Research Areas:

Biofuels
Food processing
Postharvest biology and technology

Expertises:

Computational fluid dynamics
Heat and mass transfer for agricultural applications
Instrumentation and controls
Waste management

Affiliations:

• American Society of Agricultural and Biological Engineers (ASABE)
• The Canadian Society for Bioengineering (CSBE)

Current Research Projects and Interests:

• Use of biofuels in energy intensive agricultural applications
• Evaluation of biomass crops as an industrial energy source
• Modeling heat transfer through lettuce
• Health and environmental aspects of farming
• Manure Spreader Calibration - Software Development

Past Research Projects:

• Modeling modified atmosphere packaging for fruits and vegetables
  
  
  

Bibliography:

Book Chapters:

• Rennie, T.J., C. Vigneault, J.R. DeEll, and G.S.V. Raghavan, 2003. Chapter 18: Cooling and Storage (pages 505-538) In: Handbook of Postharvest Technology (eds. Chakraverty, Mujumdar, Raghavan, and Ramaswamy), Marcel Dekker, Inc., New York, 884 pp.

Publications:

• Rennie, T.J., and S. Tavoularis. 2009. Perforation-mediated modified atmosphere packaging. Part I. Development of a mathematical model. Postharvest Biology and Technology , Vol. 51: 1-9.
  
  
• Rennie, T.J., and S. Tavoularis. 2009. Perforation-mediated modified atmosphere packaging. Part II. Implementation and numerical solution of a mathematical model. Postharvest Biology and Technology , Vol. 51: 10-20.
  
  
• Vigneault, C., Rennie, T.J., and V. Toussaint. 2008. Cooling of freshly cut and freshly harvested fruits and vegetables. Stewart Postharvest Review , Vol. 4(3): 1-10.
  
  
• Rennie, T.J., and G.S.V. Raghavan. 2007. Thermally dependent viscosity and non-Newtonian flow in a double-pipe helical heat exchanger. Applied Thermal Engineering, Vol. 27(5-6): 862-868.
  
  
• Rennie, T.J., and G.S.V. Raghavan. 2006. Effect of fluid properties on the heat transfer characteristics in a double-pipe helical heat exchanger. International Journal of Thermal Sciences, Vol. 45(12): 1158-1165.
  
  
• Rennie, T.J. 2006. Vacuum cooling for the fruit and vegetable industry. Stewart Postharvest Review, Vol. 2(1:7): 1-7.
  
  
• Rennie, T.J., and G.S.V. Raghavan. 2005. Numerical studies of a double-pipe helical heat exchanger. Applied Thermal Engineering, Vol. 26(11-12):1266-1273.
  
  
• Raghavan, G.S.V., T.J. Rennie, P.S. Sunjka, V. Orsat, W. Phaphuangwittayakul, and P. Terdtoon. 2005. Overview of new technologies for drying biological materials with emphasis on energy aspects. Brazilian Journal of Chemical Engineering, Vol. 22(2): 195-20.
  
  
• Rennie, T.J., and G.S.V. Raghavan. 2005. Experimental studies of a double-pipe helical heat exchanger. Experimental Thermal and Fluid Science, Vol. 29(8):919-924.
  
  
• Sunjka, P.S., T.J. Rennie, C. Beaudry, and G.S.V. Raghavan. 2004. Microwave-convective and microwave-vacuum drying of cranberries: a comparative study. Drying Technology, Vol. 22(5):1217-1232.
  
  
• Beaudry, C., G.S.V. Raghavan, C. Ratti, and T.J. Rennie. 2004. Effect of four drying methods on the quality of osmotically dehydrated cranberries. Drying Technology, Vol. 22(3):521-539.
  
  
• D.G. Prabhanjan, T.J. Rennie, and G.S.V. Raghavan. 2004. Natural convection heat transfer from helical coiled tubes. International Journal of Thermal Sciences, Vol. 43(4):359-365.
  
  
• Beaudry, C, G.S.V. Raghavan, and T.J. Rennie. 2003. Microwave finish drying of osmotically dehydrated cranberries. Drying Technology, Vol. 21(9): 1797-1810.
  
  
• Markarian, N.R., C. Vigneault, Y. Gariépy, and T.J. Rennie. 2003. Computerized monitoring and control for a research controlled-atmosphere storage facility. Computers and Electronics in Agriculture, Vol. 39(1):23-37.
  
  
• Prabhanjan, D.G., G.S.V. Raghavan, and T.J. Rennie. 2002. Comparison of heat transfer rates between a straight tube heat exchanger and a helically coiled heat exchanger. International Communications in Heat and Mass Transfer, Vol. 29(2):185-191.
  
  
• Rennie, T.J., C. Vigneault, G.S.V. Raghavan, and J.R. DeEll. 2001. Effects of pressure reduction rate on vacuum cooled lettuce quality during storage. Canadian Biosystems Engineering, Vol. 43(3):39-43.
  
  
• Rennie, T.J., G.S.V. Raghavan, C. Vigneault, and Y. Gariépy. 2001. Vacuum cooling of lettuce with various rates of pressure reduction. Transactions of the ASAE, Vol. 44(1):89-93.
  
  
• DeEll, J.R., Vigneault, C., Favre, F., Rennie, T.J., and S. Khanizadeh. 2000. Vacuum cooling and storage temperature influence the quality of stored mung bean sprouts. HortScience, 35(5):891-893.
  
  
• Rennie, T.J., Raghavan, G.S.V., and C. Vigneault. 2000. Determination of the product refrigeration load in vacuum cooling of lettuce. Applied Engineering in Agriculture, Vol. 16(5):459-464.