Course detail

Electrical Heat Technology

FEKT-MPA-ELTAcad. year: 2026/2027

Opening part of the subject is devoted to the calorimetry and the heat transfer. Student deepens his knowledge in this theory and uses these knowledges for solving problems in numerical exercises. The main part is focused on the individual type of electric heatings. It's resistant heating, electric arc heating, inductive, dielectric and microwave heating. Modern conceptions are represented by the plasma, laser, electron and infrared heating. Student gets to know the physical nature and theory of individual heatings and the basic electrothermal applications in the industrial area.The higher attention is devoted to the resistance crucible furnace and its design and electric arc furnace and settings of optimal parameters of furnace working.

Language of instruction

English

Number of ECTS credits

5

Mode of study

Not applicable.

Guarantor

doc. Ing. Ilona Lázničková, Ph.D.

Department

Department of Electrical Power Engineering (UEEN)

Entry knowledge

The subject knowledge on the Bachelor´s degree level is requested.

Rules for evaluation and completion of the course

During the term the students can obtain max. 30 points - final test, 2 individual works, laboratory reports.
Examination (max. 70 points) includes only oral part.

Requirements for successful completion of this subject are determined by a annual regulation of the lecturer.

The content and forms of instruction in the evaluated course are specified by a regulation issued by the lecturer responsible for the course and updated for every academic year.

Aims

Course content is to apprise students of basic theory of basic and special types of the electrothermal heatings and their technical applications.
Graduate from this subject is able to:
- define and describe the basic quantity of the electrothermal technology, heat transfer, calorimetry and calculate them,
- design and calculate the basic parameters of electrical heating elements of electrical resistance crucial furnace,
- enumerate the types of electrothermal heatings and explain their physical nature,
- enumerate and describe the technical applications of electrothermal heatings.

Study aids

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

Goňo R., Hradílek Z., Král V.: Power Plants (part 3) Electro-Thermal Technology, VŠB - Technical University of Ostrava, Ostrava 2015. (EN)

Recommended reading

Not applicable.

Classification of course in study plans

  • Programme MPA-EEN Master's 1 year of study, summer semester, compulsory, profile core courses

Type of course unit

 

Lecture

26 hours, optionally

Teacher / Lecturer

doc. Ing. Ilona Lázničková, Ph.D.

Syllabus

Introduction to electrothermal technology, basic quantities, units

Heat transfer, conduction, convection, radiation,

Materials for electrothermal devices

Temperature measurement in electrothermal technology, measurement principles

Resistance (non) direct heating, heating elements, resistance furnaces

Design of a resistance crucible furnace for melting aluminum

Arc, arc heating, arc furnaces, circular and working diagram of an arc furnace

Plasma, plasma heating, plasma melting furnaces

Induction heating

Dielectric heating, microwave heating

IR, laser and electron heating

Fundamentals seminar

10 hours, compulsory

Teacher / Lecturer

doc. Ing. Ilona Lázničková, Ph.D.

Syllabus

Basic concepts and quantities of electric heat, calorimetry.

Analogy between electric and temperature fields.

Heat transfer - conduction, convection, radiation, complex cases of heat transfer.

Design and calculation of heating elements.

Design of a resistance crucible furnace.



Laboratory exercise

16 hours, compulsory

Teacher / Lecturer

doc. Ing. Ilona Lázničková, Ph.D.

Syllabus

    1. Measurement of emissivity of non-transparent bodies

    2. Measurement of characteristic quantities of resistive materials

    3. Measurement of thermal conductivity of materials

    4. Thermocouples – effect of placement on the accuracy of surface temperature measurement