Gelpacks - icepacks as thermal energy generators or thermal accumulators
Ice packs and gel packs are cooling elements which are used to bring extra temperature preservation in passive cooling applications and packaging. Ice packs and gel packs can be produced as a single use or a multiple use cooling element depending on the logistic process of the customer. Ice packs and gel packs gain their energy by the pre-cooling or pre-heating of the elements in a freezer or heating device. Ones the energy has been stored the ice packs or gel packs are placed with the temperature sensitive goods within the passive cooling or packaging. The temperature preservation of the ice packs of gel packs is depending on a number of variables as the consistence of the ice pack or gel pack, the mass of the temperature sensitive products, the outer temperatures, the time of transport, the insulation quality of the passive cooling or packaging, etc.
Mass adding or extra temperature cooling
When temperature sensitive products need to be extra cooled in order to keep the required temperature preservation the choice could be made to increase the thermal energy by enclosing cooled ice packs or gel packs within the passive cooling packaging or the choice could be made to increase the mass of the products, increasing the global thermal energy of the goods. Both are cooling techniques which can be used to increase the temperature preservation.
Nature friendly ice packs and gel packs
The company Krautz - Temax has started the production of special nature friendly ice packs and gel packs for single use passive cooling applications. To do this the packaging of the ice packs and gel packs is recyclable and the consistence of the fluids in the ice packs is nature friendly. The goal of nature friendly ice packs and gel packs is the easy waste management at the receiver of the temperature sensitive goods which where cooled with the ice-packs. As the receiver receives the goods, the ice packs or gel packs are not used again so they need to be destroyed. When the gel packs are nature friendly, the consistence of the ice pack can be used to water the plants for example while the package is recyclable so it can be placed with the standard waste.