MAN EcoCam Further Optimizes Slow Steaming

Posted by Eric Haun
Monday, February 03, 2014
Image: MAN Diesel & Turbo

New retrofit cuts fuel budgets

MAN Diesel & Turbo is introducing the MAN EcoCam as a retrofit solution for the low-load optimization of its low-speed, mechanical engines with single turbochargers. According to the manufacturer, the EcoCam offers significant fuel savings of 2 - 5 g/kW – with short payback times – and delivers an increased Pmax cylinder pressure through the adjustable exhaust-valve timing.

Christian Ludwig – Head of Retrofit & Upgrade – MAN Diesel & Turbo, said, “Slow-steaming is now an established industry standard across all segments, including the tanker and bulker markets, and MAN Diesel & Turbo continuously seeks to further refine its technology and improve efficiency. The MAN EcoCam adjusts the exhaust-valve timing between 10 and 60% load, giving a 2 - 5 g/kW fuel saving with minimal to no interruption to a vessel's schedule during installation.”

He concluded, “The MAN EcoCam has been thoroughly tested and we are happy that we are now able to provide our customers with a low-load tuning method for mechanically controlled engines with a single turbocharger.”

MAN Diesel & Turbo is initially rolling out the MAN EcoCam to a number of its MAN B&W S50MC-C engines, and will eventually introduce it stepwise to its mid- and large-bore engine program.

Functionality

The MAN EcoCam introduces a flexible cam profile, called a virtual cam. The profile is controlled hydraulically by adjusting the amount of actuator oil in the hydraulic pushrod.

Low-load tuning has an impact on torsional vibration and NOx. When a low-load tuning method is installed on an engine, the torsional vibrations’ impact and the NOx level have to be taken into account to ensure that the vibrations’ impact is not harming the engine and that the NOx level is in compliance with IMO regulations.

The new torsional vibration calculation and NOx amendment are included when buying the MAN EcoCam.

Fuel Savings and Payback

The EcoCam’s effect on fuel reduction has been verified by two independent testbed installations and aboard a test vessel in service.

The earlier closing of the exhaust valve provides a higher compression pressure, thereby delivering a higher combustion pressure and a lower fuel-oil consumption. Flexible exhaust-valve timing has traditionally only been available to electronically controlled engines.

Depending on an engine’s load profile, the MAN EcoCam typically generates savings in the range of 2 - 5 g/kWh. For smaller engines, this can result in a payback period of as little as 1½ years as is the case, for example, with a 6S50MC-C engine with 6,000 annual running hours.

mandieselturbo.com
 

  • Image: MAN Diesel & Turbo

    Image: MAN Diesel & Turbo

  • Image: MAN Diesel & Turbo

    Image: MAN Diesel & Turbo

Maritime Reporter January 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

New Products

New YANMAR EPA Tier III Engine

YANMAR America introduced its new EPA Tier III compliant commercial marine diesel engine. Rated at 755 mHP and 1,900 rpm, the new 20.38-liter 6AYAM-ET uses a full mechanical control system.

Volvo Penta Debuts New Marine Engines

Volvo Penta introduced the first two models of its next-generation sterndrive marine gasoline engines. The new 4.3-liter catalyzed V6 engines, rated at 200 and 240 hp,

New Berthing System for Mooring Cargo Ships

Eagle Rock Aggregates, U.S. subsidiary of Polaris Materials Corporation, has completed a new aggregate import facility at the Port of Long Beach that features a

Environmental

Ecochlor BWTS Chosen for 8 New Bulkers

Times Navigation, Inc. has selected Ecochlor, Inc. to provide ballast water treatment systems (BWTS) for installation on a fleet of eight new CROWN63 (63,500 DWT)

Signal Ship Repair Achieves OSHA Milestone

Signal International announced that on December 31, 2014, the Signal Ship Repair Operations located in Mobile, Alabama achieved one full year and worked 387,926 manhours,

International Sulphur Campaign Launched

An international information campaign on the new, stricter sulphur requirements and their enforcement will be launched in February and, at the same time, cooperation

Fuels & Lubes

GTT to Exhibit at Euromaritime

Gaztransport & Technigaz (GTT), a designer of membrane containment systems for the maritime transportation and storage of liquefied natural gas (LNG), will exhibit at Euromaritime,

International Sulphur Campaign Launched

An international information campaign on the new, stricter sulphur requirements and their enforcement will be launched in February and, at the same time, cooperation

Sweden-Poland Maritime Link Improved

The EU's TEN-T Program will co-fund with over €2 million the development of the sea ports of Trelleborg (Sweden) and Świnoujście (Poland), to increase their competitiveness and sustainability,

News

Shepler’s New Ferry Takes Shape

Sparks are flying on the bulkhead and engine room of the $3.8 million, 85-foot Miss Margy, the newest addition to the Shepler’s Mackinac Island Ferry fleet, at Moran Iron Works.

LEEVAC Launches First PSV for Tidewater

On Tuesday, January 27, LEEVAC Shipyards Jennings, LLC launched hull 367, a platform supply vessel (PSV) designed by LEEVAC Design Services, LLC (300 DE-52 HAB PSV).

Puget Sound Container Volumes Flat in 2014

Container volumes through Puget Sound’s largest container ports remained flat in 2014, according to numbers released jointly for the first time by the ports of Seattle and Tacoma.

Marine Equipment

New YANMAR EPA Tier III Engine

YANMAR America introduced its new EPA Tier III compliant commercial marine diesel engine. Rated at 755 mHP and 1,900 rpm, the new 20.38-liter 6AYAM-ET uses a full mechanical control system.

Volvo Penta Debuts New Marine Engines

Volvo Penta introduced the first two models of its next-generation sterndrive marine gasoline engines. The new 4.3-liter catalyzed V6 engines, rated at 200 and 240 hp,

BICERA Explosion Relief Valve

Sometimes it seems cliché to repeat that a product or system “protects equipment and saves lives,” but in the case of valve manufacturer Penn-Troy, which recently

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Navigation Offshore Oil Salvage Ship Electronics Ship Repair Ship Simulators 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: 0.2225 sec (4 req/sec)