Abstract: The present invention relates to a minimum voltage or loss voltage shunt trip device (1) for a circuit breaker (2). The trip device (1) comprises: a loading block (7), electrically connected between a first terminal (3) and a second terminal (5), comprising a load (16) set up to activate the circuit breaker (2); a protection module (9), comprising: a thyristor for protection against over-voltages (27) and a varistor (29), in series with each other and in parallel with the loading block (7); and a first capacitor (33), in parallel with the varistor (29); a fusible element (15) and a first resistive wire (11) in series with each other, connected between the first terminal (3) and the protection module (9); and a second resistive wire (13), connected between the protection module (9) and the second terminal (5).

Abstract: This invention relates to an autonomous flow management system for regulating a multiphase flow in a pipeline-based transport system which utilises a novel computer-implemented method for predicting the multiphase fluid behaviour in the pipeline-based transport system.

Abstract: This invention relates to a computer-implemented method for predicting fluid behaviour in pipeline-based multiphase flows, wherein the method comprises applying a one-dimensional computational fluid dynamic applying a finite volume method in the solver and which estimates the mass flux out of the finite control volumes by i) applying a polynomial to spatially reconstruct the mass present in each finite control volume, ii) reconstructing the flow velocity as a function of the x-component of the flow velocity vector to determine a domain of dependence for each finite control volume representing the distance the fluid has travelled during a time step, and iii) sum the spatially reconstructed mass being present in the domain of dependence for each finite control volume and assume the summarised mass passes out of the respective finite control volume over the applied time step.

Abstract: This invention relates to a computer-implemented method for predicting fluid behaviour in pipeline-based multiphase flows, wherein the method comprises applying a one-dimensional computational fluid dynamic applying a finite volume method in the solver and which estimates the mass flux out of the finite control volumes by i) applying a polynomial to spatially reconstruct the mass present in each finite control volume, ii) reconstructing the flow velocity as a function of the x-component of the flow velocity vector to determine a domain of dependence for each finite control volume representing the distance the fluid has travelled during a time step, and iii) sum the spatially reconstructed mass being present in the domain of dependence for each finite control volume and assume the summarised mass passes out of the respective finite control volume over the applied time step.