Temat: energy saving efficiency - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Hydrodynamic state of art review: rotor – stator marine propulsor systems design
Autorzy:: Król, Przemysław
Powiązania:: https://bibliotekanauki.pl/articles/1573691.pdf
Data publikacji:: 2021
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: energy-saving device
guide vane
pre-swirl stator
propulsor design
efficiency
Opis:: The paper covers the important topic of rotor–stator propulsor system design and operation. For the stand-alone marine screw propeller, both the design criteria for loading distribution and the theoretical efficiency limits are well described in the basic literature. This is in contrast to the combined propulsor system like a propeller cooperating with a pre-swirl device. The paper describes the current state of the art, summarising results obtained by various researchers by installing energy-saving devices on particular vessels. The design methods utilised are briefly outlined, with the main characteristics underlined. Rough analysis of the gathered data confirms the expected trend that a higher efficiency gain due to ESD installation is possible for a higher propeller loading.
Źródło:: Polish Maritime Research; 2021, 1; 72-82
1233-2585
Pojawia się w:: Polish Maritime Research
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: 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 I. Energy losses in a drive system, volumetric losses in a pump
Autorzy:: Paszota, Z.
Powiązania:: https://bibliotekanauki.pl/articles/258983.pdf
Data publikacji:: 2012
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: hydrostatic drive system
pressure displacement pum
energy losses
energy efficiency
energy saving
liquid compressibility
Sankey diagram
Opis:: Working liquid compressibility may considerably change the values and proportions of coefficients of 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 I a diagram is presented, proposed by the author, of power increase in a hydrostatic drive system (hydraulic motor, pump) opposite to the direction of power flow, replacing the Sankey diagram of power decrease in the direction of power flow. Mathematical model is presented of volumetric losses in the pump and its laboratory verification.
Źródło:: Polish Maritime Research; 2012, 2; 3-10
1233-2585
Pojawia się w:: Polish Maritime Research
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: 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.
Powiązania:: https://bibliotekanauki.pl/articles/259133.pdf
Data publikacji:: 2012
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: hydrostatic drive system
pressure displacement pump
energy losses
energy efficiency
energy saving
liquid compressibility
Sankey diagram
Opis:: 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.
Źródło:: Polish Maritime Research; 2012, 3; 36-44
1233-2585
Pojawia się w:: Polish Maritime Research
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: 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
Autorzy:: Paszota, Z.
Powiązania:: https://bibliotekanauki.pl/articles/259311.pdf
Data publikacji:: 2011
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: hydrostatic drive and control
evaluation of energy losses
method of energy efficiency investigation
search for the energy saving solutions
Opis:: Designers and manufacturers of hydrostatic drives have not a tool for precise determination of their energy efficiency, changing in a wide range in the driven device operating field, i.e. in the full range of the hydraulic motor speed and load and the working medium viscosity. This applies both to determining of losses and energy efficiency of displacement machines (pump and hydraulic motor) used in the drive system, and to losses and energy efficiency of the motor control system structure. A method is proposed compatible with the diagram of power increase opposite to the direction of power flow. That diagram replaces the Sankey diagram of power decrease in the direction of power flow.
Źródło:: Polish Maritime Research; 2011, 1; 3-9
1233-2585
Pojawia się w:: Polish Maritime Research
Dostawca treści:: Biblioteka Nauki

Artykuł

Informacja