Air cooling based on ancient technology.

by The REJIGIT Blog

Yael Issacharov is an Israeli industrial designer. She graduated with honours from Holon Institute of Technology in Israel, majoring in industrial design.

Staying cool in summer is always a challenge and especially at the moment with international gas and electricity prices going through the roof. Yael has developed non-electricity technology which will cool interior spaces without the need for customary air-con. A bonus is the total absence of environmental impact.

The innovative system is called Nave, and it is constructed using terracotta tiles. When combined with water flow, they work together to cool spaces in a building. As the water moves through the terracotta, it becomes vapour when it collides with the heat of the surrounding air. The heat is absorbed, cooling the water in the system and thus the surrounding air in the room becomes cooler.

The Nave technology includes formulations to calculate the surface area of terracotta material required for a given area and to determine water flows and control of the irrigation system. Shapes and sizes are adjustable according to the space to be cooled. The units can be free-standing or mountable.

Nave comes in three different versions: wall tiles, partitions and a vertical heat sink or totem and by employing sufficient Nave tiles, it is possible to maintain even a large interior area at a temperature of approximately 77°F / 25°C and humidity at 30-50%

The Nave system was inspired by the ancient Palestinian jarrah which dates to biblical times and uses water and natural evaporation to reduce water temperature in terracotta pots.