/10.1115/GTINDIA2021-76379
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Topics: Flow (Dynamics), Supercritical carbon dioxide, Turbines, Blades, Fluids, Mach number, Boundary-value problems, Computer software, Density, Design
Proceedings Papers

Investigation on Thermal Stability of Sintered Magnesia in Sodium for Core Catcher Application in SFRs

Prabhat Kumar Shukla, E. Hemanth Rao, Muthuganesh M., E. Vetrivendan, S. R. Polaki, Sanjay Kumar Das, S. Ningshen, Pramod Kumar Chaurasia, D. Ponraju, S. Athmalingam, B. Venkatraman
Proc. ASME. ICONE28, Volume 3: Computational Fluid Dynamics (CFD); Verification and Validation; Advanced Methods of Manufacturing (AMM) for Nuclear Reactors and Components; Decontamination, Decommissioning, and Radioactive Waste Management; Beyond Design Basis and Nuclear Safety; Risk Informed Management and Regulation, V003T12A034, August 4–6, 2021
Paper No: ICONE28-65785
DOI: https://doi.org/10.1115/ICONE28-65785
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Topics: Accidents, Fast neutron reactors, Sodium, Sodium fast reactors, Thermal stability
Proceedings Papers

Profile Loss Investigations With a S-CO2 Axial Turbine Aerofoil

R. Senthil Kumaran, Dilipkumar B. Alone, Pramod Kumar
Proc. ASME. GT2020, Volume 11: Structures and Dynamics: Structural Mechanics, Vibration, and Damping; Supercritical CO2, V011T31A015, September 21–25, 2020
Paper No: GT2020-15651
DOI: https://doi.org/10.1115/GT2020-15651
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Topics: Airfoils, Brayton cycle, Cascades (Fluid dynamics), Deflection, Flow (Dynamics), Supercritical carbon dioxide, Turbines
Journal Articles

Enhancing Productivity of V-Trough Solar Water Heater Incorporated Flat Plate Wick-Type Solar Water Distillation System

M. Murugan, A. Saravanan, G. Murali, Pramod Kumar, V. Siva Nagi Reddy
Journal: Journal of Heat Transfer
Article Type: Research-Article
J. Heat Transfer. March 2021, 143(3): 032001.
Paper No: HT-20-1408
DOI: https://doi.org/10.1115/1.4048947
Published Online: December 21, 2020
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Topics: Flat plates, Solar energy, Water
Proceedings Papers

Supercritical Carbon Dioxide Turbomachinery Options for Kilowatt to Gigawatt Level Power Generation

Lakshminarayanan Seshadri, Harini Nivetha Raja, Pramod Kumar, Abdul Nassar, Gaurav Giri, Leonid Moroz
Proc. ASME. GTINDIA2019, Volume 2: Combustion, Fuels, and Emissions; Renewable Energy: Solar and Wind; Inlets and Exhausts; Emerging Technologies: Hybrid Electric Propulsion and Alternate Power Generation; GT Operation and Maintenance; Materials and Manufacturing (Including Coatings, Composites, CMCs, Additive Manufacturing); Analytics and Digital Solutions for Gas Turbines/Rotating Machinery, V002T08A007, December 5–6, 2019
Paper No: GTINDIA2019-2472
DOI: https://doi.org/10.1115/GTINDIA2019-2472
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Topics: Compressors, Design, Energy generation, Supercritical carbon dioxide, Turbines, Turbomachinery
Proceedings Papers

Analysis of Aerostatic Thrust Bearing for S-CO 2 Turbomachinery

Ashutosh Patel, Aanand K. Balasubramanian, Vijay Biradar, Shreyas Srivatsa, Pramod Kumar, Venkata R. Sonti
Proc. ASME. GTINDIA2019, Volume 1: Compressors, Fans, and Pumps; Turbines; Heat Transfer; Structures and Dynamics, V001T05A015, December 5–6, 2019
Paper No: GTINDIA2019-2643
DOI: https://doi.org/10.1115/GTINDIA2019-2643
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Topics: Bearings, Stress, Supercritical carbon dioxide, Thrust, Thrust bearings, Turbomachinery
Proceedings Papers

Brayton Cycle Supercritical CO 2 Power Block for Industrial Waste Heat Recovery

Sharath Sathish, Pramod Kumar, Logesh Nagarathinam, Lokesh Swami, Adi Narayana Namburi, Venkata Subbarao Bandarupalli, Pramod Chandra Gopi
Proc. ASME. GTINDIA2019, Volume 2: Combustion, Fuels, and Emissions; Renewable Energy: Solar and Wind; Inlets and Exhausts; Emerging Technologies: Hybrid Electric Propulsion and Alternate Power Generation; GT Operation and Maintenance; Materials and Manufacturing (Including Coatings, Composites, CMCs, Additive Manufacturing); Analytics and Digital Solutions for Gas Turbines/Rotating Machinery, V002T08A001, December 5–6, 2019
Paper No: GTINDIA2019-2347
DOI: https://doi.org/10.1115/GTINDIA2019-2347
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Topics: Brayton cycle, Heat recovery, Industrial wastes, Supercritical carbon dioxide, Cycles, Design, Steam, Compressors, Iron, Turbines
Proceedings Papers

Modelling of Gas Cooler for S-CO 2 Brayton Power Cycle

Vivek Pandey, Lakshminarayanan Seshadri, Jayesh Gupta, Ravishankar Mariayyah, Nagavally Lingappa Santhosh, Pramod Kumar
Proc. ASME. GTINDIA2019, Volume 2: Combustion, Fuels, and Emissions; Renewable Energy: Solar and Wind; Inlets and Exhausts; Emerging Technologies: Hybrid Electric Propulsion and Alternate Power Generation; GT Operation and Maintenance; Materials and Manufacturing (Including Coatings, Composites, CMCs, Additive Manufacturing); Analytics and Digital Solutions for Gas Turbines/Rotating Machinery, V002T08A010, December 5–6, 2019
Paper No: GTINDIA2019-2612
DOI: https://doi.org/10.1115/GTINDIA2019-2612
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Topics: Flow (Dynamics), Mechanical admittance, Modeling, Supercritical carbon dioxide, Thermal resistance, Thermodynamic power cycles
Proceedings Papers

Design of 20 kW Turbomachinery for Closed Loop Supercritical Carbon Dioxide Brayton Test Loop Facility

Lakshminarayanan Seshadri, Sharath Sathish, Pramod Kumar, Gaurav Giri, Abdul Nassar, Leonid Moroz, Raghavendra Setty, Pramod Chandra Gopi, Adi Narayana Namburi
Proc. ASME. GT2019, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A016, June 17–21, 2019
Paper No: GT2019-90876
DOI: https://doi.org/10.1115/GT2019-90876
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Topics: Design, Supercritical carbon dioxide, Turbomachinery, Compressors, Turbines, Generators, Blades, Boundary-value problems, Brayton cycle, Collaboration
Proceedings Papers

Simple Recuperated s-CO2 Cycle Revisited: Optimization of Operating Parameters for Maximum Cycle Efficiency

Anchit Dutta, Adhip Gupta, Sharath Sathish, Aman Bandooni, Pramod Kumar
Proc. ASME. GT2019, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A002, June 17–21, 2019
Paper No: GT2019-90315
DOI: https://doi.org/10.1115/GT2019-90315
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Topics: Cycles, Optimization, Supercritical carbon dioxide, Pressure, Compressors, Performance, Turbines, Brayton cycle, Design, Experimental design
Proceedings Papers

Novel Approaches for sCO 2 Axial Turbine Design

Sharath Sathish, Pramod Kumar, Adi Narayana Namburi, Lokesh Swami, Carsten Fuetterer, Pramod Chandra Gopi
Proc. ASME. GT2019, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A011, June 17–21, 2019
Paper No: GT2019-90606
DOI: https://doi.org/10.1115/GT2019-90606
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Topics: Design, Turbines, Blades, Steam turbines, Stress, Geometry, Optimization, B-splines, Cascades (Fluid dynamics), Chords (Trusses)
Journal Articles

Electromechanical Instability of Dielectric Elastomer Actuators With Active and Inactive Electric Regions

Atul Kumar Sharma, Pramod Kumar, A. Singh, D. M. Joglekar, M. M. Joglekar
Journal: Journal of Applied Mechanics
Article Type: Research-Article
J. Appl. Mech. June 2019, 86(6): 061008.
Paper No: JAM-19-1030
DOI: https://doi.org/10.1115/1.4042996
Published Online: March 19, 2019
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Topics: Actuators, Breakdown (Electricity), Deformation, Elastomers, Finite element analysis, Stress, Membranes
Journal Articles

A Modulated Voltage Waveform for Enhancing the Travel Range of Dielectric Elastomer Actuators

Nitesh Arora, Pramod Kumar, M. M. Joglekar
Journal: Journal of Applied Mechanics
Article Type: Research-Article
J. Appl. Mech. November 2018, 85(11): 111009.
Paper No: JAM-18-1311
DOI: https://doi.org/10.1115/1.4041039
Published Online: August 24, 2018
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Topics: Actuators, Elastomers, Cycles, Oscillations, Signals, Limit cycles, Energy dissipation
Proceedings Papers

Optimization of Operating Parameters of a Recompression sCO 2 Cycle for Maximum Efficiency

Sharath Sathish, Pramod Kumar, Adi Narayana Namburi, Pramod Chandra Gopi, Matthew D. Carlson, Clifford K. Ho
Proc. ASME. GT2017, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A022, June 26–30, 2017
Paper No: GT2017-64625
DOI: https://doi.org/10.1115/GT2017-64625
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Topics: Cycles, Optimization, Temperature, Design, Power stations, Pressure, Brayton cycle, Heat exchangers, Low temperature, Power density