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Eutectic Systems

Kooltube

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The Kooltube is a holdover or latent heat storage system. The completed unit comprises a 220V single phase or 380v 3 phase condensing set coupled to eutectic beams mounted internally to the roof of the body. Externally, to the uninitiated, the system appears to be a normal overcab refrigeration unit as the condensing set is conventionally mounted above the cab of the truck. The Kooltube is one of the simplest refrigeration systems and has been around in its basic configuration for many years. Simply, it can be compared to a block of ice in a glass of water or to the freezer pack, which you freeze in your fridge at home and put into a cooler box to keep drinks cold.

The tubes/eutectic beams perform the same function as the block of ice or freezer pack, while the condenser replaces your domestic fridge. The system is plugged into an electrical supply until the tubes are properly frozen, unplugged and then the vehicle used for its delivery round. Given the duty, which the vehicle has to perform, we calculate the number of tubes required to maintain the required box temperature and select a condensing set capable of freezing the beams in the required time. The Kooltube System is particularly suited to repetitive, daily delivery operations.