摘要:
A process for producing power including injecting a first heat transfer fluid through an injection well to a geothermally-heated formation that contains a second heat transfer fluid. The first heat transfer fluid may then be heated via indirect heat exchange in an interwell run fluidly connected to the injection well and disposed within the geothermally-heated formation. The heated first heat transfer fluid may then be recovered through a production well fluidly connected to the interwell run. Thermal energy contained in the recovered heated first heat transfer fluid may then be converted in a power production unit fluidly connected to the injection well and the production well. The interwell run, in some embodiments, may include multiple heat exchange tubes disposed within a perforated casing or drill pipe.
摘要:
A horizontal ground-coupled heat exchanger for a geothermal system. The underground portion of the system includes; at least one conduit located in the soil below its frost line containing a heat transfer liquid; at least one stratum between the at least one conduit and the soil, totally disposed beneath the surface of the soil at a depth from the surface of the soil of 1.2-3 m and completely separated from the soil by at least two layers of a thin thermo-conductive waterproof material, the at least one stratum containing heat conductive water saturated fill material with the at least one conduit being disposed therein; and a means to compensate for small leaks of water from the at least one stratum. The size of the smallest dimension of the stratum per conduit is determined; the sizing is based on a user selected stratum efficiency parameter employing a relation provided herein.
摘要:
A hybrid geothermal power system is discussed. The system includes a geothermal system including power plant (101) and pumping station (102) and a nuclear plant (103). Pumping station (102) is used to inject fluid from reservoir (104) through an injection well (105) into the bedrock (106) (also referred to as the hot dry rock HDR zone) and extracted via a secondary bore (extraction well) usually coupled to the power plant (101). In the present example however the injection well is linked to the extraction well (107). As fluid is injected into the bedrock a drop in temperature occurs due to heat transfer to the fluid. Nuclear plant (103) is utilized to combat this drop, the plant (103) has the fissionable components (1091, 1092, 1093) of the reactor positioned within bores (1081, 1082, 1083) within the HDR zone.
摘要:
A heat is taken from a photovoltaic panel (1) using air that flows through the photovoltaic panel (1) unit with an air cooler (2). The unit has an air intake opening (3) and an outtake vent (4) and the air flow is enforced by a natural draft of a chimney (5), to which the photovoltaic panel (1) unit is connected to. At least a part of the chimney (5) is exposed to solar radiation. Outtake vents (4) of several photovoltaic panel (1) units can lead to one chimney (5), preferably through thermal collectors (6) and piping. The air in the chimney is warmed up by solar radiation, the air ascends towards the chimney (5) mouth and the chimney (5) natural draft created in this way enforces air flow within the photovoltaic panel (1) unit. Even the air cooler (2) of the sucked air can form part of the system—preferably in the form of a ground-coupled heat exchanger (9). The chimney (5) can be equipped with heat-absorbing surface and it can also have a supporting wind device transforming wind energy into a natural draft within the chimney (5).
摘要:
The disclosure describes trench-confirmable geothermal reservoirs that can snugly abut trench walls (that may be of virgin, compacted earth) for facilitating heat exchange and flow liquid from one lower end to an opposing top end, and vice versa, depending on desired heat exchange. The direction can be reversed for summer and winter heat/cooling configurations. A series of the reservoirs may be used for appropriate heat transfer. The water volume of the reservoirs is relatively large and slow moving for good earth heat conduction.
摘要:
Apparatus and method transfer heat between a geothermal mass and a geothermal heat exchange unit embedded within the geothermal mass, utilizing a geothermal heat exchange system comprised of the heat exchange unit. The unit includes a chamber enclosed by plate-like walls presenting a very large heat transfer area. The walls are spaced apart by a small distance compared to the heat transfer area, configuring the chamber to contain a thin, film-like volume of a liquid heat exchange medium. The heat exchange medium is flowed into and out of the chamber at a prescribed rate of flow, and the capacity of the chamber is such that the volume of heat exchange medium contained within the chamber during operation of the geothermal heat exchange system is great enough to enable the flowing heat exchange medium to mix with static, dwelled heat exchange medium maintained within the chamber as heat exchange medium flows through the chamber at the prescribed rate of flow and is circulated in the system.
摘要:
A hybrid geothermal power system is discussed. The system includes a geothermal system including power plant (101) and pumping station (102) and a nuclear plant (103). Pumping station (102) is used to inject fluid from reservoir (104) through an injection well (105) into the bedrock (106) (also referred to as the hot dry rock HDR zone) and extracted via a secondary bore (extraction well) usually coupled to the power plant (101). In the present example however the injection well is linked to the extraction well (107). As fluid is injected into the bedrock a drop in temperature occurs due to heat transfer to the fluid. Nuclear plant (103) is utilized to combat this drop, the plant (103) has the fissionable components (1091, 1092, 1093) of the reactor positioned within bores (1081, 1082, 1083) within the HDR zone.
摘要:
The disclosure describes trench-confirmable geothermal reservoirs that can snugly abut trench walls (that may be of virgin, compacted earth) for facilitating heat exchange and flow liquid from one lower end to an opposing top end, and vice versa, depending on desired heat exchange. The direction can be reversed for summer and winter heat/cooling configurations. A series of the reservoirs may be used for appropriate heat transfer. The water volume of the reservoirs is relatively large and slow moving for good earth heat conduction.
摘要:
A support member for a man-made structure, such as a roadway, building, runway, bridge, includes a poured filler and at least two hollow rebars embedded within the filler displacing a volume of filler equal to the volume of the embedded rebars, a first hollow rebar being a inward flow geothermal above ground loop segment, and a second hollow rebar being an outward flow geothermal above ground loop segment, the two hollow rebars being connected to each other by a hollow connector to establish a geothermal above ground loop, the rebars having structural design support sufficient to support load in excess of displaced filler.
摘要:
A thermal energy system adapted to be coupled to a building energy system which selectively provides heating and/or cooling to a building, the thermal energy system comprising a heat pump system having an output for a working fluid connected to a heating output of the thermal energy system, a first geothermal system in which a working fluid is, in use, circulated, a first switch assembly selectively connecting the first geothermal system to at least one of the heating output of the thermal energy system and an input for a working fluid of the heat pump system, a second geothermal system in which a working fluid is, in use, circulated, and a second switch assembly selectively connecting the second geothermal system to at least one of a cooling output of the thermal energy system and the input of the heat pump system.