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Journal Articles

A Compact Modeling Approach to Enhance Collaborative Design of Thermal-Fluid Systems

Jason Stafford, David Newport, Ronan Grimes
Journal: Journal of Electronic Packaging
Publisher: ASME
Article Type: Research-Article
J. Electron. Packag. March 2014, 136(1): 011004.
Paper No: EP-13-1026
https://doi.org/10.1115/1.4026051
Published Online: December 16, 2013
View Article titled, A Compact Modeling Approach to Enhance Collaborative Design of Thermal-Fluid Systems
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Topics: Boundary-value problems, Design, Modeling, Thermofluids, Computational fluid dynamics, Temperature
Journal Articles

Finless Heat Sinks, High Performance and Low Cost for Low Profile Cooling Applications

Ed Walsh, Ronan Grimes, Patrick Walsh, Jason Stafford
Journal: Journal of Thermal Science and Engineering Applications
Publisher: ASME
Article Type: Research-Article
J. Thermal Sci. Eng. Appl. September 2013, 5(3): 031001.
Paper No: TSEA-11-1181
https://doi.org/10.1115/1.4023267
Published Online: June 24, 2013
View Article titled, Finless Heat Sinks, High Performance and Low Cost for Low Profile Cooling Applications
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Topics: Cooling, Heat sinks, Heat transfer coefficients, Design, Flow (Dynamics), Temperature, Heat transfer, Thermal management
Proceedings Papers

Influence of the Flow From an Axial Fan on the Performance of a Heat Exchanger

James Moore, Ronan Grimes, Ed Walsh
Proc. ASME. IMECE2011, Volume 10: Heat and Mass Transport Processes, Parts A and B, 129-138, November 11–17, 2011
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2011-62696
https://doi.org/10.1115/IMECE2011-62696
View Paper titled, Influence of the Flow From an Axial Fan on the Performance of a Heat Exchanger
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Topics: Flow (Dynamics), Heat exchangers, Condensers (steam plant), Air flow, Heat transfer, Concentrating solar power, Cooling, Cross-flow, Heat flux, Particulate matter
Proceedings Papers

Development of Compact Thermal-Fluid Models at the Electronic Equipment Level

Jason Stafford, Ronan Grimes, David Newport
Proc. ASME. IMECE2011, Volume 1: Advances in Aerospace Technology; Energy Water Nexus; Globalization of Engineering; Posters, 297-307, November 11–17, 2011
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2011-63128
https://doi.org/10.1115/IMECE2011-63128
View Paper titled, Development of Compact Thermal-Fluid Models at the Electronic Equipment Level
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Topics: Electronic equipment, Thermofluids, Computational fluid dynamics, Boundary-value problems, Design, Temperature, Aircraft, Avionics, Celsius scale, Electronic components
Proceedings Papers

FINLESS Heat Sinks, High Performance and Low Cost for Low Profile Cooling Applications

Ed Walsh, Ronan Grimes, Patrick Walsh, Jason Stafford
Proc. ASME. IMECE2011, Volume 10: Heat and Mass Transport Processes, Parts A and B, 1-9, November 11–17, 2011
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2011-62012
https://doi.org/10.1115/IMECE2011-62012
View Paper titled, FINLESS Heat Sinks, High Performance and Low Cost for Low Profile Cooling Applications
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Topics: Boundary layers, Cooling, Design, Electronics, Flow (Dynamics), Heat sinks, Heat transfer, Heat transfer coefficients, Imaging, Laminar flow
Journal Articles

Development of Compact Thermal–Fluid Models at the Electronic Equipment Level

Jason Stafford, Ronan Grimes, David Newport
Journal: Journal of Thermal Science and Engineering Applications
Publisher: ASME
Article Type: Research Papers
J. Thermal Sci. Eng. Appl. September 2012, 4(3): 031007.
https://doi.org/10.1115/1.4006715
Published Online: July 16, 2012
View Article titled, Development of Compact Thermal–Fluid Models at the Electronic Equipment Level
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Topics: Boundary-value problems, Computational fluid dynamics, Design, Electronic equipment, Electronics, Flow (Dynamics), Heat, Modeling, Optimization, Temperature
Journal Articles

Viscous Scaling Phenomena in Miniature Centrifugal Flow Cooling Fans: Theory, Experiments and Correlation

Patrick A. Walsh, Edmond J. Walsh, Ronan Grimes
Journal: Journal of Electronic Packaging
Publisher: ASME
Article Type: Research Papers
J. Electron. Packag. June 2010, 132(2): 021001.
https://doi.org/10.1115/1.4001590
Published Online: May 19, 2010
View Article titled, Viscous Scaling Phenomena in Miniature Centrifugal Flow Cooling Fans: Theory, Experiments and Correlation
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Topics: Blades, Chords (Trusses), Fans, Flow (Dynamics), Pressure, Scaling laws (Mathematical physics), Cooling, Reynolds number, Design
Proceedings Papers

Thermal Performance of Two and Three Dimensional Radial Flow Heat Sinks

Ronan Grimes, Kieran Hanly, Edmond Walsh
Proc. ASME. HT2009, Volume 1: Heat Transfer in Energy Systems; Thermophysical Properties; Heat Transfer Equipment; Heat Transfer in Electronic Equipment, 963-969, July 19–23, 2009
Publisher: American Society of Mechanical Engineers
Paper No: HT2009-88458
https://doi.org/10.1115/HT2009-88458
View Paper titled, Thermal Performance of Two and Three Dimensional Radial Flow Heat Sinks
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Topics: Heat sinks, Radial flow, Heat transfer, Displacement, Electronic systems, Fins, Flow (Dynamics), Optimization, Pressure drop, Thermal management
Journal Articles

An Experimental Investigation of the Flow Fields Within Geometrically Similar Miniature-Scale Centrifugal Pumps

Daniel Kearney, Ronan Grimes, Jeff Punch
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. October 2009, 131(10): 101101.
https://doi.org/10.1115/1.3176985
Published Online: September 11, 2009
View Article titled, An Experimental Investigation of the Flow Fields Within Geometrically Similar Miniature-Scale Centrifugal Pumps
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Topics: Blades, Flow (Dynamics), Pumps, Pressure, Centrifugal pumps, Impellers, Reynolds number
Proceedings Papers

PIV Measurements of the Effects of Geometric Scale on Electronics Cooling Axial Fan Flow

Ronan Grimes, David Quin, Edmond Walsh, Jeff Punch
Proc. ASME. HT2007, ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference, Volume 3, 275-281, July 8–12, 2007
Publisher: American Society of Mechanical Engineers
Paper No: HT2007-32615
https://doi.org/10.1115/HT2007-32615
View Paper titled, PIV Measurements of the Effects of Geometric Scale on Electronics Cooling Axial Fan Flow
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Topics: Computer cooling, Flow (Dynamics), Axial flow, Design, Fans, Electronic systems, Energy dissipation, Heat, Pressure, Radial flow
Proceedings Papers

Characterisation of a Variable Conductance Heat Pipe Prototype for a Photonic Application

Martin Cleary, Ronan Grimes, Marc Hodes, Mark T. North
Proc. ASME. HT2007, ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference, Volume 3, 313-320, July 8–12, 2007
Publisher: American Society of Mechanical Engineers
Paper No: HT2007-32623
https://doi.org/10.1115/HT2007-32623
View Paper titled, Characterisation of a Variable Conductance Heat Pipe Prototype for a Photonic Application
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Topics: Electrical conductance, Engineering prototypes, Heat pipes, Temperature control
Proceedings Papers

An Experimental and Theoretical Investigation of the Pumping Performance of Geometrically Similar Flow Fields Within Miniature-Scale Centrifugal Pumps

Daniel Kearney, Jeff Punch, Ronan Grimes
Proc. ASME. HT2007, ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference, Volume 2, 893-900, July 8–12, 2007
Publisher: American Society of Mechanical Engineers
Paper No: HT2007-32519
https://doi.org/10.1115/HT2007-32519
View Paper titled, An Experimental and Theoretical Investigation of the Pumping Performance of Geometrically Similar Flow Fields Within Miniature-Scale Centrifugal Pumps
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Topics: Centrifugal pumps, Cooling, Flow (Dynamics), Thermal management, Pumps, Blades, Reynolds number, Heat, Electronics, Fluids
Proceedings Papers

An Analysis of the Flow Fields Within Geometrically-Similar Miniature Scale Centrifugal Pumps

Daniel Kearney, Jeff Punch, Ronan Grimes
Proc. ASME. HT2008, Heat Transfer: Volume 2, 755-764, August 10–14, 2008
Publisher: American Society of Mechanical Engineers
Paper No: HT2008-56195
https://doi.org/10.1115/HT2008-56195
View Paper titled, An Analysis of the Flow Fields Within Geometrically-Similar Miniature Scale Centrifugal Pumps
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Topics: Centrifugal pumps, Cooling, Electronics, Flow (Dynamics), Thermal management, Pumps, Blades, Impellers, Pressure, Reynolds number
Proceedings Papers

PIV Measurements in the Condenser Region of a Gas-Loaded Thermosyphon

Martin Cleary, Ronan Grimes, Marc Hodes, Mark T. North
Proc. ASME. HT2008, Heat Transfer: Volume 3, 651-658, August 10–14, 2008
Publisher: American Society of Mechanical Engineers
Paper No: HT2008-56402
https://doi.org/10.1115/HT2008-56402
View Paper titled, PIV Measurements in the Condenser Region of a Gas-Loaded Thermosyphon
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Topics: Condensers (steam plant), Flow (Dynamics), Vapors, Heat, Temperature, Heat pipes, Particulate matter, Stress, Coolants, Cycles
Proceedings Papers

On the Performance of Miniature Centrifugal Fans With Varying Blade Cord Length

Patrick A. Walsh, Edmond Walsh, Ronan Grimes
Proc. ASME. ICNMM2008, ASME 2008 6th International Conference on Nanochannels, Microchannels, and Minichannels, 1389-1397, June 23–25, 2008
Publisher: American Society of Mechanical Engineers
Paper No: ICNMM2008-62086
https://doi.org/10.1115/ICNMM2008-62086
View Paper titled, On the Performance of Miniature Centrifugal Fans With Varying Blade Cord Length
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Topics: Blades, Fans, Chords (Trusses), Flow (Dynamics), Design, Pressure, Reynolds number, Cooling, Electronics, Energy consumption
Proceedings Papers

Thermal Management of Low Profile Applications

Ed Walsh, Pat Walsh, Ronan Grimes, Vanessa Egan
Proc. ASME. ICNMM2007, ASME 5th International Conference on Nanochannels, Microchannels, and Minichannels, 245-251, June 18–20, 2007
Publisher: American Society of Mechanical Engineers
Paper No: ICNMM2007-30138
https://doi.org/10.1115/ICNMM2007-30138
View Paper titled, Thermal Management of Low Profile Applications
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Topics: Thermal management, Heat sinks, Battery life, Electrical measurement, Electronics, Energy dissipation, Fins, Heat, Optimization, Rotors
Proceedings Papers

The Response of Portable Electronics to Transient Conditions of Temperature and Humidity

Jeff Punch, Ronan Grimes, Greg Heaslip, Timo Galkin, Kyo¨sti Va¨keva¨inen, Vesa Kyyhkynen, Erkko Elonen
Proc. ASME. HT2005, Heat Transfer: Volume 4, 871-876, July 17–22, 2005
Publisher: American Society of Mechanical Engineers
Paper No: HT2005-72578
https://doi.org/10.1115/HT2005-72578
View Paper titled, The Response of Portable Electronics to Transient Conditions of Temperature and Humidity
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Topics: Electronics, Temperature, Transients (Dynamics), Condensation, Corrosion, Design, Electronic systems, Electronic products, Engineers, Experimental characterization
Proceedings Papers

The Effect of Reynolds Number on Microfan Performance

David Quin, Ronan Grimes, Ed Walsh, Mark Davies, Stefan Kunz
Proc. ASME. ICMM2004, ASME 2nd International Conference on Microchannels and Minichannels, 761-768, June 17–19, 2004
Publisher: American Society of Mechanical Engineers
Paper No: ICMM2004-2409
https://doi.org/10.1115/ICMM2004-2409
View Paper titled, The Effect of Reynolds Number on Microfan Performance
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Topics: Reynolds number, Fans, Flow (Dynamics), Axial flow, Computers, Cooling, Dimensions, Electronic systems, Electronics, Energy dissipation
Journal Articles

Thermal Management of Low Profile Electronic Equipment Using Radial Fans and Heat Sinks

Ed Walsh, Pat Walsh, Ronan Grimes, Vanessa Egan
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Design Innovations
J. Heat Mass Transfer. December 2008, 130(12): 125001.
https://doi.org/10.1115/1.2977602
Published Online: September 25, 2008
View Article titled, Thermal Management of Low Profile Electronic Equipment Using Radial Fans and Heat Sinks
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Topics: Design, Fans, Flow (Dynamics), Heat sinks, Rotors, Thermal management, Thermal resistance, Heat transfer, Blades
Proceedings Papers

Micro-PIV Measurements of Flowfields Within Plugs in Two Phase Flows for µ-TAS Applications

Colin King, Edmond Walsh, Ronan Grimes
Proc. ASME. ICNMM2006, ASME 4th International Conference on Nanochannels, Microchannels, and Minichannels, Parts A and B, 1147-1155, June 19–21, 2006
Publisher: American Society of Mechanical Engineers
Paper No: ICNMM2006-96181
https://doi.org/10.1115/ICNMM2006-96181
View Paper titled, Micro-PIV Measurements of Flowfields Within Plugs in Two Phase Flows for µ-TAS Applications
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Topics: Two-phase flow, Flow (Dynamics), Fluids, Chain, Chemical reactions, Design, Particulate matter, Tubing