The pump takes the cooling fluid at low pressure in a liquid state coming from the condenser
The fluid abandons the pump in a liquid state and at high pressure
The fluid abandons the evaporator at high pressure and after being heated, changes into the steam phase, thanks to the energy provided by the hot source. In this way, we have managed to transfer the waste energy from the process to the cooling fluid, which will be introduced to the screw expander.
As the fluid expands to high pressure and temperature, we generate mechanical work at the shaft, coupled to the electric generator. The cooling fluid gives up pressure and temperature during the expansion, but continues as steam, which means we have to insert it into the condenser in order to be able to change it into liquid and initiate the process again.