5 results about "Joule" patented technology

The application relates to an ITO waste target recycling and purifying indium device and method based on Joule heat. The device is a vertical integrated cavity, which comprises a water-cooled condensing plate and a gradient concentration layered reaction bed, uses solid NH4Cl to replace Cl2, and is provided with an in-situ resistance monitoring terminal point. A thermodynamic theory-XGBoost initial prediction-Bayesian self-learning three-module cooperative system is constructed: based on the Clausius-Clapeyron equation, In / Sn is separated, and parameters are optimized through 10-15 groups of experiments based on the Bayesian. The application has the advantages of high recovery rate, high purity and intelligent parameter determination.

The present application relates to a method for simulating and analyzing the fluid inside the arc extinguishing chamber of an SF6 circuit breaker by introducing electromagnetic thermal effects, and relates to the technical field of fluid simulation analysis inside the arc extinguishing chamber of a circuit breaker. The method comprises: obtaining a target physical quantity; the target physical quantity is a physical quantity directly related to the control equation of the fluid region; the target physical quantity includes the Joule heat value of the high-voltage current and the Lorentz force value generated by the current that varies with time; constructing a simulation model of the fluid inside the arc extinguishing chamber based on the target physical quantity; solving the simulation model of the fluid inside the arc extinguishing chamber based on the real parameter fitting interpolation method, and obtaining the simulation analysis results corresponding to the simulation model of the fluid inside the arc extinguishing chamber; the simulation analysis results are used to evaluate the performance of the SF6 circuit breaker. The use of this method can improve modeling efficiency and simulation effects.

The present application relates to the technical field of power transmission line engineering and geotechnical engineering, and discloses a method, system, device and medium for calculating the stress of a tower slope under lightning impact, which collects lightning current waveform data of the tower under lightning impact, calculates the power density of Joule heat source, and establishes a three-dimensional slope geometric model corresponding to the influence range of lightning impact on the slope soil body; the power density of the Joule heat source is input into the three-dimensional transient heat conduction equation, and combined with the established geometric model, the maximum temperature rise value of the slope soil body under lightning impact is determined, so as to convert the temperature change into soil stress and obtain the initial lightning impact stress value; the correction coefficient is determined by the lightning current waveform data and multi-dimensional influence data to correct the initial lightning impact stress value, and the transient stress value of the tower slope under lightning impact is obtained; the present application fully considers the coupling of electric-thermal-mechanical multi-physical fields and the microsecond-level transient effect, and greatly improves the calculation accuracy of the transient stress of the tower slope under lightning impact.

The present application relates to the technical field of electrical sensor, solve the technical problems of lacking physical constraint, the diagnosis result may violate the basic law of thermodynamics, sensitive to the distribution change of training data, and the monitoring accuracy is limited, especially relates to a kind of cable sheath comprehensive online monitoring method and system, the steps of this method are: collecting the original electrical signal of target cable, according to original electrical signal through filtering time stamp encapsulation processing, obtain synchronous data frame, the present application is based on graph neural network simultaneously using cable topological graph structure, provides the distribution input of joule heat source containing topological dependence, can greatly improve the identification accuracy, form the linkage effect of spatial topology and heat field propagation, further optimize fault location precision, avoid unnecessary excavation repair, save cost, and the diagnosis result obtained can directly guide operation and maintenance decision, greatly improve operation and maintenance work efficiency.

To provide a temperature prediction method in the vicinity of a current-carrying contact based on heat generation through Joule heat generated when carrying a current while sliding and moving a sliding surface of a contact strip along a trolley wire.SOLUTION: The temperature prediction step includes a step of calculating a reaching temperature at a distance X from the sliding surface based on a potential distribution in the slider during energization, and a position temperature calculation step of calculating a normalized temperature normalized by an initial temperature of the sliding surface and the reaching temperature at the distance X with respect to a thermal diffusion time which is a function of the distance X at the position temperature of the distance X.SELECTED DRAWING: Figure 3