| 摘要 |
<p>Energy conversion system for converting solar energy to rotational energy comprising a solar energy collecting device adapted to concentrate solar energy to heat gases in a heat exchange means (102-110), a gas turbine comprising an air inlet (116), a compressor (100), an expansion chamber, and at least one turbine (112) rotatable by expanding gases leaving the expansion chamber, in which the expansion chamber is formed at least in part by the heat exchange means (110) and compressed air from the compressor (100) is supplied to the heat exchange means (102-110) and the heated air from the heat exchanger means is supplied to the inlet to the turbine (112). The heat exchange means raises the temperature of the compressed air to in excess of 800 °C. The heat exchange means may comprise first (104-108) and second (102) heat exchangers, one heat exchanger (104-108) being heated by solar energy and a second heat exchanger (102), beyond the turbine, to recover latent heat in the air leaving the turbine (112). The second heat exchanger (102) serves to heat air from the compressor (100) before it is supplied to the inlet of the solar energy heated exchanger (104), the second heat exchanger (102) therefore comprising a pre-heater for the air. The turbine may be mounted at the upper end of an arm which is mounted at the upper end of a fixed column so as to be rotatable and adjustable in inclination relative thereto (figure 19). The turbine may be arranged to drive an electrical generating machine.</p> |
