Method for producing electric energy from solar energy, involves forming turbo-engine as modified scroll compressor, which rotates backwards and operates as expansion machine, brushless direct current motor and generator

摘要

The method involves liquefying cooled thermal fluid in a condenser (5) after flowing through a turbo-engine (3). The thermal fluid is fed through a pressure build-up unit (6) back to an evaporator (1), where the turbo-engine includes a generator (4), which generates electrical energy. The turbo-engine is formed as a modified scroll compressor, which rotates backwards and operates as an expansion machine, a brushless direct current (BLDC) motor and a generator. A controllable valve (2) is located with opening and closing of start of the expansion engine. The thermal fluid is selected from chlorofluorocarbons (CFC) and hydrofluorocarbon (HFC) refrigerants such as 1, 1, 1, 2-Tetrafluoroethane. An independent claim is also included for a device for producing electric energy from solar energy.