Featured Research

from universities, journals, and other organizations

Combination of three propulsion technologies brings maritime fuel savings

Date:
November 4, 2013
Source:
Technical Research Centre of Finland (VTT)
Summary:
According to new research, lower fuel consumption and emissions are expected for an innovative propulsion system to be used as a promising alternative to conventional propellers.

According to the TRIPOD research project coordinated by VTT Technical Research Centre of Finland lower fuel consumption and emissions are expected for an innovative propulsion system to be used as a promising alternative to conventional propellers. Annual fuel savings for a single cargo ship above half million euros are foreseen. The research examined the benefits derived from combining the RudderPod propulsion units developed by ABB-Finland with the contracted loaded tip propellers (CLT) developed by the Spanish company Sistemar and with contra-rotating propellers (CRP).

Related Articles


Based on the TRIPOD project results, the fuel consumption of a retrofitted propulsion system is 5% lower, and that of a newly built system 10% lower, than conventional solutions. Equivalent annual fuel savings for a single large container ship would be 0.5 to one million euros.

The goal of the TRIPOD project was to improve propeller efficiency by integrating three separate propulsion technologies -- the RudderPod units, CLT propellers and the CRP propulsion-, already known for their high efficiency over conventional propulsion into a single system.

The electric RudderPod unit can be positioned more freely at the ship stern, independently of the location of the main engine. In TRIPOD, the units are located behind the main propeller working as the aft-propeller of a CRP unit. The rotational speed of the Rudderpod propeller can also be adjusted, improving the propeller's efficiency and attenuating propeller-induced noise and vibration.

The CLT propeller blades can be more loaded at the tip than those of conventional propellers, which results in an improvement of the propulsion efficiency.

In the CRP system, the contra-rotating aft propeller recovers rotational energy losses from the fore (main) propeller, thus improves overall efficiency.

Study of the viability of the new propulsion solutions is made also by performing economical cost benefit analysis for the operation of the reference ships. It was concluded that if the investment level can be brought down, obviously in close cooperation with the relevant specialist suppliers, ship-owners will be interested to explore further installation opportunities especially in new-building projects of large container ships.

The three-year programme TRIPOD -- "Triple Energy Saving by use of CRP, CLT and Podded Propulsion" was implemented within the EU's Seventh Framework Programme.

Partners in the programme were VTT Technical Research Centre of Finland (Finland), ABB (Finland), Sistemar (Spain), Cehipar (Spain), Cintranaval-Defcar (Spain) and A. P. Mφller Maersk (Denmark).


Story Source:

The above story is based on materials provided by Technical Research Centre of Finland (VTT). Note: Materials may be edited for content and length.


Cite This Page:

Technical Research Centre of Finland (VTT). "Combination of three propulsion technologies brings maritime fuel savings." ScienceDaily. ScienceDaily, 4 November 2013. <www.sciencedaily.com/releases/2013/11/131104035247.htm>.
Technical Research Centre of Finland (VTT). (2013, November 4). Combination of three propulsion technologies brings maritime fuel savings. ScienceDaily. Retrieved October 24, 2014 from www.sciencedaily.com/releases/2013/11/131104035247.htm
Technical Research Centre of Finland (VTT). "Combination of three propulsion technologies brings maritime fuel savings." ScienceDaily. www.sciencedaily.com/releases/2013/11/131104035247.htm (accessed October 24, 2014).

Share This



More Matter & Energy News

Friday, October 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

IKEA Desk Converts From Standing to Sitting With One Button

IKEA Desk Converts From Standing to Sitting With One Button

Buzz60 (Oct. 24, 2014) — IKEA is out with a new convertible desk that can convert from a sitting desk to a standing one with just the push of a button. Jen Markham explains. Video provided by Buzz60
Powered by NewsLook.com
Ebola Protective Suits Being Made in China

Ebola Protective Suits Being Made in China

AFP (Oct. 24, 2014) — A factory in China is busy making Ebola protective suits for healthcare workers and others fighting the spread of the virus. Duration: 00:38 Video provided by AFP
Powered by NewsLook.com
Real-Life Transformer Robot Walks, Then Folds Into a Car

Real-Life Transformer Robot Walks, Then Folds Into a Car

Buzz60 (Oct. 24, 2014) — Brave Robotics and Asratec teamed with original Transformers toy company Tomy to create a functional 5-foot-tall humanoid robot that can march and fold itself into a 3-foot-long sports car. Jen Markham has the story. Video provided by Buzz60
Powered by NewsLook.com
Police Testing New Gunfire Tracking Technology

Police Testing New Gunfire Tracking Technology

AP (Oct. 24, 2014) — A California-based startup has designed new law enforcement technology that aims to automatically alert dispatch when an officer's gun is unholstered and fired. Two law enforcement agencies are currently testing the technology. (Oct. 24) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins