Study Helps Advance Hybrid Electric SWATH Design

Posted by Eric Haun
Tuesday, December 10, 2013
CTruk's first SWATH OWSV built in 2013 (CWind Astute)

A feasibility study around a hybrid powertrain SWATH, commissioned this year by CTruk, has given the company further impetus in its ongoing development of a hybrid electric offshore wind support vessel design.

The study was based on the CTruk CWhisper SWATH, a 20m craft fitted with twin Cummins QSM-11 marine diesel engines and Rolls-Royce Kamewa FF41 waterjets. The feasibility report concluded that the implementation of a parallel hybrid solution would result in substantial operational cost savings on this particular vessel, an attractive prospect coupled with the already well-documented advantages of the SWATH hull form in offshore wind operations.

Marine craft in the offshore wind support sector typically have two major transit periods each day, with the rest of their time at sea spent idling or slow maneuvering with the occasional high speed peak. This usage profile makes OWSVs ideally suited to a hybrid configuration. The introduction of an electric motor to handle the load during low power demand periods allows the boat’s engines to be turned off or run as generators at a more optimized power rating. As well as the obvious fuel savings incurred, this reduces hours and wear on the engines, a key point for commercial marine vessels which typically require engine services every few weeks. The life expectancy of an engine could be increased dramatically if the craft ran electric during idling downtime, as these craft can idle for up to 50% of a shift offshore. Resulting reduced maintenance and direct costs also represent significant savings.

CTruk builds high-speed vessels using resin-infused FRP composite, a robust material that is around 40% lighter than aluminum. These vessels are therefore well able to take the extra weight of the additional drive train needed for hybrid operation, a small price to pay for the resulting greatly reduced running costs possible over the vessel’s lifetime. The unique belt drive transmission system currently being fitted on CTruk’s latest SWATH build will be included on all subsequent CTruk SWATH vessels, future-proofing these craft by allowing for the retrofitting of a parallel hybrid solution.

Jim Cutts, director of engineering at CTruk commented, “CTruk has always strived to offer more cost-efficient workboats and the reduced fuel consumption of our lighter, composite vessels has been a key factor in achieving this aim. We envisage that the significant further reduction of fuel usage on a hybrid electric vessel will see CTruk’s product range thrust forward into the future of offshore wind construction and O&M, a future where efficiency and cost reduction reign.”

ctruk.com
 

Maritime Reporter August 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Marine Power

3D Scanning Speeds Up Drag Boat Racing

NVision, Inc., a company in 3D laser scanning and reverse engineering for over 24 years, said it was able to help a motorsports boat designer optimize the design

World’s Largest Fast Crew Boat Christened at Incat

The 70-meter Fast Crew Boat (FCB) was christened Muslim Magomayev at a ceremony at the Incat shipyard on Monday, September 15. This is the first vessel that

Ship Safety: IMO Committee Agree Draft IGF Code

IMO informs that the draft International Code of Safety for Ships using Gases or other Low flashpoint Fuels (IGF Code), along with proposed amendments to make the Code mandatory under SOLAS,

News

Jet Edge Celebrates 30 Years in Waterjet Industry

Waterjet systems manufacturer Jet Edge, Inc. celebrated its 30th anniversary Sept. 3 with a special open house celebration. Jet Edge’s anniversary event included

TITAN Salvage Receives NAMEPA Award

The North American Marine Environment Protection Association (NAMEPA) announced earlier this month that Houston-based TITAN Salvage, a subsidiary of Crowley Maritime Corp.

Second Sailing Added to Cleveland-Europe Express

The Port of Cleveland and Amsterdam-based Spliethoff Group announced today their mutual intent to add a second monthly vessel to the Cleveland-Europe Express (CEE),

Vessels

Damen Delivers ASD Tug in Italy

RimorchiatoriRiunitiS.p.A. of Genoa (Italy) has taken delivery of a Damen ASD Tug 2411. The 70-metric-ton bollard pull azimuth stern drive tug will be temporarily deployed by Tug Malta Ltd.

Global Ship Lease to Acquire Containership

Global Ship Lease, Inc. has  announced  that it has agreed to acquire a 8,063 TEU containership from a leading container liner company for a purchase price of $55 million.

World’s Largest Fast Crew Boat Christened at Incat

The 70-meter Fast Crew Boat (FCB) was christened Muslim Magomayev at a ceremony at the Incat shipyard on Monday, September 15. This is the first vessel that

 
 
Maritime Contracts Maritime Security Maritime Standards Pipelines Port Authority Salvage Ship Repair Ship Simulators Shipbuilding / Vessel Construction Sonar
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.2077 sec (5 req/sec)