9 results about "Thermodynamic process" patented technology

The application relates to the technical field of aircrafts, and discloses a calculation method, equipment and medium for the multi-physical effect of ablation particles, the method comprising the following steps: acquiring equivalent inertia items induced by respective multi-physical effects; calculating a multi-physical particle dynamics process according to a particle sliding resistance item and the equivalent inertia items induced by the respective multi-physical effects; performing dimensionless processing on a radiation heat transfer equation of spherical particles in the volume of an arbitrary sampling unit to obtain a dimensionless radiation heat transfer equation; and calculating a thermal radiation particle thermodynamic process by using the dimensionless radiation heat transfer equation. The method can reflect complex physical processes under extreme mechanical environments, ensure that numerical simulation can reproduce the original appearance of ablation physics, has engineering interaction of ablation problems, automatically performs dimensionless processing, avoids numerical rigidity caused by dimensional differences of different physical problems, and fills the gap that the prior art cannot calculate complex processes of multi-physical effects of ablation particles under extreme mechanical conditions.

The invention relates to a cyclic thermodynamic process system (20) comprising a first heat exchanger (21), a pressure-increasing device (23), a second heat exchanger (24), and a pressure-reducing device (26, 37). The first heat exchanger (21) is designed to heat a process medium, said process medium thereby absorbing thermal energy; the pressure-increasing device (23) is designed to increase the pressure of the process medium downstream of the first heat exchanger (21) and upstream of the second heat exchanger (24); the second heat exchanger (24) is designed to cool the process medium, said process medium thereby dissipating thermal energy; and the pressure-reducing device (26, 37) is designed to reduce the pressure of the process medium downstream of the second heat exchanger (24) and upstream of the first heat exchanger (21). The pressure-increasing device (23) is part of a hermetically sealed turbomachine assembly (27), said hermetically sealed turbomachine assembly (27) having an electric machine (28), and process medium which serves to cool the turbomachine assembly (27) can be branched off downstream of the second heat exchanger (24).

The invention relates to a method for calculating independent entropy in a thermodynamic process, which specifically comprises the following steps of: describing a thermodynamic process, and dividing the thermodynamic process into independent reversible processes; establishing an independent entropy of an independent reversible process: obtaining a heat capacity value, a reversible point and a phase change in the reversible process according to thermodynamic data; substituting into an independent heat capacity entropy formula, and solving the independent heat capacity entropy; all the reversible processes form a unit entropy, and the thermodynamic value is substituted into a formula of the independent phase change entropy to obtain the independent phase change entropy; according to an independent heat capacity entropy and phase change entropy method, an independent standard entropy is determined. Substituting each independent reversible process median into an independent standard entropy formula to obtain an independent standard entropy; and finally, drawing a geometric diagram of the independent standard entropy according to an independent standard entropy formula by using the heat capacity value, the reversible point and the phase change enthalpy value in each reversible process. The heat effect of the heat capacity process in the calculated independent heat capacity entropy is in one-to-one correspondence with the temperature interval of the heat capacity process, and a real heat capacity entropy can be obtained.

A thermodynamic process and system for material modification including software procedures and methodologies comprising specialized thermodynamics processes. The system applies thermal bonding and division through thermal contrasting in nuclear technology, medicine, computing, and military operations. The process uses heat to bond fibers while employing contrasting temperatures to maintain different thermal zones in confined areas for specific results. The system emphasizes absolute containment to prevent contamination and organizes disordered cells, atoms, and mechanisms. Both automated algorithms and operator technicians provide oversight to verify data within the system database using current and real-time information.

The invention discloses a theoretical combustion temperature prediction method and device for a blast-furnace tuyere. The method comprises the steps that input material parameters, input material types and output material types of a rotation area are obtained; determining the amount of substance of an output substance based on the input substance parameter, the output substance type, coke consumption and a plurality of chemical reaction paths; determining total chemical reaction heat based on the input material parameters and the plurality of chemical reaction paths; based on the amount of substance of the input substance, the total chemical reaction heat, the input substance parameters, the amount of substance of the output substance, the phase change latent heat, the solid crystal transition heat and a pre-established molar constant pressure heat capacity model, determining the theoretical combustion temperature of the convolution area; according to the method, accurate modeling of the thermodynamic process of the gyration area and high-precision calculation of the combustion temperature under the condition of multiple injection media can be achieved, and the accuracy and applicability of energy balance analysis of the blast-furnace tuyere gyration area are improved.

The invention discloses a method and system for quantitatively calculating reheater outlet parameters based on fuel quantity changes, and belongs to the technical field of thermal equipment performance state monitoring and diagnosis. According to the method for quantitatively calculating the outlet parameters of the reheater based on the fuel quantity change, a complex thermodynamic process is converted into a computable mathematical model in combination with a differential thought, thermodynamic parameters are obtained based on a thermodynamic chart and the actual operation condition of a unit, unit operation data are collected, and the outlet parameters of the reheater are calculated in combination with a constructed calculation equation. According to the method, the problem that the steam pressure and the steam temperature of the reheater outlet are difficult to quickly, accurately and quantitatively calculate due to the change of the fuel quantity is solved, so that an operator can quickly obtain required information and further take corresponding adjustment measures according to actual conditions, and the accuracy and the reliability of the reheater outlet are improved. And safe, stable and efficient operation of the unit is ensured.

The scheme designs a kind of coupling calculation method of cavern thermodynamics and cavern wall heat conduction based on one-dimensional heat conduction, according to the equality of the convective heat transfer power of cavern air and cavern wall and the surface heat conduction power of cavern wall obtained based on temperature distribution, the sealing layer temperature T m is obtained m , and the sealing layer temperature T m is taken as the boundary condition, the cavern air thermodynamics calculation and the one-dimensional heat conduction calculation of cavern wall are carried out respectively, the cavern air temperature and pressure are obtained through the cavern air thermodynamics calculation, the temperature distribution of cavern wall along the radial direction is obtained through the one-dimensional heat conduction calculation of cavern wall until the end of the set calculation time, the change of surrounding rock temperature in the whole process is obtained, so as to realize the coupling of the thermodynamic process of air in cavern and the heat transfer process of surrounding rock of cavern wall.

The invention discloses a segmented superplastic deformation method of titanium alloy and related equipment, and the method comprises the following steps: selecting a corresponding preset number of titanium alloy samples with the same material characteristic parameters, and averagely dividing the plurality of titanium alloy samples into a first group of samples and a second group of samples through random grouping; treating the first group of samples under a first superplastic deformation condition, wherein the first superplastic deformation condition comprises thermodynamic process parameters, a first subsection superplastic deformation strategy and a subsection superplastic deformation termination condition; and treating the second group of samples under a second superplastic deformation condition, wherein the second superplastic deformation condition comprises the thermodynamic process parameters, a second subsection superplastic deformation strategy and a subsection superplastic deformation termination condition. According to the embodiment, automatic superplastic deformation of the titanium alloy can be achieved, and the ultimate superplastic potential of the titanium alloy is fully excavated. The method can be widely applied to the technical field of superplastic deformation processing of metal materials.

The invention discloses a hammer forging forming method of a GH4169 alloy turbine front sealing disc forge piece, and belongs to the technical field of metal plastic processing. The method comprises the steps of blank making, stepped heating, hammer forging forming and heat treatment. According to the hammer forging forming, a blank is transferred to a mold preheated to be larger than or equal to 425 DEG C within 50 seconds or less, and specific three-stage hammering is carried out, wherein initial hammering with 50% energy is carried out twice; then hammering for 16-19 times at the rhythm of'yo-yo-yo-hit 1 'at the interval of 4-6 seconds at 100% energy; and finally, carrying out 100% energy continuous click for 8-12 times. And the total forging time is controlled to be 100-120 seconds. Through cooperative control of the transfer time, the hammering rhythm, the hammering times and the total time, the thermodynamic process of the core and the surface of the forged piece is effectively balanced, and the technical problems that when the GH4169 alloy is subjected to hammer forging, grains of the core are coarse due to reverse heat, and mixed crystals are generated on the surface due to temperature drop are successfully solved; the total cross-section grain size of the high-quality forge piece is larger than or equal to 8 grades, and coarse grains do not exist on the surface.