SolarDeSy - solar desalination system with cascading evaporation

  • Rudolf Kraft (Speaker)

Activity: Talk or presentationOral presentation


Motivation: In the last few decades there has been a continuous decrease in rainfall in the Mediterranean region. Reservoirs are drying out, the groundwater near the sea is getting salty, and water must be delivered with ships and tank wagons. Near Iskele, about 20 km away from Famagusta, a pilot plant with 3 modules for sea water desalination will be installed with an Austrian consortium of partners and the scientific support of EMU in May 2010. The plant should demonstrate the possibility for a low cost system to supply a family with enough water and is powered with renewable energy of the sun. The desalination process was developed and designed at the Upper Austria University of Applied Sciences. Results: The first designed prototype of one SolarDeSy module consists of a two square meter solar air collector. The cascade evaporation system and the condenser are combined in a box and each has a surface area of one square meter and a height of about 0.5. A schematic diagram of the SolarDeSy module can be seen in (a). Solar electricity of a PV-module powers a fan to push ambient air into the thermal air-collector. The hot air, about 80°C, increases the evaporation effect (b) in the cascade evaporator. The computational fluid dynamics is used to optimize the geometric parameters of the plant process and indicates a humidity value of over 90% and an evaporation rate of more than 3 liters per hour at midday.
Period15 Sept 2010
Event titleICCE 2010
Event typeConference
LocationCyprus, Famagusta, CyprusShow on map