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Marine engine makers gear up for stiffer emissions standards

Oct 1, 2013 11:04 AM

(page 4 of 4)

High-tech is here
Hybrid engines, another technology adopted from highway products, are making their way into the marine environment. In July, Caterpillar launched its Marine Hybrid System, which blends the Cat 3500 engine with an electrical propulsion system from Aspin Kemp & Associates.

The hybrid system can operate with either diesel or electric power or a combination of both. It offers a 25 percent fuel savings and reduced emissions. It’s targeted at vessels with requirements for long periods of low to medium power, such as workboats, platform supply vessels, research vessels and eco-tourism boats.

First tested in tugboats, the hybrid is an option for many types of vessels.

“Other applications, such as pleasure craft or offshore, will also find this an attractive proposition,” said Michael Braun, Caterpillar Marine Power Systems tug and salvage segment manager. “Essentially any vessel that sees a duty-cycle benefit would also benefit from a hybrid solution.”

Oct 2, 2013 11:05 am
 Posted by  Alastair Trower

Fuel quality is an issue that is increasing in sensitivity. Not only are pressure changes making engines less tolerant, but fuel has changed significantly. Low Sulphur is migrating to Ultra Low Sulphur, and bio-diesel is starting to be blended into ship and land based fuels. These mandates (EU, EPA, Marpol Annex VI etc) all increase complication in the engine room.

Puritas Energy has pput together a consolidated report looking at the issues associated with modern fuel, their impact on fuel users and offers some guidance over the problem of increased water in fuel.

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