David A. Torvi

     David A. Torvi  B.Sc., M.Sc., Ph.D., P.Eng.

    Professor of Mechanical Engineering
    Head of the Department of Mechanical Engineering

    Biography

    Prior to joining the University of Saskatchewan, Prof. Torvi worked as a Research Officer with the Fire Research Program at the National Research Council of Canada. Before beginning graduate studies, he spent three years in industry designing HVAC equipment. Prof. Torvi is active in a number of technical societies and standards organizations, including ASEE, ASTM, CGSB, ULC and SFPE.

    Teaching Interests

    Prof. Torvi teaches undergraduate and graduate courses in thermal fluids and design. He also offers a technical elective in Fire Protection Engineering (ME 478), one of only a few courses in this area in North America. Prof. Torvi has published several papers on course development, fire protection engineering education, and engineering education instructional programs for graduate students.

    Research Interests

    Prof. Torvi and his students conduct numerical and experimental research aimed at improving the knowledge of heat transfer in materials under high heat flux conditions. His research has been funded by NSERC, CFI and the Canadian Space Agency. Current research projects include:

    • modeling heat transfer in thermal protective clothing and human skin,
    • evaluating the performance and durability of protective clothing,
    • modeling effects of fire on buildings and the environment,
    • correlating small and full-scale fire test results of building materials and consumer products.

    Selected Publications

    Cavanagh, J.M., Torvi, D., Gabriel, K.S. & Ruff, G.A., 2006, Test Method for Evaluating Fabric Flammability and Predicted Skin Burn Injury in Microgravity, Microgravity Sci& Tech, 18(2), 14-26.

    Torvi, D.A. & Threlfall, T.G., 2006, Heat Transfer Model of Flame Resistant Fabrics During Cooling After Exposure to Fire, Fire Technology, 42, 27-48.

    Torvi, D.A., 2005, Effects of Thermal Properties on Skin Burn Predictions in Longer Duration Protective Clothing Tests, Journal of the ASTM International, 2 (1), Paper JAI12115.

    Publications

    Refereed Journal Publications
    • Ewina, J.U., Robson, L.D., Obach, M.R., Torvi, D.A. and Weckman, E.J. (2011). Evaluating Models for Predicting Full-Scale Fire Behaviour of Polyurethane Foam Using Cone Calorimeter Data, Fire Technology, . (Accepted)
    • von Baeyer, C.L., Torvi, D.A., Hemingson, H. and Beriault, D. (2011). Water Circulation and Turbulence in the Cold Pressor Task: Unexplored Sources of Variance Among Experimental Pain Laboratories, Pediatric Pain Letter, 13(1), 13-16.
    • Rezazadeh, M. and Torvi, D.A. (2010). Assessment of factors affecting the continuing performance of firefighters protective clothing: A literature review, Fire Technology, 47, 565-599.
    • Fauchoux, M., Bansal, M., Talukdar, P., Simonson, C.J. and Torvi, D.A. (2010). Testing and modeling of a novel ceiling panel for maintaining space relative humidity by moisture transfer, International Journal of Heat and Mass Transfer, 53, 3961-3968.
    • Mettananda, C.V.R., Torvi, D.A. and Crown, E.M. (2010). Characterization of the Combustion Process of Flame Resistant Thermal Protective Textiles in the Presence of Oily Contaminants, Textile Research Journal, 80, 917-934.
    • Talukdar, P., Torvi, D.A., Simonson, C.J. and Sawcyn, C.M.J. (2010). Coupled CFD and Radiation Simulation of Air Gaps in Bench Top Protective Fabric Tests, International Journal of Heat and Mass Transfer, 53, 526-539.
    • Fauchoux, M.T., Simonson, C.J. and Torvi, D.A. (2009). The Effect of Energy Recovery on Indoor Relative Humidity, Energy Consumption and Economics of a School, ASHRAE Transactions, 115(2), 519-530.
    • Sawcyn, C.M.J. and Torvi, D.A. (2009). Experimental Study of the Heat Transfer in Air Spaces Between Protective Fabrics and Sensors in Protective Clothing Tests, International Journal of Transport Phenomena, 11, 115-125.
    • Sawcyn, C.M.J. and Torvi, D.A. (2009). Improving Heat Transfer Models of Air Gaps in Bench Top Tests of Thermal Protective Fabrics, Textile Research Journal, 79, 632-644.
    • Fauchoux, M.T., Simonson, C.J. and Torvi, D.A. (2009). Tests of a Novel Ceiling Panel for Maintaining Space Relative Humidity by Moisture Transfer From an Aqueous Salt Solution, Journal of the ASTM International, 6(4), (Paper JAI102034), 1-10.
    • Enninful, E. and Torvi, D.A. (2008). A Variable Property Heat Transfer Model for Predicting Soil Temperature Profiles During Simulated Wildland Fire Conditions, International Journal of Wildland Fire, 17, 205-213. Available online at: http://www.publish.csiro.au/nid/114/paper/WF07002.htm
    • Fauchoux, M., Simonson, C.J. and Torvi, D.A. (2007). The effect of energy recovery on perceived air quality, energy consumption and economics of an office building, ASHRAE Transactions, 113(2), 437-449.
    • Cavanagh, J.M., Torvi, D.A., Gabriel, K.S. and Ruff, G.A. (2006). Test Method for Evaluating Fabric Flammability and Predicted Skin Burn Injury in Microgravity, Microgravity Science and Technology, 18(2), 14-26.
    • Benichou, N., Kashef, A.H., Reid, I., Hadjisophocleous, G.V., Torvi, D. and Morinville, G. (2005). FIERAsystem: A Fire Risk Assessment Tool to Evaluate Fire Safety in Industrial Buildings and Large Spaces, Journal of Fire Protection Engineering, 15, 145-172.
    Refereed Conference Proceedings
    • Rezazadeh, M. and Torvi, D.A. (2012). Non Destructive Test Methods to Assess the Level of Damage to Firefighters' Protective Clothing, ASTM 9th Symposium on Performance of Protective Clothing and Equipment (STP 1544), Anaheim, CA, June 16-17, 2011, Paper No. STP104097/003206STP.
    • Fauchoux, M., Simonson, C.J., Torvi, D.A. and Talukdar, P. (2011). CFD modelling with buoyancy effects for a heat and moisture transfer ceiling panel, Proceedings of the ASME/JSME 2011 8th Thermal Engineering Joint Conference (AJTEC2011), Honolulu, Hawaii, March 13-17, Paper No. AJTEC2011-44121, (8 pages) (CD Rom).
    • Fauchoux, M., Simonson, C.J. and Torvi, D.A. (2010). Flow Visualization of Airflow Through a Rectangular Duct With Combined Heat and Mass Transfer, 14th International Heat Transfer Conference, Washington, DC, August 8-13, Paper No. IHTC14-22881.
    • Ghazy, A., Torvi, D.A. and Bergstrom, D.J. (2009). Numerical Simulation of Transient Heat Transfer in Firefighters Protective Clothing, 17th Annual Conference of the CFD Society of Canada, Ottawa, Ontario, Canada, May 3-5, (8 pages).
    • Fauchoux, M., Simonson, C.J. and Torvi, D.A. (2008). Investigation of a Novel Ceiling Panel for Heat and Moisture Control in Buildings, 8th Nordic Symposium on Building Physics (C. Rode, editor), Copenhagen, Denmark, June 16-18, 1269-1276.
    Non-refereed Conference Proceedings
    • Rezazadeh, M. and Torvi, D.A. (2012). Discolouration as an Indicator of Mechanical Strength of Firefighters' Protective Clothing, Combustion Institute, Canadian Section Spring Technical Meeting, Toronto, ON, May 14-16, 160-165.
    • Robson, L.D., Obach, M.R., Torvi, D.A. and Weckman, E.J. (2011). Effects of Incident Heat Flux on Cone Calorimeter Test Results of Polyurethane Foam, Combustion Institute Canadian Section Spring Technical Meeting, Winnipeg, MB, May 9-11, 384-389.
    • Rezazadeh, M. and Torvi, D.A. (2011). Effect of Heat Transfer Mode on the Thermal Performance of Firefighters Protective Clothing, Combustion Institute Canadian Section Spring Technical Meeting, Winnipeg, MB, May 9-11, 390-395.
    • Robson, L.D., Obach, M.R., Riggs, J., Ezinwa, J.U., Torvi, D.A. and Weckman, E.J. (2011). Effects of Polyurethane Foam Thickness on Flame Spread and Heat Release Rates Measured in Cone and Furniture Calorimeter Tests, 12th International Fire and Materials Conference, San Francisco, CA, January 31 - February 2, 309-320.
    • Obach, M.R., Torvi, D.A., Sumner, D. and Bergstrom, D.J. (2010). Salt-water modeling of a wildland fire's convection column, Proceedings of the Combustion Institute - Canadian Section Spring Technical Meeting, Ottawa, Ontario, Canada, May 9-12, 190-195.
    • Rezazadeh, M. and Torvi, D.A. (2010). Effect of Multi-Stage Thermal Ageing on the Thermal Response of Thermal Protective Fabrics, Combustion Institute Canadian Section Spring Technical Meeting, Ottawa, ON, May 9-12, 208-213.
    • Robson, L.D., Obach, M.R., Ezinwa, J.U., Torvi, D.A. and Weckman, E.J. (2010). Fire Modeling of Polyurethane Foams Using Convolution Integral Formulation, Combustion Institute Canadian Section Spring Technical Meeting, Ottawa, ON, May 9-12, 196-201.
    • Ezinwa, J.U., Torvi, D.A. and Weckman, E.J. (2009). Full-Scale Fire Modeling of Polyurethane Foams Using Cone Calorimeter Data, Combustion Institute Canadian Section Spring Technical Meeting, Montreal, QC, May 11-13, 43-48 (CD Rom).
    • Olabode, D., Weckman, E.J., Epling, B. and Torvi, D.A. (2009). Observations of Burning Characteristics of Laminated Polyurethane Foams, Combustion Institute Canadian Section Spring Technical Meeting, Montreal, QC, May 11-13, 37-42 (CD Rom).
    • Ezinwa, J.U., Rigg, J., Torvi, D.A. and Weckman, E.J. (2009). Effects of Ignition Location on Flame Spread and Heat Release Rates in Furniture Calorimeter Tests of Polyurethane Foams, 11th International Fire and Materials Conference, San Francisco, CA, January 26-28, 645-656 (CD Rom).
    • Olabode, D., Rigg, J., Weckman, E.J., Epling, B. and Torvi, D.A. (2009). Preliminary Furniture Calorimeter Tests of Laminated Polyurethane Foams, 11th International Fire and Materials Conference, San Francisco, CA, January 26-28, (14 pages) (CD Rom).
    • Mettananda, C.V.R., Crown, E.M. and Torvi, D.A. (2008). Characterization of the Combustion Process of Flame Resistant Thermal Protective Textiles in the Presence of Oily Contaminants: Calorimetery, Annual Conference of the International Textile and Apparel Association, Schaumburg, IL, November 5-8, (4 pages) (CD Rom).
    • Ghazy, A., Torvi, D.A. and Bergstrom, D.J. (2008). Protective Fabric Temperatures During Radiant Exposures in Cone Calorimeter, Combustion Institute Canadian Section Spring Technical Meeting, Toronto, ON, May 12-14, 255-260 (CD Rom).
    • Simonson, C.J., Fauchoux, M., Torvi, D.A. and Ojanen, T. (2008). Cost Effective and Energy Efficient Control of Indoor Humidity in Buildings with Hygroscopic Materials in the Building Envelope and HVAC Systems, 6th International Engineering Conference, Sharm El-Sheikh, Egypt, March 20-23, (10 pages).
    • Fauchoux, M., Simonson, C.J. and Torvi, D.A. (2007). Simulation of Hygroscopic Materials in the HVAC system of an Office Building, 8th International Energy Agency, Energy Conservation in Buildings and Community Systems (IEA ECBCS) Annex 41 meeting, Porto, Portugal, October 22-24, Paper No. A41-T4-C-07-4, (10 pages).
    • Torvi, D.A. (2007). Using Pine Wood Derby Cars to Introduce Mechanical Engineering to Students in a First Year General Engineering Design Course, 4th Canadian Design Engineering Network (CDEN)/Canadian Congress on Engineering Education (C2E2) Conference, Winnipeg, MB, July 22-24, (6 pages) (CD Rom).
    • Hurd, M., Torvi, D.A., Weckman, E. and Enninful, E. (2007). Small and Full-Scale Fire Testing of Polyurethane Foams for Mattresses, Combustion Institute Canadian Section Spring Technical Meeting, Banff, AB, May 14-16, Paper No. F1, (6 pages).
    • Hurd, M., Torvi, D.A., Weckman, E. and Enninful, E. (2007). Effects of Polyurethane Mattress Foam Properties and Geometry on Small and Large-Scale Fire Test Results, 10th International Fire and Materials Conference, San Francisco, CA, January 29-31, (13 pages) (CD Rom).
    • Torvi, D.A. (2006). Developing Partnerships with the Fire Service to Enhance Fire Protection Engineering Education Opportunities, 3rd CDEN/RCCI International Design Conference", Toronto, ON, July 24-26, Paper No. 10025, 214-219.
    • Torvi, D.A. (2006). Development of Engineering Tools for Evaluating the Performance of Firefighters Protective Clothing, Society of Fire Protection Engineers Symposia: Partners for Protection: Fire Protection Engineers and the Fire Service, Ellicott City, MD, October 17-18, 27-32.
    • Enninful, E.K. and Torvi, D. (2006). Heat Transfer in Forest Floor Soil Under Simulated Wildland Fire Conditions, Combustion Institute Canadian Section Spring Technical Meeting, Waterloo, ON, May 14-17, Paper No. A3, (6 pages) (CD Rom).
    • Threlfall, T.G. and Torvi, D. (2006). Comparison of Predicted and Measured Temperatures in Fire Tests of Mattresses, Combustion Institute Canadian Section Spring Technical Meeting, Waterloo, ON, May 14-17, Paper No. A2, (6 pages) (CD Rom).
    Conference Presentations / Poster Presentations
    • Robson, L.D., Obach, M.R., Torvi, D.A. and Weckman, E.J. (2011). Predicting Full-Scale Fire Test Results of Polyurethane Foam Using Cone Calorimeter Data, 10th International Symposium on Fire Safety Science, College Park, MD, June 19-24.
    • Rezazadeh, M. and Torvi, D.A. (2010). Effects of Thermal Ageing on Performance of Materials Used in Protective Clothing, 22nd Canadian Material Science Conference, Waterloo, ON, June 8-11.
    • Weckman, E.J. and Torvi, D.A. (2010). Building Bridges: Collaboration in Fire Science, Engineering and the Fire Service, Ottawa Fire Instruction Research and Engineering (FIRE) 2010 Conference, Ottawa, ON, May 17-21.
    • Fauchoux, M., Simonson, C.J. and Torvi, D.A. (2009). Comfort, energy consumption and economics of a school with energy recovery, 2009 ASHRAE Annual Conference, Louisville, KY, June 20-24, (poster).
    • Weckman, E.J. and Torvi, D.A. (2008). Foam Fire Testing: Some Issues and Results, International Council for Research and Innovation in Building and Construction (CIB) Commission W014 (Fire) Meeting, Ottawa, ON, September 3-5.
    Invited Lecture/Talk
    • Torvi, D.A. (Invited) (2010). Fire Protection Engineering Research and Education in Canada, American Society for Heating, Refrigerating and Air Conditioning Engineers (ASHRAE) Chapter Meeting, Saskatoon, SK, September 14.
    • Fauchoux, M., Simonson, C.J. and Torvi, D.A. (Invited) (2008). Application of Hygroscopic Materials in HVAC Systems, Proceedings of the IEA (International Energy Agency) ECBCS Annex 41 Closing Seminar (C. Rode, editor), Lyngby, Denmark, June 19, 129-140.
    • Weckman, E.J. and Torvi, D.A. (Invited) (2008). The Emerging Field of Fire Safety Engineering: Partnerships in Research and Education, Combustion Institute Canadian Section Spring Technical Meeting, Toronto, ON, May 12-14, 4.
    • Torvi, D.A. (Invited) (2008). Firefighters Protective Clothing Durability Research at the University of Saskatchewan, 103rd Scientific Session of the Institute of Textile Science, Ottawa, ON, April 1.
    • Torvi, D.A. (Invited) (2007). University of Saskatchewan Fire Research and Design Projects, Forest Engineering Research Institute of Canada (FERIC) Wildland Fire Operations Research Group Meeting, Edmonton, AB, October 17.
    • Torvi, D.A. (Invited) (2006). Fire Protection Engineering Research and Education at the University of Saskatchewan, University of Maryland, College Park, MD, October 19.
    • Torvi, D.A. (Invited) (2006). FPE Research & Education at University of Saskatchewan, Fire Research Program, National Research Council Canada, Ottawa, ON, July 17.
    • Torvi, D. (Invited) (2006). Mattress Fire Testing and Research, National Security Equipment Committee Meeting (Correctional Service Canada), Saskatoon, SK, May 30.
    • Torvi, D. (Invited) (2006). Fire Testing, University of Waterloo - Guest Lecture in ME 595a Fire Safety Engineering, Waterloo, ON, January 25.

    Research Grants

    2011-2012

    • Principal Investigator, Heat Transfer in Materials During Exposures to High Temperatures and Heat Fluxes, NSERC, Discovery Grant.

    2010-2011

    • Principal Investigator, Heat Transfer in Materials During Exposures to High Temperatures and Heat Fluxes, NSERC, Discovery Grant.
    • Principal Investigator, Support for NSERC CREATE Letter of Intent, University of Saskatchewan, Proposal Development Assistance.
    • Co-Investigator, A New, Scalable Fire Performance Screening Method for Lightweight Materials and Panels, NSERC, Engage Grant.

    2009-2010

    • Principal Investigator, Heat Transfer in Materials During Exposures to High Temperatures and Heat Fluxes, NSERC, Discovery Grant.
    • Principal Investigator, Heat Transfer in Materials During Exposures to High Temperatures and Heat Fluxes, NSERC, Discovery Grant.

    2008-2009

    • Principal Investigator, Heat Transfer in Materials During Exposures to High Temperatures and Heat Fluxes, NSERC, Discovery Grant.
    • Principal Investigator, Proposal Development Fund Award, University of Saskatchewan Office of the Vice-President Research, Grant.
    • Principal Investigator, PyroConvective Activity and Wildland Fire Management: Phase I A Literature Review on the Current State of Knowledge, Government of the Northwest Territories, Grant.

    2007-2008

    • Principal Investigator, Expenses for Invited Lecture, The Institute of Textile Science, Travel Grant.
    • Principal Investigator, Heat Transfer in Materials During High Exposures to High Temperatures and Heat Fluxes, NSERC, Discovery Grant.

    Teaching

    2011-2012

    • EPIP401.3 - EPIP Coordinator
    • ME318.3 - Mechanical Engineering Laboratory I
    • ME327.3 - Heat Transfer
    • ME478.3 - Introduction to Fire Protection Engineering
    • ME495.6 - Industrial Design Project

    2010-2011

    • EPIP401.3 - EPIP Coordinator
    • ME229.3 - Introduction to Engineering Design
    • ME318.3 - Mechanical Engineering Laboratory I
    • ME327.3 - Heat Transfer
    • ME495.6 - Industrial Design Project

    2009-2010

    • EPIP401.3 - EPIP Coordinator
    • ME229.3 - Introduction to Engineering Design
    • ME318.3 - Mechanical Engineering Laboratory I
    • ME327.3 - Heat Transfer
    • ME478.3 - Intro Fire Protection Eng
    • ME874.3 - Heat Transfer
    • ME898.3 - Advanced Topics in Fire Protection Engineering

    2008-2009

    • EPIP401.3 - EPIP Coordinator
    • ME229.3 - Introduction to Engineering Design
    • ME318.3 - Mechanical Engineering Laboratory I
    • ME327.3 - Heat Transfer
    • ME495.6 - Industrial Design Project
    • ME874.3 - Heat Transfer

    2007-2008

    • EPIP401.3 - EPIP Coordinator
    • ME229.3 - Introduction to Engineering Design
    • ME318.3 - Mechanical Engineering Laboratory I
    • ME327.3 - Heat Transfer
    • ME417.3 - Thermodynamics II
    • ME478.3 - Intro Fire Protection Eng
    • ME495.6 - Industrial Design Project
    • ME874.3 - Heat Transfer
    • ME898.3 - Special Topics (Introduction to Fire Protection Engineering)

    Research Projects

    2011-2012

    • correlating small and full-scale fire test results of building materials and consumer products
    • evaluating the performance and durability of protective clothing
    • heat and moisture transfer in air-to-air energy exchangers
    • modeling effects of fire on buildings and the environment
    • modeling heat transfer in thermal protective clothing and human skin

    2010-2011

    • correlating small and full-scale fire test results of building materials and consumer products
    • evaluating the performance and durability of protective clothing
    • heat and moisture transfer in air-to-air energy exchangers
    • modeling effects of fire on buildings and the environment
    • modeling heat transfer in thermal protective clothing and human skin

    2009-2010

    • correlating small and full-scale fire test results of building materials and consumer products
    • evaluating the performance and durability of protective clothing
    • heat and moisture transfer in air-to-air energy exchangers
    • modeling effects of fire on buildings and the environment
    • modeling heat transfer in thermal protective clothing and human skin

    2008-2009

    • correlating small and full-scale fire test results of building materials and consumer products
    • evaluating the performance and durability of protective clothing
    • heat and moisture transfer in air-to-air energy exchangers
    • modeling effects of fire on buildings and the environment
    • modeling heat transfer in thermal protective clothing and human skin

    2007-2008

    • correlating small and full-scale fire test results of building materials and consumer products
    • evaluating the performance and durability of protective clothing
    • heat and moisture transfer in air-to-air energy exchangers
    • modeling effects of fire on buildings and the environment
    • modeling heat transfer in thermal protective clothing and human skin