Effect of the working liquid compressibility on the picture of volumetric and mechanical losses in a high pressure displacement pump used in a hydrostatic drive. Part II. Mechanical losses in a pump

• Autorzy: Paszota Z.
• Języki publikacji: EN

Abstrakty

EN

Working liquid compressibility may considerably change the values and proportions of coefficients of the volumetric and mechanical energy losses in the displacement pump used in a hydrostatic drive system. This effect can be particularly seen in the operation under high pressure and also in the system, where aeration of the working liquid can occur. In the Part II the mathematical model is presented of the torque of mechanical losses in the pump and its laboratory verification. Conclusions are drawn regarding the effect of working liquid compressibility on the mechanical and volumetric losses in the pump.

Słowa kluczowe

EN

hydrostatic drive system; pressure displacement pump; energy losses; energy efficiency; energy saving; liquid compressibility; Sankey diagram

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2012
• Tom: nr 3
• Strony: 36--44
• Opis fizyczny: Bibliogr. 26 poz., rys.

Twórcy

autor

Paszota Z.

• Faculty of Ocean Engineering and Ship Technology Gdansk University of Technology Narutowicza 11/12 80-233 Gdansk, POLAND,

Bibliografia

• 1. Paszota Z.: Graphical presentation of the power of energy losses and power developed in the elements of hydrostatic drive and control system. Part I – Rotational hydraulic motor speed series throttling control systems. Chapter in the monograph: „Research, design, production and operation of hydraulic systems” (in Polish), Adam Klich, Edward Palczak and Andrzej Meder editors. „Cylinder” Library. Komag Mining Mechanisation Centre, Gliwice 2008
• 2. Paszota Z.: Graphical presentation of the power of energy losses and power developed in the elements of hydrostatic drive and control system. Part II – Rotational hydraulic motor speed parallel throttling control and volumetric control systems. Chapter in the monograph: „Research, design, production and operation of hydraulic systems” (in Polish), Adam Klich, Edward Palczak and Andrzej Meder editors. „Cylinder” Library. Komag Mining Mechanisation Centre, Gliwice 2008
• 3. Paszota Z.: Direction of increase of power stream in the hydrostatic drive and control system. Graphical presentation of the power of energy losses and power developed in the elements of hydrostatic drive and control system. Part I – Rotational hydraulic motor speed series throttling control systems (in Polish), Napędy i sterowanie, scientific monthly, No 10 (114), October 2008
• 4. Paszota Z.: Direction of increase of power stream in the hydrostatic drive and control system. Graphical presentation of the power of energy losses and power developed in the elements of hydrostatic drive and control system. Part II – Rotational hydraulic motor speed parallel throttling control and volumetric control systems (in Polish), Napędy i sterowanie, scientific monthly, No 11 (115), November 2008
• 5. Paszota Z.: Graphical presentation of the power of energy losses and power developed in the elements of hydrostatic drive and control system. Part I – Rotational hydraulic motor speed series throttling control systems. Polish Maritime Research 3 (57) 2008, Vol. 15
• 6. Paszota Z.: Graphical presentation of the power of energy losses and power developed in the elements of hydrostatic drive and control system. Part II – Rotational hydraulic motor speed parallel throttling control and volumetric control systems. Polish Maritime Research 4 (58) 2008,Vol. 15
• 7. Paszota Z.: The operating field of a hydrostatic drive system. Chapter in the monograph: „Research, design, production and operation of hydraulic systems” (in Polish), Adam Klich, Antoni Kozieł and Edward Palczak editors. „Cylinder” Library. Komag Mining Mechanisation Centre, Gliwice 2009
• 8. Paszota Z.: Parameters of the energy efficiency investigations of pumps and hydraulic motors. The operating field of a hydrostatic drive system (in Polish), Napędy i sterowanie, scientific monthly, No 11 (127), November 2009
• 9. Paszota Z.: The operating field of a hydrostatic drive system parameters of the energy efficiency investigations of pumps and hydraulic motors. Polish Maritime Research 4 (62) 2009, Vol. 16
• 10. Paszota Z.: Energy losses in a rotational hydraulic motor – definitions and relations for evaluation of the efficiency of motor and hydrostatic drive. Chapter in the monograph: „Research, design, production and operation of hydraulic systems” (in Polish), Adam Klich, Antoni Kozieł and Edward Palczak editors. „Cylinder” Library. Komag Mining Mechanisation Centre, Gliwice 2010
• 11. Paszota Z.: Theoretical and mathematical models of the torque of mechanical losses in a hydraulic rotational motor for hydrostatic drive. Chapter in the monograph: „Research, design, production and operation of hydraulic systems” (in Polish), Adam Klich, Antoni Kozieł and Edward Palczak editors. „Cylinder” Library. Komag Mining Mechanisation Centre, Gliwice 2010
• 12. Paszota Z.: Energy losses in a rotational hydraulic motor – definitions and relations for evaluation of the efficiency of motor and hydrostatic drive (in Polish), Napędy i sterowanie, scientific monthly, No 10 (138), October 2010
• 13. Paszota Z.: Theoretical and mathematical models of the torque of mechanical losses in a hydraulic rotational motor for hydrostatic drive (in Polish), Napędy i sterowanie, scientific monthly, No 11(139), November 2010
• 14. Paszota Z.: Energy losses in the hydraulic rotational motor – definitions and relations for evaluation of the efficiency of motor and hydrostatic drive. Polish Maritime Research 2 /2010
• 15. Paszota Z.: Theoretical and mathematical models of the torque of mechanical losses in a hydraulic rotational motor for hydrostatic drive. Polish Maritime Research 3/2010
• 16. Paszota Z.: Hydrostatic drives as safe and energy saving machines (in Polish), Napędy i sterowanie, scientific monthly, No 1(141), January 2011
• 17. Paszota Z.: Hydrostatic drives as safe and energy saving machines (in Polish), Proceedings of the „Innovative machines and Technologies - Safety” conference, Szczyrk 03 – 04 February 2011
• 18. Paszota Z.: Hydrostatic drives as safe and energy saving machines. The drive investigation method compatible with the diagram of power increase opposite to the direction of power flow. Polish Maritime Research 1/2011,
• 19. Paszota Z.: Theoretical models of the torque of mechanical losses in the pump used in a hydrostatic drive. Polish Maritime Research 4 / 2011,
• 20. Koralewski J.: Influence of hydraulic oil viscosity on the volumetric losses in a variable capacity pump. Polish Maritime Research. 3/2011
• 21. Czyński M.: Laboratory investigation of the model of hydrostatic transmission energy efficiency. (in Polish). Doctor dissertation. Szczecin University of Technology, Faculty of Marine Engineering, 2005,
• 22. Koralewski J.: Effect of the working liquid viscosity on the energy losses in a variable capacity piston pump. (in Polish). Doctor dissertation (continued). Gdansk University of Technology, Faculty of Ocean Engineering and Ship Technology,
• 23. Skorek G.: Energy characteristics of the hydraulic system with proportional control of the hydraulic cylinder fed by a constant capacity pump in a constant pressure and variable pressure system. (in Polish). Doctor dissertation. Gdansk University of Technology, Faculty of Ocean Engineering and Ship Technology, 2008
• 24. Paszota Z.: Model of volumetric losses in the variable capacity displacement pump used in hydrostatic drive (in Polish). „Napędy i Sterowania’2006”. „TECHNICON’06” Gdańsk, 25.10.2006.
• 25. Paszota Z.: Aspects énergétiques des transmissions hydrostatiques. Monograph, Gdansk 2002.
• 26. Paszota Z.: Model of the energy losses in the displacement rotational machines for description of efficiency of the hydrostatic drive. Part I. Model of volumetric losses. Polish Maritime Research. 3/2000.