On power stream in motor or drive system

• Autorzy: Paszota Z.

Identyfikatory

DOI

10.1515/pomr-2016-0074

• Języki publikacji: EN

Abstrakty

EN

In a motor or a drive system the quantity of power increases in the direction opposite to the direction of power flow. Energy losses and energy efficiency of a motor or drive system must be presented as functions of physical quantities independent of losses. Such quantities are speed and load. But the picture of power stream in a motor or drive system is presented in the literature in the form of traditional Sankey diagram of power decrease in the direction of power flow. The paper refers to Matthew H. Sankey’s diagram in his paper „The Thermal Efficiency of Steam Engines” of 1898. Presented is also a diagram of power increase in the direction opposite to the direction of power flow. The diagram, replacing the Sankey’s diagram, opens a new prospect for research into power of energy losses and efficiency of motors and drive systems.

Słowa kluczowe

EN

motors; drive systems; energy losses; energy efficiency; Sankey diagram; new research field

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2016
• Tom: nr 4
• Strony: 93--98
• Opis fizyczny: Bibliogr. 4 poz., rys.

Twórcy

autor

Paszota Z.

• Gdansk University of Technology 11/12 Narutowicza St. 80-233 Gdansk Poland, Poland

Bibliografia

• 1. Sankey M. H.: The Thermal Efficiency of Steam Engines. „Minutes of Proceedings of the Institution of Civil Engineers”. CXXXIV (1897 - 1898, Part IV). Reprint in Journal of the American Society of Naval Engineers. Vol. XI.NO.4. November, 1899. pp. 949 ÷975. ( Retrieved from University of Michigan)
• 2. Paszota Z.: Losses and energy efficiency of drive motors and systems. Replacement of the Sankey diagram of power decrease in the direction of power flow by a diagram of power increase opposite to the direction of power flow opens a new perspective of research of drive motors and systems. Polish Maritime Research 1/2013
• 3. Feature/Eastern Europe: Driving a new perspective. Professor Zygmunt Paszota, faculty of ocean engineering and ship technology, Gdansk University of Technology, Poland, explains a new approach to the Sankey Diagram for drive motors. The Naval Architect, May 2013, pp. 72 ÷ 76,
• 4. Paszota Z.: Energy losses in hydrostatic drive. Drive investigation method compatible with diagram of power increase opposite to the direction of power flow. LAP LAMBERT Academic Publishing, 2016

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.