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J. V. C. Vargas
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Proceedings Papers

A Simplified Numerical Model to Predict the Velocity Field in a Catalytic Cracking Unity in Oil Refineries

J. A. Souza, J. V. C. Vargas, O. F. von Meien, D. I. Vlassov
Proc. ASME. IMECE2001, Heat Transfer: Volume 5 — Computational, Aerospace and Environmental Heat Transfer, 183-190, November 11–16, 2001
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2001/HTD-24301
https://doi.org/10.1115/IMECE2001/HTD-24301
View Paper titled, A Simplified Numerical Model to Predict the Velocity Field in a Catalytic Cracking Unity in Oil Refineries
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Topics: Computer simulation, Cracking (Materials), Fracture (Process), Flow (Dynamics), Finite element analysis, Momentum, Pipeline risers, Risers (Casting), Simulation, Differential equations
Proceedings Papers

Thermal Simulation of an Off-Grid Zero Emissions Building

J. C. Ordonez, S. Yang, C. Ordonez, J. V. C. Vargas, T. Solano, M. Bublitz, E. Collins
Proc. ASME. ES2014, Volume 2: Economic, Environmental, and Policy Aspects of Alternate Energy; Fuels and Infrastructure, Biofuels and Energy Storage; High Performance Buildings; Solar Buildings, Including Solar Climate Control/Heating/Cooling; Sustainable Cities and Communities, Including Transportation; Thermofluid Analysis of Energy Systems, Including Exergy and Thermoeconomics, V002T06A005, June 30–July 2, 2014
Publisher: American Society of Mechanical Engineers
Paper No: ES2014-6604
https://doi.org/10.1115/ES2014-6604
View Paper titled, Thermal Simulation of an Off-Grid Zero Emissions Building
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Topics: Emissions, Simulation, Energy / power systems, Energy consumption, Sustainability, Temperature, Thermal management
Proceedings Papers

Modeling, Simulation and Optimization of a Solar System for Water Heating and Absorption Cooling

J. V. C. Vargas, J. C. Ordonez, R. Hovsapian, F. G. Dias
Proc. ASME. ES2008, ASME 2008 2nd International Conference on Energy Sustainability, Volume 2, 489-498, August 10–14, 2008
Publisher: American Society of Mechanical Engineers
Paper No: ES2008-54339
https://doi.org/10.1115/ES2008-54339
View Paper titled, Modeling, Simulation and Optimization of a Solar System for Water Heating and Absorption Cooling
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Topics: Absorption, Cooling, Heat transfer, Hot water heating, Modeling, Optimization, Simulation, Solar energy, Solar energy concentrators
Proceedings Papers

First and Second Law Thermodynamic Analysis of a Domestic Scale Trigeneration System

T. Tracy, J. C. Ordonez, J. V. C. Vargas
Proc. ASME. ES2007, ASME 2007 Energy Sustainability Conference, 759-765, July 27–30, 2007
Publisher: American Society of Mechanical Engineers
Paper No: ES2007-36184
https://doi.org/10.1115/ES2007-36184
View Paper titled, First and Second Law Thermodynamic Analysis of a Domestic Scale Trigeneration System
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Topics: Absorption, Emergencies, Exhaust systems, Fuels, Gasoline, Heat exchangers, Heat recovery, Hot water, Hot water heating, Internal combustion engines
Proceedings Papers

The Optimal Shape for a Unit PEM Fuel Cell

J. V. C. Vargas, J. C. Ordonez, A. Bejan, S. C. Amico
Proc. ASME. FUELCELL2005, 3rd International Conference on Fuel Cell Science, Engineering and Technology, 459-471, May 23–25, 2005
Publisher: American Society of Mechanical Engineers
Paper No: FUELCELL2005-74162
https://doi.org/10.1115/FUELCELL2005-74162
View Paper titled, The Optimal Shape for a Unit PEM Fuel Cell
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Topics: Proton exchange membrane fuel cells, Shapes
Proceedings Papers

Fuel Cells and Cogeneration

J. A. R. Parise, J. V. C. Vargas, R. Pitanga Marques
Proc. ASME. FUELCELL2005, 3rd International Conference on Fuel Cell Science, Engineering and Technology, 699-711, May 23–25, 2005
Publisher: American Society of Mechanical Engineers
Paper No: FUELCELL2005-74181
https://doi.org/10.1115/FUELCELL2005-74181
View Paper titled, Fuel Cells and Cogeneration
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Topics: Combined heat and power, Fuel cells, Heat, Fuels, High temperature, Thermodynamic cycles, Thermodynamic power cycles
Journal Articles

Fuel Cells and Cogeneration

J. A. R. Parise, J. V. C. Vargas, R. Pitanga Marques
Journal: Journal of Electrochemical Energy Conversion and Storage
Publisher: ASME
Article Type: Technology Review
J. Electrochem. En. Conv. Stor. August 2008, 5(3): 034002.
https://doi.org/10.1115/1.2889018
Published Online: June 9, 2008
View Article titled, Fuel Cells and Cogeneration
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Topics: Combined heat and power, Fuel cells, Heat, Cooling
Journal Articles

Erratum: “Optimally Staggered Finned Circular and Elliptic Tubes in Turbulent Forced Convection” [ Journal of Heat Transfer, 2007, 129(5), pp. 674–678 ]

R. L. S. Mainardes, R. S. Matos, J. V. C. Vargas, J. C. Ordonez
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Errata
J. Heat Mass Transfer. February 2008, 130(2): 027001.
https://doi.org/10.1115/1.2812320
Published Online: February 6, 2008
View Article titled, Erratum: “Optimally Staggered Finned Circular and Elliptic Tubes in Turbulent Forced Convection” [ Journal of Heat Transfer, 2007, 129(5), pp. 674–678 ]
Open the PDF for Erratum: “Optimally Staggered Finned Circular and Elliptic Tubes in Turbulent Forced Convection” [ Journal of Heat Transfer, 2007, 129(5), pp. 674–678 ] in another window
Topics: Forced convection, Heat transfer, Turbulence
Proceedings Papers

Thermal Model for the AC Armature Winding of a High Temperature Superconductor Airborne Motor

A. M. Morega, J. C. Ordonez, J. V. C. Vargas
Proc. ASME. IMECE2005, Heat Transfer, Part B, 141-149, November 5–11, 2005
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2005-82319
https://doi.org/10.1115/IMECE2005-82319
View Paper titled, Thermal Model for the AC Armature Winding of a High Temperature Superconductor Airborne Motor
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Topics: High temperature superconductors, Motors, Winding (process), Design, Circuits, Engines, Cooling, Copper, Energy dissipation, Iron
Journal Articles

Optimally Staggered Finned Circular and Elliptic Tubes in Turbulent Forced Convection

R. L. S. Mainardes, R. S. Matos, J. V. C. Vargas, J. C. Ordonez
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Technical Briefs
J. Heat Mass Transfer. May 2007, 129(5): 674–678.
https://doi.org/10.1115/1.2712860
Published Online: December 15, 2006
View Article titled, Optimally Staggered Finned Circular and Elliptic Tubes in Turbulent Forced Convection
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Topics: Flow (Dynamics), Forced convection, Heat transfer, Optimization, Turbulence, Fluids, Thermal conductivity
Journal Articles

The Optimal Shape of the Interface Between Two Conductive Bodies With Minimal Thermal Resistance

J. V. C. Vargas and, A. Bejan
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Technical Notes
J. Heat Mass Transfer. December 2002, 124(6): 1218–1221.
https://doi.org/10.1115/1.1497355
Published Online: December 3, 2002
View Article titled, The Optimal Shape of the Interface Between Two Conductive Bodies With Minimal Thermal Resistance
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Topics: Geometry, Shapes, Thermal conductivity, Thermal resistance, Design, Optimization, Degrees of freedom
Journal Articles

A Numerical Model to Predict the Thermal and Psychrometric Response of Electronic Packages

J. V. C. Vargas, G. Stanescu, R. Florea, M. C. Campos
Journal: Journal of Electronic Packaging
Publisher: ASME
Article Type: Technical Papers
J. Electron. Packag. September 2001, 123(3): 200–210.
https://doi.org/10.1115/1.1348337
Published Online: September 3, 1999
View Article titled, A Numerical Model to Predict the Thermal and Psychrometric Response of Electronic Packages
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Topics: Electronic packages, Heat transfer, Temperature, Computer simulation, Heat, Heat flux, Optimization
Journal Articles

Thermodynamic Optimization of a Gas Turbine Power Plant With Pressure Drop Irreversibilities

V. Radcenco, J. V. C. Vargas, A. Bejan
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Technical Papers
J. Energy Resour. Technol. September 1998, 120(3): 233–240.
https://doi.org/10.1115/1.2795041
Published Online: September 1, 1998
View Article titled, Thermodynamic Optimization of a Gas Turbine Power Plant With Pressure Drop Irreversibilities
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Topics: Gas turbines, Optimization, Power stations, Pressure drop, Flow (Dynamics), Fuels, Pressure, Compressors, Temperature, Turbines
Journal Articles

Optimization of Pulsating Heating in Pool Boiling

J. V. C. Vargas, A. Bejan
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. May 1997, 119(2): 298–304.
https://doi.org/10.1115/1.2824223
Published Online: May 1, 1997
View Article titled, Optimization of Pulsating Heating in Pool Boiling
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Topics: Heat transfer, Heating, Natural convection, Optimization, Pool boiling, Cycles, Thermal conductivity, Boiling, Bubbles, Heat flux
Journal Articles

Thermodynamic Optimization of Solar-Driven Refrigerators

J. V. C. Vargas, M. Sokolov, A. Bejan
Journal: Journal of Solar Energy Engineering
Publisher: ASME
Article Type: Research Papers
J. Sol. Energy Eng. May 1996, 118(2): 130–135.
https://doi.org/10.1115/1.2847995
Published Online: May 1, 1996
View Article titled, Thermodynamic Optimization of Solar-Driven Refrigerators
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Topics: Optimization, Solar energy, Heat exchangers, Solar collectors, Thermal conductivity, Refrigerants, Refrigeration, Temperature, Condensers (steam plant), Heat losses
Journal Articles

Optimization Principle for Natural Convection Pulsating Heating

J. V. C. Vargas, A. Bejan
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. November 1995, 117(4): 942–947.
https://doi.org/10.1115/1.2836314
Published Online: November 1, 1995
View Article titled, Optimization Principle for Natural Convection Pulsating Heating
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Topics: Heating, Natural convection, Optimization
Journal Articles

The Melting of an Ice Shell on a Heated Horizontal Cylinder

J. V. C. Vargas, A. Bejan, A. Dobrovicescu
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. August 1994, 116(3): 702–708.
https://doi.org/10.1115/1.2910925
Published Online: August 1, 1994
View Article titled, The Melting of an Ice Shell on a Heated Horizontal Cylinder
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Topics: Cylinders, Ice, Melting, Shells, Cycles, Freezing, Heat transfer, Phase change materials, Refrigeration