69 results about "Geothermal heat exchanger" patented technology

Systems, methods and devices for utilizing an energy chassis device designed to sense, collect, store and distribute energy from where it is available using devices that harvest or convert energy to locations requiring energy such as but not limited to HVAC (heating, ventilation and cooling) systems. The systems, methods and devices can also be used with a next generation geothermal heat exchanger that achieves higher energy harvesting efficiency and provides greater functionality than current geothermal exchangers.

A pipe for use in a geothermal heat exchange system is disclosed that is insertable into a bore hole having a proximal end and a distal end. The pipe has a proximal end, a distal end and an outer wall member. The outer wall member includes an external surface, and an interior surface defining an interior passageway through which a heat exchange fluid can flow. The pipe also includes a divider extending between opposed points of the interior surface for dividing the interior passageway into an inflow passageway for conducting water from the proximal end to the distal end of the pipe, and an outflow passageway for conducting water from the distal end to the proximal end of the pipe. The divider segregates the water in the outflow passageway from the water in the inflow passageway.

A heat-electricity combined production system includes: a solar cell module in which a flow path through which a heat source side heating medium heated by solar heat flows, is formed and which generates electricity by solar light; a geothermal heat exchanger that absorbs geothermal heat through the heat source side heating medium; a heat pump including a heat source side heat exchanger that performs heat-exchange between the heat source side heating medium and a refrigerant and a load side heat exchanger that performs heat-exchange between the refrigerant and a load side heating medium; a controller that control the heat source side heating medium to pass through both the solar cell module and the geothermal heat exchanger; and a plurality of pipes that connect the solar cell module, the geothermal heat exchanger and the heat pump.

A geothermal heat exchanger includes a water injection pipe installed underground and receiving water supplied from above ground and a steam extraction pipe installed underground and contiguous to the water injection pipe. The steam extraction pipe has a plurality of gushing ports at its lower part, and pressure in the steam extraction pipe is decreased approximately to pressure required by a turbine. The steam extraction pipe is formed such that the diameter of the steam extraction pipe becomes smaller from the lower side of the geothermal region toward the upper side of a ground surface. Water supplied to the water injection pipe becomes high-temperature pressurized water by heat supplied from the geothermal region, and gushes from the gushing ports into the steam extraction pipe in an atomized state, and is then converted into a steam single-phase flow, and allows a power generator to conduct power generation.

The present invention is directed at the thermodynamic property amplification of a given thermal supply, provided by hydrocarbon combustion or in the preferred application heat provided by low-grade geothermal energy from the earth, for a vapor power cycle. The present invention achieves the desired objectives by segregating the compressible supercritical energy stream from the heat exchanger (boiler) into hot and cool fractions using a vortex tube, where the hot temperature is elevated above the heat exchanger temperature; and adding back heat (enthalpy) to the cool stream increasing the cool temperature to that of the geothermal heat exchanger. The heat-exchanger (boiler) supercritical gaseous mass flow segregated by a counterflow vortex tube (or bank of vortex tubes) forms hot and cool fractions where the hot temperature is raised above the heat-exchanger supply temperature, and heat (enthalpy) is added to the cool stream thereby increasing the cool temperature to that of the heat exchanger supply temperature.

The invention discloses a deep-sea carbon storage and power generation system. The deep-sea carbon storage and power generation system comprises a waste heat turbine, a waste gas heat exchanger, a gasstripping device, a waste gas treatment device, a supercritical carbon dioxide compressor, wave energy power generation equipment, a geothermal heat exchanger, a supercritical carbon dioxide turbineand a seabed cooler. According to the deep-sea carbon storage and power generation system disclosed by the invention, waste heat power generation and carbon dioxide stripping are performed on power plant waste gas, and the stripped carbon dioxide is applied to a seabed geothermal Brayton cycle, and is finally stored in deep-sea storage holes. The system is compact in structure, is small in size and is high in efficiency. Rich seabed geothermal energy is used as a heat source, is free of pollution and is low in cost; carbon dioxide is stored in the form of carbon dioxide hydrate, is relativelylow in cost, is environmentally-friendly and is good in leakproofness; and a dried oilfield, gas field or natural hole with a good storage cover in a seabed geologic body is utilized as a carbon storage site, so that the storage effect is good, and later-period maintaining and monitoring cost is reduced, and therefore, the system has a wide application prospect.

The invention relates to a phase change energy storage sleeve-type geothermal heat exchanger and belongs to the technical field of ground source heat pump air conditioners. The phase change energy storage sleeve-type geothermal heat exchanger is constituted by a central pipe, a first sleeve, a second sleeve, a third sleeve, a first annular channel, a second annular channel, a top cover plate, a bottom cover plate, summer and winter working condition phase change materials, a water inlet pipe and a water outlet pipe. The first sleeve, the second sleeve and the third sleeve are placed on the outer side of the central pipe in the radius increasing direction with the central pipe as the circle center. The summer working condition phase change materials are packaged into the central pipe, the winter working condition phase change materials are packaged into an annular closed space defined by the second sleeve and the third sleeve. According to the phase change energy storage sleeve-type geothermal heat exchanger, the defects of large soil temperature fluctuation, wide thermal effect zone and large thermal short-circuiting of the water inlet and outlet pipes during operation of an existing geothermal heat exchanger are overcome, through phase change heat absorption and release of the phase change materials, the heat exchange amount of the geothermal heat exchanger can be increased while thermal short-circuiting of the water inlet and outlet pipes is weakened, the thermal effect degree of the soil temperature is reduced, the thermal interference radius is decreased, and the pipe burying area is decreased, so that the heat exchange efficiency of the heat exchanger is improved.

A data center cooling system is operated in a first mode, and has an indoor portion wherein heat is absorbed from components in the data center by a heat transfer fluid, and an outdoor heat exchanger portion and a geothermal heat exchanger portion. The first mode includes ambient air cooling of the heat transfer fluid in the outdoor heat exchanger portion and / or geothermal cooling of the heat transfer fluid in the geothermal heat exchanger portion. Based on an appropriate metric, a determination is made that a switch should be made from the first mode to a second mode; and, in response, the data center cooling system is switched to the second mode. The second mode is different than the first mode.

A solar geothermal air conditioner comprises a solar collector, an underground geothermal heat exchanger and a full-automatic solar geothermal air-conditioner controller. The solar collector is connected with a heating system heat exchanger and a circulating fan through a solar heating water inlet pipe and a solar heating water return pipe. The underground geothermal heat exchanger is arranged underground, is used for collecting underground cold and is connected with a refrigerating system heat exchanger and the circulating fan through an underground cold water inlet pipe and an underground cold water return pipe, and an electromagnetic valve and a refrigerating system circulating pump are sequentially connected on the underground cold water inlet pipe. An indoor heating insulation water box is connected with an indoor hot water system, an indoor water box water inlet pipe of the indoor heating insulation water box is communicated with the solar heating water inlet pipe, and an indoor water box return pipe is communicated with the solar heating water return pipe. A solar photovoltaic power system is used for powering the whole air conditioner.

A pipe for use in a geothermal heat exchange system is disclosed that is insertable into a bore hole having a proximal end and a distal end. The pipe has a proximal end, a distal end and an outer wall member. The outer wall member includes an external surface, and an interior surface defining an interior passageway through which a heat exchange fluid can flow. The pipe also includes a divider extending between opposed points of the interior surface for dividing the interior passageway into an inflow passageway for conducting water from the proximal end to the distal end of the pipe, and an outflow passageway for conducting water from the distal end to the proximal end of the pipe. The divider segregates the water in the outflow passageway from the water in the inflow passageway.

The invention discloses a gradient utilization system by medium / low-temperature geothermal energy assisted carbon dioxide capture. The system is mainly composed of a power plant power generation subsystem, a carbon dioxide capture subsystem, a medium / low-temperature geothermal energy subsystem and related control components. All the parts are mainly connected by a fume cleaning device, a reboiler and a geothermal heat exchanger, thereby forming an overall system. The operating fluid subjected to heat exchange with the geothermal fluid sequentially passes through the reboiler and the power plant low-pressure water supply heat exchanger, thereby providing heat for the reboiler in the carbon dioxide capture process, providing heat requirements for the power plant low-pressure water supply heat exchanger, and lowering the extraction steam of power plant low-pressure water supply heating. The system sufficiently implements the gradient utilization of geothermal energy, can greatly lower the energy consumption by extracting steam from the power plant steam turbine, implements the double effects of renewable energy source utilization and power plant carbon dioxide emission reduction on the premise of maintaining the stability of the power plant, and vigorously promotes the large-scale application of the national geothermal energy and flue gas capture integration technology.

The present invention relates to a wind turbine geothermal heating and cooling system. Specifically a wind turbine having a tower and a nacelle, includes at least one unit to be heated or cooled. The unit can be housed within the tower or nacelle. A geothermal heat exchanger can be located inside the tower or nacelle. A geothermal cooling circuit provides flow communication between the unit to be heated or cooled and the heat exchanger, and contains a thermal transfer medium flowing between the unit and the heat exchanger for facilitating heating or cooling of the unit.