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24 Volt AirCurtain Improving the cold chain during delivery to retailers

24 Volt AirCurtain Improving the cold chain during delivery to retailers. The Cold Chain. 5°C. 2°C. 13°C. 7°C. AIRFLOW GENERATED BY FRIDGE UNIT. VIEW FROM TOP. FR I DGE. VIEW FROM SIDE. FR I DGE. NORMAL TEST PROCEDURE.

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24 Volt AirCurtain Improving the cold chain during delivery to retailers

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  1. 24 Volt AirCurtainImproving the cold chain during delivery to retailers

  2. The Cold Chain

  3. 5°C

  4. 2°C 13°C 7°C

  5. AIRFLOW GENERATED BY FRIDGE UNIT VIEW FROM TOP FR I DGE VIEW FROM SIDE FR I DGE

  6. NORMAL TEST PROCEDURE • In order to have true comparative results, standard trucks with standard routes have to be compared • As can be seen from the data provided by a company in Israel improvement in NON-compliance show up very clearly • Furthermore, common practice (e.g. collecting return packaging (pallets, bins, containers)) influence the temperature profile

  7. Example from Israel

  8. DIRECT COMPARISION • A 15 meter trailer was loaded with pallet stacks (containing either 8 or 13 pallets; the pallets were wraped in plastic). • 14 temperature probes were placed within the pallet stacks, on top of pallets and one next to the door. The intention was to measure the temperature within product and on the surface. • Wooden pallets were used as the wood has a very good temerature storing capabilities, which would results in comparable results to chilled and frozen foods. • All data which was used to do the statistical comparision is marked with a grey background. • Temperature which were in the accpetable range(with AirCurtain 4 - 6˚C; without AirCurtain 5-7 ˚C) were marked in red and with a dotted background. • WITH AIRCURTAIN • The trailer was cooled down overnight to 5˚C • In the trial 3 unloading cycle of 25 min and inbetween 3 „drive times“ of 25 min were simulated. • WITHOUT AIRCURTAIN • The trailer was cooled down for 40 min; the average temperature achieved was 5.9˚C ; therefore the target temperature range was adjusted to 5-7 ˚C to be able to do a meaningful comparison. • In the trial 3 unloading cycle of 25 min and inbetween 3 „drive times“ of 25 min were simulated.

  9. Pallett stacks

  10. Temperatureprofile with AirCurtain

  11. Temperatureprofile without Aircurtain and without fridge unit

  12. RESULTS -1- • The graph shows the Temperature difference between probe 6 and the outside temperature. It shows very clearly that during the part with the Aircurtain, the increase in the temperature is significant lower X-axis : value 1 -37 with AirCurtain; Value 37-67 without Aircurtain Y-axis : temperature difference

  13. RESULTS -2- • The statistical evaluation of the trial is as follows: • WITH AIRCURTAIN • 338 DATA POINTS • 87 DATAPOINTS ARE OUTSIDE THE TARGET AREA • 74% ARE IN THE TARGET AREA • OHNE LUFTVORHANG • 351 DATA POINTS • 188 DATAPOINTS ARE OUTSIDE THE TARGET AREA • 46% ARE IN THE TARGET AREA FROM THESE TRIAL RESULTS IT CAN AS WELL BE EXTRAPOLATED THAT THE IMPROVEMENT WITH FROZEN/CHILLED FOOD WILL BE EVEN MORE SIGNIFICANT

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