26 results about "Fuel conversion" patented technology

The application discloses a CO2 capture method and system based on fuel staged conversion coupled with chemical looping combustion, and the method comprises the following steps: flue gas is introduced into a carbonation tower filled with metal oxygen carriers MeO and adsorbents A, the adsorbents A adsorb CO2 in the flue gas, and then the solid in the tower is transported to a calciner; the adsorbents A after adsorption are decomposed into the adsorbents A and CO2 in the calciner, the MeO in the calciner reacts with the substances transported in a fuel pre-conversion reactor to generate a reduced metal oxygen carrier; the regenerated adsorbents A and the reduced metal oxygen carrier in the calciner are transported to an air reactor to generate MeO and regenerated adsorbents A which are returned to the carbonation tower; fuel and reactants are introduced into the fuel pre-conversion reactor, part of the fuel is converted, and the products are sent into the calciner. Through fuel partial conversion and chemical looping combustion, the application realizes grade matching of the fuel conversion and the adsorbent regeneration process, avoids air separation energy consumption of separated pure oxygen, and effectively reduces CO2 capture energy consumption after medium-high temperature adsorption combustion.

The invention discloses a preparation method of an oxygen vacancy-adjustable calcium-iron spinel oxygen carrier and application of the oxygen vacancy-adjustable calcium-iron spinel oxygen carrier in sulfur-containing fuel conversion, and belongs to the technical field of energy utilization, green conversion and treatment of sulfur-containing pollutants in the chemical looping combustion process. A CaFe2O4 spinel structure is formed through Ca element doping, and the CaFe2O4 spinel structure is synthesized at different temperatures so as to regulate and control the oxygen vacancy concentration of the CaFe2O4 spinel structure. According to the CaFe2O4 spinel oxygen carrier, by reducing the oxygen vacancy concentration, the lattice oxygen proportion can be increased at the same time so as to enhance the CH4 conversion activity, and the oxygen vacancy is reduced so as to inhibit H2S deposition and sulfur poisoning tendency. The calcium-iron spinel oxygen carrier has high reaction activity, excellent sulfur resistance and stability, can realize efficient conversion of sulfur-containing fuel and CO2 capture, can solve the problems of easy sulfur poisoning, poor reactivity and the like of a common metal oxide oxygen carrier, is suitable for the chemical looping combustion (CLC) process of fuels with different sulfur contents, and has a wide application prospect.

Fuel conversion unit and system for an internal combustion engine vehicle, and method for adjusting fuel distribution. The invention relates mainly to a fuel conversion unit (1) for an internal combustion engine vehicle, the vehicle comprising at least one first injector (4) and at least one second injector (6) controllable by a microcontroller (7) of the conversion unit (1), which microcontroller (7) is further provided to retrieve an injection signal, which conversion unit (1) further comprises a fuel sensor (8), characterized in that the microcontroller (7) is configured to determine the composition of the fuel, and for each engine cycle: • Determine an injection duration of the first injector (4) from the data of the injection signal;• Determine an injection duration for the second injector (6) based on the injection duration of the first injector (4) and the determined fuel composition, and • Control the second injector (6) according to the determined injection duration to deliver an additional quantity of fuel. Figure to be published with the abbreviation: Fig. 1;

The present disclosure relates to a control method of a range extender system and a working machine. The range extender system comprises an engine and a plurality of generators connected in series. The control method comprises: obtaining a total vehicle demand power, determining a combination of a plurality of speed-demand torques according to the total vehicle demand power to obtain a first set; screening the first set according to specific fuel consumption of the engine to obtain a second set; for the second set, obtaining a first target speed and a first target distribution coefficient under the total vehicle demand power by optimization calculation with the target of maximizing fuel conversion rate; controlling the engine to operate according to the first target speed, obtaining a plurality of first target distribution torques based on the first target distribution coefficient, and controlling the plurality of generators to work according to the plurality of first target distribution torques. The control strategy with the maximum fuel conversion rate can be obtained by optimization calculation, so that the operation state of the range extender system always has optimal fuel economy, and the power generation efficiency and fuel economy of the range extender system are effectively improved.

The present disclosure relates to the field of sustainability and, in particular, to calculating, monitoring and attributing carbon delta attributes (such as GHG savings) to select material products to improve the environmental impact of material production. The disclosure relates to methods, apparatuses and systems for generating, monitoring, and / or allocating carbon delta attributes associated with input materials provided to a fuel switch within a Scope 1 system boundary of a material production network.

A control unit and method for managing power sources and energy storage in a hybrid power generation system configured to meet power requirements of one or more electrical loads, and comprising: a main power source comprising one or more fuel cells, the one or more fuel cells are configured to convert hydrogen into electric power; an auxiliary power supply including a combustion engine and a generator configured to generate to convert fuel to electrical power; and an energy storage system configured to support the main power source and the auxiliary power source, and wherein the control unit is configured to monitor the power demand of the one or more electrical loads, and connect the energy storage system to support at least one of the main power source and the auxiliary power source when a peak of the power demand is detected.

An energy conversion arrangement, an energy system and an aircraft are provided for an aircraft, the aircraft (1) comprising an energy conversion arrangement (10) and / or an energy system (2), wherein the energy conversion arrangement (10) comprises a fuel conversion device (11), in particular a fuel cell system (70), for converting at least one fuel into electrical and / or mechanical energy, and at least one exhaust gas outlet (13) for discharging exhaust gas (E) produced by the fuel conversion in the fuel conversion device (11), and at least one mixing assembly (42) configured to merge a flow of further exhaust gas (G) of the fuel conversion device (11) with at least one flow of exhaust gas (E) from the at least one exhaust gas outlet (13).

The system comprises a fuel supply module, a combustion heating module, a waterway circulation module, a temperature control execution module, an intelligent control module and an outdoor expansion module, can be adaptive to hybrid power, fuel oil, pure electricity and other full vehicle types, and supports complete reloading of multiple fuels such as CNG, LPG and diesel oil. A large circulation mode, a small circulation mode and a water storage tank heat storage circulation mode are switched through the two three-way valves, and precise heating and temperature maintaining are achieved in combination with three-section fire grate staged combustion and two-stage temperature control. The method comprises the steps of vehicle type adaptation and fuel selection, circulation mode switching, staged combustion and temperature control, safety protection and energy consumption optimization and outdoor expansion use. The system has the advantages of compatibility of all vehicle types, multi-fuel adaptation, multiple functions, stable and reliable operation and reasonable energy consumption, can solve the problems of winter heating, battery temperature maintenance and outdoor expansion energy supply of different vehicle types, and is suitable for all scenes of commercial vehicles, motor homes, cars and the like.

The application provides a ship main engine power real-time optimization method based on a hybrid network model, belongs to the technical field of ship energy saving, and constructs a hybrid neural network model. The hybrid neural network model is based on a physical information neural network, introduces a KAN network as a front-end network structure, is used for establishing a high-dimensional nonlinear mapping from a speed, a ship type parameter matrix, a propulsion efficiency, a fuel conversion efficiency and an environmental factor to a minimum power of a main engine, trains the hybrid neural network model by using a composite loss function, and the composite loss function is composed of a mean square error loss, a dynamics constraint loss, a propulsion efficiency constraint loss and a fuel consumption constraint loss. By using the trained hybrid neural network model, real-time collected ship running parameters and environmental parameters are received, a minimum power prediction value of the ship main engine is output through one-time forward propagation calculation, and real-time optimization of the main engine power is realized.

An energy conversion arrangement for an aircraft, an energy system, a propulsion unit, and an aircraft comprising an energy conversion arrangement and / or an energy system are provided. The energy conversion arrangement includes at least one exhaust outlet for letting out exhaust produced by a fuel conversion device, in particular a fuel cell system, for converting at least one fuel to electrical and / or mechanical energy in the fuel conversion device; and at least one exhaust assembly configured to admix a stream of the exhaust from the at least one exhaust outlet with ambient air from the ambient surroundings in at least one mixing zone to promote a growth of water droplets through at least partly condensing water vapor contained in the exhaust in the mixing zone.

This invention provides an effective method for generating electricity through a process that involves dissolving biomass to produce solid fuel. [Solution] A power generation method using a power generation system having a dissolution reactor, a fuel converter, a carbon dioxide separator, and a power generation cell, comprising: a biomass dissolution step, in which biomass is reacted with a dissolution reaction solution containing vanadium ions in the dissolution reactor to obtain a fuel liquid which is a solution in which cellulose and hemicellulose contained in the biomass are dissolved in the dissolution reaction solution; a fuel conversion step, in which the fuel liquid is brought into contact with a catalyst contained in the fuel converter to oxidize the sugar components contained in the fuel liquid and obtain carbon dioxide and a converted fuel liquid; an anode supply liquid acquisition step, in which the carbon dioxide separator recovers the carbon dioxide contained in the converted fuel liquid and obtains a converted fuel liquid with a reduced carbon dioxide content as an anode supply liquid; and a power generation step, in which the anode supply liquid is supplied to the anode of a power generation cell to generate electricity.

The present invention relates to the technical field of internal combustion engine fuels, and provides a multi-fuel internal combustion engine using solid-state hydrogen storage, methanol, hydrogen, gasoline and diesel, and natural gas. The multi-fuel internal combustion engine comprises: a multi-fuel internal combustion engine body; a gas storage tank, in communication with an gas inlet pipe of the multi-fuel internal combustion engine body, wherein a flow regulating valve is mounted on the gas inlet pipe; a hydrogen supply assembly and a natural gas supply assembly, each connected to the gas storage tank; a methanol reformer, wherein a methanol reformer jacket is provided on an outer periphery of the methanol reformer, and the methanol reformer is connected to a methanol and gasoline-diesel supply assembly; and a solid-state hydrogen storage tank, wherein a solid-state hydrogen storage tank jacket is provided on an outer periphery of the solid-state hydrogen storage tank, a hydrogen injection pipe and a hydrogen discharge pipe are connected to the solid-state hydrogen storage tank, and the hydrogen discharge pipe is configured to communicate with the gas storage tank. The present invention enables flexible supply of one or more fuels to the internal combustion engine, and achieves an improved fuel conversion rate during the conversion process.

The application discloses a kind of distributed measurement methods for the content of hydrocarbon fuel cracking component: target material is pumped into reaction tube and heated to the target temperature required for thermal cracking;Real-time monitoring of relevant parameters;Real-time cooling and collecting the gas phase, liquid phase material of target material after thermal cracking;Online analysis of the component distribution of target material after thermal cracking, obtain the component distribution of target material after thermal cracking at different temperatures;Change pressure, continue the above steps to obtain the component distribution of target material after thermal cracking at different pressures;Based on the component distribution of target material after thermal cracking at different temperatures and different pressures, obtain the function of target material conversion rate and component content with temperature change respectively, and obtain the distribution of target material conversion rate and component content along the reaction tube respectively.The application also discloses a kind of using above-mentioned method device.The method and device realize the accurate measurement of distributed fuel conversion rate and component content.

The invention provides a hydrogen production decarburization and nitrogen co-production method and system, and the hydrogen production decarburization and nitrogen co-production method comprises the following steps: introducing a first mixed gas into a first product separation reactor, and carrying out in-situ separation on hydrocarbon fuel autothermal reforming of a first product; introducing the tail gas flowing out of the first product separation reforming reactor into a second product separation reactor, and carrying out in-situ separation on hydrocarbon fuel of a second product to carry out autothermal reforming or only carrying out separation of the second product; detecting the nitrogen purity in the nitrogen-rich gas flowing out of the second product separation reactor, or detecting the hydrocarbon fuel conversion rate or the hydrogen yield, and when the nitrogen purity, the hydrocarbon fuel conversion rate or the hydrogen yield in the nitrogen-rich gas reach a set value, leading out the tail gas flowing out of the second product separation reactor; otherwise, introducing the nitrogen-rich gas flowing out of the second product separation reactor into the first product separation reactor to continuously participate in the reaction.

An energy conversion arrangement for an aircraft, an energy system and an aircraft comprising an energy conversion arrangement and / or an energy system are provided. The energy conversion arrangement includes a fuel conversion device, in particular a fuel cell system, configured to convert at least one fuel to electrical and / or mechanical energy, and at least one an exhaust outlet for letting out exhaust produced in the fuel conversion device by the fuel conversion, and at least one mixing assembly configured to merge a stream of further exhaust of the fuel conversion device with at least one stream of the exhaust from the at least one exhaust outlet.

The invention relates to the field of crude oil engines, in particular to a crude oil engine capable of freely switching combustion media, which comprises a crude oil engine, an oil nozzle, a fuel oil conversion device and an oil temperature regulation and control unit, a fuel oil input port, a fuel oil backflow port, a fuel oil injection atomizing chamber and a combustion chamber are arranged in the crude oil engine, the fuel oil input port and the fuel oil backflow port are both arranged in the fuel oil injection atomizing chamber, and the fuel oil injection atomizing chamber is communicated with the combustion chamber. One end of the fuel injection nozzle is connected with the fuel conversion device, and the other end of the fuel injection nozzle is detachably arranged in a fuel input port of the fuel injection atomizing chamber; oil temperature regulation and control pipelines which are communicated with each other are wound on the fuel oil injection atomizing chamber and the fuel oil input port, and when the oil injection nozzle is arranged on the fuel oil input port, the oil injection nozzle is in contact with the oil temperature regulation and control pipeline on the fuel oil input port; a temperature control medium is arranged in the oil temperature regulation and control unit, and the oil temperature regulation and control unit is connected with the oil temperature regulation and control pipeline.

The invention discloses a range extender control method and device, a range extender system and a vehicle, relates to the field of vehicles, and can intelligently select starting and stopping speeds and / or generating power of a range extender based on electric quantity information and road information of the vehicle so as to improve fuel conversion rate, NVH experience and endurance experience. The method comprises the following steps: acquiring electric quantity information including current electric quantity and target electric quantity of a vehicle and navigation information including navigation speed and road type; the current electric quantity is used for representing the current electric quantity of a battery of the vehicle, and the target electric quantity is used for representing the electric quantity of the battery required by the vehicle driving to the destination; the navigation vehicle speed is used for representing the vehicle speed planned based on the navigation information, and the road type is used for representing the maximum traffic speed allowed by the road in the vehicle driving process; based on the electric quantity information and the navigation information, the starting and stopping speed and / or power generation power of the range extender are / is determined; the start-stop speed is used for representing the vehicle speed for triggering the range extender to start or stop.

An energy conversion arrangement, an energy system, a propulsion unit and an aircraft are provided for an aircraft, the aircraft (1) comprising an energy conversion arrangement (10) and / or an energy system (2), wherein the energy conversion arrangement (10) comprises at least one exhaust outlet (13) for discharging exhaust gas (E) generated by a fuel conversion device (11), in particular a fuel cell system (70), for converting at least one fuel into electrical and / or mechanical energy in the fuel conversion device (11), and at least one exhaust assembly (400) configured to mix a flow of the exhaust gas (E) from the at least one exhaust outlet (13) with ambient air (A) from the surrounding environment (7) in at least one mixing zone (406) to facilitate the growth of water droplets by at least partially condensing water vapor contained in the exhaust gas (E) in the mixing zone (406).

A method of operating an electrochemical fuel conversion system which comprises a plurality of cells arranged in groups and a plurality of switches which are for selectively engaging and disengaging r

Method for a vehicle comprising: - Determining a change in the square of the vehicle speed by a controller (12); - Comparing the change in the square of the vehicle speed with a first threshold value by the controller (12); - Determining a change in the vehicle's altitude by the controller (12); - Comparing the change in the vehicle's altitude with a second threshold value by the controller (12);if a positive change in the square of the vehicle speed is greater than the first threshold, and / or if a positive change in the vehicle altitude is greater than the second threshold: - Estimating a fuel conversion factor due to stored vehicle energy by the controller (12), wherein the conversion factor is determined by the controller (12) based on a difference between a fuel flow rate measured under steady-state driving conditions and a current fuel flow rate; - Compensating a measured fuel consumption value for changes in stored energy based on the estimated conversion factor by the controller (12) to obtain a compensated instantaneous fuel consumption value; and - Displaying the compensated instantaneous fuel consumption value to the driver of the vehicle.

A control unit manages power sources and energy storage in a hybrid power generation system. The hybrid power generation system is configured to meet a power demand of one or more electrical loads, and has a primary power source with one or more fuel cells to convert hydrogen to electrical power, a secondary power source comprising a combustion engine and a generator to generate to convert fuel into electrical power, and an energy storage system to support the primary and secondary power sources. The control unit monitors the power demand of the one or more electrical loads, and upon detecting a spike in the power demand, connects the energy storage system to support at least one of the primary and secondary power sources.

The invention belongs to the field of engine fault diagnosis, and particularly relates to a main fuel control loop fault diagnosis algorithm which comprises the following steps: determining a fourth deviation value D of metering valve displacement when fuel flow has third range deviation according to the third range deviation C of fuel conversion flow; according to the second deviation value B and the fourth deviation value D, a surveying and mapping fault under the current conversion high-pressure rotor rotating speed is judged; and according to single test run data analysis, the numerical values of the first deviation value A, the second deviation value B, the third range deviation C and the fourth deviation value D are verified. An engine steady-state characteristic model is introduced and compared with a metering valve displacement feedback value of a main control channel, and a method capable of accurately recognizing a fault is provided for the fault that the metering valve displacement feedback oil quantity is rapidly decreased due to line virtual connection of an LVDT. According to the method, the overtemperature and overrotation phenomena of the engine due to the fact that the abnormal measurement value of the displacement feedback of the metering valve is not recognized can be avoided, and the method has high engineering application value.

This invention relates to a solid oxide battery zone testing system and method with integrated gas composition monitoring. The test fixture includes an air electrode side assembly and a fuel electrode side assembly, each containing a metal base plate. Each metal base plate has a gas flow channel inside; the gas flow channel is connected to the corresponding porous electrode via an electrode current collector. An integrated detection array corresponds to each zone of the battery and is used to collect voltage and temperature signals from each zone and extract gas samples. A gas control and analysis system is connected to the detection array via piping, and a data recording and analysis unit is communicatively connected to the gas control and analysis system and the detection array. This invention enables simultaneous acquisition and analysis of voltage, temperature, and reaction gas composition in each zone of the battery, supplementing the monitoring dimensions. It can accurately quantify fuel conversion efficiency, identify battery faults, capture early degradation signals, improve the timeliness and accuracy of fault diagnosis, and provide precise gas composition boundary conditions.

The invention discloses a biomass fuel conversion full-process optimization management system based on digital twinning, and relates to the technical field of biomass fuel conversion. Comprising a raw material detection module, a raw material quality analysis module, a conversion efficiency analysis module, a process optimization module, a processing scheme output module, a digital twin system module, a production processing module, a whole-process monitoring module, a real-time data display module, a data integration module, a fault prediction module and a maintenance output module. According to the biomass fuel conversion full-process optimization management system based on digital twinning, the treatment process can be optimized in a targeted mode according to the raw material quality of biomass fuel, the system monitors the water content, the heat value and other parameters of raw materials in real time, the pretreatment process is dynamically adjusted in combination with a digital twinning model, and the pretreatment efficiency is improved. The optimal matching of the raw materials and the subsequent gasification / liquefaction process is ensured, and the production efficiency and the environmental protection performance of the biomass fuel can be remarkably improved.

This invention discloses a method, apparatus, electronic device, and storage medium for analyzing test data of solid oxide fuel cells, belonging to the field of battery data analysis technology. The method includes: acquiring the voltage data sequence and corresponding current data sequence of the solid oxide fuel cell; differentiating both to obtain a differential resistance sequence and calculating its moving standard deviation sequence, identifying the segment with the smallest standard deviation as a stable characteristic region; determining the ohmic impedance based on the average differential resistance within this region; further aligning the voltage and current data with preset voltage parameters, extracting specific voltage and current values, and calculating the fuel utilization rate in conjunction with fuel conversion parameters; finally, generating battery performance analysis results based on the ohmic impedance, specific voltage and current values, and fuel utilization rate. Therefore, by implementing this invention, the problem of existing technologies struggling to achieve objective and unified automated analysis of comprehensive battery performance can be solved.

The invention belongs to the technical field of fuel cells, and particularly relates to a fuel cell stack, which adopts a cascade fuel cell stack structure, is provided with a structural form of a main stack and an auxiliary stack, and is characterized in that residual hydrogen generated by reaction of the main stack is introduced into an anode of the auxiliary stack, and gas distribution of the anode of the auxiliary stack is controlled through output current and the number of stack sections; compared with a traditional galvanic pile structure, the galvanic pile adopting the structure can improve the fuel conversion efficiency of the galvanic pile by 1%-5%.