Wyniki wyszukiwania dla: GEOMETRIC WORKING VOLUME

• Geometric working volume of a satellite positive displacement machine

  Publikacja

  • P. Śliwiński

  - Scientific Reports - Rok 2024

  This article describes a method for determining the geometric working volume of satellite positive displacement machines (pump and motor). The working mechanism of these machines is satellite mechanism consisting of two non-circular gears (rotor and curvature) and circular gears (satellites). Two variants of the satellite mechanism are presented. In the first mechanism, the rolling line of the rotor is a sinusoid "wrapped" around...

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• The influence of pressure drop on the working volume of a hydraulic motor

  Publikacja

  • P. Śliwiński

  - Eksploatacja i Niezawodność - Maintenance and Reliability - Rok 2022

  Reliability and maintenance analysis of hydraulic positive machines basicly focused on the processes of their wear and failure. But in order to correctly assess the mechanical and volumetric efficiency of a hydraulic motor, both at the stage of development research or at the stage of control tests during its exploitation, the working volume of this motor must be correctly determined. Therefore this paper proposes a new method of...

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• Determination of the theoretical and actual working volume of a hydraulic motor

  Publikacja

  • P. Śliwiński

  - ENERGIES - Rok 2020

  A new methodology of determination of the theoretical and actual working volume of a hydraulic motor based on the characteristics of the delivered flow rate into hydraulic motor vs. the rotational speed at a constant pressure drop in the working chambers is described in this paper. A new method of describing the delivered flow rate into a motor per one shaft revolution as a nonlinear function of the pressure drop in the motor working...

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• Volume efficiency loss in axial pumps caused by working fluid compressibility.

  Publikacja

  • L. Osiecki

  - Hydraulika a pneumatika - Rok 2002

  Przedstawiono teoretyczną analizę wpływu ściśliwości cieczy roboczej konstrukcji mechanizmu rozrządu pompy wielotłoczkowej osiowej na straty energetyczne w przestrzeni martwej. Podano wyniki uzyskane dla typowych konstrukcji.

• Determination of the Theoretical and Actual Working Volume of a Hydraulic Motor—Part II (The Method Based on the Characteristics of Effective Absorbency of the Motor)

  Publikacja

  • P. Śliwiński

  - ENERGIES - Rok 2021

  : In this article, the second method of determination of the theoretical and actual working volume of a hydraulic motor is described. The proposed new method is based on the characteristics of effective absorbency of the motor. The effective absorbency has been defined as the ratio of flow rate in a motor to the rotational speed of the motor’s shaft. It has been shown that the effective absorbency is a nonlinear function of the...

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• The impact of footing conditions of a vertical-axis floating-roof tank on structural shell deformation

  Publikacja

  • K. Żyliński
  • J. Górski

  - Rok 2022

  Structural shells of fuel tanks are often subjected to geometric imperfections which may lead to exceeding the ultimate and serviceability limit states. One of the means triggering shell deformation is non-uniform settlement caused by incoherent soil conditions. Analysis carried out in the work concerns of vertical-axis, floating-roof cylindrical shell which volume is 50.000 m3, founded on a complex multi-layered soil. The sensitivity...

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• The electrical properties mesurements of SOFC with Ce0.9Cu0.1O2-s functional layer

  Dane Badawcze

  open access

  • B. Bochentyn
  • P. Błaszczak

  The dataset includes the electrical properties mesurements of SOFC with Ce0.9Cu0.1O2-s layer. Samples were produced using aqueous soft chemistry methods (microemulsion method) and applied in form of a layer onto the anode of the commercial SOFC. The SOFC was working under biogas feeding at 750oC. The layers were sintered at 1100oC. 

• The electrical properties mesurements of SOFC with Ce0.9Co0.1O2-s functional layer

  Dane Badawcze

  open access

  • B. Bochentyn
  • P. Błaszczak

  The dataset includes the electrical properties mesurements of SOFC with Ce0.9Co0.1O2-s layer. Samples were produced using aqueous soft chemistry methods (microemulsion method) and applied in form of a layer onto the anode of the commercial SOFC. The SOFC was working under biogas feeding at 750oC. The layers were sintered at 1100oC. 

• The electrical properties mesurements of SOFC with Ce0.8Co0.1Cu0.1O2-s functional layer

  Dane Badawcze

  open access

  • B. Bochentyn
  • P. Błaszczak

  The dataset includes the electrical properties mesurements of SOFC with Ce0.8Co0.1Cu0.1O2-s layer. Samples were produced using aqueous soft chemistry methods (microemulsion method) and applied in form of a layer onto the anode of the commercial SOFC. The SOFC was working under biogas feeding at 750oC. The layers were sintered at 1100oC. 

• The electrical properties mesurements of SOFC with Ce0.8Co0.15Cu0.05O2-s functional layer

  Dane Badawcze

  open access

  • B. Bochentyn
  • P. Błaszczak

  The dataset includes the electrical properties mesurements of SOFC with Ce0.8Co0.15Cu0.05O2-s layer. Samples were produced using aqueous soft chemistry methods (microemulsion method) and applied in form of a layer onto the anode of the commercial SOFC. The SOFC was working under biogas feeding at 750oC. The layers were sintered at 1100oC.