The PBCF is an energy-saving device that reduces a vessel's fuel consumption by 3% to 5% by eliminating the hub vortex generated behind the rotating propeller and improving propeller efficiency
. It was jointly developed by MOL, West Japan Fluid Engineering Laboratory Co., Ltd., and Mikado Propeller Co., Ltd.
The propeller efficiency
increases when the number of blades increases view Figure 5 above; however, it is important to consider the cost-benefit ratio in regard to the number of blades.
Hempel's Systems for Hull and Propeller Efficiency
(SHAPE) is based on the ISO 19030 framework and uses Hempel's world-class coatings knowledge from more than 100 years of experience.
Earlier, in response to the global shipping industry's continuing focus on fuel efficiency, the company launched its new Systems for Hull and Propeller Efficiency
The objective function was set to maximize the propeller efficiency
at the design point.
Varghese (2010) described a number of characteristics that increase propeller efficiency
and presented an analysis of multiple designs.
For airplanes with props, we need to add in propeller efficiency
. Propellers are designed to work best at certain airspeeds.
Emphasis will be placed on defining the interdisciplinary interactions and corresponding effects on overall propeller efficiency
. Next, each of the analysis modules will be validated against simulated or experimental data.
There's also an impact on propeller efficiency
, since its blades are airfoils.
In addition, it is known that PPs with shrouded propellers have increased propeller efficiency
and decrease fuel consumption during the cruising flight mode (Udartsev et al.
Tacking to account a electronic driver module efficiency of 0,95 %, a electric motor efficiency of 0,9 % and also a propeller efficiency
of 0,75 % we find a 0,64 % global efficiency of a entire propulsion system of the boat.
"The new, state-of-the-art hull design reduces water resistance and increases propeller efficiency
providing not only an exhilarating performance at all speeds but also greater fuel economy."