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Thermal conditions within B-train trailers transporting broiler chickens in Western Canada

Thermal conditions within B-train trailers transporting broiler chickens in Western Canada. Presented at the ATA 36 th Annual Conference May 10, 2010 Fort Lauderdale, FL Natasha Burlinguette. Poultry Transport Team. N.A. Burlinguette 1 , M.L. Strawford 1 , J.M. Watts 1 ,

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Thermal conditions within B-train trailers transporting broiler chickens in Western Canada

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  1. Thermal conditions within B-train trailers transporting broiler chickens in Western Canada Presented at the ATA 36th Annual Conference May 10, 2010 Fort Lauderdale, FL Natasha Burlinguette

  2. Poultry Transport Team N.A. Burlinguette1, M.L. Strawford1, J.M. Watts1, K.P.C. Hui1, T.G. Crowe1, H.L. Classen2, P.J. Shand3 1Department of Agricultural & Bioresource Engineering 2Department of Animal & Poultry Science 3Department of Food & Bioproduct Sciences

  3. Today’s presentation... • Western Canadian conditions • B-train trailer • Research objectives • Data collection & analysis methods • Temperature profiles • Conclusions

  4. Western Canada Saskatchewan Climate* Winter Lows -24 to -20˚C Summer Highs > 25˚C Summer Lows 11 to 15˚C *Source: National Resources Canada www.nrcan.gc.ca

  5. Transport Distances

  6. B-Train 8820 broilers / load Module (12 or 15 drawers ea.) Drawer

  7. Tailboard Bungee Strap Tarp Strap

  8. Travel Direction

  9. Negative Pressure (suction) Positive Pressure + -

  10. Research Objective To characterise temperature distributions in B-train trailers transporting broiler chickens in Western Canada

  11. Data Collection • 14 B-trains • 1-minute interval temperature recordings • Ambient -24˚C to +14˚C (night transport only)

  12. Analysis • Identified “steady-state” conditions for each B-train • Calculated ΔT = (Ttrailer – Tambient) • Grouped the data; calculated meanΔT • Created 3-D thermal plots • Identified portions of the load experiencing a specified temperature lift

  13. Travel Direction Data Groupings Tarp & Vent Configurations

  14. Ambient T (avg) = -22.1˚C (-24 to -21˚C) d-d-1F Trailer Temp. min = -21˚C max = 22˚C avg = -2 ˚C ΔTMAX = 44 ˚C ΔTAVG = 20˚C Passenger side 1F Midline Driver side

  15. Ambient T (avg) = -3.5˚C (-10 to 6˚C) d-d-all Trailer Temp. min = -1˚C max = 24˚C avg = 10 ˚C ΔTMAX = 28˚C ΔTAVG = 13˚C Passenger side Midline Driver side

  16. Ambient T (avg) = 9.8˚C (8 to 11˚C) u-u-all Trailer Temp. min = 10˚C max = 17˚C avg = 13 ˚C ΔTMAX = 7˚C ΔTAVG = 3˚C Passenger side Midline Driver side

  17. open closed Rear Trailer ProfilesΔT X (-22.1˚C) % of Load Degrees Celsius warmer than Ambient

  18. Lead Trailer ProfilesΔT (-22.1˚C) open closed % of Load Degrees Celsius warmer than Ambient

  19. Conclusions • ΔT profiles for 5 common B-train configurations • Relative warm and cool zones (tarps down) Warm: midline – front of LEAD & back of REAR Cool: exterior – back of LEAD & front of REAR • Wider temperature gradients & larger ΔT observed when trailer more tightly closed ΔTMAX = 44˚C (d-d-1F) • Near uniform temperatures when trailer open ΔTMAX = 7˚C (u-u-all)

  20. Trever Crowe (Ph.D., P.Eng.)Email: trever.crowe@usask.ca

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