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9038385 System for extracting energy from wind and thermal gradients  
An inverted funnel-shaped columnar tower (115) includes a window region (120), a heat absorbing surface (130), an air entrance (116) and exit (117). Solar energy passes through the window region...
9038386 Thermal vector system for solar concentration power plant  
The present invention relates to a thermal vector system for solar concentration plants, in particular for parabolic trough solar concentration plants, both for industrial and domestic use,...
9038387 Solar thermal electricity generating systems with thermal storage  
Thermal energy can be stored in a fluid-based thermal storage system for later use. The stored thermal energy may be derived from steam generated using insolation in a steam-based solar power...
9037443 Systems and methods for solar power equipment  
A design system for generating a power equipment proposal for a particular location, comprises an insolation database, a load database, and a processing system. The insolation database comprises...
9032732 High efficiency OTEC service station  
A high efficiency OTEC service station for supporting a novel high efficiency ocean thermal energy conversion system. The high efficiency OTEC service station generally includes a semi-submersible...
9032729 Heated-air conduit for energy conversion systems and methods  
In an energy conversion system, a flexible conduit is disposed on the outside of a high rise of terrain drawing a stream of heated air through the conduit from a low to a higher elevation, a...
9032731 Cooling systems and hybrid A/C systems using an electromagnetic radiation-absorbing complex  
A method for powering a cooling unit. The method including applying electromagnetic (EM) radiation to a complex, where the complex absorbs the EM radiation to generate heat, transforming, using...
9032730 Solar receiving  
A solar receiver is disposed on a top portion of a tower provided upright on the ground for heating a compressible working fluid by means of heat converted from sunlight collected by heliostats...
9027347 Solar collector, and an electrical energy generation plant including such solar collectors  
A solar collector (26) includes: an outer tube (64) of circular cross-section, closed at one of its ends, an absorption layer (52) arranged inside the outer tube (64), for absorbing solar...
9027546 Improvements for solar collector receiver tubes  
A solar collector receiver tube containing an improved getter system is described. The solar collector receiver tube has a base, pills of getter material that are uniform in height, and a...
9027248 Solar panel mounting apparatus and method  
A solar panel mounting system includes a plurality of solar panel support structures which can be formed from solid concrete in adjacent rows with mounting surfaces that are tilted towards the...
9016063 ORC plant with a system for improving the heat exchange between the source of hot fluid and the working fluid  
The invention concerns an ORC plant (Organic Rankine Cycle) for a conversion of thermal energy into electric energy, that comprises a heat exchange group for the exchange of heat between the...
9010318 Extended-range heat transfer fluid using variable composition  
The present invention provides systems and methods for transferring heat using a variable composition organic heat transfer fluid that remains liquid over a wide operating temperature range useful...
9003795 Method and apparatus for operating a solar steam system  
The disclosed subject matter relates to methods and systems for operating a solar steam system in response to a detected or predicted reduced insolation condition (for example, sunset or a cloud...
8991181 Hybrid imbedded combined cycle  
A method (400, 1100) and apparatus (500, 1200) for producing work from heat includes a boiler (510) which is configured for heating a pressurized flow of a first working fluid (F1) to form of a...
8991182 Increasing the efficiency of supplemented ocean thermal energy conversion (SOTEC) systems  
A system and method for increasing the efficiency of an ocean thermal energy conversion (OTEC) system is described. In some examples, the system collects thermal energy using a solar collector,...
8991510 Carbon dioxide-based geothermal energy generation systems and methods related thereto  
A system comprises an injection well for accessing a reservoir containing a native fluid comprising a hydrocarbon. The reservoir is located below one or more caprocks, is at a first temperature,...
8984882 Solar receiver having back positioned header  
A solar receiver includes at least two receiver panels having a common outer front surface for receiving incident solar radiation from a field of mirrors. The receiver panels include an array of...
8984883 Hydropower and geothermal energy system and methods  
A hydroelectric and geothermal system includes a fluid communication channel that includes a first portion that extends from the earth's surface toward a subterranean hot area, a second portion...
8966900 Methods and systems to harvest energy from the earth  
The present disclosure provides an engine assembly that is installed below the surface of the earth to harvest the thermal energy of the earth, using a working fluid in a closed loop system, and...
8960186 Solar chimney with external solar collector  
A solar chimney includes a solar collector which heats air in the chimney, producing updrafts which can be harnessed to perform useful work. The solar collector may be located inside or outside...
8955450 Offshore installation for producing electrical energy  
This offshore installation for producing electrical energy from thermal energy of the oceans includes a floating platform supporting a generator for producing electrical energy from the...
8955320 Methods and apparatus for latent heat (phase change) thermal storage and associated heat transfer and exchange  
In various embodiments, phase change and heat exchange methods between heat collection, heat transfer, heat exchange, heat storage, and heat utility systems are described. In certain embodiments,...
8955322 Apparatus and method for increasing power plant efficiency at partial loads  
For increasing power plant efficiency during periods of variable heat input or at partial loads, a motive fluid is cycled through a Rankine cycle power plant having a vaporizer and a superheater...
8955319 Closed-loop geothermal power generation system with turbine engines  
A geothermal power generation system configured to generate power by suspending turbine engines over a pit exposing a geothermal energy source is disclosed. The geothermal power generation system...
8938967 Hybrid wind turbine  
An electrical power generation system comprising a tower, a nacelle supported by the tower, a wind turbine system supported on the nacelle, a fuel cell system, a battery system, a hybrid...
8938965 Thermal powered reciprocating-force motor  
A thermal-powered reciprocating-force motor includes a shutter switchable between a first position that passes solar energy and a second position that blocks solar energy. A shape memory alloy...
8938966 Storage of electrical energy with thermal storage and return through a thermodynamic cycle  
A device and a method for using overcapacities in the power grid is provided. In case of an oversupply of energy, the energy is transferred to a thermal storage device directly via a heating...
8935922 Steam generation device  
The present invention in several embodiments is an apparatus for producing potable distilled water and solar-thermal energy, as co-products of the generation of steam from sea water by...
8931276 Hybrid renewable energy system having underground heat storage apparatus  
Disclosed herein is a hybrid renewable energy system having an underground heat storage apparatus. A solar collector is provided on or around a building structure and collects solar heat to heat a...
8925319 Steam flow control system  
Systems and methods for model based steam flow control to and/or through a steam turbine component are disclosed. In one embodiment, a system includes: at least one computing device configured to...
8919124 Hydrogen permeable pipe  
A solar thermal power plant is provided. The solar thermal power plant includes a solar collection system configured for utilizing incident solar radiation to heat a heat transfer fluid (HTF) and...
8915084 Heat energy extraction system from underground in situ combustion of hydrocarbon reservoirs  
A system and method to extract heat energy from underground heat sources, then transport that heat to the surface in the form of a high temperature liquid or gas, and deliver the contaminant-free...
8915083 Vapor powered engine/electric generator  
The present invention provides a vapor powered apparatus for generating electric power. Embodiments of the present invention include a storage tank containing a working fluid having a boiling...
8904789 Method for generating energy by means of thermal cycles with high pressure and moderate temperature steam  
The invention relates to a method for generating energy by means of thermal cycles with high pressure and moderate temperature steam, which allows improving the energy and operational efficiency...
8899044 Surface tension mediated conversion of light to work  
Disclosed are a method and apparatus for converting light energy to mechanical energy by modification of surface tension on a supporting fluid. The apparatus comprises an object which may be...
8899043 Ocean thermal energy conversion plant  
An offshore power generation structure comprising a submerged portion having a first deck portion comprising an integral multi-stage evaporator system, a second deck portion comprising an integral...
8899763 Device for concentrating solar radiation with longitudinal mirrors and a longitudinal receiver  
A device for concentrating solar radiation (4) with longitudinal mirrors (7) and a longitudinal receiver (1), has mirrors with a circular cross-section with a radius of curvature that is twice the...
8893496 Sea water desalination and thermal energy conversion  
A system for energy conversion includes a first sub-system to be disposed at about a surface of the ocean and a second sub-system to be disposed at an ocean depth. The first sub-system includes an...
8893505 Integrated solar-gas turbine cogeneration plant  
The integrated solar-gas turbine cogeneration plant includes a fuel reformer, a plurality of solar collectors, and a gas turbine. The fuel reformer produces syngas to be used as fuel for the gas...
8894865 Process for depleting calcium and/or iron from geothermal brines  
This invention relates generally to processes for extracting iron and/or calcium from geothermal brines.
8881526 Laser for steam turbine system  
A steam turbine system uses a laser to instantaneously vaporize water in a nozzle within a turbine. This steam is then used to rotate the turbine. Thus, the turbine system does not require an...
8881525 Hybrid electrical generation system  
An electrical energy and thermal energy generation system that includes an electrical generator including a motor driving a rotor within a stator enclosed in an inner tube; a heat generating unit...
8881530 Fuel heating system for startup of a combustion system  
A system may include an insulated water tank configured to store a first heated water from a first plant component during operation of a plant, and a fuel heater comprising a heat exchanger,...
8875509 Power generation using buoyancy-induced vortices  
Various systems and methods are provided for power generation using buoyancy-induced vortices. In one embodiment, among others, a vortex generation system includes a nucleating obstruction; an...
8877016 Solar steam generation  
Systems and methods for solar steam generation are described. The systems and methods include moving at least one frame mounted optical focusing lens to track the sun in two axes and disposing a...
8875511 Geothermal wind system  
The Geothermal Wind System is a hybrid power production system using geothermal transfer of heat between native rock and an air mass circulating between two or more portals of substantially...
8875514 Thermo-electric engine  
A thermo-electric engine with a working fluid operative in a closed Rankine cycle to enable a harvesting energy from an external source of thermodynamic energy, such as an internal combustion...
8878047 Heat engine system for vehicles  
A heat engine system for a vehicle, wherein the vehicle is operable on a road surface, includes a collector configured for collecting an air layer disposed adjacent the road surface. The heat...
8875513 Thermal energy conversion plant  
A thermal energy conversion plant, wherein a pressurized liquefied working fluid gasifies in an evaporator unit located at the lower level of a closed-loop thermodynamic circuit, ascends through a...