410-4118/01 – Energy Problems of Electrical Heating Equipment (EPEZ)
| Gurantor department | Department of Electrical Power Engineering | Credits | 6 |
| Subject guarantor | doc. Ing. Vladimír Král, Ph.D. | Subject version guarantor | doc. Ing. Vladimír Král, Ph.D. |
| Study level | undergraduate or graduate | Requirement | Optional |
| Year | 1 | Semester | summer |
| | Study language | Czech |
| Year of introduction | 2010/2011 | Year of cancellation | 2021/2022 |
| Intended for the faculties | FEI | Intended for study types | Follow-up Master |
Subject aims expressed by acquired skills and competences
After completing the course the student can apply the theory to the design of electric heating method, can assess the interference effects of electro-thermal devices on the power grids and suggest possibilities of their limitation. In exercises, laboratories, and projects, it demonstrates the ability to calculate and design electro-thermal devices with computer support when applying a variant solution.
Teaching methods
Lectures
Tutorials
Experimental work in labs
Project work
Other activities
Field data collection
Summary
The course focuses on industrial applications of resistance, induction, arc, dielectric, electron and laser principles of utilization of transformation of electric energy into thermal energy, their optimization with regard to energy consumption and elimination their disturbances on the supply network. It also includes energy issues of electrical heating.
Compulsory literature:
Recommended literature:
Hradílek, Z. Teoretical aspects of alternative proposals of electric heating. Ostrava: Sborník vědeckých prací VŠB TUO 1999
Hradílek, Z. Alternative proposal of electric heating in closed spaces. Lisabon: U.I.E. Congress Lisabon Portugal 2000
Hradílek, Z. at. all Cooperation on Engineering Education Computer Aided Disign and Work Simulation of Electric Furnaces and Heaters. Ostrava: Proceedings of International Conference ICEE 1999, Ostrava
Way of continuous check of knowledge in the course of semester
Terms of the credit:
Detailed points specification is at http://fei1.vsb.cz/kat451/studium/f_studium.htm in studium section of this course.
Process projects in time, observe required format and manner of delivery.
Carry out in addition:
From each of tasks get 1 point minimally.
Each of tasks is possible to deliver only once.
E-learning
Other requirements
There are not defined other requirements for student.
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
Lectures:
Electrical resistance heat
Alternative power supply for electric heating. Automatic control of heating.
Determination of distribution transformers power reguirement supplying electric heating. Dependence on the outdoor temperature.
Connection and protection heating appliances. Bleeder load (demand limiter).
Floor heating power supply.
EAF side effect.
Current flicker source of EAF. Types of voltage flicker.
Possibilities of flicker restriction of EAF.
Power factor compensation of EAF.
EAF mode control, computer control.
Reduction of energy consumption. PC Diagnostic
Optimization of energy mode of EAF by reactor
Asymmetric load of inductive devices.
Power supply for high frequency surface heating.
Exercises:
Proposal of power supply for direct and indirect resistance heating.
Heating with heating chains, belts and cables. Industrial applications.
Power supplies for heating with heating chains and belts. Control systems. Safety factor.
Types of electric heating, design and use.
Control and economy.of electric heating
EAF energy mode. Stages of melting and their energy demand factor.
Methods of energy mode control.
Basic parameters of electric arc. Influences of the energy transfer.
Back effects of EAF on the power system, their reduction. Voltage and power factor compensation.
Economic evaluation of the EAF operation, optimization of supply mode.
Inductive appliances, applications, power supplies. The issue of asymmetric load of inductive appliances.
Proposal of inductive devices with PC support.
Projects:
Optimization of direct resistance heating with the aid of simulation SW.
Performance characteristics of EAF.
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction