10 results about "Medium energy" patented technology

The invention discloses an energy path optimization method for a multi-medium hybrid energy storage unit, relates to the technical field of energy path optimization, is used for solving the problems of unbalanced energy paths and insufficient system circulation activity, and aims to optimize the energy path by detecting the last energy charging and releasing time of each energy storage unit, calculating the energy retention time and marking the energy storage unit. Acquiring charge-discharge cycle times and historical charge-discharge data of the marked energy storage unit, judging whether an energy transfer mechanism is entered or not, screening a target energy storage unit according to the medium type of the marked energy storage unit when the energy transfer mechanism is entered, analyzing discharge current and heat exchange flow of the target energy storage unit to determine an energy receiving characteristic, whether the retention energy of the marked energy storage unit is transferred to the target energy storage unit or not is judged according to the energy receiving characteristics, the problem of efficiency reduction caused by energy retention of part of the energy storage units in long-term operation of the multi-medium energy storage unit is solved, and balance and circulation activation of an energy path are achieved.

The invention relates to the field of application of dielectric energy storage materials, and discloses application of a polyimide film in a dielectric energy storage material. The polyimide is prepared by copolymerizing bis [4-(4-aminophenoxy) phenyl] sulfone and 4, 4 '-(hexafluoroisopropene) diphthalic anhydride, or copolymerizing bis [4-(3-aminophenoxy) phenyl] sulfone and 4, 4'-(hexafluoroisopropene) diphthalic anhydride, or copolymerizing bis [4-(3-aminophenoxy) phenyl] sulfone and 4, 4 '-(hexafluoroisopropene) diphthalic anhydride. Ether bonds are introduced to two sides of diphenyl sulfone to destroy a continuous conjugated structure between an imide ring and diphenyl sulfone, hexafluoroisopropylene with high electronegativity is introduced into a dianhydride unit, and high-temperature insulativity is improved through interaction of the three. When the prepared polyimide film is used as a dielectric medium energy storage material, the high-temperature insulation property is improved while the heat resistance and the relatively high dielectric constant are maintained, so that the energy storage property of a capacitor is improved. The discharge energy density of 7.25 J / cm < 3 > and 4.79 J / cm < 3 > is realized at 200 DEG C and 250 DEG C respectively, and the efficiency is greater than 90%.

The invention discloses a cross-medium energy coupling recycling method and system in main and auxiliary power switching, and relates to the technical field of ship power system energy recovery, and the method comprises the steps: capturing a multi-medium waste energy flow in a ship main and auxiliary power switching process in real time through a multi-mode sensing network; generating a feature data set comprising an energy entropy mapping table, a medium compatibility matrix and a dynamic recoverable threshold; calculating an optimal energy conversion path and a storage strategy, and generating a multi-objective optimization decision set; the heterogeneous energy recovery device is driven to execute cross-medium energy coupling operation, and energy conversion efficiency and system stability indexes are fed back in real time; and according to the deviation degree between the feedback data and a preset energy efficiency target, generating an energy reutilization efficiency evaluation report and a model adaptive log. According to the cross-medium energy coupling recycling method and system in main and auxiliary power switching, the energy recycling efficiency under the condition of ship working condition transition is improved.

The application discloses a crude oil water content analysis method and device. The method comprises the following steps: obtaining low, medium and high energy level light quantum detection data of a penetrating crude oil sample; calculating photoelectric effect cross section coefficients of low and medium energy levels, simultaneously solving oil, gas and water phase fractions and calculating a first mixed density; combining Compton reaction cross section coefficient of high energy level data to calculate a second mixed density; comparing the deviation of the two mixed densities, if the deviation is greater than a preset threshold, the detection time is automatically extended for re-measurement; if the deviation is still greater than the preset threshold, it is determined that the sample is in a gas-containing or non-full-liquid state, the high energy level calculation result is actively removed, and only the low and medium energy level data are used to solve the phase fraction and normalized output the final water content. The application innovatively introduces a density deviation check and a dynamic delay mechanism, effectively distinguishes and separates the gas phase interference, and realizes non-contact and high-precision automatic water content detection.

The application discloses an energy path optimization method for a multi-medium mixed energy storage unit, relates to the technical field of energy path optimization, and is used for solving the problems of unbalanced energy path and insufficient system cycle activity. The last energy charging and discharging time of each energy storage unit is detected, the energy retention duration is calculated and the energy storage unit is marked, the charging and discharging cycle number and historical charging and discharging data of the marked energy storage unit are acquired, it is judged whether to enter an energy transfer storage mechanism, when the energy transfer storage mechanism is entered, the target energy storage unit is selected according to the medium type of the marked energy storage unit, the discharge current and heat exchange flow of the target energy storage unit are analyzed to determine the energy receiving characteristics, and it is judged whether to transfer the retained energy of the marked energy storage unit to the target energy storage unit according to the energy receiving characteristics. The efficiency decline problem caused by the energy retention of part of the energy storage units in the long-term operation of the multi-medium energy storage unit is solved, and the balance of the energy path and the cycle activation are realized.

An n-type SiC (10, 20) for forming an n-type silicon carbide substrate doped with an n-type impurity is prepared. Next, the emission spectrum intensity caused by an energy level formed in the vicinity of the middle energy gap of SiC by a p-type impurity mixed in n-type SiC is measured by excitation-based emission spectrum measurement. Then, the emission spectrum intensity is compared with a reference value set on the basis of the emission spectrum intensity corresponding to the medium energy gap, and a quality determination is performed for determining whether the n-type SiC is a reference product.

This invention provides a method and apparatus for generating an optical frequency comb based on coherent Thomson scattering. The method includes: providing a relativistic electron beam; periodically density modulating the relativistic electron beam to form an equally spaced ultrashort cluster structure; and colliding the density-modulated relativistic electron beam with an incident laser beam to induce coherent Thomson scattering, thereby generating the optical frequency comb. This invention, by directly periodically density modulating the electron beam and utilizing the principle of coherent Thomson scattering to interact with the laser, can achieve a precisely controllable optical frequency comb with a sub-femtosecond pulse train in the time domain at relatively low electron beam energy. It eliminates the need for an optical cavity and can generate optical frequency combs for extreme ultraviolet and soft X-rays based on a medium-energy relativistic electron beam, simplifying the system structure. Furthermore, the lower required electron beam energy makes the apparatus more compact.

The present application relates to a kind of variable chamber time projection chamber of low-energy single-energy neutron energy measurement, low-pressure working gas is filled in sealed chamber inside;Polyethylene support column is installed in sealed chamber, and a plurality of mounting slots are provided on polyethylene support column;Multiple cathode plate support is fixed on the mounting slot of polyethylene support column, and the mounting slot position can be replaced along the direction of polyethylene support column, and the moving step of replacement is centimeter level, anode plate is arranged at the lower bottom plate of sealed chamber;Grid plate support is fixed on the mounting slot of polyethylene support column, and the mounting slot position can be replaced along the direction of polyethylene support column, and the moving step of replacement is millimeter level;Single-energy neutron and low-pressure working gas scatter to form electron-ion pair, and move to anode plate along the direction of electric field.By setting variable chamber time projection chamber, the spacing between grid plate and anode plate can be adjusted, the error of recoil nuclear angle is reduced, the energy resolution is improved, and the neutron energy measurement uncertainty can be reduced to within 10%.

The invention belongs to the technical field of barreling finishing machining, and provides an energy transfer and dissipation calculation method and system for vibration polishing, and the calculation method comprises the steps: obtaining microscopic contact mechanics and kinematics data between particles, between particles and a vibration body, and between particles and a workpiece through analog simulation; identifying the contact event set within a preset time, dividing into a plurality of space sub-regions, and performing grouping processing on the data; for any contact event, calculating transmission energy and dissipation energy in the vibration polishing and grinding system within a preset time based on an energy transmission model; and outputting an energy index set, and completing quantitative characterization of the vibration polishing and grinding energy characteristics. According to the energy transfer and dissipation calculation method and system for vibration polishing and grinding, quantitative characterization of particle medium energy transfer and dissipation in the vibration polishing and grinding process can be achieved, and a basis is provided for vibration polishing and grinding parameter optimization, energy consumption evaluation and flow field regulation and control.

The invention provides an optical frequency comb generation method and device based on coherent Thomson scattering. The method comprises the following steps: providing a relativistic electron beam; periodic density modulation is carried out on the relativistic electron beams, so that the relativistic electron beams form equidistant ultra-short bunching structures; the relativistic electron beam after density modulation collides with a beam of incident laser, coherent Thomson scattering occurs, and an optical frequency comb is generated. According to the invention, the electron beam is directly subjected to periodic density modulation, and the coherent Thomson scattering principle is utilized to act with the laser, so that the accurate and controllable space between the optical frequency comb teeth can be realized with relatively low electron beam current energy, and the optical frequency comb is a sub-femtosecond pulse string in the time domain; an optical cavity is not needed, an extreme ultraviolet and soft X-ray optical frequency comb can be generated based on a medium-energy relativistic electron beam, and the system structure is simplified; and the required electron beam energy is low, so that the device is more compact.