Wärtsilä Ship Design has unveiled a new Aframax tanker design said to be highly efficient to meet current and upcoming emissions legislation.
The new double hull, single screw crude oil tanker design features a Computational Fluid Dynamics (CFD) optimized hull for less resistance and higher efficiency, with special consideration given to flow lines and pressure distribution along the hull. Meanwhile a cylindrical bow accommodates a range of operational draughts even in rough weather conditions.
The propulsion system is based upon Wärtsilä’s new high performance 2-stroke X62 main engine, with an extra long stroke and low rpm. It also has a minimized physical width to allow a slimmer aft body design, offering further propulsion efficiency.
Compared to currently available main engine options, Wärtsilä says the X62 engine can achieve fuel savings of seven percent on the specific vessel design, and the same vessel speed can be reached using one less cylinder, i.e. six instead of seven cylinders.
For emissions compliance, an integrated Wärtsilä exhaust gas scrubber has been placed on the funnel and connected to the main engine, auxiliary engines and auxiliary boilers. The scrubber effectively reduces sulphur oxide (SOx) emissions, and meets the 0.1 percent sulphur limit even with HFO (Heavy Fuel Oil) having a sulphur content of 3.5 percent.
Meanwhile, a Wärtsilä SCR (Selective Catalytic Reduction) system has been placed before the turbocharger turbine for the main engine. The SCR is a post combustion nitrogen oxides (NOx) abatement system that permits optimised combustion, in terms of efficiency, while reducing NOx emissions by more than 90 percent. The abatement equipment is tuned with the main and auxiliary engines for effective operations across the complete load range and to meet IMO Tier III requirements.
Aframax Tanker Particulars:
Length overall: 253.20 m approx.
Beam: 44m
Max draught: 15.2 m
Carrying capacity: abt. 117,000t dwt
Net cargo: abt. 134,250m3 in 12 cargo tanks
Loading/discharge rate at the manifold: 9000m3/hr
Bow loading system: 8000m3/hrs
Dive into a sea of information with our meticulously curated weekly “Dispatch” email. It’s more than just a newsletter; it’s your personal maritime briefing.
Dive into a sea of information with our meticulously curated weekly “Dispatch” email. It’s more than just a newsletter; it’s your personal maritime briefing.
(Bloomberg) — Russia’s state oil tanker company PJSC Sovcomflot said that US sanctions are putting pressure on its operations, the latest sign that the measures are complicating the delivery of...
March 11 (Reuters) – U.S. crude oil production lead global oil production for a sixth straight year, with a record breaking average production of 12.9 million barrels per day (bpd), the Energy...
BEIJING/MANILA, March 5 (Reuters) – The Philippines summoned China’s deputy chief of mission in Manila on Tuesday to protest what it called “aggressive actions” by Chinese naval forces against a resupply mission...
March 5, 2024
Total Views: 3624
Why Join gCaptain Club?
Be Informed: Stay updated with the latest maritime news and trends.
Connect: Network with a community of maritime professionals and enthusiasts.
Gain Insights: Receive exclusive content and personal perspectives from our CEO.
This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience.
Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.