610results about How to "Efficient power generation" patented technology

A renewable energy resource management system manages a delivery of a power requirement from a multi-resource offshore renewable energy installation to an intelligent power distribution network. The installation includes multiple renewable energy resource components and is capable of variably and independently generating power from each to microgrids comprising the intelligent power distribution network so that the entire power requirement is satisfied from renewable energy resources. An electricity grid infrastructure is also disclosed in which power production is balanced with power consumption so that power storage requirements are minimized.

A semi-closed combined cycle power system 100 is provided which can also convert an open combined cycle gas turbine 10 into a non-polluting zero emissions power system. The prior art open combined cycle gas turbine 10 includes a compressor 20 which compresses air A' and combusts the air A' with a fuel, such as natural gas. The products of combustion and the remaining portions of the air form the exhaust E' which is expanded through the turbine 40. The turbine 40 drives the compressor 20 and outputs power. The exhaust E' exits the turbine 40 and then can optionally be routed through a heat recovery steam generator 50 to function as a combined cycle. According to this invention, the exhaust E' is not emitted into the atmosphere, but rather is routed to a divider 110. The divider 110 includes two outlets for the exhaust E' including a return duct 120 and a separation duct 130 which both receive a portion of the exhaust E'. The return duct 120 routes a portion of the exhaust E' back to the compressor 20. Before reaching the compressor 20, an oxygen duct 150 adds additional oxygen to the exhaust E' to form a gas mixture C which includes CO2 and steam from the exhaust E' and oxygen from the oxygen duct 150. This gas mixture C has characteristics which mimic those of air, so that the compressor 20 need not be modified to effectively compress the gas mixture C. The gas mixture C is compressed within the compressor 20 and routed to the combustor 30 where the fuel combusts with the oxygen of the gas mixture C' and produces exhaust E' which is substantially entirely CO2 and steam. This exhaust E' is routed through the turbine 40 and expanded to drive the compressor 20 and output power. The exhaust E' exits the turbine 40 and is routed back to the divider 110, preferably by way of a heat recovery steam generator 50 or other heat removal device, so that the semi-closed cycle operates as a combined cycle power system 100. The divider 110 directs a portion of the exhaust E' to a separation duct 130 which leads to a condenser 140. In the condenser 140 the exhaust E' is separated by condensation of the steam / water portion of the exhaust and removal of the remaining CO2 as gas from the condenser 140. The only exhaust from the semi-closed power system 100 is water and CO2 from the condenser. The CO2 exhaust is substantially pure and ready for appropriate further handling and disposal. Hence, no pollutants are emitted from the semi-closed power system 100. The return duct 120 can

A combustor apparatus is provided, comprising a mixing arrangement for mixing a carbonaceous fuel with enriched oxygen and a working fluid to form a fuel mixture. A combustion chamber is at least partially defined by a porous perimetric transpiration member, at least partially surrounded by a pressure containment member. The combustion chamber has longitudinally spaced apart inlet and outlet portions. The fuel mixture is received by the inlet portion for combustion within the combustion chamber at a combustion temperature to form a combustion product. The combustion chamber directs the combustion product longitudinally toward the outlet portion. The transpiration member is configured to substantially uniformly direct a transpiration substance therethrough toward the combustion chamber, such that the transpiration substance is directed to flow helically about the perimeter and longitudinally between the inlet and outlet portions, for buffering interaction between the combustion product and the transpiration member. Associated systems are also provided.

A system and process are disclosed for the controlled combustion of a wide variety of hydrocarbon feedstocks to produce thermal energy, liquid fuels, and other valuable products with little or no emissions. The hydrocarbon feeds, such as coal and biomass, are first gasified and then oxidized in a two-chamber system / process using pure oxygen rather than ambient air. A portion of the intermediate gases generated in the system / process are sent to a Fischer-Tropsch synthesis process for conversion into diesel fuel and other desired liquid hydrocarbons. The remaining intermediate gases are circulated and recycled through each of the gasification / oxidation chambers in order to maximize energy production. The energy produced through the system / process is used to generate steam and produce power through conventional steam turbine technology. In addition to the release of heat energy, the hydrocarbon fuels are oxidized to the pure product compounds of water and carbon dioxide, which are subsequently purified and marketed. The system / process minimizes environmental emissions.

A power system for an aircraft includes a solid oxide fuel cell system which generates electric power for the aircraft and an exhaust stream; and a heat exchanger for transferring heat from the exhaust stream of the solid oxide fuel cell to a heat requiring system or component of the aircraft. The heat can be transferred to fuel for the primary engine of the aircraft. Further, the same fuel can be used to power both the primary engine and the SOFC. A heat exchanger is positioned to cool reformate before feeding to the fuel cell. SOFC exhaust is treated and used as inerting gas. Finally, oxidant to the SOFC can be obtained from the aircraft cabin, or exterior, or both.

Disclosed is an efficient refrigeration apparatus that provides refrigerant based energy storage and cooling. When connected to a condensing unit, the system has the ability to store energy capacity during one time period and provide cooling from the stored energy during a second time period. The system requires minimal energy to operate during either time period, and only a fraction of the energy required to operate the system during the first time period is required to operate the system during the second time period using an optional refrigerant pump.

The invention provides a vehicle-mounted bidirectional charger for an electric automobile. The charger comprises an alternating current (AC) / direct current(DC) converter, a DC / DC converter, a microprocessor control circuit and a filtering circuit, wherein one end of the AC / DC converter is connected with a power grid through the filtering circuit and the other end of the AC / DC converter is connected with a battery pack through the DC / DC converter; and the microprocessor control circuit is connected with the AC / DC converter and the DC / DC converter respectively. Energy can be reasonably transformed between the power grid and a power battery by utilizing a peak-valley difference of the power grid, and social energy and user cost are effectively saved; and an isolated double active half-bridgebidirectional DC / DC converter is adopted on a battery side, so that the whole system has higher safety, the electric shock hazard for a user is reduced, and the conversion performance is efficient and stable.

A renewable energy-based electricity grid infrastructure utilizes distributed data analytics to enable modeling and delivery of an appropriate, time-sensitive, dynamic demand response from multiple renewable energy components to an intelligent power distribution network. Data processing resources are identified and aggregated within a distributed computing infrastructure to provide dynamic demand response as a service of a dedicated grid data analytics module. Aggregation of processing resources for grid data analytics also enables the electricity grid infrastructure to virtually, optimally and adaptively make decisions about power production, distribution, and consumption so that a demand response is a moduled service of the electricity grid infrastructure, and enables distributed energy generation from multiple renewable energy resources that is responsive to various types of grid demand situations, such as customer demand, direct current-specific demand, and security issues, and so that power production is substantially balanced with power consumption.

A method and an apparatus for power generation, by which high-efficiency power generation is achieved by utilizing a boiler-oriented fuel such as inexpensive coal, heavy oil and waste plastic, and by further utilizing a gas-turbine-oriented fuel in some cases, without exerting bad effects on the environment, at low equipment cost. In the apparatus, first, the boiler-oriented fuel is separated into a distillate and a residue by partial processing. The distillate (in some cases, with a gas-turbine-oriented fuel) is supplied to a gas turbine to generate electric power. Further, a combustion exhaust gas discharged from the turbine is supplied to a boiler. Then, the residue (in some cases, with a boiler-oriented fuel) is burned to obtain steam. Further, electric power is generated by the steam.

A system and process for maximizing the generation of marketable products from a variety of hydrocarbon feedstocks. The hydrocarbon feedstocks are first gasified and then oxidized in a two-chamber system and process using oxygen gas rather than ambient air. Intermediate gases generated in the system and process are recirculated and recycled to the gasification and oxidation chambers in order to maximize both energy generation and the resulting stoichiometric reaction products. The energy produced through the system and process is used to generate steam and produce power through conventional steam turbine technology. In addition to the release of heat energy, the hydrocarbon feedstocks are oxidized to the pure product compounds of water and carbon dioxide. The carbon dioxide is subsequently purified and marketed. The water recovered from the system and process is collected and electrolyzed to generate oxygen and hydrogen gases. These gases are separated using conventional gas separation technologies and also marketed. The system and process minimizes environmental emissions.

A solar cell construction in a display device is provided. The photovoltaic conversion can be performed with high efficiency by the solar cell construction. The display device includes a front substrate and an opposing rear substrate, which are light-transmissive. The display device further includes an optical control layer, a solar cell layer and an insulating flattened layer. The optical control layer is disposed between the substrates, wherein images formed by the optical control layer are displayed on the outer side of the front substrate. The solar cell layer is disposed in a specific area of the major surface on the rear substrate, between the rear substrate serving as a base for supporting it and the optical control layer, and receives incident light coming from the external surroundings through the rear substrate. The insulating flattened layer is formed on the solar cell layer, wherein the optical control layer is formed on and supported by the insulating flattened layer.

The invention discloses a switch magnetic resistance generator system capable of realizing rapid excitation / demagnetization. The system comprises a switch magnetic resistance motor body, a prime mover, a position sensor, a power converter, a DC power supply and a controller, wherein the power converter is a four-level power converter. By adopting the four-level power converter, at an excitation stage, in an angle position control mode, the exciter current of a phase winding is increased, and the energy storage of a magnetic field is increased so that the output power of an overall power generation system is improved and it is easier for the power generation system to reach a rated power; in an current chopping control mode, the excitation time is reduced, rapid excitation is realized, and the time of a generating stage is increased so that the generating capacity of a motor is enhanced and the output power of the system is increased; and at the generating system, when two voltage sources are utilized, rapid demagnetization can be realized.

A display device includes a first layer having an optically active display portion, a second layer including a photovoltaic element, and a third layer including electronics operatively coupled to the first layer, wherein the electronics are configured to drive the optically active display portion. Further, the second layer is arranged between the first and third layers.

A power transmission system manages a delivery of a power requirement from multiple renewable energy resource components to an intelligent power distribution network. The transmission system includes components capable of variably and independently generating power from the multiple renewable energy resource components to provide a dynamic demand response to a power requirement to one or more microgrids comprising the intelligent power distribution network so that the power requirement is entirely satisfied from multiple renewable energy resources from a common location. The transmission system enables distributed energy generation from the multiple renewable energy resources that is responsive to various types of grid demand situations, such as customer demand, direct current-specific demand, and security issues, and so that power production is substantially balanced with power consumption.

The invention discloses an intelligent management method for a photovoltaic module, and belongs to the field of operating maintenance of photovoltaic power stations. The intelligent management method for the photovoltaic module comprises the steps of (1) collecting external information of the photovoltaic module; (2) obtaining an actual I-V characteristic curve according to the external information; (3) judging whether the actual I-V characteristic curve meets a theoretical I-V characteristic curve or not, further analyzing abnormal types by utilizing a natural law principle if a set error value is exceeded, and otherwise, repeating the above steps; (4) sending warning messages if the abnormal types are judged to be faults, executing cleaning operation if the abnormal types are judged to be overmuch dirt retention, and carrying out no actions if the abnormal types are judged to be shadow covering. The invention further discloses an intelligent management system of the photovoltaic module. According to the intelligent management method and system for the photovoltaic module, real-time monitoring and automatic cleaning are carried out on the faults, cleanliness and the like of the photovoltaic module based on the natural law and the I-V characteristic curve of crystalline silicon, and safe, efficient, high-quality, intelligent, simple and convenient operation management of the photovoltaic power station is achieved.

The object of the present disclosure lies at least in providing a multi-assembly tracking control system for solar photovoltaic module, which may control multiple sets of photovoltaic module assemblies simultaneously, so as to enable a single-axis tracking in one direction or a two-axis tracking in two directions. It is able to receive the sunlight in a most efficient manner under various climate and deployment conditions, to greatly raise the power generation efficiency and to enhance the stability of the whole system.

An electromagnetic energy scavenger (10) for converting kinetic energy into electrical energy comprises at least one permanent magnet (12) and one or more coils (11) lying in a coil plane, the one or more coils being electrically interconnected for delivery of electrical energy. Upon mechanical movement of the energy scavenger (10), the at least one permanent magnet (12) is freely movable relative to the coils (11) in a plane parallel to the coil plane, thus generating an electrical field in at least one coil (11).

Disclosed is an efficient, energy storage and cooling system that is refrigerant based. When connected to a condensing unit, the system has the ability to store energy capacity during one time period and provide cooling from the stored energy during a second time period. The system requires minimal energy to operate during either time period, and only a fraction of the energy required to operate the system during the first time period is required to operate the system during the second time period using an optional refrigerant pump.

The present invention relates to a thermoelectric conversion system for receiving heat by radiation from a heat source and an efficiency improving method of the thermoelectric conversion system, the system including at least one thermoelectric conversion module 5 having at least a pair of thermoelectric elements 2, a heat receiving zone 6 placed not to contact a heat source 3 for receiving heat by radiation from the heat source 3 and a radiating zone 7 positioned on an opposite side to the heat receiving zone 6 and cooled by a coolant 4, generating electric power by a temperature difference between the heat receiving zone 6 and the radiating zone 7, a continuous or divided heat receiving surface 18 formed by one or a plurality of surfaces facing the heat source 3 of the heat receiving zone 6, and each of the heat receiving surface 18 is given a different quantity of heat from the heat source 3, the system comprising the heat receiving surface 18 has a plurality of different emissivities according to the quantity of heat received from the heat source 3.

On a substrate 1 is formed a first transparent electrode layer 3, on which a p-type semiconductor film 5, an i-type semiconductor film 6 and an n-type semiconductor film 7 are successively formed to constitute an electric power generating layer. On the n-type semiconductor film 7 is formed a second transparent electrode layer 8, on which a back electrode layer 9 is formed. Moreover, an intermediate layer 4 made of a given material is formed between the first transparent electrode layer 3 and the p-type semiconductor film 5 to complete a photovoltaic element 40 with high electric power generating efficiency (conversion efficiency).

A renewable energy resource management system manages a delivery of a power requirement from a multi-resource offshore renewable energy installation to an intelligent power distribution network. The installation includes multiple renewable energy resource components and is capable of variably and independently generating power from each to microgrids comprising the intelligent power distribution network so that the entire power requirement is satisfied from renewable energy resources. An electricity grid infrastructure is also disclosed in which power production is balanced with power consumption so that power storage requirements are minimized.

A solar servo control tracking device is disclosed. The device includes: an integrated control device having a solar cell sensor unit detecting luminance at a solar azimuth, and an integrated control panel transmitting a control signal at a maximal solar azimuth, calculated by comparing a solar azimuth from the luminance at a solar azimuth; and solar tracking devices, respectively having a tracking device controller receiving the control signal via a wireless link, a high torque driving unit with an AC single phase inductor to generate driving torque by the control signal from the tracking device controller, solar module assemblies driven by the high torque driving unit to track the solar azimuth in accordance with the control signal, and an operating angle sensor unit installed to the high torque driving unit to detect operating angles of the solar module assemblies that track the sun by the control signal.

Provided is a gas turbine power plant in which a rotor of a generator is journalled by water lubrication bearings into which a part of cooling water for cooling the generator is fed. Since the lubrication water has a viscosity lower than that of lubrication oil, it is possible to provide a gas turbine power plant with less energy loss resulting in lower power consumption for accessories, and in high power generation efficiency.

A renewable energy resource management system manages a delivery of a power requirement from a multi-resource offshore renewable energy installation to an intelligent power distribution network. The installation includes multiple renewable energy resource components and is capable of variably and independently generating power from each to microgrids comprising the intelligent power distribution network so that the entire power requirement is satisfied from renewable energy resources. An electricity grid infrastructure is also disclosed in which power production is balanced with power consumption so that power storage requirements are minimized.

A combustor apparatus is provided, comprising a mixing arrangement for mixing a carbonaceous fuel with enriched oxygen and a working fluid to form a fuel mixture. A combustion chamber is at least partially defined by a porous perimetric transpiration member, at least partially surrounded by a pressure containment member. The combustion chamber has longitudinally spaced apart inlet and outlet portions. The fuel mixture is received by the inlet portion for combustion within the combustion chamber at a combustion temperature to form a combustion product. The combustion chamber directs the combustion product longitudinally toward the outlet portion. The transpiration member is configured to substantially uniformly direct a transpiration substance therethrough toward the combustion chamber, such that the transpiration substance is directed to flow helically about the perimeter and longitudinally between the inlet and outlet portions, for buffering interaction between the combustion product and the transpiration member. Associated systems are also provided.

The invention discloses a method for saving energy through injection air suction in a thermodynamic process, which belongs to the field of heat energy power. In order to improve thermal efficiency, a high-parameter power air source is utilized; a composite injection system is formed by an injection air suction thermodynamic system in a circulating air suction mode or by a multistage injection air suction device on the level of more than one in a serial connection, parallel connection and circulation combined mode; and by combining an injection air suction system with a gas turbine engine and other heat and power conversion equipment, a high-parameter air source enters the injection air suction system and then enters the gas turbine engine to do work so as to operate at high efficiency. In addition, an injection refrigeration scheme capable of reducing throttling losses is provided; and the energy saving method can be popularized to wide energy-saving fields of various heat energy and power processes, seawater and other water thermodynamic purification systems and the like, and is high in efficiency and low in cost.

A wind power generation system includes: a wind turbine in which at least one blade is mounted on an axis; a generator for generating multiphase alternating current power by rotation of the axis; and a multiphase power conversion device for performing PWM-control for adjustment and output of generated power of the generator. With the configuration, the PWM-control provides for each phase a control paused period in which no overlap occurs. Thus, the pulse density between the control period and the control paused period of other phases is low, thereby generating high and low density in an inter-phase pulse.