COMPEL - The international journal for computation and mathematics in electrical and electronic engineering: Volume 39 Issue 1

Guest editorial

Optimization of electroslag melting towards to titanium morphology improvement in combined Kroll process

The paper aims to optimize calcium difluoride electrical melting process towards creating titanium production with improved morphology by combining titanium reduction and…

Optimal design methods for the uniform heating of tube ends for stress relieving

An inductor for the uniform heating of the extremity of a ferromagnetic steel tube for stress relieving is considered. The main goal of the study is to investigate the possibility…

Numerical simulation and verification of MHD-vortex

The purpose of this study is research and development of the magnetohydrodynamics (MHD)-vortex technology.

Shape optimization of soft magnetic composite inserts for electromagnetic stirrer with traveling magnetic field

The purpose of this paper is to search optimal shape of soft magnetic composite-based inserts used to compensate the working gap between the liquid metal and the induction stirrer…

Cold crucible melting with bottom pouring nozzle

The purpose of this paper is to investigate a new type of nozzle which is free from erosion and non-contaminating the outflow metal. Cold crucible melting technique with…

Calibration of laser welding model based on optimization techniques

The purpose of this paper is to present the calibration of a laser welding model suitable for solving problems with input data that are either unknown or known only approximately.

Optimal heat induction treatment of titanium alloys

This paper aims to propose a number of approaches to reduce the temperature gradient of titanium billets in the heat treatment process.

On the induction heating contribution in magnetic pulse forming processes for tube forming application

The purpose of this paper is to study the influence of the induction heating phenomenon during magnetic pulse forming (MPF) of thin walled tube components. The approach is based…

Hierarchical shape optimization of one-sided transverse flux heating induction coil

The transverse flux heating (TFH) concept offers very high electrical efficiency in combination with unique technological flexibility. Numerous advantages make this method beyond…

Search optimal control of induction heating modes for a moving workpiece

This paper aims to create mathematical models and control algorithms allowing the authors to study and form effective modes of operation of multi-inductor system of electrical…

Effective methods for optimal design of induction coils on example of surface hardening

This paper aims to describe main ideas and demonstrates results of the research activities carried out by the authors in the field of optimal design concepts for induction heater…

Tailored heating of forging billets using induction and conduction heating approaches

This paper aims to deal with different induction and conduction heating approaches to realize a tailored heating of round billets for hot forming processes. In particular, this…

Numerical modelling of heat transfers between inductively heated metallic and dielectric phases

Heating with a low-frequency induction is a key phenomenon in a process dedicated to the treatment of nuclear wastes. This paper aims to present a step of the numerical model…

Investigation of heating and melting in ELTA programs

The purpose of this paper is obtaining the optimal parameters of induction heating and melting systems by use of the new programs ELectro-Thermal Analysis (ELTA) 8.0 and Induction…

Influence of vessel dimensions on particles homogenization and heat removing in TMF stirrer

The purpose of this paper is to determine how the shape of the container affects the efficiency of a traveling magnetic field (TMF) stirring.

A parallel multi-fidelity optimization approach in induction hardening

Reliable modeling of induction hardening requires a multi-physical approach, which makes it time-consuming. In designing an induction hardening system, combining such model with…

A novel multi-surrogate multi-objective decision-making optimization algorithm in induction heating

Most of optimal design or control engineering problems present conflicting objectives that need to be simultaneously minimized or maximized. Often, however, it is a priori known…

Simulation and experimental studies of induction hardening behavior of a new medium-carbon, low-alloy wear resistance steel

The purpose of this work is to determine the induction hardening behavior of a new steel composition. For this purpose, Flux2D commercial software together with a Gleeble…

Approaches for increasing the lifetime of single-shot coils

The purpose of this study is now to optimize the coil in a way that its lifetime is increased. In the industry, induction hardening of rotationally symmetrical workpieces in a…

Investigation on the induction stirring effect in a laboratory scale crucible with the variation of electrical supply parameters

This paper aims to study the possibility of controlling the electromagnetic stirrer (EMS) is fundamental in a continuous casting line to achieve the desired properties of…

Improving induction tube welding system performance using soft magnetic composites

This paper aims to demonstrate the benefits of using different impeder materials for induction tube welding systems.

Study of an aluminium mixing system based on permanent magnets

The purpose of this paper is to investigate the effect of the rotating magnetic field of permanent magnets on the aluminium melt bath.

Design tools for electromagnetic-driven multi-physics systems using high performance computing

The design of electromagnetic systems for a variety of applications such as induction heating, electrical machines, actuators and transformers requires the solution of a…

Performance of 450 kW permanent magnet heater for aluminum billets

The purpose of this paper is to present the main experimental results obtained on the first prototype of an innovative induction heating system. MAGNHEAT was a LIFE project…

Three-dimensional numerical study of heat-affected zone in induction welding of tubes

Quality of the weld joint produced by high-frequency induction (HFI) welding of steel tubes is attributed to a number of process parameters. There are several important process…

Comparison of simplified techniques for solving selected coupled electroheat problems

The purpose of this paper is to compare different reduced-order models for models of control of induction brazing process. In the presented application, the problem is to…

Optimal design of the compensation networks of an inductive wireless power transfer system

This paper aims to present an approach to the design of the compensation networks (CNs) based on a genetic optimization algorithm. The algorithm is applied to CNs with T-topology…

Design and control of electrotechnological systems: A multi-objective optimization approach

This paper aims to investigate different multi-objective optimization (MOO) approaches for design and control of electromagnetic devices. The main goal of MOO is to find the set…