A solar chimney includes an elongated chamber having the general configuration of an hourglass. The chamber includes one or more heat exchangers for heating air in the chamber by solar energy. A turbine in the chamber is driven by updrafts of air created in the chamber, and the turbine drives an ele
A solar chimney includes an elongated chamber having the general configuration of an hourglass. The chamber includes one or more heat exchangers for heating air in the chamber by solar energy. A turbine in the chamber is driven by updrafts of air created in the chamber, and the turbine drives an electric generator or other machine. An exhaust wind turbine assists in the production of such updrafts. A vertical axis wind turbine harnesses energy of wind in the environment of the chimney, and such energy is used to drive the exhaust wind turbine. Excess wind energy is stored for later use. A set of extendable and retractable vanes, mounted externally of the chimney, deflects wind, in the environment of the chimney, towards the vertical axis wind turbine.
대표청구항▼
1. A solar chimney, comprising: a) an elongated chamber having an inlet and an outlet, the elongated chamber defining a path for air flow from the inlet to the outlet, wherein air can flow into the elongated chamber only at the inlet, b) the elongated chamber having a first area from the inlet to a
1. A solar chimney, comprising: a) an elongated chamber having an inlet and an outlet, the elongated chamber defining a path for air flow from the inlet to the outlet, wherein air can flow into the elongated chamber only at the inlet, b) the elongated chamber having a first area from the inlet to a throat portion of the elongated chamber; the first area having a diameter which decreases from the inlet to the throat portion, and wherein the elongated chamber has a second area having a diameter which increases from the throat portion to the outlet,c) means for heating air being positioned in the second area,d) a conventional non-solar heating means positioned downstream of the first area, wherein the elongated chamber lacks any means for admitting solar energy into the first area, and all solar heating of air occurs downstream of the first area, ande) an exhaust wind turbine, positioned at overhead of the outlet, for providing suction in a direction which tends to draw air in the elongated chamber towards the outlet. 2. The solar chimney of claim 1, further comprising a vertical axis wind turbine, the vertical axis wind turbine being mounted at the overhead of the outlet of the elongated chamber around the exhaust wind turbine, and being mounted to rotate relative to the elongated chamber. 3. The solar chimney of claim 2, further comprising a plurality of first vanes, mounted to the solar chimney, the first vanes being extendable and retractable, wherein the first vanes, in their extended positions, comprise means for deflecting air towards the vertical axis wind turbine. 4. The solar chimney of claim 1, further comprising a wind turbine disposed inside the first area of the elongated chamber, the wind turbine being connected to an electric generator, wherein rotation of the wind turbine generates electric power. 5. The solar chimney of claim 1, wherein the means for heating comprises a solar collector and a heat exchanger, the heat exchanger being disposed within the elongated chamber so as to heat surrounding air. 6. The solar chimney of claim 5, wherein the solar collector is located outside the chimney, and wherein the solar collector is connected to transfer heat to the heat exchanger. 7. A solar chimney, comprising: a) an elongated chamber having an inlet end and an outlet end, wherein the elongated chamber has a general configuration of an hourglass, the elongated chamber having a first area from the inlet end to a throat portion of the elongated chamber; and a second area from the throat portion to the outlet end,wherein the elongated chamber defines a path for air flow from the inlet end to the outlet end, wherein air can flow into the elongated chamber only at the inlet end,b) a turbine disposed within the elongated chamber, the turbine being connected to an electric generator, wherein rotation of the turbine by air flowing in the elongated chamber causes the generator to produce electric power,c) means for heating air being located in the second area of the elongated chamber, andd) a conventional non-solar heating means positioned in the elongated chamber, downstream of the first area, wherein the elongated chamber lacks any means for admitting solar energy into the first area, wherein all solar heating of air occurs downstream of the first area. 8. The solar chimney of claim 7, further comprising an exhaust wind turbine, the exhaust wind turbine being positioned at overhead of the outlet end and comprising means for drawing air from the inlet end to the outlet end. 9. The solar chimney of claim 8, further comprising a vertical axis wind turbine, the vertical axis wind turbine comprising means for capturing energy from wind in an environment outside the elongated chamber, and means for storing such wind energy.
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