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Proceedings Papers

Parametric Analysis of a Thermally Actuated Cooling System for Space Applications

K. Freudenberg, W. E. Lear, S. A. Sherif

Proc. ASME. IMECE2000, Advanced Energy Systems, 499-510, November 5–10, 2000

Paper No: IMECE2000-1345

DOI: https://doi.org/10.1115/IMECE2000-1345

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Topics: Cooling systems, Cycles, Design, Engineering prototypes, Heat, Heat pumps, Refrigeration, Thermal management, Weight (Mass)

Proceedings Papers

Semi-Closed Gas Turbine Cycles: An Ecological Solution

A. L. Laganelli, C. Rodgers, W. E. Lear, P. L. Meitner

Proc. ASME. GT2001, Volume 2: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations, V002T04A029, June 4–7, 2001

Paper No: 2001-GT-0558

DOI: https://doi.org/10.1115/2001-GT-0558

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Topics: Cycles, Gas turbines, Engines, Climate change, Emissions, Gases, Carbon dioxide, Combustion, Combustion chambers, Computational fluid dynamics

Journal Articles

Numerical Simulation of Saturated Flow Boiling Heat Transfer of Ammonia/Water Mixture in Bubble Pumps for Absorption–Diffusion Refrigerators

Soo W. Jo, S. A. Sherif, W. E. Lear

J. Thermal Sci. Eng. Appl. March 2014, 6(1): 011007.

Paper No: TSEA-13-1067

DOI: https://doi.org/10.1115/1.4025091

Published Online: October 21, 2013

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Topics: Boiling, Bubbles, Computer simulation, Flow (Dynamics), Pumps, Water, Heat transfer, Absorption, Diffusion (Physics), Simulation

Journal Articles

Critique and Improvement of a One-Dimensional Semianalytical Model of a Direct Methanol Fuel Cell

C. C. Kuo, W. E. Lear, J. H. Fletcher, O. D. Crisalle

J. Electrochem. En. Conv. Stor. October 2012, 9(5): 054501.

DOI: https://doi.org/10.1115/1.4006842

Published Online: August 17, 2012

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Topics: Boundary-value problems, Current density, Direct methanol fuel cells, Methanol, Modeling, Polarization (Electricity), Polarization (Light), Polarization (Waves), Electrical conductivity, Thermal conductivity

Proceedings Papers

Water Crossover Experiments in an Open-Cathode Direct Methanol Fuel Cell

C. C. Kuo, L. M. Neal, O. D. Crisalle, W. E. Lear, J. H. Fletcher

Proc. ASME. FUELCELL2011, ASME 2011 9th International Conference on Fuel Cell Science, Engineering and Technology, 745-755, August 7–10, 2011

Paper No: FuelCell2011-54674

DOI: https://doi.org/10.1115/FuelCell2011-54674

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Topics: Direct methanol fuel cells, Water, Water reuse, Design, Methanol, Water vapor, Carbon dioxide, Current density, Diffusion (Physics), Sensors

Proceedings Papers

Numerical Simulation of Thermofluid Characteristics of Two-Phase Slug Flow in Microchannels

A. Mehdizadeh, S. A. Sherif, W. E. Lear

Proc. ASME. IHTC14, 2010 14th International Heat Transfer Conference, Volume 6, 253-262, August 8–13, 2010

Paper No: IHTC14-23282

DOI: https://doi.org/10.1115/IHTC14-23282

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Topics: Computer simulation, Microchannels, Slug flows, Thermofluids, Flow (Dynamics), Heat transfer, Convection, Bubbles, Engineering simulation, Fluids

Journal Articles

Life Cycle Cost Analysis of a Novel Cooling and Power Gas Turbine Engine

Vaibhav Malhotra, W. E. Lear, J. R. Khan, S. A. Sherif

J. Energy Resour. Technol. December 2010, 132(4): 042401.

DOI: https://doi.org/10.1115/1.4003075

Published Online: December 17, 2010

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Topics: Compressors, Cooling, Cycles, Design, Engines, Gas turbines, Heat, High pressure (Physics), Life cycle costing, Microturbines

Proceedings Papers

CFD Modeling of Two-Phase Gas-Liquid Slug Flow Using VOF Method in Microchannels

A. Mehdizadeh, S. A. Sherif, W. E. Lear

Proc. ASME. FEDSM2009, Volume 1: Symposia, Parts A, B and C, 693-703, August 2–6, 2009

Paper No: FEDSM2009-78438

DOI: https://doi.org/10.1115/FEDSM2009-78438

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Topics: Computational fluid dynamics, Fluids, Microchannels, Modeling, Slug flows

Proceedings Papers

Development and Testing of a Rotary-Vane Two-Phase Refrigerating Expander

A. M. Mahmoud, S. A. Sherif, W. E. Lear

Proc. ASME. IMECE2009, Volume 6: Emerging Technologies: Alternative Energy Systems; Energy Systems: Analysis, Thermodynamics and Sustainability, 355-365, November 13–19, 2009

Paper No: IMECE2009-13234

DOI: https://doi.org/10.1115/IMECE2009-13234

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Topics: Testing, Design, Compression, Compressors, Displacement, Engines, Friction, Leakage, Machinery, Motors

Journal Articles

Frictional and Internal Leakage Losses in Rotary-Vane Two-Phase Refrigerating Expanders

Ahmad M. Mahmoud, S. A. Sherif, W. E. Lear

J. Energy Resour. Technol. June 2010, 132(2): 021007.

DOI: https://doi.org/10.1115/1.4001571

Published Online: June 11, 2010

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Topics: Leakage, Rotors, Flow (Dynamics), Pressure, Stators

Proceedings Papers

Numerical Simulation of Two-Phase Slug Flows in Microchannels

A. Mehdizadeh, S. A. Sherif, W. E. Lear

Proc. ASME. HT2009, Volume 3: Combustion, Fire and Reacting Flow; Heat Transfer in Multiphase Systems; Heat Transfer in Transport Phenomena in Manufacturing and Materials Processing; Heat and Mass Transfer in Biotechnology; Low Temperature Heat Transfer; Environmental Heat Transfer; Heat Transfer Education; Visualization of Heat Transfer, 245-252, July 19–23, 2009

Paper No: HT2009-88126

DOI: https://doi.org/10.1115/HT2009-88126

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Topics: Computational fluid dynamics, Computer simulation, Fluids, Microchannels, Slug flows, Surface tension

Proceedings Papers

Design of a Novel Quad-Generation Distributed Energy Demonstration Plant

D. R. Tiffany, W. E. Lear, M. A. Harris, J. F. Crittenden

Proc. ASME. GT2009, Volume 5: Microturbines and Small Turbomachinery; Oil and Gas Applications, 311-318, June 8–12, 2009

Paper No: GT2009-60312

DOI: https://doi.org/10.1115/GT2009-60312

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Topics: Design, Distributed power generation, Cycles, Fuels, Water, Combustion, Modeling, Refrigeration, Air conditioning, Collaboration

Proceedings Papers

Fischer-Tropsch Fuel Characterization via Microturbine Testing and Fundamental Combustion Measurements

A. Srinivasan, B. Ellis, J. F. Crittenden, W. E. Lear, Brandon Rotavera, Eric L. Petersen

Proc. ASME. GT2008, Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Manufacturing, Materials and Metallurgy; Microturbines and Small Turbomachinery, 867-876, June 9–13, 2008

Paper No: GT2008-51447

DOI: https://doi.org/10.1115/GT2008-51447

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Topics: Combustion, Fuels, Microturbines, Testing, Shock tubes, Emissions, Soot, Jet fuels, Sprays, Synthetic fuels

Proceedings Papers

Parametric Control of a Two-Phase Thermal Management System for Space Applications

M. J. Brooks, L. C. Nortje, W. E. Lear, S. A. Sherif

Proc. ASME. HT2008, Heat Transfer: Volume 2, 363-370, August 10–14, 2008

Paper No: HT2008-56147

DOI: https://doi.org/10.1115/HT2008-56147

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Topics: Algorithms, Boilers, Electrical components, Flow control valves, Fluids, Heat, Pressure, Space vehicles, Thermal management, Waste heat

Proceedings Papers

An Analytical and Experimental Study of Rotary-Vane Turbomachinery: Single-Phase Working Fluids

A. Mehdizadeh, A. M. Mahmoud, S. A. Sherif, W. E. Lear

Proc. ASME. FEDSM2008, Volume 2: Fora, 235-242, August 10–14, 2008

Paper No: FEDSM2008-55260

DOI: https://doi.org/10.1115/FEDSM2008-55260

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Topics: Fluids, Turbomachinery, Machinery, Design, Flow (Dynamics), Motors, Compression, Displacement, Exhaust systems, Refrigeration

Proceedings Papers

Frictional and Internal Leakage Losses in Rotary-Vane Two-Phase Refrigerating Expanders

A. M. Mahmoud, S. A. Sherif, W. E. Lear

Proc. ASME. ES2008, ASME 2008 2nd International Conference on Energy Sustainability, Volume 1, 669-682, August 10–14, 2008

Paper No: ES2008-54274

DOI: https://doi.org/10.1115/ES2008-54274

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Topics: Leakage, Compression, Refrigeration, Vapors, Enthalpy, Fluids, Friction, Leakage flows, Modeling, Refrigerants

Proceedings Papers

A Flexible Fuel Semi-Closed Combined Cycle for Power, Refrigeration and Water

W. E. Lear, J. F. Crittenden, J. R. Khan, S. A. Sherif

Proc. ASME. GT2007, Volume 3: Turbo Expo 2007, 301-309, May 14–17, 2007

Paper No: GT2007-27664

DOI: https://doi.org/10.1115/GT2007-27664

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Topics: Combined cycles, Fuels, Refrigeration, Water, Distributed power generation, Modeling, Absorption, Condensation, Condensed matter, Design

Proceedings Papers

Experimental Study of a Constant-Area Ejector With Two-Phase Fluids

J. A. Bray, W. E. Lear, S. A. Sherif

Proc. ASME. FEDSM2003, Volume 2: Symposia, Parts A, B, and C, 773-779, July 6–10, 2003

Paper No: FEDSM2003-45703

DOI: https://doi.org/10.1115/FEDSM2003-45703

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Topics: Ejectors, Fluids, Thermal management, Conceptual design, Databases, Design, Interchangeable mechanisms, Testing, Thermodynamic cycles

Proceedings Papers

Performance of a Novel Combined Cooling and Power Gas Turbine With Water Harvesting

J. R. Khan, W. E. Lear, S. A. Sherif

Proc. ASME. GT2004, Volume 7: Turbo Expo 2004, 211-223, June 14–17, 2004

Paper No: GT2004-53013

DOI: https://doi.org/10.1115/GT2004-53013

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Topics: Absorption, Cooling, Gas turbines, High pressure (Physics), Refrigeration, Vapors, Water, Water harvesting

Proceedings Papers

Second Law Analysis of a Novel Combined Cooling and Power Cycle With Water Harvesting

J. R. Khan, W. E. Lear, S. A. Sherif, John F. Crittenden

Proc. ASME. GT2005, Volume 5: Turbo Expo 2005, 261-270, June 6–9, 2005

Paper No: GT2005-68628

DOI: https://doi.org/10.1115/GT2005-68628

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Topics: Absorption, Cooling, Gas turbines, High pressure (Physics), Refrigeration, Thermodynamic power cycles, Vapors, Water, Water harvesting, Cycles

Journal citation

NARROW

Parametric Analysis of a Thermally Actuated Cooling System for Space Applications

Semi-Closed Gas Turbine Cycles: An Ecological Solution

Numerical Simulation of Saturated Flow Boiling Heat Transfer of Ammonia/Water Mixture in Bubble Pumps for Absorption–Diffusion Refrigerators

Critique and Improvement of a One-Dimensional Semianalytical Model of a Direct Methanol Fuel Cell

Water Crossover Experiments in an Open-Cathode Direct Methanol Fuel Cell

Numerical Simulation of Thermofluid Characteristics of Two-Phase Slug Flow in Microchannels

Life Cycle Cost Analysis of a Novel Cooling and Power Gas Turbine Engine

CFD Modeling of Two-Phase Gas-Liquid Slug Flow Using VOF Method in Microchannels

Development and Testing of a Rotary-Vane Two-Phase Refrigerating Expander

Frictional and Internal Leakage Losses in Rotary-Vane Two-Phase Refrigerating Expanders

Numerical Simulation of Two-Phase Slug Flows in Microchannels

Design of a Novel Quad-Generation Distributed Energy Demonstration Plant

Fischer-Tropsch Fuel Characterization via Microturbine Testing and Fundamental Combustion Measurements

Parametric Control of a Two-Phase Thermal Management System for Space Applications

An Analytical and Experimental Study of Rotary-Vane Turbomachinery: Single-Phase Working Fluids

Frictional and Internal Leakage Losses in Rotary-Vane Two-Phase Refrigerating Expanders

A Flexible Fuel Semi-Closed Combined Cycle for Power, Refrigeration and Water

Experimental Study of a Constant-Area Ejector With Two-Phase Fluids

Performance of a Novel Combined Cooling and Power Gas Turbine With Water Harvesting

Second Law Analysis of a Novel Combined Cooling and Power Cycle With Water Harvesting

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