Temat: impeller - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: A method for analysing ram pressure characteristics of impeller pump rotor
Autorzy:: Puzyrewski, R.
Żochowski, K.
Flaszyński, P.
Powiązania:: https://bibliotekanauki.pl/articles/259353.pdf
Data publikacji:: 2009
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: impeller pumps
characteristics
tests
Opis:: This paper presents a method in which typical tests of centrifugal pump are used to obtain information on real value of discharge angle of flow leaving the rotor. The method can be applied to properly choose inlet angle to blade palisade of centrifugal guide vanes in the case when to perform measurements of velocity fields behind the rotor more precisely is not possible.
Źródło:: Polish Maritime Research; 2009, S 1; 52-57
1233-2585
Pojawia się w:: Polish Maritime Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Research on key process technology for profile electrolytic finishing of large marine propeller impeller
Autorzy:: Ding, B.
Chen, Y.
Zhou, J.
Chen, P.
Powiązania:: https://bibliotekanauki.pl/articles/259906.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: integral impeller
electrolysis processing
blade
Opis:: An electrolysis process method for free-form blade surface finishing is proposed for a free-form surface impeller, and a stepwise method is used to process the inter-blade channel of the overall impeller. The forming cathode is then used to finish the blade to meet the blade processing requirements. In the design, the forming cathode structure was improved by using motion simulation software, and the flow field simulation software was used to simulate and analyze the cathode flow channel. The cathode shape and the electrolyte flow rate between the electrodes meet the processing requirements. In the process of processing experiments, the motion path of the cathode was analyzed and optimized. The effect of the feed direction on the uneven distribution of the blade machining gap was reduced through optimization, and highfrequency pulse power processing was used to reduce the machining gap and improve the machining accuracy of the blade. The experimental results show that the process scheme is feasible and the precision of the processed impeller free-form surface is significantly improved. The material is a monolithic turbine disk of high-temperature alloys, and its large twisted blade processing has always been a problem in the manufacturing industry.
Źródło:: Polish Maritime Research; 2018, S 2; 158-163
1233-2585
Pojawia się w:: Polish Maritime Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Centrifugal compressor performance improvement through multi splitter impeller
Autorzy:: Malik, Adil
Zheng, Qun
Qureshi, Shafiq R.
Ahmed, Salman A.
Gambo, D. KB
Powiązania:: https://bibliotekanauki.pl/articles/258806.pdf
Data publikacji:: 2019
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: centrifugal compressor
back swept impeller
flow separation
efficiency
numerical simulation
Opis:: In the paper, a back swept impeller of centrifugal compressor is experimentally studied and numerically validated and modified to increase its pressure ratio and improve efficiency, as well as to analyse the effect of splitter blade location between two main blades. The back swept multi splitter blade impeller was designed with a big splitter positioned close to the main blade suction surface and a smaller splitter close to the pressure surface. Adding this multi splitter improves the overall performance of the modified impeller due to less intensive flow separation and smaller pressure loss. In particular, the total pressure ratio was observed to increase from 4.1 to 4.4, with one percent increase in efficiency.
Źródło:: Polish Maritime Research; 2019, 2; 6-14
1233-2585
Pojawia się w:: Polish Maritime Research
Dostawca treści:: Biblioteka Nauki

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