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Timothy S. Fisher
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Journal Articles

Modeling of Supercritical CO 2 Shell-and-Tube Heat Exchangers Under Extreme Conditions. Part I: Correlation Development

Akshay Bharadwaj Krishna, Kaiyuan Jin, Portonovo S. Ayyaswamy, Ivan Catton, Timothy S. Fisher
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. May 2022, 144(5): 051902.
Paper No: HT-21-1501
https://doi.org/10.1115/1.4053510
Published Online: March 2, 2022
View Article titled, Modeling of Supercritical CO 2 Shell-and-Tube Heat Exchangers Under Extreme Conditions. Part I: Correlation Development
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Topics: Computational fluid dynamics, Disks, Flow (Dynamics), Fluids, Friction, Heat exchangers, Shells, Supercritical carbon dioxide, Modeling, Heat transfer
Journal Articles

Modeling of Supercritical CO 2 Shell-and-Tube Heat Exchangers Under Extreme Conditions: Part II: Heat Exchanger Model

Akshay Bharadwaj Krishna, Kaiyuan Jin, Portonovo S. Ayyaswamy, Ivan Catton, Timothy S. Fisher
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. May 2022, 144(5): 051903.
Paper No: HT-21-1502
https://doi.org/10.1115/1.4053511
Published Online: March 2, 2022
View Article titled, Modeling of Supercritical CO 2 Shell-and-Tube Heat Exchangers Under Extreme Conditions: Part II: Heat Exchanger Model
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Topics: Computer simulation, Flow (Dynamics), Fluids, Heat exchangers, Shells, Supercritical carbon dioxide, Temperature, Internal flow, Computational fluid dynamics, Design
Journal Articles

High-Temperature Thermal Diffusivity Measurements Using a Modified Ångström's Method With Transient Infrared Thermography

Yuan Hu, Mostafa Abuseada, Abdalla Alghfeli, Saurin Holdheim, Timothy S. Fisher
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. February 2022, 144(2): 023502.
Paper No: HT-21-1346
https://doi.org/10.1115/1.4053108
Published Online: December 20, 2021
View Article titled, High-Temperature Thermal Diffusivity Measurements Using a Modified Ångström's Method With Transient Infrared Thermography
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Topics: Emissivity, Graphite, High temperature, Light sources, Temperature, Temperature profiles, Thermal diffusivity, Thermography, Uncertainty quantification, Solar energy
Includes: Supplementary data
Journal Articles

A Heat Transfer Model for Graphene Deposition on Ni and Cu Foils in a Roll-to-Roll Plasma Chemical Vapor Deposition System

Majed A. Alrefae, Timothy S. Fisher
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. October 2021, 143(10): 103401.
Paper No: HT-20-1774
https://doi.org/10.1115/1.4051505
Published Online: September 8, 2021
View Article titled, A Heat Transfer Model for Graphene Deposition on Ni and Cu Foils in a Roll-to-Roll Plasma Chemical Vapor Deposition System
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Topics: Cooling, Copper foil, Graphene, Heat transfer, Plasmas (Ionized gases), Temperature, Temperature distribution, Chemical vapor deposition, Carbon
Includes: Supplementary data
Journal Articles

Accurate Thermal Diffusivity Measurements Using a Modified Ångström's Method With Bayesian Statistics

Yuan Hu, Timothy S. Fisher
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. July 2020, 142(7): 071401.
Paper No: HT-19-1592
https://doi.org/10.1115/1.4047145
Published Online: May 29, 2020
View Article titled, Accurate Thermal Diffusivity Measurements Using a Modified Ångström's Method With Bayesian Statistics
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Topics: Temperature, Temperature measurement, Thermal diffusivity, Copper, Heating, Uncertainty, Convection, Forced convection, Temperature profiles
Includes: Supplementary data
Journal Articles

A Letter to the Members of the Heat Transfer Community

Vijay K. Dhir, Portonovo S. Ayyaswamy, Ashley Emery, Amir Faghri, Timothy S. Fisher, Van P. Carey
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Editorial
J. Heat Mass Transfer. December 2018, 140(12): 120201.
Paper No: HT-18-1643
https://doi.org/10.1115/1.4041742
Published Online: November 5, 2018
View Article titled, A Letter to the Members of the Heat Transfer Community
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Topics: Heat transfer
Journal Articles

Mechanical Behavior of Carbon Nanotube Forests Grown With Plasma Enhanced Chemical Vapor Deposition: Pristine and Conformally Coated

Parisa Pour Shahid Saeed Abadi, Matthew R. Maschmann, Stephen L. Hodson, Timothy S. Fisher, Jeffery W. Baur, Samuel Graham, Baratunde A. Cola
Journal: Journal of Engineering Materials and Technology
Publisher: ASME
Article Type: Technical Briefs
J. Eng. Mater. Technol. July 2017, 139(3): 034502.
Paper No: MATS-15-1149
https://doi.org/10.1115/1.4035622
Published Online: March 23, 2017
View Article titled, Mechanical Behavior of Carbon Nanotube Forests Grown With Plasma Enhanced Chemical Vapor Deposition: Pristine and Conformally Coated
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Topics: Carbon nanotubes, Mechanical behavior, Plasma-enhanced chemical vapor deposition, Deformation, Stiffness
Journal Articles

Design and Validation of a High-Temperature Thermal Interface Resistance Measurement System

Menglong Hao, Kimberly R. Saviers, Timothy S. Fisher
Journal: Journal of Thermal Science and Engineering Applications
Publisher: ASME
Article Type: Research-Article
J. Thermal Sci. Eng. Appl. September 2016, 8(3): 031008.
Paper No: TSEA-15-1315
https://doi.org/10.1115/1.4033011
Published Online: April 19, 2016
View Article titled, Design and Validation of a High-Temperature Thermal Interface Resistance Measurement System
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Topics: Design, High temperature, Temperature, Radiation (Physics), Measurement systems, Graphite, Surface roughness
Proceedings Papers

A Model Predictive Framework for Thermal Management of Aircraft

Timothy O. Deppen, Joel E. Hey, Andrew G. Alleyne, Timothy S. Fisher
Proc. ASME. DSCC2015, Volume 1: Adaptive and Intelligent Systems Control; Advances in Control Design Methods; Advances in Non-Linear and Optimal Control; Advances in Robotics; Advances in Wind Energy Systems; Aerospace Applications; Aerospace Power Optimization; Assistive Robotics; Automotive 2: Hybrid Electric Vehicles; Automotive 3: Internal Combustion Engines; Automotive Engine Control; Battery Management; Bio Engineering Applications; Biomed and Neural Systems; Connected Vehicles; Control of Robotic Systems, V001T08A001, October 28–30, 2015
Publisher: American Society of Mechanical Engineers
Paper No: DSCC2015-9771
https://doi.org/10.1115/DSCC2015-9771
View Paper titled, A Model Predictive Framework for Thermal Management of Aircraft
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Topics: Aircraft, Thermal management, Stress, Control equipment, Temperature, Cooling, Design, Electrical components, Electricity (Physics), Energy dissipation
Journal Articles

Combined Microstructure and Heat Transfer Modeling of Carbon Nanotube Thermal Interface Materials

Sridhar Sadasivam, Stephen L. Hodson, Matthew R. Maschmann, Timothy S. Fisher
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. April 2016, 138(4): 042402.
Paper No: HT-15-1292
https://doi.org/10.1115/1.4032174
Published Online: January 12, 2016
View Article titled, Combined Microstructure and Heat Transfer Modeling of Carbon Nanotube Thermal Interface Materials
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Topics: Carbon nanotubes, Simulation, Modeling
Journal Articles

H 2 Mole Fraction Measurements in a Microwave Plasma Using Coherent Anti-Stokes Raman Scattering Spectroscopy

Alfredo D. Tuesta, Aizaz Bhuiyan, Robert P. Lucht, Timothy S. Fisher
Journal: Journal of Micro and Nano-Manufacturing
Publisher: ASME
Article Type: Research-Article
J. Micro Nano-Manuf. March 2016, 4(1): 011005.
Paper No: JMNM-15-1053
https://doi.org/10.1115/1.4031916
Published Online: December 15, 2015
View Article titled, H 2 Mole Fraction Measurements in a Microwave Plasma Using Coherent Anti-Stokes Raman Scattering Spectroscopy
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Topics: Plasmas (Ionized gases), Temperature, Spectra (Spectroscopy), Microwaves, Methane, Pressure, Automobiles
Proceedings Papers

Enhancement and Optimization of Planar Impingement Heat Transfer for Thermoelectric Power Generation

Kazuaki Yazawa, Stephen D. Heister, Timothy S. Fisher
Proc. ASME. InterPACK2015, Volume 1: Thermal Management, V001T09A081, July 6–9, 2015
Publisher: American Society of Mechanical Engineers
Paper No: IPACK2015-48692
https://doi.org/10.1115/IPACK2015-48692
View Paper titled, Enhancement and Optimization of Planar Impingement Heat Transfer for Thermoelectric Power Generation
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Topics: Energy generation, Heat transfer, Optimization, Flow (Dynamics), Fluids, Design, Temperature, Heat exchangers, Generators, Orifices
Journal Articles

Laser Diagnostics of Plasma in Synthesis of Graphene-Based Materials

Alfredo D. Tuesta, Aizaz Bhuiyan, Robert P. Lucht, Timothy S. Fisher
Journal: Journal of Micro and Nano-Manufacturing
Publisher: ASME
Article Type: Research-Article
J. Micro Nano-Manuf. September 2014, 2(3): 031002.
Paper No: JMNM-14-1010
https://doi.org/10.1115/1.4027547
Published Online: July 8, 2014
View Article titled, Laser Diagnostics of Plasma in Synthesis of Graphene-Based Materials
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Topics: Plasmas (Ionized gases), Pressure, Temperature, Methane, Microwaves, Graphene, Automobiles
Proceedings Papers

Laser Diagnostics of Plasma in Synthesis of Graphene-Based Materials

Alfredo D. Tuesta, Aizaz Bhuiyan, Robert P. Lucht, Timothy S. Fisher
Proc. ASME. IMECE2013, Volume 2B: Advanced Manufacturing, V02BT02A032, November 15–21, 2013
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2013-63823
https://doi.org/10.1115/IMECE2013-63823
View Paper titled, Laser Diagnostics of Plasma in Synthesis of Graphene-Based Materials
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Topics: Graphene, Lasers, Plasmas (Ionized gases), Temperature, Plasma generators, Carbon, Pressure, Carbon nanotubes, Chemical vapor deposition, Elastic scattering
Proceedings Papers

Effect of Gamma-Ray Irradiation on the Thermal Contact Conductance of Carbon Nanotube Thermal Interface Materials

Stephen L. Hodson, Robert A. Sayer, Timothy P. Koehler, Justin R. Serrano, Scott M. Dalton, Timothy S. Fisher
Proc. ASME. IMECE2013, Volume 8B: Heat Transfer and Thermal Engineering, V08BT09A018, November 15–21, 2013
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2013-62773
https://doi.org/10.1115/IMECE2013-62773
View Paper titled, Effect of Gamma-Ray Irradiation on the Thermal Contact Conductance of Carbon Nanotube Thermal Interface Materials
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Topics: Carbon nanotubes, Contact resistance, Gamma rays, Irradiation (Radiation exposure), Temperature, Density, Design, Electronic systems, Flow (Dynamics), Heat
Proceedings Papers

Flash Boiling and Desorption From a Macroporous Carbon-Boron-Nitrogen Foam

Jeffrey D. Engerer, Galen R. Jackson, Rajib Paul, Timothy S. Fisher
Proc. ASME. IMECE2013, Volume 6B: Energy, V06BT07A071, November 15–21, 2013
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2013-64884
https://doi.org/10.1115/IMECE2013-64884
View Paper titled, Flash Boiling and Desorption From a Macroporous Carbon-Boron-Nitrogen Foam
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Topics: Boiling, Boron, Carbon, Desorption, Nitrogen, Cooling, Fluids, Temperature, Heating, Thermal conductivity
Journal Articles

First Principles and Finite Element Predictions of Radiative Properties of Nanostructure Arrays: Single-Walled Carbon Nanotube Arrays

Aaron Sisto, Xiulin Ruan, Timothy S. Fisher
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. June 2014, 136(6): 062702.
Paper No: HT-12-1305
https://doi.org/10.1115/1.4026552
Published Online: March 10, 2014
View Article titled, First Principles and Finite Element Predictions of Radiative Properties of Nanostructure Arrays: Single-Walled Carbon Nanotube Arrays
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Topics: Carbon nanotubes, Electrodynamics, Finite element analysis, Polarization (Light), Reflectance, Simulation, Single-walled carbon nanotubes, Absorption, Tensors
Proceedings Papers

Microstructure-Dependent Heat Transfer Modeling of Carbon Nanotube Arrays for Thermal Interface Applications

Sridhar Sadasivam, Stephen L. Hodson, Timothy S. Fisher
Proc. ASME. HT2013, Volume 1: Heat Transfer in Energy Systems; Thermophysical Properties; Theory and Fundamental Research in Heat Transfer, V001T03A045, July 14–19, 2013
Publisher: American Society of Mechanical Engineers
Paper No: HT2013-17337
https://doi.org/10.1115/HT2013-17337
View Paper titled, Microstructure-Dependent Heat Transfer Modeling of Carbon Nanotube Arrays for Thermal Interface Applications
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Topics: Carbon nanotubes, Heat transfer, Modeling, Simulation, Stress, Thermomechanics, Buckling, Chaos, Electrical conductivity, Network models
Proceedings Papers

Chemically B-N Modified Activated Carbon and its Thermal Stability and Desorption Enthalpy With Methanol

Rajib Paul, Tyler Voskuilen, Dmitry Zemlyanov, Timothée L. Pourpoint, Timothy S. Fisher
Proc. ASME. IMECE2012, Volume 9: Micro- and Nano-Systems Engineering and Packaging, Parts A and B, 1155-1160, November 9–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2012-89531
https://doi.org/10.1115/IMECE2012-89531
View Paper titled, Chemically B-N Modified Activated Carbon and its Thermal Stability and Desorption Enthalpy With Methanol
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Topics: Activated carbon, Desorption, Enthalpy, Methanol, Thermal stability, Bonding, Boron, Cycles, Differential scanning calorimetry, Heating
Journal Articles

Conduction in Jammed Systems of Tetrahedra

Kyle C. Smith, Timothy S. Fisher
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. August 2013, 135(8): 081301.
Paper No: HT-12-1285
https://doi.org/10.1115/1.4024276
Published Online: June 27, 2013
View Article titled, Conduction in Jammed Systems of Tetrahedra
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Topics: Density, Electrical conductivity, Heat conduction, Particulate matter, Thermal conductivity, Temperature, Shapes, Packings (Cushioning)