A METHOD FOR EXCHANGING HEAT BETWEEN A HEAT EXCHANGE FLUID AND A PERISHABLE PRODUCT FLUID, A REMOVABLE HEAT EXCHANGE CARTRIDGE AND A HEAT EXCHANGE SYSTEM

摘要

The current invention is related to a method for exchanging heat between a heat exchange fluid and a perishable product fluid, the method comprising: providing the heat exchange fluid to an enclosure of a heat exchanger at a first temperature; providing the perishable product fluid to a tube in the enclosure; exchanging heat between the heat exchange fluid at the first temperature in the enclosure and the perishable product fluid in the tube; interrupting providing the perishable product fluid to the tube; changing the heat exchange fluid at a first temperature to a heat exchange fluid at a second temperature different from the first temperature; providing the heat exchange fluid at a second temperature to the enclosure; and exchanging heat between the heat exchange fluid at the second temperature in the enclosure and the product fluid in the tube. The invention is further related to a removable heat exchange cartridge for providing a temperature controlled perishable product fluid for use in the above mentioned method and to a heat exchange system comprising a base unit and such a removable heat exchange cartridge, wherein the base unit comprises a base unit heat exchange outlet to engage with the heat exchange inlet of the heat exchange cartridge and a base unit heat exchange inlet to engage with the heat exchange outlet of the heat exchange cartridge to provide heat exchange fluid to the enclosure.