Device for utlilizing geothermal heat and method for operating the same
AssigneeKlett-Ingenieur-GmbH
InventorJochen Hamann
Life of this patent
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Abstract
An apparatus and a method for using geothermal energy include the use of at least a first conduit, through which a working substance is carried downward into the interior of the Earth, at least one second conduit, through which the working substance is carried upward, in the direction of the surface of the Earth, with the first and second conduits form a closed system relative to the soil, wherein the working substance is carried downward into the interior of the Earth, and the throttling region throttles the largely liquid working substance upstream, in the flow direction, of the throttling region to a vaporization pressure, so that downstream of the throttling region the working substance is largely completely vaporizable.
Claims20
An apparatus for using geothermal energy and for recovering energy, comprising at least a first conduit through which a working substance is carried downwards into an interior of the Earth into a deep hole, at least one second conduit through which the working substance is carried upwards in a direction of a surface of the Earth, said first and second conduits forming a closed system relative to a soil;
- at least one throttling region through which the working substance is carried downwards into the interior of the Earth, so that the working substance is also in heat exchange with its surroundings as it is being carried downwards, said throttling region throttling the working substance which is substantially a liquid working substance upstream in a flow direction of said throttling region to a vaporization pressure, so that downstream of said throttling region the working substance is substantially completely vaporizable.
A method of operating an apparatus comprising at least a first conduit through which a working substance is carried downwards into an interior of the Earth into a deep hole, at least one second conduit through which the working substance is carried upwards in a direction of a surface of the Earth, said first and second conduits forming a closed system relative to a soil;
- at least one throttling region through which the working substance is carried downwards into the interior of the Earth, so that the working substance is also in heat exchange with its surroundings as it is being carried downwards, said throttling region throttling the working substance which is substantially a liquid working substance upstream in a flow direction of said throttling region to a vaporization pressure, so that downstream of said throttling region the working substance is substantially completely vaporizable, the method comprising the steps of throttling the working substance which in a first region of the first conduit is substantially liquid, in a second region to a vaporization pressure;
- subsequently vaporizing the working substance substantially completely;
- and carrying it in a vapor state upwards in the second conduit.
Dependencies are inferred from the claim text.