Solar cooling

In countries that are hot and very sunny, a large proportion of the energy is employed for climatization and cooling. In some regions, 80% of the electricity is used for this purpose. There is enormous potential here for reducing costs and decreasing CO2 emissions.

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Solar energy can be converted not only into electricity, but, with the help of absorption chillers, also into cooling energy. This is particularly interesting for hot countries, because there the need for energy and the sunlight hours coincide.

Tried-and-tested cost effectiveness

The technology developed by SOLITEM for solar cooling is used in many projects. The team headed by the company founder Dr. Ahmet Lokurlu has succeeded in developing a plant concept that doubles the efficiency of conventional systems for solar cooling. This permits cost-effective operation.

Wide range of applications

SOLITEM technology works with multiple parabolic trough collectors that are connected in series. These concentrate the sunlight on an absorber tube through which a heat-conducting fluid flows. The heat, which is concentrated in this fluid, is converted to cooling energy in a steam-driven absorption chiller. A system of this type can be used both to operate air-conditioning systems, for example at airports, in hotels or in private and public buildings, and for refrigerating plants, for instance in the food industry. The process steam generated can also be used for industrial processes and warm water supply for heating purposes.

SOLITEM systems are operating for example in the Gebze Institute of High Technology, the Turkish Metro Group, and hotels like “Iberotel Sarigerme Park”. Since 2003 the hotel has effectively been cooled by the sun. And not only that: the collectors and the connected technology also produce steam for the laundry, supply the kitchen and hotel rooms with hot water and, in the winter, heat the rooms and the swimming pool. The highlight: they use 60 percent less energy than conventional systems.

Excellent idea

SOLITEM has already received several awards for its innovations: the Energy Globe Award, the European Solar Prize 2005 and the Global 100 Eco-Tech Award show that the experts are convinced by the SOLITEM technology.

  • SOLITEM : Unique technology

    SOLITEM GmbH develops technological systems for process heat applications and for air conditioning in buildings using solar-powered absorption chillers. Several plants are operating on a commercial basis in Turkey. Further plants are currently being constructed in UAE, Spain and Turkey. At present, no comparable or commercially feasible technology is available on the market.
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