| 摘要 |
<p>A power generation system is described, wherein a thermafly expandable fluid, e.g. R134a, CO is circulated in a loop between a first location and a second location, the second location being at a higher elevation than the first location. The fluid is heated at the first location to expand it, so that it rises to the second location where it is cooled and contracted. The cooled fluid, being denser, then falis back to the first bea tion under hydrostatic pressure, eausing a circular fluid flow. This flow is used to gen erate power in a power transfer system. The system is regulated 50 that the fluid does not flash to a vapour, i.e. the fluid does not change state, which improves the effi ciency of the system. The system is suitable for use in any situation where a height difference exists, and is particularly suited for geotherma heating sources.</p> |
