Points saillants de ICCC2016: le vieillissement de l'isolation des camions frigorifiques (en anglais)

Ce résumé se réfère à une communication présentée pendant la conférence internationale de l'IIF sur la chaîne du froid (ICCC2016) qui s'est tenue en Nouvelle Zélande. Celle-ci peut être téléchargée depuis la base de données Fridoc en utilisant le lien fourni à la fin de l'article.
The insulation of refrigerated trucks is characterized by a heat transfer coefficient, also called K coefficient. The K value is determined according to the international agreement for transport of perishable food (ATP) protocol.
The insulation is decreasing during the lifetime of the equipment and the K value is increasing. This ageing depends on several criteria such as the level of maintenance by the owner and the temperature of the transported product.
The French regulation, like Italian or Spanish ones, requires a K-value test for all the ATP equipment after 12 years to renew their ATP certificate.

The analysis of 110 K-value tests of in-service refrigerated transport equipment made by Cemafroid shows that it is possible to evaluate the ageing of the insulation of the bodies.
It underlines that after 12 years, all the tested pieces of equipment are still compliant with ATP with K-values far under 0.7 W/m2.K. Moreover it shows that nearly 30% of the tested pieces of equipment have still a reinforced insulation (K lower than 0.4W/m2.K).

The authors conclude that it should be necessary to conduct a global statistical analysis of the thousands of figures available in the ATP tests stations and to measure the K-value ageing at least all over the 6 first years of life of an equipment.

Cavalier G et al.Ageing of refrigerated truck insulation.

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