| 摘要 |
<p>Solar energy is utilised by solar heat collectors which are filled with a low-volatile liq. such as FRIGEN 13 B1. This is heated by solar radiation to a temp. of 60 degrees C, producing a pressure of 35.3 kg/cm2. This pressure is allowed to expand in an expansion turbine or a cold gas turbine to a pressure 16.5 kg/cm2 at + 25 degrees C (under Central European conditions). The pressure relift is achieved by condensation in a suitable condenser. A feedwater pump conveys the liq. again from the condenser to the solar heat collector. The pressure differential from 35.3 kg/cm2 to 16.5 kg/cm2 is utilised in the turbine for the generation of electric power. As an alternative, a heat pump can be inserted in the circuit to reduce the temp. of condensation.</p> |
