Nieuws: ‘Green ice’ increases food safety
Best before, when stored in a cool place… This probably sounds familiar!
Keeping food stored in a cool space extends the shelf-life and increases food safety. But how do you go about this when you don’t have a socket at your disposal, a reality in many parts of Africa. You could for instance use an environment friendly method to turn solar energy into ice!
This is why Emergi turned to TEKLAB with their idea for a freezer (Fr-ease). TEKLAB helped Emergi to improve the installation of their freezer and to materialise and produce parts in order to realize a number of working Fr-ease prototypes. These parts have been shipped to Ivory Coast for assembly.
The Fr-ease system consists of a collector which is filled with activated carbon en methanol. By heating in the sun the methanol evaporates and the gas that is formed cools in the condenser after which it is then stored in a storage bin (the evaporator). The evaporator has been placed into an insulated box. When the system cools down at night, the methanol evaporates in the evaporator which makes the temperature in the freezer drop dramatically and this turns the water in the freezer into ice. The methanol then gets absorbed by the activated carbon, only to make the system ready to start the cycle again the following day.
With the Fr-ease in 8 hours time about 5 kilos of ice can be produced. This ice can be used to cool food such as meat and fish. It also opens up new economical opportunities for the local market. Products spoil less quickly, so market vendors can increase their revenue.
We are proud to tell you that the first batch has now been assembled by the construction company, helped by students from the local university. In the coming period the units will be put to use and will be tested.
Do you want to prevent your idea from passing its sell-by date? Contact us on 023-5296021 or send us an email.