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Keywords: Efficiency
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Journal Articles
Mar Technol SNAME N 47 (01): 47–58.
Paper Number: SNAME-MTSN-2010-47-1-47
Published: 01 January 2010
... and azimuthing conditions. In the puller configuration, the gap distance did not have any noticeable effect on propeller torque in straight course condition, but had an effect in azimuthing conditions. The propeller thrust and efficiency were also influenced by the change of gap distance, and the effects were...
Journal Articles
Mar Technol SNAME N 47 (01): 74–84.
Paper Number: SNAME-MTSN-2010-47-1-74
Published: 01 January 2010
... pitch value Efficiency requirement propeller thrust panel method inflow wake Marine Technology, Vol. 47, No. 1, January 2010, pp. 74 84 Design Study of a Heavily Loaded Ice Class Propeller Using an Advance Panel Method Pengfei Liu,1 Mohammed Fakhrul Islam,2 J. Michael Doucet,2 Andrew Prior,3...
Journal Articles
Mar Technol SNAME N 44 (04): 203–211.
Paper Number: SNAME-MTSN-2007-44-4-203
Published: 01 October 2007
..., significantly elevate the quality of construction, and increase the working efficiency. 1 10 2007 1 10 2007 2007. The Society of Naval Architects and Marine Engineers Upstream Oil & Gas specification Efficiency information management Constructor Simulation marine transportation...
Journal Articles
Mar Technol SNAME N 43 (02): 100–113.
Paper Number: SNAME-MTSN-2006-43-2-100
Published: 01 April 2006
... with the results obtained from present method. 1 4 2006 1 4 2006 2006. The Society of Naval Architects and Marine Engineers Artificial Intelligence calculation coefficient april 2006 control point circulation axial geometry induction factor equation Fluid Dynamics Efficiency...
Journal Articles
Mar Technol SNAME N 42 (04): 177–183.
Paper Number: SNAME-MTSN-2005-42-4-177
Published: 01 October 2005
..., sister ships, and between different time periods of voyages for the same ship. The procedure has been applied to two ships that are identical, with the only exception that one has a conventional propeller, whereas the other one is fitted with a high-efficiency propeller of the KAPPEL type. The results...
Journal Articles
Mar Technol SNAME N 42 (03): 144–158.
Paper Number: SNAME-MTSN-2005-42-3-144
Published: 01 July 2005
... propellers with nonplanar lifting surfaces has resulted in propellers with higher efficiency and lower levels of noise and vibration excitation compared to conventional state-of-the-art propellers designed for the same task. Conventional and KAPPEL propellers have been compared for a medium-sized...
Journal Articles
Mar Technol SNAME N 41 (03): 95–101.
Paper Number: SNAME-MTSN-2004-41-3-95
Published: 01 July 2004
... ratio comb combustion efficiency is compressor isentropic efficiency mech engine mechanical efficiency volumetric compression ratio sca scavenge ratio rotation speed (rad/s) Bo bore (m) Dhex-val enthalpy flow through exhaust valves (W) Dmex-val mass flow through exhaust valves (kg/s...
Journal Articles
Mar Technol SNAME N 40 (04): 229–238.
Paper Number: SNAME-MTSN-2003-40-4-229
Published: 01 October 2003
... and conflicting objectives. In this paper, a multiobjective optimization method of B-screw series propeller is introduced that makes use of an evolutionary algorithm maximizing both efficiency and thrust coefficient with a constraint determined by cavitation. The capabilities of the method are illustrated...
Journal Articles
Mar Technol SNAME N 40 (02): 82–92.
Paper Number: SNAME-MTSN-2003-40-2-82
Published: 01 April 2003
...Richard Woytowich Beginning with an overview of riveted joint construction, this paper shows that the efficiency of riveted joints in pre-World War I ships decreased as plate thickness increased. In the case of the RMS Titanic, some of the joints involved in the iceberg impact were only about 27...
Journal Articles
Mar Technol SNAME N 40 (01): 42–48.
Paper Number: SNAME-MTSN-2003-40-1-42
Published: 01 January 2003
.... By using the developed computer program, the optimum structural designs for three types of surface effect ships—built of sandwich plate only, stiffened single skin plate only, and both plates—are carried out and the efficiency of each type is investigated in terms of weight. The computer program, developed...
Journal Articles
Mar Technol SNAME N 40 (01): 34–41.
Paper Number: SNAME-MTSN-2003-40-1-34
Published: 01 January 2003
... to the low compliance rate, and some inherent defects of legislation, the current status of NIS control is not very encouraging. Several technical and legislative options have been proposed to improve the efficiency of NIS control. The most promising methods include filtration with ultraviolet, heat...
Journal Articles
Mar Technol SNAME N 39 (04): 211–222.
Paper Number: SNAME-MTSN-2002-39-4-211
Published: 01 October 2002
... candidate primary mechanical separation devices obtained over a four-year period on the barge installation are presented and compared. Results are presented for the particle removal efficiency at a nominal 340 m3 /h (1500 U.S. gpm) for a 50 micron (µm) screen-type surface automatic backwash filter, a 100 µm...
Journal Articles
Mar Technol SNAME N 39 (02): 105–108.
Paper Number: SNAME-MTSN-2002-39-2-105
Published: 01 April 2002
...Matthew Pegrum; Colen Kennell This paper presents the findings of an investigation into the fuel efficiency of a number of concept designs for High Speed Sealift ships. A factor based on fuel weight, cargo weight and range is used to compare the ships with fixed-wing aircraft, rotary-wing aircraft...
Journal Articles
Mar Technol SNAME N 38 (04): 219–232.
Paper Number: SNAME-MTSN-2001-38-4-219
Published: 01 October 2001
... to be a more economical design with savings of approximately 25% over the existing vessels and a 15% savings over the concept vessel evaluated in the cost analysis. The Suez Max SS utilizes its economies of scale and the advantages of a two-port schedule that allow it to be such a cost-efficient design...
Journal Articles
Mar Technol SNAME N 38 (04): 233–240.
Paper Number: SNAME-MTSN-2001-38-4-233
Published: 01 October 2001
... of propulsor, with its modest amount of efficiency improvement, has been recognized as one of the least complicated and robust unconventional energy saving devices among others. Thus, the paper presents a design methodology for this type of device and illustrates its successful application to a SWATH fishing...
Journal Articles
Mar Technol SNAME N 37 (02): 100–110.
Paper Number: SNAME-MTSN-2000-37-2-100
Published: 01 April 2000
... 1 4 2000 1 4 2000 knot stern flap chord length flap angle Coast Guard Efficiency flap chord length cusanelli flap length resistance inflection point trim change coastal patrol boat wedge marine technology initial condition flap patrol boat spring 2000 Marine...
Journal Articles
Mar Technol SNAME N 35 (03): 175–182.
Paper Number: SNAME-MTSN-1998-35-3-175
Published: 01 July 1998
...Alexander M. Gorlov This paper describes the helical turbine as an efficient new instrument for converting the kinetic energy of hydro streams into electric or other mechanical energy. A multi-megawatt project is proposed, conceived as an ocean power farm equipped with a number of helical turbines...
Journal Articles
Mar Technol SNAME N 35 (03): 151–174.
Paper Number: SNAME-MTSN-1998-35-3-151
Published: 01 July 1998
... and product data from leading vendors was used to size the components and to estimate their efficiencies. In other sections of the model, life-cycle fuel costs and costs of reliability were computed. The model was used to size and estimate the total costs for different configurations for four surface ships...
Journal Articles
Mar Technol SNAME N 34 (04): 276–292.
Paper Number: SNAME-MTSN-1997-34-4-276
Published: 01 October 1997
... requirement equation resistance engine waterjet propeller thrust displacement october 1997 coefficient surface propeller marine technology Efficiency diameter application propulsor hump speed Marine Technology, Vol. 34, No. 4, Oct. 1997, pp. 276-292 Design of Propulsion Systems for High...
Journal Articles
Mar Technol SNAME N 32 (04): 297–304.
Paper Number: SNAME-MTSN-1995-32-4-297
Published: 01 October 1995
... installation of the two-stroke low speed propulsion engine and the generating sets, sharing a common fuel system (Uni-fuel Concept), common simplified cooling water systems, starting air installation, etc., is explained. This concept enables the shipyard to select the simplest and most cost-efficient engine...

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