Systems and methods for generating electrical power using a solar power system that comprises a pressurized closed loop pipe containing a transfer liquid extending between a solar collector and a heat exchanger. The transfer liquid is heated by the solar collector and gives up its thermal energy at the heat exchange to produce steam. The system also includes a source of geothermal energy and a source of natural gas. The geothermal energy in the form of heat separates the natural gas from the ground water in a separation tank. At the resulting heated ground water from the separation tank is connected to the heat exchanger to supplement thermal energy from the solar collector.

A coaxial circulation power generation device includes a moving medium reservoir adapted to be located in a pit formed in a heat source zone, a moving medium supply unit for supplying the moving medium to the moving medium reservoir, and a power generation unit for generating electricity from a driving force of the moving medium flowing between a low-temperature zone above and the high-temperature zone below the moving medium reservoir. The moving medium reservoir has an outer pipe connected to the moving medium supply unit and an inner pipe for circulating the moving medium, and the outer pipe and the inner pipe installed in the moving medium reservoir includes rotor blades that rotate in opposite directions with respect to a flow direction of the moving medium.

A system and method of using a subterranean energy storage system includes a geothermal reservoir with at least one fracture configured to hold a working fluid for a period of time. At least one wellbore is positioned within the geothermal reservoir fluidly coupled to the at least one fracture. At least one pump is configured to at least one of a) inject the working fluid into the at least one fracture and b) withdraw the working fluid from the at least one fracture. A power system is fluidly coupled to the wellbore, the power system configured to convert at least one of a) a thermal energy of the working fluid and b) a fluid dynamic energy of the working fluid into an electrical current. A downhole pressure of the working fluid held in the at least fracture for the period of time increases during the period time.

Systems and methods are presented for enhancing energy production and storage by integrating solar energy with geothermal processes. In certain embodiments, a hybrid geothermal/solar system increases energy yield from a closed loop geothermal system, stores heat in a wellbore, enhances power generation from geothermal brine, and/or facilitates carbon dioxide sequestration or conversion to fuel, all preferably utilizing solar energy as a supplemental heat source.

A power generation mechanism that utilizes solar heat together with geothermal heat is equipped with a boiler and at least one pipeline generator unit. The lower end of the boiler is provided with an input pipe, which can extend deep into the ground to extract dry geothermal heat accumulated in the subterranean layer into the interior of the boiler. The upper end of the boiler is equipped with a solar heat collector, which transfers solar heat to the interior of the boiler to further heat hot water inside; in addition, the upper end of the boiler is connected to at least one output pipe, which can transport the heated water and steam to a pipeline generator unit. By directing hot water and steam through a power generation channel located between the upper water tank and the lower water tank of the pipeline generator unit, the generator unit in the power generation channel generates electricity.

A detachable geothermal in-situ thermovoltaic power generation module and an assembly method thereof are provided, including a heat pipe, with a cross section set as a regular polygon structure; a plurality of thermovoltaic power generation units sleeved on the heat pipe at intervals and arranged in series; each of the thermovoltaic power generation modules includes a housing, arranged at one side of the heat pipe, and a side of the housing facing the heat pipe is an open end; an electric heating block, arranged at one side of an inner cavity of the housing far from the open end; a framework, connected with an outer wall of the open end of the housing; the thermovoltaic power generation sheets are located between the framework and the electric heating block; the two hoops are respectively connected with the two ends of the housing, the hoops are sleeved on the heat pipe.

A process of generating electricity from a thermal energy source includes selecting a predetermined primary fluid having: a latent heat greater than a latent heat of water at a phase change from liquid to gas; and a specific heat capacity less than a specific heat capacity of water in a liquid phase and in a gas phase; and selecting a predetermined secondary fluid having: a latent heat less than a latent heat of water at a phase change from liquid, to gas; and; a specific heat capacity less than a specific heat capacity of water in a liquid phase and in a gas phase. The process includes the primary fluid absorbing thermal energy from the thermal energy source; exchanging the thermal energy of the primary fluid with the secondary fluid; driving a turbine via the secondary fluid; and driving an electricity generator by the turbine to generate electricity.

The present invention discloses a magnetohydrodynamics power system which utilizes low temperature heat source. Variable control of the operation of the system, along with determining configurations for specific cases, are made possible by selecting the refrigerant, liquid metal circuit geometry, and by adjusting the system condensing pressure and/or temperature. Adjustable condensing pressure and/or temperature allows the system to react to changing ambient temperature and maximize power output. Adjusting condensing pressure and/or temperature of the system is made possible with a variable condenser pressure controller. The variable condenser pressure controller allows utilization of the physical properties of the refrigerant over a wide range of condensing temperatures/pressures, including pressures in the vacuum range. Meanwhile rare earth permanent magnets in paired Halbach arrays are used in the magnetohydrodynamics generator to augment the magnetic field, and a series electrode connection is made possible to achieve a high voltage output.

A process of generating electricity from a thermal energy source includes selecting a predetermined primary fluid having: a latent heat greater than a latent heat of water at a phase change from liquid to gas; and a specific heat capacity less than a specific heat capacity of water in a liquid phase and in a gas phase; and selecting a predetermined secondary fluid having: a latent heat less than a latent heat of water at a phase change from liquid, to gas; and; a specific heat capacity less than a specific heat capacity of water in a liquid phase and in a gas phase. The process includes the primary fluid absorbing thermal energy from the thermal energy source; exchanging the thermal energy of the primary fluid with the secondary fluid; driving a turbine via the secondary fluid; and driving an electricity generator by the turbine to generate electricity.

An interior space climate control system featuring a temperature differential engine, with the temperature differential engine configured to exploit the temperature differential of at least two sources with different temperatures. The fluids may be used to provide additional benefits to an interior space, such as heating, hot water, cooling, and refrigeration, and unused climate control fluids may in turn be used as sources of fluids with temperature differentials.