The Blue Economy – Report to the Club of Rome 100 innovations – presented weekly over 2 years
Again more power for members of the Blue Economy Alliance to implement concrete projects.
Emily Cummins, a British Student, has built a refrigerator in a simple but ingenious way: It consists of two cylinders one inside the other, some filling material to fill the space between the inner and outer cylinder, and Water, not necessarily drinking water. If this devices is heated by the sun, then the water evaporates and cools down the inner cylinder, without any chemistry nor electricity. All building materials are available at any place of the world – a prime example for the principles of the Blue Economy.
A disadvantage of this refrigerator is that it only works with sufficient sunshine. This problem could be solved by integrating the light-based heaters developed at Las Gaviotas (see Case 15) into the construction. Visionaries ahead: Who will take the challenge?