| 摘要 |
The apparatus comprises a conical or part conical structure having an infra red absorbing insolation surface 20 trapping and re-radiating solar energy to heat gas 11 either inside the insolation surface or inside a transparent exterior 10 causing the gas to rise past one or more vertical axis turbines 5 atop the cone. Spiral or helical 17 structures may cause rising gas rotation. Heat transfer medium may pass through the surface and spiral to transfer heat between them and storage to mitigate solar variation or an auxiliary heat source e.g. geothermal. A nearby reflector may augment solar input. The turbines may also be wind turned and may either rotate independently or may rotate on a carousel 16 about the cone axis and a common output shaft 9, each turbine shaft driving an over-running pinion against a cone mounted gear ring. May be ground or water float mounted, stacked (Fig. 11) or built into a building (Fig. 13). May be arranged in a closed gas circuit (Fig.12) where post turbine gas is returned to the cone base via a heat exchanger. |
