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A Cleaner Machine

SeaClean offers a solution to transom and hull soot stains from your diesel generator’s exhaust.

By Capt. Ken Kreisler

Ever since the first internal combustion engine was fired up, making both our work and pleasure time increasingly easier, we’ve had to deal with the compounding negative results of what comes out of the exhaust pipe. Advances in design and technology are protecting the environment while improving performance, but the tradeoff is still not very pretty. Noxious fumes, including dangerous carbon monoxide, the now-familiar greenhouse gases along with a host of other sundry materials, and the scourge of many a transom and hull, the staining particulate matter, primarily soot, are still ever-present even in today’s high-tech and compliant diesel power plants and generators.

“Diesel particulate matter has been shown to be a health risk,” said Jorge Lang, Operations Manager for Ft. Lauderdale-based DeAngelo Marine Exhaust, a respected company whose expertise in the field is well-known, as we discussed the problem. “In addition, many of these particles will embed themselves in the microscopic pores that are present even in the highest quality hull finish.”

Constant hull cleaning due to particulate soot staining the area by the generator exhaust can be controlled by SeaClean.

Constant hull cleaning due to particulate soot staining the area by the generator exhaust can be controlled by SeaClean.

As we all know, the latter notion Lang is alluding to is the damage that can result from attempts, with a seemingly endless range of cleaning aids, to remove the unsightly stains, known around the dock as ‘soot islands’, coming from the generator exhaust.

The solution seemed to lie in being able to stop the soot at the source. “We were called in to fix some filter problems with a generator’s catalytic converter by Richard Boggs, the former Technical Superintendent with Camper & Nicholsons as well as being the inventor of the SeaClean System,” said Lang.

As Lang described it, a catalytic converter works best with higher exhaust temperatures and as long as it stays that way, the system will function properly and more efficiently. “After that, we came up with the idea of using the generator’s excess electrical capacity to heat up the exhaust gases.”

Taking this information, Lang and Boggs were able to successfully modify a number of generator’s on several yachts resulting in a positive outcome. Knowing they were onto something, Boggs and DeAngelo partnered up and came up with a collective system.

The SeaClean unit can be easily retrofitted in most engine rooms.

The SeaClean unit can be easily retrofitted in most engine rooms.

According to Lang, the SeaClean Diesel Particulate Filter System is able to capture 95 percent or better of the soot and other materials in the generator’s exhaust flow that would otherwise be discharged into the atmosphere, the water, and on to the hull. It does this by first heating the exhaust gas before it enters the filter housing and then traps the particles, unburned fuel, and lube oil in the filter medium, reducing them to carbon dioxide and water vapor. In addition, much of the all too familiar odor associated with diesel exhaust is also eliminated. For maintenance, the filter element can be removed on a periodic cleaning schedule.

“Unlike other particulate filters which depend on high generator loads to create exhaust temperatures, exhaust is delivered to the filter at the correct temperature and thereby eliminates soot and the hydrocarbons associated with diesel smells and oil slicks,” explained Lang. This ability to have the trapped soot and unburned hydrocarbons delivered to the filter element is known as regeneration.

To insure the highest level of particulate removal and longest possible filter life between cleanings, SeaClean incorporates an electrically powered exhaust gas heater, which adjusts power consumption in relation to the load on the generator and its exhaust gas temperature. This means that when the generator is operating at a low load (and at its dirtiest) the heater maintains the correct exhaust temperature into the filter to achieve constant regeneration.

As generator load increases and exhaust temperature rises, the power delivered to the heater is smoothly reduced until the point where exhaust temperature is sufficient to maintain regeneration. The heater then consumes no power and the system does not draw on the yacht’s power distribution system. Full generator power is available to carry the load. At low output energy operations, the heater will function as an exhaust cooled load bank to provide a healthy electrical base load as well as keep the filter operating correctly.

The SeaClean System also incorporates a data logger and display for set pointsB13-0642-REV-B.774-Copy-300x225 and exhaust temperatures, back pressure indicator and, for immediate operational oversight, historical reference of the system’s performance. An alarm for high back pressure can be interfaced with any alarm and monitoring system.

“Right now, we’re working on boats 160-feet and above and have gotten great results,” said Lang. “But we are just waiting for the right opportunity to someone to ask us to have a go at their 70-footer. And after that, well we’re looking at developing a system for main engines as well. It’s all within reach.”

If you’re tired of having a dirty hull because of soot stains from your diesel generator, give Lang a call. He just may have the right kind of solution for your particular situation.

DeAngelo Marine Exhaust, 3330 S.W. 2nd Ave., Ft. Lauderdale, Fl. 33315.
954-763-3005 ext. 320. 954-467-8133 (fax).

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Posted by on November 15, 2014 in Maintenance


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Viking 42 Open

Viking Yachts is known for its meticulous attention to detail and high quality.  All equipment must perform flawlessly and look great.  In Marine Exhaust Systems, Viking found a like-minded partner.

Viking’s new 42 Open and 42 Convertible models combine maximum power and exceptional handling, with twin 600 hp Cummins QSC engines coupled to Zeus pod drives.  The Viking 42 Open cruises at 31 knots with a fuel consumption of 45 gph for a range of 344 nautical miles.  The 42 Convertible has a cruising speed of 30 knots and 333 nautical mile range with fuel consumption of 45 gph.
To optimize performance yet tame noise with this high-horsepower package, Marine Exhaust provided Viking with a complete, custom-engineered exhaust system.  Its turbo-to-transom solution includes a specially-designed bypass muffler, risers, surge tubes, hoses, clamps and all hardware.  Marine Exhaust’s package minimizes sound levels to just 85 dBA at the helm on the 42 Open and 83 dBA on the 42 Convertible. “The 42 is the smallest in our lineup, but we must still have the Viking ‘wow’ factor when the engine hatch opens,” said Peter Frederiksen, Viking Yachts director of communications.  “People can be intimidated and puzzled by an engine room.  No one feels that way with Viking, including the 42 Convertible and Open.  Everything is clean and organized.”
Viking was pleased with the easy turnkey installation.  “The Marine Exhaust Systems team delivered a seamless package well-suited to our rapid production requirements.  They are accessible and responsive every step of the way, particularly important on new model launches,” he said.
Viking 42C

Elegantly appointed like larger Vikings, the 42 Convertible’s salon features a plush, L-shaped lounge, spacious dinette and U-shaped galley with natural lighting.  The 112 sq. ft. cockpit is perfect for cruising and fishing.  For serious anglers, the tournament-style center console helm affords great visibility.  Recessed compartments house accessory switches and the pod system joystick control.

The 42 Open’s command bridge is just steps away from the cockpit.  The split observation mezzanine seating conceals insulated stowage  beneath the cushions.  Quick engine access is provided through a hatch on the command deck and via a command deck hydraulic lift for total accessibility from the cockpit. “Viking Yachts is a very demanding company, and Marine Exhaust Systems is a good fit with us,” said Frederiksen.  “They don’t view challenges as problems, they simply find a solution.  Neither of us is willing to throw in the towel and say it’s good enough.  We can always make it better─we know we can make it great.”  More information about Viking Yachts is available at
Established in 1973, Marine Exhaust Systems manufactures complete diesel exhaust system packages, from turbo to transom.  It offers superior exhaust risers, elbows, fiberglass mufflers, custom fiberglass products, silicone hoses, clamps and other high-quality hardware.

Contact Marine Exhaust Systems, 3640 Fiscal Ct., Riviera Beach, FL  33404.  561-848-1238
Fax 561-848-1298.;
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Posted by on December 9, 2011 in Uncategorized


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