204results about How to "Improve energy recovery" patented technology

A structure for use in an energy storage device, the structure comprising a backbone system extending generally perpendicularly from a reference plane, and a population of microstructured anodically active material layers supported by the lateral surfaces of the backbones, each of the microstructured anodically active material layers having a void volume fraction of at least 0.1 and a thickness of at least 1 micrometer.

A strategy is provided using feedback control algorithms to monitor and dynamically modify front and rear braking torque to maintain controllability in a vehicle that initially favors regenerative braking. Simple proportional-integral-derivative feedback controllers can be used. The controller can monitor wheel speed, lateral acceleration, yaw rate, and brake position to selectively activate non-regenerative braking independently for each individual wheel and regenerative braking in varying proportion based on at least one actual vehicle controllability value and at least one predetermined target value for controllability and optimization of energy recovery. Controllability factors can include predetermined longitudinal slip ratio, comparison of tire slip angle or yaw rate. For rear wheel drive configurations, the non-regenerative brakes can be applied to just one front axle wheel on the outside of a turn. For front wheel drive configurations, the non-regenerative brakes can be applied to just one rear axle wheel on the inside of a turn.

A gas turbine power system for generating energy by means of a gas turbine cycle, wherein heat energy is more effectively used by burning the exhaust gases (109) and the partial oxidation of said exhaust gases (109) is achieved by means of a hypostoichiometric amount of air and steam fed into a catalytic reactor (107) to form a first oxidation stage followed downstream in said turbine (103) by additional oxidation occurring in a power turbine (104) or downstream therefrom, said power turbine being in turn arranged downstream from the catalytic reactor (107). Catalytic partial oxidation may be performed using a supply of an initiating agent, particularly hydrogen. The method is remarkable in that the hydrogen fed into the reactor inlet through an injector (113) is provided by recycling part of the effluent from the reactor, the power turbine or a reforming reactor for reforming part of the fuel gas with a large excess amount of steam for performing catalytic partial oxidation.

This invention relates to a process for producing methanol from a synthesis gas produced by partial oxidation of natural gas with an oxidant stream having a high nitrogen content, such as an oxygen enriched air stream. This invention utilizes a high pressure non-permeate gas stream of low BTU content obtained from a partial expansion of a very high pressure tail gas of the process down to a high pressure together with a high pressure non-permeate gas stream of low oxygen content to achieve an energy efficient process by passing these non-permeate, high pressure streams in combination into contact with an oxidizing catalyst, so to significantly increase the temperature of these combine high pressure gas streams, for increased working energy recovery therefrom, as by their expansion through a hot gas expander.

The invention discloses a continuous flow urban sewage partial nitrification and anaerobic ammonia oxidation denitrification method and belongs to the field of sewage. The method comprises the following steps of: allowing urban sewage to enter a biological adsorption reactor, adsorbing organic matters in water to activated sludge through the adsorption action of the activated sludge, and carrying out denitrification and anaerobic ammonia oxidation in an anoxic area of a partial nitrification anaerobic ammonia oxidation reactor to remove residual organic matters in water and nitrate nitrogen in return sludge; carrying out the partial nitrification in an aerobic area, and carrying out the anaerobic ammonia oxidation action in the anoxic area; repeating the actions in the aerobic area and the anoxic area; and finally, fulfilling the aim of removing nitrogen from the sludge.

The invention provides a coproduction method and device of hydrogen and electricity by organic wastes. The method comprises the following steps: (1) strain preparation and raw material pretreatment; (2) hydrogen production by anaerobic fermentation; (3) electricity generation by microbial fuel cell; and (4) clear water recycle or discharge. The device comprises a feed device, an anaerobic hydrogen-producing reactor and a microbial fuel cell which are communicated sequentially, wherein the water outlet of the anaerobic hydrogen-producing reactor is communicated with the water inlet of an anode chamber of the microbial fuel cell. According to the method and the device, the energy recovery rate of organic waste can be improved, further treatment of the organic waste can be realized. The method and the device are suitable for treating various organic waste water and solid organic wastes, including but not limited to organic acid waste water, sugar making waste water, starch waste water, wine brewing waste water, food processing waste water and residues, kitchen wastes, fruit and vegetable wastes and crop straws. By the application of the method and device, environmental governance and clean renewable energy source development can be effectively combined.

The invention discloses an electric car power cell automatic preheating method. According to the characteristics of a cell, the cell preheating time is intelligently computed in combination with related parameters such as car starting time, parking time and the environment temperature. The waiting time of manual preheating by a user is shortened, and the power performance and safety of a car during starting are improved. Capacity fading of the car power cell under the lower temperature condition and damage to the cell during usage under the lower temperature condition are avoided, the service life of the cell is prolonged to a certain extent, meanwhile, the optimal state of the car power cell is reached, energy recovery during car running is improved, and car electricity consumption is reduced. The electric car power cell automatic preheating method is suitable for preheating the electric car power cell.

The invention provides an electric braking torque distribution method and device for a vehicle. The electric braking torque distribution method comprises the steps that all data parameters of the travelling work condition, vehicle body parameters, a battery management system and a motor controller of a vehicle are obtained and stored; according to all the data parameters of the actual travelling work condition, the motor controller and the battery management system of the vehicle, whether the vehicle meets the conditions of sliding energy recovery or braking energy recovery or not is judged; and in a sliding energy recovery state, the target electric braking torque distribution ratio of a front motor and a rear motor is determined to the ratio of the distance from the mass center to a front shaft to the distance from the mass center to a rear shaft. According to the electric braking torque distribution method, sliding energy recovery electric braking torque and braking energy recoveryelectric braking torque are distributed qualitatively to the front motor and the rear motor; and the energy recovery rate is increased, the driving intention of a driver is easier to achieve, the phenomena of off tracking of the vehicle due to braking and sideslip of the rear shaft are effectively prevented, and the vehicle braking stability is improved.

Methods for production of carbon black using high temperature feedstock at temperatures exceeding about 300° C. with fouling control are provided. An apparatus for production of carbon black according to these methods also is provided.

The invention belongs to the fields of a driving device of an electric vehicle and a hybrid electric vehicle, and a control method thereof. The driving system provided by the invention comprises a brushless double-fed motor, a stator inverter, a rotor inverter, a stator / rotor winding relay control circuit, a motor driving and control module, a complete electric vehicle controller, an accumulator, a battery management unit and a current-voltage speed sensor, wherein the ports of the stator inverter and rotor inverter are respectively connected with the port of the accumulator; the port of the motor driving and control module is respectively connected with the ports of the stator inverter and rotor inverter; and the port of the motor driving and control module is connected with the port of the stator / rotor winding relay control circuit. The control method provided by the invention mainly comprises the following steps: judging the running state of a driving motor; and if the driving motor is in an asynchronous running state or a double-fed running state or the stator and rotor inverters have faults, successively and respectively executing the corresponding subprograms. The invention can enhance the control moment of a high-speed region of the vehicle, enlarge the speed regulating range, increase the recovery rate of energy and enhance the continuous voyage mileage of the electric vehicle.

The invention discloses a braking energy recovery control method and device and an electromobile. The method includes the steps that the mode which the electromobile is in is judged; if the electromobile is in a braking state, speed of the electromobile is obtained, and the speed segment which the electromobile is in is judged according to the speed of the electromobile; if the speed of the electromobile is in a first preset speed segment, first preset torque is adopted for braking control over the electromobile; if the speed of the electromobile is in a second preset speed segment, first preset power is adopted for braking control over the electromobile. More energy can be recovered through the braking energy recovery control method in the embodiment, and stability of electromobile braking can be ensured.

An organic matter such as sewage sludge (101) is treated by gasifying the organic matter into a combustible gas and using the combustible gas as a fuel for a gas engine or a gas turbine to recover power (energy). In a method of treating the organic matter, an organic matter as a raw material is dried in a drying process (51), the dried raw material is gasified to produce a generated gas (123), and the sensible heat from the generated gas and / or a combustion gas produced by gasification is recovered by using a heating medium in a recovery process. Then, the heating medium heated in the recovery process is introduced into the drying process as a heating medium gas for drying.

Methods for production of carbon black using high temperature feedstock at temperatures exceeding about 300° C. with fouling control are provided. An apparatus for production of carbon black according to these methods also is provided.

A gas separation process for treating exhaust gases from combustion processes. The invention involves routing a first portion of the exhaust stream to a carbon dioxide capture step, while simultaneously flowing a second portion of the exhaust gas stream across the feed side of a membrane, flowing a sweep gas stream, usually air, across the permeate side, then passing the permeate / sweep gas back to the combustor.

The invention discloses a hybrid power system for recovering the potential energy of a movable arm of an excavating machine. A check valve I, an auxiliary box, a motor, an electricity storing unit, a motor controller, a pressure sensor I, a pressure sensor II, a hydraulic motor, a clutch, a main controller and a check valve II are added on the basis of the conventional excavating machine; and an engine, the motor, the hydraulic motor and a master variable pump are combined into a power system through the auxiliary box. When the movable arm is lowered, oil flows back in two channels, a first oil backflow channel is connected into the hydraulic motor, a second oil backflow channel is connected into the master variable pump, and the hydraulic motor and the master variable pump are used for transmitting power to the power system respectively. The motor has an electricity generating function; by controlling the motor, the function of generating electricity through absorbed energy or providing driving energy through output energy can be realized, and the aim of energy conservation can be fulfilled; and the hybrid power system has the advantages of a small number of used elements, small element specification and low cost.

The invention discloses a low-energy-consumption municipal sewage nitrogen removal method based on enhanced carbon capture and anaerobic ammonia oxidation. A raw water tank is a closed tank and is provided with an overflow pipe and a blow-down pipe; a bio-stabilization reactor and a biological adsorption reactor are respectively in a high DO environment and a low DO environment; the municipal sewage carbon capture is enhanced by improving the ability of adsorbing organic matters through microbes; a biological nitrogen removal reactor is sequentially divided into a low DO aerobic zone, an anoxic zone, an aerobic zone and a settling zone; a shortcut nitrification-anaerobic ammonia oxidation reaction is carried out in the low DO aerobic zone, and ammonia nitrogen is converted into nitrogen and partial nitrate nitrogen; organic matters in partial raw water serve as a carbon source, and advanced nitrogen removal is realized through the shortcut nitrification-anaerobic ammonia oxidation reaction. In order to avoid the ammonia nitrogen existing in the effluent, the aerobic zone is increased at the rear end of the anoxic zone, and the residual ammonia nitrogen in the sewage is oxidized into nitrate; and finally, the sewage is discharged through the settling zone. According to the method, the municipal sewage energy recovery efficiency can be improved, and the advanced nitrogen removal is realized.

The invention belongs to the technical field of solid waste reclamation, and discloses a method for producing biogas by the aid of intensified anaerobic fermentation of circular backflow sludge in microwave and alkali combined treatment. The method includes steps: preparing concentrated sludge and dewatered sludge into mixed sludge; taking the mixed sludge as a fed material for anaerobic digestion; discharging sludge with the same volume; simultaneously repeatedly carrying out anaerobic digestion after the backflow sludge is in microwave and alkali combined treatment; and collecting the biogas. By the aid of the method, recovery ratio of anaerobic fermentation biomass energy of the sludge is increased, gas yield is stabilized, application is convenient, and sludge reclamation of the sludge is further promoted.

The invention discloses an electric automobile regenerative braking control method. The electric automobile regenerative braking control method comprises the steps that a pavement characteristic valuecalculation method is established based on an attachment system, a semi-empirical mathematical model of an attachment coefficient and a sliding rate is established, a pavement state characteristic value is introduced, and the pavement condition and an average adhesion coefficient corresponding to the pavement are identified; the braking forces of the front and rear wheels are judged according tothe size of the adhesion coefficient and the brake strength; the braking strength, the battery SOC and the vehicle speed are used as inputs of a fuzzy controller, an empirical fuzzy rule is established, the proportion of the regenerative braking force to the front wheel braking force is output through the fuzzy controller, and the final regenerative braking force is obtained by comparing the regenerative braking force with the maximum torque output by the motor; and the maximum braking force which can be provided by the motor is determined according to the final regenerative braking force, andthe front wheel friction braking force is obtained. According to the electric automobile regenerative braking control method, on the premise that braking safety is guaranteed, front and rear wheel braking force, the motor braking force and the friction braking force are reasonably distributed according to different attachment coefficients, the braking energy recovery rate and the driving range are improved, and the braking safety is increased.

A device for determining a driving state of a two-axle motor vehicle, which driving state is formed from the driving situation of the motor vehicle and the state of the underlying surface, wherein output signals from vehicle on-board sensors are evaluated in order to determine the driving situation and wherein a routine for determining and / or estimating the friction value of the underlying surface is provided in order to determine the state of the underlying surface. Also disclosed is a method for operating a combined vehicle brake system, in particular for motor vehicles, having hydraulically actuable wheel brakes at a front axle and having electromechanically actuable wheel brakes at a rear axle, wherein the vehicle wheels assigned to the rear axle can be driven at least at times by an electric motor which can be operated as a generator for the recuperation of braking energy

An organic matter such as sewage sludge ( 101 ) is treated by gasifying the organic matter into a combustible gas and using the combustible gas as a fuel for a gas engine or a gas turbine to recover power (energy). In a method of treating the organic matter, an organic matter as a raw material is dried in a drying process ( 51 ), the dried raw material is gasified to produce a generated gas ( 123 ), and the sensible heat from the generated gas and / or a combustion gas produced by gasification is recovered by using a heating medium in a recovery process. Then, the heating medium heated in the recovery process is introduced into the drying process as a heating medium gas for drying.

The embodiment of the invention provides a control method and device for an automobile energy recovery mode, and an automobile. The control method for the automobile energy recovery mode comprises steps of detecting whether a current automobile driving state meets a shift-on sliding state, acquiring a distance between an obstacle in front of a driving direction of the automobile and the automobile, and relative driving speed if the driving state meets the shift-on driving state, and controlling the automobile energy recovery mode according to the distance and the relative driving speed. According to the embodiment, energy can be recovered when the energy recovery mode is started and when the automobile is at a shift-on sliding driving state; and therefore, automobile energy recovering effect can be improved.

The invention provides a method for producing hydrogen and / or methane through fermentation of fiber wastes and a device thereof. The method comprises the following steps: smashing a straw into a certain grain diameter, placing into a hydrogen production reactor, adding a given amount of water and nutrient solution and then mixing with thermophile bacteria seed liquid together for fermentation to prepare the hydrogen; pumping hydrogen fermentation liquid into a liquid storage tank, continuously pumping into the hydrogen production reactor for fermentation to prepare the methane after pH is adjusted. Because of adopting fiber wastes, raw materials used by the invention have rich resource and low cost, effectively solve the resource problem of biological hydrogen production and overcome the problem that the fiber raw materials of the traditional straw are hard to effectively produce the hydrogen when being not subjected to pretreatment; and the semi-continuous hydrogen production is achieved through the fiber waste dynamic immobilization technology. The invention is easier to popularize and apply by adopting a coupled continuous methane production system and has the advantages of simple and highly-efficient method, energy conservation, low cost and the like.

The invention discloses a hydraulic hybrid power vehicle and a hydraulic hybrid power system thereof. The output shaft of an engine in the hydraulic hybrid power system is directly connected with an input shaft of a first transmission gear set, the first output shaft of the first transmission gear set is connected / disconnected with a first input end of a second transmission gear set through a clutch; a second output shaft of the first transmission gear set is connected with a driving shaft of a hydraulic pump, a hydraulic oil outlet of the hydraulic pump is connected / disconnected with a hydraulic pump / a motor through a direction control valve, and an output shaft of the hydraulic pump / the motor is connected with a second input shaft of the second transmission gear set; an output shaft of the second transmission gear set is connected with a drive axle of the hydraulic hybrid power vehicle; an outlet main oil path of the hydraulic pump is connected / disconnected with an oil inlet and an oil outlet of the hydraulic pump / the motor; an operating oil way of a high pressure energy accumulator is connected / disconnected with a main oil way through a switch valve so that hydraulic oil in the main oil path flows into the high pressure energy accumulator or the hydraulic oil in the high pressure energy accumulator flows into the main oil way. The power system is higher in reliability and higher in energy recovery ratio.

A series-parallel hydraulic drive hybrid power vehicle power assembly system belongs to the technical field of vehicle driving devices and aims at solving the problems in the prior art of complex structure shape, large control difficulty and high manufacture cost. The system comprises a front axle load wheel transmission portion, a rear axle load wheel transmission portion, a vehicle main controller, an engine, a brake controller, a transmission shaft and a hydraulic transmission system. The output end of the brake controller is connected with a front axle friction brake I and a front axle friction brake II of the front axle load wheel transmission portion and a rear axle friction brake II and a rear axle friction brake I of the rear axle load wheel transmission portion, the output end of the engine is connected with the transmission shaft, and the vehicle main controller controls output power of the engine and conducts matching adjustment on output power of the hydraulic transmission system by receiving torque values of a front axle torque sensor of the front axle load wheel transmission portion and a rear axle torque sensor of the rear axle load wheel transmission portion.

The invention discloses a series-connection braking energy-recovering system and method and belongs to the field of electric control and electric driving of electric cars. Specifically, the displacement change of a braking pedal during idle stroke is obtained by means of the method that a displacement sensor is additionally installed, so that when a user lightly steps the braking pedal, electric braking force can be loaded by an electric braking device according to the obtained displacement change, when the braking pedal is heavily stepped, hydraulic braking force is loaded by a hydraulic braking device, and meanwhile, the loaded hydraulic braking force and electric braking force are superimposed. According to the series-connection braking energy-recovering system and method, the electric braking force is generated before the hydraulic braking force, on the one hand, at most of the time, the electric braking force is provided, so that the loading frequency of the hydraulic braking force is decreased, and overall energy recovering rate is increased; and on the other hand, when the hydraulic braking force is generated, generation is a superimposed process, so that discomfort, brought by overquick loading of the braking force, of a user is avoided, and the driving and taking experience is promoted.

The invention discloses a sludge drying and energy recovering system and an energy recovering and drying process thereof. The system comprises a sludge storing chamber and is characterized in that the air outlet of the sludge storing chamber is connected with a deodorization reactor by a fan I, the sludge discharge port of the sludge storing chamber is connected with the sludge feed port of one end of a drying machine via a sludge pump, and the other end of the drying machine is provided with a sludge discharge port. By using the indirect drying manner in the system, the heat transfer efficiency is high, the amount of carrier gas is low, the heat loss is relatively low, the energy recovering rate is high, the dust is avoided basically, and the system can be used for drying the sludge with the water content of 70-85% to be the sludge with the solid content of 40-65%.

The invention comprises an internal combustion engine, a torsional vibration damper, two epicyclic trains, two motors, two driving shafts, a casing and a clutch. The internal combustion engine is connected with the planetary frame of the first epicyclic train through the torsional vibration damper and the first driving shaft the first motor is connected with the solar wheel of the first epicyclic train and the second motor is connected with the solar wheel of the second epicyclic train. The annular gear of the first epicyclic train is connected with the planetary frame of the second epicyclic train through the second driving shaft. The clutch drive disk is connected with the first driving shaft and the clutch driven disk is connected with the second driving shaft or the rotor of the first motor.

The invention discloses a perforated plate fresh air introducing and purifying device and belongs to the technical field of air energy recycling and high efficiency energy saving in ventilation equipment. The device comprises a perforated plate purifying, energy recycling and heating core, a fresh air machine, an exhaust fan and an electric cabinet, wherein the size of the perforated plate purifying, energy recycling and heating core is 160mm*160mm to 350mm*350mm; the perforated plate purifying, energy recycling and heating core comprises 45 to 2400 pieces of perforated plate semi-closed conductive combinations and corrugated pieces; each perforated plate semi-closed conductive combination comprises a perforated plate, conductive bands, purifying copper sheets A and B, and heating copper sheets A and B; a square hole shaped fresh air channel with the side length being 1 to 20mm is formed in the perforated plate; the conductive bands are printed or sprayed on the two outer surfaces of the perforated plate; the purifying copper sheets A and B and the heating copper sheets A and B are respectively adhered to the two ends of the conductive bands on the two outer surfaces of the perforated plate; the perforated plate semi-closed conductive combinations and the corrugated pieces form 90 degrees and are assembled alternately and crosswise. The perforated plate fresh air introducing and purifying device has the benefits that new pollutant, such as ozone and the like, is not produced, energy can be efficiently recycled, condensation cannot be produced when the device is used in cold regions, and meanwhile the purification efficiency is high.

The invention discloses a method for processing industrial wastes of edible vinegar through an anaerobic digestion coupling pyrolysis technology, and belongs to the field of the high-efficiency recycle of organic solid wastes. The method comprises the following steps: mixing vinegar residues with water and an inoculum, adding the obtained mixture to a CSTR anaerobic digestion reactor, and carrying out an anaerobic digestion biogas generation reaction; and carrying out solid-liquid separation of an anaerobic digestion reaction discharge material, mixing the obtained separated biogas slurry with new vinegar residues to a constant volume, allowing the obtained new mixture to the CSTR reactor, continuously carrying out the anaerobic digestion biogas generation reaction, drying the obtained biogas residues, allowing the dried biogas residues to enter a single-stage tubular pyrolysis furnace, and carrying out a pyrolysis reaction. Compared with the prior art, the method disclosed in the invention has the advantages of enhancement of the stability and the load change buffer capability of an anaerobic digestion system, improvement of the biogas generation rate and the recycle rate of the vinegar residues, and simultaneous reaction of the liquid phase product proportion of the pyrolysis process.