Monday, December 5, 2011

No. 26: Japanese solar thermal generation technology goes to Italy (December 6, 2011)

ChiyodaCorp. will construct a pilot plant for the solar thermal generation project that uses high-temperature molten salt for heat conducting fluid in alliance with Archimede Solar Energy (ASE) of Italy. The pilot plant will be constructed inside Archmiede’s premises northeast of Rome toward August 2012. The output is scheduled to be about 200 kW. In Italy, a demonstration plant is operating in Sicilia under the initiative of an Italian electric power company. Because it is colder in Rome than in Sicilia, Chiyoda wishes to appeal its technology to collect heat required for generation if sunlight is available even in a severe environment, and test the heat collection system and the functionality of the plant. 

Unlike the conventional system that uses synthetic oil for heat medium, the new plant can be operated by increasing the temperature of the heat medium to about 150 degrees centigrade, making it possible to increase generation efficiency, simplify equipment, and reduce investment. Italy plans to construct multiple solar thermal generation plants of the high-temperature molten salt type with an output of more than 10 kW. Chiyoda concluded an agreement with ASE that has the manufacturing technology of heat collection pipes necessary to use high-temperature molten salt for heat medium in June 2011.

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