Retrofit Solutions for Exhaust Gas and Water Cleaning

MarineLink.com
Monday, November 04, 2013

Upcoming environmental regulations will affect existing vessels, and as a consequence there is a growing demand for exhaust gas cleaning and ballast water treatment systems.

Retrofitting both scrubbers and ballast water management systems is – or will soon be – required for many ships to comply with regulations. There are retrofit solutions available across all ship types, from cruise vessels to merchant and offshore ships. Space requirement is usually the most critical factor when planning and executing a retrofit project but Wärtsilä has found solutions to the challenge.

The execution of retrofit projects for both scrubbers and ballast water management systems requires similar types of planning and engineering. There are typically three things that are analysed when planning a retrofit of exhaust gas or a water cleaning system. First, the space requirements of the system are analysed, taking into consideration the available space in the vessel. Next, engineers study the impact of the additional systems in terms of their weight, ship stability in case of scrubber systems, structural modifications, and relocation of any existing equipment inside the ship. Finally, engineers assess how to further optimise the installation method, with the aim of minimising costs and downtime during installation.

“Retrofitting exhaust gas or ballast water cleaning systems is feasible for all ship types – but how it is done can vary depending on the ship type. Finding space for the system is the most common challenge. When it comes to scrubber installations, we, for example, sometimes need to make changes in the funnel shape or rethink the use of spaces in the vessel to create more room for cleaning systems. However, we have not come across any project in which retrofitting would not be possible. It is just a matter of identifying the best solution or compromise with the ship owner,” says Leonardo Sonzio, Director Retrofit, Wärtsilä Environmental Solutions.

According to Sonzio, the biggest cost factors in retrofits are the equipment, and the installation operations and material. Generally, the cost of the equipment varies depending on the type and size of the ship. The installation cost depends on the extent of modifications to the existing ship, and the time needed at the dry dock.  As a rule of thumb, equipment and installation each represent forty percent of the total price for a turnkey retrofit; the remaining twenty percent is related to engineering, project management, site management, logistics and class approval costs.

“We have delivered or are in the process of delivering dozens of new build and retrofit projects for scrubbers. These include tankers, bulk carriers, container vessels, ro-ros, cruise vessels and ferries. More and more inquiries are coming in from ship owners. Also, we are expecting the demand for ballast water management systems to grow steadily, and we have experience with both new build and retrofit cases. Our approach to a successful retrofit project is true partnership and thorough engineering and planning before the contract is even signed. This enables us to manage risks in close cooperation with our customer,” Sonzio explains.

Wärtsilä ballast water management systems use a two stage approach involving mechanical filtration of organisms followed by a choice of either UV treatment  or electro-chlorination. The Wärtsilä portfolio of scrubbers includes three configurations: seawater open loop scrubbers, closed loop scrubbers, and hybrid scrubbers. All three configurations include a wash water treatment plant to clean the effluents before discharge into the sea with no risk of harm to the environment.

Wärtsilä said it is the only company capable of providing both scrubber and ballast water systems combined with turnkey retrofit services. With its professional project organization, Wärtsilä is able to manage all kinds of retrofit projects worldwide. Wärtsilä’s global services network supports customers throughout the lifecycle of the ship.

The most evident approaching regulations for existing vessels are the IMO Marpol Annex VI focusing on sulphur oxide (SOx) emissions, and the IMO Global Ballast Water Convention.

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

Marine Propulsion

Voith to Exhibit High Efficiency and DP Systems at SMM

At this year’s SMM in Hamburg, Voith will showcase propulsion systems and vessel concepts focusing on high efficiency and dynamic positioning even under challenging conditions.

Combat Cold Corrossion via Condition Monitoring

Parker Kittiwake explains why frequent condition monitoring is the most effective measure in combating the recent cold corrosion phenomenon The recent trend in

Unified Emissions Monitoring: Turbulo Bluemon

Last month at Posidonia SKF Blohm and Voss Industries launched the Turbulo BlueMon emission monitoring system, a system that is designed to record all emissions on board ships via a single system.

Ship Repair & Conversion

Combat Cold Corrossion via Condition Monitoring

Parker Kittiwake explains why frequent condition monitoring is the most effective measure in combating the recent cold corrosion phenomenon The recent trend in

Hyde Marine, Goltens Enter Engineering Agreement

Hyde Marine, Inc., announced today it has launched an agreement with Goltens Green Technologies division to help shipowners determine how to best fit the chemical

Three Share in Navy US$96.8-M Twin-Ship Modernization Contract

The U.S. Department of Defense informs that AMSEC LLC; CDI Marine Co. LLC; and Q.E.D. Systems Inc., (all located in Virginia Beach, Virginia) are each being awarded a cost-plus-fixed-fee/cost-only,

Marine Power

Voith to Exhibit High Efficiency and DP Systems at SMM

At this year’s SMM in Hamburg, Voith will showcase propulsion systems and vessel concepts focusing on high efficiency and dynamic positioning even under challenging conditions.

Combat Cold Corrossion via Condition Monitoring

Parker Kittiwake explains why frequent condition monitoring is the most effective measure in combating the recent cold corrosion phenomenon The recent trend in

Unified Emissions Monitoring: Turbulo Bluemon

Last month at Posidonia SKF Blohm and Voss Industries launched the Turbulo BlueMon emission monitoring system, a system that is designed to record all emissions on board ships via a single system.

News

Messer's CEO Norville Announces Retirement

Bill Heller to assume the position as Messer Cuttings Systems’ President and CEO Gary Norville started at Messer Cuttings Systems Inc. in September 1980 selling and installing cutting machines.

Charter Boat Crew Rescued in Gulf of Mexico

U.S. Coast Guard search and rescue crews worked throughout the night to find a missing charter boat with four people aboard as far as 70 miles off Galveston. A

Iraq's Kurds Have Right to Sell Oil While Squeezed by Baghdad

Iraq's Kurdish region has the right to keep selling oil as long as the Baghdad government keeps cutting its budget, the head of the Kurdish parliament's energy committee said on Tuesday,

Marine Equipment

Messer's CEO Norville Announces Retirement

Bill Heller to assume the position as Messer Cuttings Systems’ President and CEO Gary Norville started at Messer Cuttings Systems Inc. in September 1980 selling and installing cutting machines.

XtendFRESH Now Available from Carrier Transicold

The XtendFRESH atmosphere control system, which preserves quality and extends shipping distances for perishables shipped in refrigerated containers, is now available from Carrier Transicold.

Voith to Exhibit High Efficiency and DP Systems at SMM

At this year’s SMM in Hamburg, Voith will showcase propulsion systems and vessel concepts focusing on high efficiency and dynamic positioning even under challenging conditions.

Vessels

London Shipping Professionals Weigh in for SPNL Report

The Shipping Professional Network London (SPNL) has  released their full Future London report, an initiative that gathered the views and opinions of London’s young

U.S. Marshalls Ordered to Seize Kurdish Oil Cargo off Texas

Acting on a request from the central government in Iraq, a U.S. judge has signed an order telling the U.S. Marshals Service to seize a cargo of oil from Iraqi Kurdistan

Aker Philadelphia Shipyard ASA: Purchase of own shares

Aker Philadelphia Shipyard AKPS), a leading U.S. commercial shipyard constructing vessels for operation in the Jones Act market, has on July 25, 2014 purchased 1,

Ballast Water Treatment

Hyde Marine, Goltens Enter Engineering Agreement

Hyde Marine, Inc., announced today it has launched an agreement with Goltens Green Technologies division to help shipowners determine how to best fit the chemical

Hyde Marine Makes BWTS Installation Agreements

Hyde Marine, Inc., a wholly owned subsidiary of Calgon Carbon Corporation, says it has established two partnership agreements for installation of the chemical-free

Hyde Marine Selects 2 Installation Partners

Hyde Marine, Inc., a wholly owned subsidiary of Calgon Carbon Corporation, announced today it has established two partnership agreements for installation of the

 
 
Maritime Careers / Shipboard Positions Navigation Offshore Oil Pipelines Pod Propulsion Salvage Ship Electronics Ship Repair Ship Simulators Shipbuilding / Vessel Construction
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: 0.1656 sec (6 req/sec)