Dry ice and carbon dioxide are extensively used to refrigerate dairy, meat, frozen and other perishable food products during transportation. It is also used as a cooling agent in varied industrial processes such as the grinding of heat-sensitive materials, shrink fitting, and vacuum cold traps.
Using a cryogenic agent such as liquid nitrogen (LIN) or liquid carbon dioxide offers optimal safety for product quality during transportation for both fresh and deep frozen food.
We can provide both direct and indirect cooling systems. The flexibility of these systems offers the possibility to either cool trailers in total or trailers separated into different chambers or trolleys.
The benefits are obvious
- Fast and flexible
- Exact fixing of the temperature
- Inert atmosphere
- No CFCs
- Noiseless operation
- Low maintenance
- Low investment
Dry ice remains solid at temperatures down to -78 °C during transportation. An insulated container and a few kilos of dry ice will keep the temperature low for several days. We are pleased to offer a wide range of packaging solutions for you to choose from.
The cooling power in the tank is in the form of liquid carbon dioxide with a temperature of -45 °C, and does not have to be produced by an aggregate. An aggregate has limited capacity, but the capacity of a gas-based cooling system can easily be increased during times of peak load. Carbon dioxide cools the air in the vehicle via a heat exchanger and is then vented out through the top of the car. The system will use the warmed cooling water from the car engine to maintain the prescribed temperature in the chamber if needed. The system offers you full control of temperature conditions. As it is free of noise, a carbon dioxide-based cooling system offers great advantages for the environment in city areas, especially at night.
For the transportation of minor items, portable Styrofoam boxes can be used. The amount of dry ice needed is determined by the insulation of the box, the ambient temperature and the desired temperature of the goods. A rule of thumb is that one five-litre styrofoam box with 30 mm of insulation will require 8 kilos of dry ice to maintain a temperature of below -20 °C for 48 hours. A calculation formula can be found at Icebitzzz.
Carbon dioxide produced and delivered by AGA is captured from industrial processes normally venting out a carbon dioxide-rich off-gas.