초록

A system for generating low temperature refrigeration for use such as cooling superconducting cable wherein a neon based refrigerant fluid is work expanded by a sealed turboexpander/loader to generate refrigeration which is used to cool heat transfer fluid for provision to the use point.

대표청구항 ▼

A system for generating low temperature refrigeration for use such as cooling superconducting cable wherein a neon based refrigerant fluid is work expanded by a sealed turboexpander/loader to generate refrigeration which is used to cool heat transfer fluid for provision to the use point. received b

A system for generating low temperature refrigeration for use such as cooling superconducting cable wherein a neon based refrigerant fluid is work expanded by a sealed turboexpander/loader to generate refrigeration which is used to cool heat transfer fluid for provision to the use point. received by the third heat exchanger and emitting a signal corresponding to the sensed temperature. 3. The apparatus of claim 2 wherein the controlling means further comprises: an actuator for receiving the signal from the sensor and moving a damper operably associated with the second inlet. 4. The apparatus of claim 1 further comprising: the heat sink fluid stream supplied from a geothermal source. 5. The apparatus of claim 4 further comprising: the geothermal source including an open loop geothermal circuit. 6. The apparatus of claim 5 further comprising: the heat sink circuit including a valve to close the heat sink circuit with respect to the geothermal source. 7. The apparatus of claim 4 further comprising: the geothermal source including a closed loop geothermal circuit. 8. An apparatus for removing moisture from air comprising: a refrigerant circuit including a first heat exchanger, a second heat exchanger, and a refrigerant stream movable along a first path between the first and second heat exchangers, the first heat exchanger operable in a first mode to transfer heat from the refrigerant stream to increase a temperature of an air stream flowing relative to the first heat exchanger; a heat sink circuit including the second heat exchanger, a third heat exchanger, and a heat sink fluid stream movable along a second path from the second heat exchanger to the third heat exchanger, the second heat exchanger operable when in a first mode to transfer heat from the heat sink fluid stream to the refrigerant stream and for decreasing a temperature of the heat sink fluid stream, the third heat exchanger operable to receive the heat sink fluid stream from the second heat exchanger to transfer heat from the air stream adjacent the third heat exchanger to the heat sink fluid stream to condense water vapor in the air on the third heat exchanger, the third heat exchanger positioned upstream with respect to the air stream through the first heat exchanger when operating in the first mode; and means for mixing the heat sink fluid stream with glycol prior to the heat sink fluid stream entering the heat sink circuit, said heat sink circuit further comprising a fourth heat exchanger for exchanging heat between the heat sink fluid and water directed to the fourth heat exchanger from a pool; and a valve for directing the heat sink fluid stream to one of the third heat exchanger and the fourth heat exchanger. 9. The apparatus of claim 1 further comprising: the refrigerant circuit including a fifth heat exchanger and operable in a second mode to transfer heat from the refrigerant stream to increase the temperature of a second heat sink fluid stream flowing relative to the fifth heat exchanger. 10. An apparatus for removing moisture from air comprising: a refrigerant circuit including a first heat exchanger, a second heat exchanger, and a refrigerant stream movable along a first path between the first and second heat exchangers, the first heat exchanger operable in a first mode to transfer heat from the refrigerant stream to increase a temperature of an air stream flowing relative to the first heat exchanger; a heat sink circuit including the second heat exchanger, a third heat exchanger, and a heat sink fluid stream movable along a second path from the second heat exchanger to the third heat exchanger, the second heat exchanger operable when in a first mode to transfer heat to the refrigerant stream from the heat sink fluid stream and decrease a temperature of the heat sink fluid stream, the third heat exchanger operable to receive the heat sink fluid stream from the second heat exchanger to transfer heat from the air stream adjacent the third heat exchanger to the heat sink fluid stream and remove water vapor from the air stream adjacent the third heat exchanger; a conduit including an inlet and an outlet for the air stream, the third heat exchanger positionable in the conduit downstream of the