William Davies

William Davies, Ph.D.

Senior Associate
Thermal Sciences
Natick

Dr. Davies specializes in the analysis of fluid flow and heat transfer. He has broad expertise in the experimental and computational analysis of industrial heat exchangers and fluid flows. He has also designed, constructed and instrumented numerous experimental systems for the testing and analysis of HVAC&R and power-plant components. His research interests include the fundamentals of two-phase flow in heat transfer applications. His work at Exponent includes the investigations of fires, consumer products and chemical exposures. Dr. Davies also has extensive experience as a wireline field engineer in the oil and gas industry, acquiring and analyzing petrophysical and geotechnical formation data.

Dr. Davies’ academic work focused on reducing water use in energy generation. As a graduate student in the Air Conditioning and Refrigeration Center (ACRC) at the University of Illinois at Urbana-Champaign (UIUC), he designed and built experimental facilities to analyze air-cooled condensers for power-plant applications. The facilities included diabatic and adiabatic visualization of two-phase flow, as well as measurements of heat transfer, pressure drop and two-phase void fraction. He also designed and built an anemometer calibration facility.

Prior to graduate school, Dr. Davies was a General Field Engineer and Engineer-in-Charge for Schlumberger Wireline. As a General Field Engineer, he led crews in acquiring petrophysical well and formation data on both land and off-shore rigs in Mexico and New Zealand. He designed and led data-acquisition operations using seismic, pressure-testing, coring, and other well-testing equipment. He was certified and led operations with radiation and explosives for both international and national clients. As the Engineer-in-Charge for the Schlumberger’s New Zealand base, he managed wireline operations for a team of 21 employees.

CREDENTIALS & PROFESSIONAL HONORS

  • Ph.D., Mechanical Engineering, University of Illinois, Urbana-Champaign, 2019
  • M.S., Mechanical Engineering, University of Illinois, Urbana-Champaign, 2016
  • B.A., Physics, Bates College, 2008

LICENSES & CERTIFICATIONS

Hazardous Waste Operation and Emergency Response Certification, 29 CFR 1910.120

LANGUAGES

  • Spanish

Publications

Davies III, William A; Hrnjak, P. Heat transfer and flow regimes during counter-flow steam condensation in flattened-tube air-cooled condensers. International Journal of Heat and Mass Transfer, 2020; 147: 118930.

Davies III, William A; Hrnjak, P. A correlation for heat transfer coefficient during stratified steam condensation in large flattened tubes with variable inclination and wall temperature. International Journal of Heat and Mass Transfer, 2020; 146: 118666.

Davies III, William A; Hrnjak, P. Local heat transfer coefficient during stratified flow in large, flattened-tube steam condensers with non-uniform heat flux and wall temperature. International Journal of Heat and Mass Transfer, 2020; 146: 118854.

Davies III, William A; Hrnjak, P. Effects of Airflow Profile and Condensation Pressure on Performance of Air-Cooled Condensers. Heat Transfer Engineering, 2019; 1-13.

Davies III, William A; Hrnjak, P. Heat transfer in a large, inclined, flattened-tube steam condenser. Heat Transfer Engineering, 2019; 41.

Abadi, S.M.A.N.R; Davies, William A; Hrnjak, P; Meyer, J.P. Numerical study of steam condensation inside a long inclined flattened channel. Int. J. Heat Mass Transfer, 2019; 134:450-467.

Davies III, William A; Hrnjak, P. Thermo-hydraulic model for steam condensation in a large, inclined flattened-tube air-cooled condenser. Applied Thermal Engineering, 2019; 149:745-756.

Davies III, William A; Kang, Y; Hrnjak, P; Jacobi, A.M. Effect of inclination on heat transfer and flow regimes in large flattened-tube steam condensers. Applied Thermal Engineering, 2019; 148:722-733.

Davies III, William A; Kang, Y; Hrnjak, P; Jacobi, A.M. Heat transfer and flow regimes in large flattened-tube steam condensers. Applied Thermal Engineering, 2019; 148:722-733.

Davies III, W A; Kang, Y; Hrnjak, P; Jacobi, A M. Method for evaluating the effect of inclination on the performance of large flattened-tube steam condensers. Applied Thermal Engineering, 2018; 138:934-941.

Kang, Y; Davies III, W A; Hrnjak, P; Jacobi, A M. Effect of inclination on pressure drop and flow regimes in large flattened-tube steam condensers. Applied Thermal Engineering, 2017; 123:498-513.

Presentations

Davies, William A; Hrnjak, P. Pressure drop in large flattened-tube steam condensers. Paper presented at the 25th IIR International Congress of Refrigeration. Montreal, Canada, Aug 2019.

Davies, William A; Hrnjak, P. Steam condensation heat transfer coefficient in large, flattened-tube steam condensers. Paper presented at the 25th IIR International Congress of Refrigeration. Montreal, Canada, Aug 2019.

Davies, William A; Hrnjak, P. Thermo-hydraulic model for steam condensation in a large, inclined, flattened-tube air-cooled condenser. Paper presented at Refrigeration and Air Conditioning Conference. Purdue, Indiana, Jul 2018

Davies, William A; Hrnjak, P. Effects of Airflow Direction, Air Velocity Profile, and Condensation Pressure on the Performance of Air-Cooled Condensers. Paper presented at Refrigeration and Air Conditioning Conference. Purdue, Indiana, Jul 2018.

Davies, William A; Kang, Y; Hrnjak, P; Jacobi, A M. Effect of Inclination on Heat Transfer in Large Flattened-Tube Steam Condensers. Paper presented at ASME 2017 International Mechanical Engineering Congress and Exposition. Tampa, Florida, Nov 2017.

Davies, William A. Effect of California’s Carbon Cap-and-Trade Policy on Home Design. Poster presented at the Institute for Sustainability, Energy, and Environment Congress. Urbana, Illinois, Sep 2017.

Davies, William A; Hrnjak, P; Jacobi, A M. Advanced Air-Cooled Condensers with Vortex-Generator Arrays Between Fins. Presented at NSF-EPRI Power Plant Dry Cooling Science and Technology Innovation Program Annual Review Meeting. Palo Alto, California, May 2017

Davies, William A; Kang, Y; Hrnjak, P; Jacobi, A M. Heat Transfer and Visualization in Large Flattened-Tube Condensers with Variable Inclination. Paper presented at Refrigeration and Air Conditioning Conference. Purdue, Indiana, Jul 2016.

Prior Experience

General Field Engineer (Wireline), Schlumberger, 2009-2013

Professional Affiliations

National Fire Protection Association

National Association of Fire Investigators

Society of Petroleum Engineers

Additional Information

Peer Reviewer

Energy

Applied Thermal Engineering

International Journal of Heat and Mass Transfer

13th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics

CREDENTIALS & PROFESSIONAL HONORS

  • Ph.D., Mechanical Engineering, University of Illinois, Urbana-Champaign, 2019
  • M.S., Mechanical Engineering, University of Illinois, Urbana-Champaign, 2016
  • B.A., Physics, Bates College, 2008

LICENSES & CERTIFICATIONS

Hazardous Waste Operation and Emergency Response Certification, 29 CFR 1910.120

LANGUAGES

  • Spanish