Intermodal refrigerated containers have extruded aluminium T-bar floors to facilitate air circulation requiredfor maintaining cargo temperature. Whilst the primary design of such containers is to maintain temperaturetypically over periods of a few weeks, as a cargo is taken from the point of origin to the seller, it is found thatmany alternative uses are employed by companies across the globe. In some regions containers are used asshort-term storage which sees them subjected to loading and unloading many more times than an averagecontainer. Under these conditions, T-bar floor failure is not uncommon and is prohibitively expensive torepair. Adding a cheap protecting material which can be replaced quickly, cost effectively and which doesn’timpair temperature management when stowed is regarded as the best solution.Data is presented on plywood protection fitted to two standard ISO 1AAA (12.2m insulated) containerrefrigeration systems. Comparison is made with two standard systems showing how the modification affectsthe operation of the refrigeration system and its ability to cool a warm-loaded cargo and then maintaintemperature.
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