‘We Provide Turn-key Power Generation Solutions for O&G Production’

Patrick Baan,
Director, Ship Performance, Wärtsilä Ship Power

Tomas Aminoff
General Manager Applications Developments, 4-Stroke Wärtsilä Ship Power
Patrick Baan, Director, Ship Performance, Wärtsilä Ship Power and Tomas Aminoff, General Manager Applications Developments, 4-Stroke Wärtsilä Ship Power With their Ship Design Department, Wärtsilä, has the possibility to optimise the capability of the vessel tighter with the customer from the beginning of the project, articulates Patrick Baan and Tomas Aminoff. Excerpts from the interview:

Kindly detail the marine solutions you provide to your different customers? What are their different needs and demands, and how do you make sure your customers find their "shorter route to bigger profits"?
Today Wärtsilä has one of the largest, if not the largest offering in the marine market. We might be best known about our marine diesel engines, for example several navies have our water jets and our seals and bearings can be found in submarines. With our Ship Design department we have the possibility to optimise the capability of the vessel tighter with the customer from the beginning of the project.
We provide turn key power generation solutions for O&G production. For electric powered vessels we offer a unique power distribution concept which requires no transformers in the motor drives named Wartsila Low Loss Concept. The LLC makes use of specially in house designed frequency convertors. The LLC solution is the most compact, the most redundant and the most efficient electrical power distribution system on the market and has become preferred choice for electric offshore vessels. This has come through involvement for mission based optimisation to maximise profit over the life cycle of the asset.

Please brief us on Wartsila's gas engine technologies.
We have produced gas engines since 1987 and use three technologies today. These are:
• Gas-Diesel engines which operate on any mixture of oil and compressed gas. These are used where raw mixes are locally available, but refined gas is not; for on- and offshore drilling rigs, for example, remote power stations, pipeline booster stations, etc. The limitation for marine use is that it required high pressure gas supply and because it is working according the Diesel burning process IMO Tier 3 levels are not met without some level of after treatment.
• Spark-ignited engines which operate solely on low-pressure gas. Since 1992, these engines have been widely used in power plants and some other applications. As a main supplier to local grids and an environmental back-up for green energy plants such as wind parks, these engines are a key focus for Wärtsilä and we are today the market leader in this sector for land based powerplants.
• Dual-fuel gas engines which operate on both LNG and liquid fuels. We believe that these engines, which switch instantly between gas and fuel oil as necessary, are most suitable for marine and offshore applications. Since 1995, we have sold about 720 units, which have now exceeded six million running hours in both land-based and marine applications. To date, marine applications cover mostly LNG and oil carriers, offshore support vessels, passenger ships and inland waterway craft. We have taken the view that the built in redundancy of dual-fuel technology provides the best reliability in a marine context and is particularly appropriate for tugs and workboats and their safe operation in confined spaces. These engines offer the same redundancy that would be available by duplicating the gas installation and/or another propulsion plant. Dual-fuel engines is a full Sulfur ECA and IMO Tier 3 NOx solution and does not require any after treatment when operated in gas mode.

What technologies has the company developed to meet the tightening environmental regulations?
For gas as fuel is definitely one of the future solutions we believe in, but gas might not be the answer for all questions. As we believe that HFO will be widely available in the future Wärtsilä has developed Scrubber technology for exhaust gas cleaning. Depending on the operating profile we can offer either a closed loop system, open loop system or a combination of both, a so called hybrid. Also our own catalysts for NOs reduction have been optimised to use together with high sulfur fuels and scrubbers.
In addition to engine related emissions we also offer Ballast water treatment, oily water separation and seals that do not risk to leak oil into the water. For vessels with a very divers missions profile and or dynamic positioning we develop the market leading Low Loss concept.

The company is also involved with LNG design and technology, kindly brief us on the same.
Wärtsilä Ship Design Norway is one of the leading ship design offices when it comes to LNG powered vessels. It is the market leader of gas powered offshore supply vessels in North Sea area.
On gas technology side Wärtsilä got through the acquisition of Hamworthy world leading know-how and products for all kind of gas handling both on shore and for vessel use to strengthen our portfolio.

What is your USP ?
When looking on all the environmental driven changes that take place everyday around us, Wärtsilä is as company in a unique position thanks to our market leading position in gas technology and other emission abatement technologies. And we have a solid reference list for most of these technologies.

What are your key focus areas and future growth prospects?
The focus is in energy efficiency, fuel flexibility and total cost of ownership. By having the best in class offering in these areas we can achieve a healthy growth in both turnaround and profit.