Browsing Research Output by Author "Dobzhanskyi, O."
Now showing items 1-11 of 11
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3-D Finite element method analysis of twin-armature permanent magnet motor with two degrees of mechanical freedom
Dobzhanskyi, O.; Gouws, R. (Springer, 2016)In this paper, the authors present a twin-armature rotary–linear permanent magnet (PM) motor. The stator consists of two armatures which generate two rotating magnetic fields and the rotor consists of two rigidly coupled ... -
Comparison analysis of AC PM transverse-flux machines of different designs in terms of power density and cost
Dobzhanskyi, O.; Gouws, R.; Amiri, E. (IEEE, 2017)This paper compares four different configurations of PM transverse-flux machines. The permanent magnet transverse flux machines with: internal rotor; outer rotor with magnetic shunts; double coil; and outer rotor without ... -
Comparison analysis of electric motors with two degrees of mechanical freedom: PM synchronous motor vs induction motor
Dobzhanskyi, O.; Amiri, E.; Gouws, Rupert (IEEE, 2016)This paper presents a comparison analysis of two electric motors with helical movement of the rotor. These machines are also referred to as machines with two degrees of mechanical freedom. The machines are designed in such ... -
Efficiency analysis of a three-phase power transformer
Gouws, R.; Dobzhanskyi, O. (EE Publishers, 2014)Metal, chemical, cement, concrete automobile, mining and other industries struggle to increase the efficiency of the energy they use. Three-phase power transformers play significant role in terms of energy saving, so one ... -
Efficiency analysis of a three-phase power transformer
Gouws, R.; Dobzhanskyi, O. (Crown Publications, 2015)Transformers are key elements in the industrial processes into which they are integrated. Reliability is crucial to ensure uninterrupted power supply to motors, furnaces and smelters used in a wide variety of applications ... -
Energy savings in concrete production
Dobzhanskyi, O.; Gouws, Rupert (Crown Publications, 2014)T he rapid growth of the cement and concrete industry has created the need for concrete products such as concrete pipes, culverts, manholes, slabs, piles, etc. Since the role of electric machines in the concrete industry ... -
In-line water heating system for industrial application
Dobzhanskyi, O.; Gouws, R.; Zabihi, N. (2015)Due to the increase of electricity prices in South Africa and the World, there exists the need for energy efficient water heating systems. The authors of this paper conducted a literature study on existing water heating ... -
Integration of battery and super-capacitor banks into a single-power system for a hybrid electric vehicle
Bisschoff, W.A.; Dobzhanskyi, O.; Gouws, R. (IEEE, 2016)This paper presents a study on a hybrid electric vehicle for mines and other industrial sectors. The power supply system of the vehicle is designed by combining two sources of power: a battery and super-capacitor banks. ... -
Solar power pumping system for domestic appliances
Lukhwareni, T.; Gouws, R.; Dobzhanskyi, O. (IEEE, 2014)With the world encountering huge pollution problems, use of renewable energy is being encouraged in place of fossils fuels for electricity generation. On such renewable energies is solar power. Solar powered systems are ... -
Study on energy losses in industrial sector caused by low actual efficiency of induction motors
Dobzhanskyi, O.; Gouws, R. (IEEE, 2014)This paper presents a study on energy losses in the industrial sector caused by low actual efficiency of induction motors (IMs). The main reasons are discussed and an efficiency analysis of a 3-phase induction motor, ... -
Study on energy losses in industrial sector caused by low actual efficiency of induction motors
Dobzhanskyi, O.; Gouws, R. (IEEE, 2014)This paper presents a study on energy losses in the industrial sector caused by low actual efficiency of induction motors (IMs). The main reasons are discussed and an efficiency analysis of a 3-phase induction motor, ...