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Kalina process (geothermal)


Technology Description

Kalina cycle is one cycle option to use low-temperature geothermal resources, typically operating with temperatures varying from as low as 73°C to 180°C. The heat is recovered from the geothermal fluid using heat exchangers to vaporise a working fluid with a low boiling point (ammonia-water mixture) and drive a turbine.

Relevance for Net Zero

Enables the use of low-temperature heat sources, but deployment opportunities depend on local potential.

Key Countries

Germany, Iceland, Japan

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