The Optimum Design of a Propeller Energy-Saving Device by Computational Fluid Dynamics

Hsin, Ching‐Yeh; Lin, Bo-Hong; Lin, Chung-Ching

doi:10.1007/978-3-642-01273-0_87

Cited by 6 publications

(10 citation statements)

References 2 publications

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“…Junglewitz reported that the use of PBCF results in hub vortex reduction and in consequence 2 to 5% increase in the efficiency [13]. Hsin et al [14] presented a design procedure for a PBCF with the use of computational fluid dynamics (CFD).…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Hub Effect on Hydrodynamic Performance of Propellers with Inclusion of PBCF to Equalize the Induced Velocity

Ghassemi¹,

Mardan²,

Ardeshir³

2012

Polish Maritime Research

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In this article the boundary element method (BEM) is applied to analyze the propeller hub as a non-lifting body and the blades in its vicinity as lifting bodies. In solver, the geometrical modeling of hub, blades are PBCF (Propeller Boss Cap Fin) constructed by quadrilateral elements. The velocity potential is determined on each element by discretized boundary integral equation. Iterative procedure is used to consider the adjacent body effect. In each step the body was independently analyzed with the influence of near body considered in inflow velocity. The induced velocity of propeller was calculated with and without PBCF in downstream. PBCF, an energy-saving device, reduces and uniforms the induced velocity of propeller in downstream. Numerical results of propeller hydrodynamic characteristics including hub effect, inducedvelocities, PBCF influence are presented.

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Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Hub Effect on Hydrodynamic Performance of Propellers with Inclusion of PBCF to Equalize the Induced Velocity

Ghassemi¹,

Mardan²,

Ardeshir³

2012

Polish Maritime Research

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“…Hsin in previous research explained that the number of PBCF fins should be equal to the number of the propeller from the propeller. As this research uses the INSEAN E-1619 Submarine Propeller model which has 7 blades, the number of PBCF fins used by 7 fins [13].…”

Section: F Determination Of Pbcf Design Parametersmentioning

confidence: 99%

Analysis of the Effects from Adding Propeller Boss Cap Fins to Skewed Propeller Performance With CFD Methods

Arief

Baidowi

Pradana

2021

IJMEIR

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⎯ fuel accounts for the majority of the ship's operating costs. Increased propeller efficiency can help to reduce fuel usage. The higher the efficiency, the less energy is wasted. Ships with high propeller efficiency may be able to provide more thrust while using less fuel. Propeller Boss Cap Fin (PBCF) installation is one of the solutions for improving propeller efficiency that is ideal for a submarine. PBCF may lower the submarine's energy usage, allowing it to recharge its batteries less frequently. According to certain studies, PBCF can boost propeller efficiency by 7% while lowering noise levels by nearly 6 decibels (dB). The impact of PBCF phase lag variation on skewed propeller performance and flow will be the subject of this article. CFD simulation using phase lags of 0, 12.86, 25.72, and 38.58 will be used in the study. The simulation shows that PBCF can improve propeller efficiency while lowering propeller torque. Even though all phase lag modifications show a reduction in propeller thrust. On its hub vortex, they also reveal the existence of distraction.

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“…PBCF is propulsion ESD which converted normal hub into a hub with fins that number of fins same as the number of propeller blades. [14]. By removing hub vortex, PBCF can reduce fuel consumption cost approximately 3 -7 % [2].…”

Section: Energy Savings Devicesmentioning

confidence: 99%

“…Since 1988, PBCF development studies have been undertaken to improve the efficiency generated by PBCF. PBCF has several parameters that can be varied like axial position fins on PBCF by [1,14,17,21], pitch angle from fins [1,14,17,21], hub diameter [21], and some researchers have conducted a study on it. In Figure 4 we can see some parts of PBCF that can be varied.…”

Section: Propeller Boss Cap Finsmentioning

confidence: 99%

An Investigation into the Effect of Slope Angle of Hub Cap Geometry against the Efficiency of Ship Propeller in the Presence of PBCF

Abar¹,

Utama²,

Iqbal³

2018

Proceeding of Marine Safety and Maritime Installation (MSMI 2018)

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The use of Energy-Saving Devices (ESDs) is a way to decrease fuel consumption and greenhouse gas emission on a ship. Not only to reduce fuel consumption, but also the use of ESDs can manage environmental pollution especially air pollution. Propeller boss cap fins (PBCF) is one of ESDs which has a function to help the main propeller gaining more efficiency. However, the configuration of hub slope on a different type of hub cap is very sensitive to whole propeller system performance. The sensitivity of the slope of the hub may affect the different results on the efficiency of PBCF. This is taken into consideration in propeller design with and without the application of PBCF. This analysis was done at full scale using CFD-based RANS method. The result indicated enhancement around 1,3-1,5% on propeller efficiency after adding PBCF with convergent cap type.

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The Optimum Design of a Propeller Energy-Saving Device by Computational Fluid Dynamics

Cited by 6 publications

References 2 publications

Numerical Analysis of Hub Effect on Hydrodynamic Performance of Propellers with Inclusion of PBCF to Equalize the Induced Velocity

Numerical Analysis of Hub Effect on Hydrodynamic Performance of Propellers with Inclusion of PBCF to Equalize the Induced Velocity

Analysis of the Effects from Adding Propeller Boss Cap Fins to Skewed Propeller Performance With CFD Methods

An Investigation into the Effect of Slope Angle of Hub Cap Geometry against the Efficiency of Ship Propeller in the Presence of PBCF

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