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Wyszukujesz frazę "trim" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Monitoring and analysis of the performance data of a RO-PAX ship in the perspective of energy efficiency
Autorzy:
Galli, A. M.
Gualeni, P.
Stranieri, G.
Qualich, S.
Cusano, G.
Powiązania:
https://bibliotekanauki.pl/articles/258940.pdf
Data publikacji:
2014
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
energy
efficiency
monitoring
trim
consumption
Opis:
The rising cost of fuel, the more and more severe international standards and a growing awareness of the environmental impact of pollutant emissions have led energy efficiency to become a theme of great interest in the marine sector. The strategy for increasing energy efficiency may refer both to the consumption reduction and to the increase of energy recovery systems. This need turns out in monitoring and control strategies for energy processes on board. Monitoring information is recorded and stocked in a database, that needs to be analyzed to find out patterns in large data sets. A huge amount of data, from a RO-PAX ship, has been analyzed in order to gain a further insight into ship performances. Improvements in ship energy performances could be reached with an intense study of the historical data of the vessel attitude.
Źródło:
Polish Maritime Research; 2014, 4; 18-26
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical study of effect of trim on performance of 12500DWT cargo ship using RANSE method
Autorzy:
Chuan, Tran Quoc
Phuong, Nguyen Kim
Tu, Tran Ngoc
Quan, Mai Van
Anh, Nguyen Duy
Le, Tat-Hien
Powiązania:
https://bibliotekanauki.pl/articles/32891489.pdf
Data publikacji:
2022
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
RANSE
ship performance
trim optimisation
operating condition
ship speed
Opis:
This paper deals with the results of studying the effect of trim on the performance of series cargo ship 12500DWT in full scale at two operating conditions by using the RANSE method. The Body Force Propeller method is used to simulate a rotating propeller behind the ship. The numerical predicted results at the ballast condition were verified and validated with sea trial data. The ship’s engine power curves for different trim conditions at two operating conditions were carried out to produce a data source to evaluate the effect of trim on the performance of the 12500DWT cargo ship. The results indicate that if the ship operates under optimum trim conditions, this can decrease the ship’s engine power in a range from 2.5 to 4.5% depending on different loading conditions and ship speeds. Finally, the paper also provides detailed differences in flow around the ship due to trim variation to explain the physical phenomenon of changing ship performance.
Źródło:
Polish Maritime Research; 2022, 1; 3-12
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical evaluation of the wave pattern for fast ships with taking into account the dynamic trim and sinkage
Autorzy:
Kraskowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/259665.pdf
Data publikacji:
2006
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
RANSE
powierzchnia wolna
szybkie statki
rozmieszczanie i osiadanie ładunku
free surface
fast vessels
dynamic trim and sinkage
Opis:
This paper presents results of the numerical evaluation of the fast container ship's wave pattern, based on the RANSE (Reynolds-Averaged Navier Stokes Equations) method with dynamic trim and sinkage taken into account. Evaluating the ship's running attitude is based on coupling the flow solver with solving the motion equations for the ship hull. The results are presented for four speed values and contain: ship's running attitude (defined by changes of ship draught and trim angle), wave contours and wave profiles in chosen planes. The computed ship's running attitude and wave profiles are compared with the experimental results.
Źródło:
Polish Maritime Research; 2006, 3; 8-16
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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