| 摘要 |
<p>A solar power generation system (1) comprises a solar concentrator (2) and a photovoltaic cell (4, 104, 204) at the focus of the solar concentrator (2). The system (1) also comprises a thermal receiver (6, 106, 206) adjacent to, but thermally isolated from, the photovoltaic cell (4, 104, 204). The thermal receiver (6, 106, 206) is arranged to be illuminated by solar radiation (8) incident upon the solar concentrator (2). The system (1) further comprises a first heat transfer mechanism (12, 112, 212) in good thermal contact with, and arranged to dissipate heat from, the photovoltaic cell (4, 104, 204). The system (1) further comprises a second heat transfer mechanism (14, 114, 214), independent of the first heat transfer mechanism (12, 112, 212) and in good thermal contact with, and arranged to dissipate heat from, the thermal receiver (6, 106, 206). The first (12, 112, 212) and second (14, 114, 214) heat transfer mechanisms may comprise a solid thermal conductor (a heat sink) or a heat pipe, connected to a heat exchanger (16, 18) to transfer heat to a working fluid (e.g. water). The working fluid may also be arranged simply to pass through the thermal receiver (6, 106, 206). The first (12, 112, 212) and second (14, 114, 214) heat transfer mechanisms may be separate from one another or the first (12, 112, 212) and second (14, 114, 214) heat transfer mechanisms may be in thermal contact with a common working fluid. The heated fluid can be used e.g. for heating, thermoelectricity generation or in cooling systems. The system (1) may also comprise one or more secondary solar concentrators (228) to further concentrate the incident solar radiation onto the photovoltaic cell (204) and/or the thermal receiver (206).</p> |
