Thu 19 Jul 2012, 09:36 GMT

Tankers to be fitted with fuel-efficient engines


Energy-efficient engines to be supplied to nine tankers being built for Kuwait Oil Tanker Co.



Wärtsilä has announced that it will supply the main engines for a series of vessels being built for Kuwait Oil Tanker Co. (KOTC), a subsidiary of Kuwait Petroleum Corporation. Four VLCCs (Very Large Crude Oil Carriers), one Aframax tanker and four medium-range tankers are being built at the Daewoo Shipbuilding & Marine Engineering (DSME) shipyard in South Korea.

The VLCCs will be fitted with 7-cylinder Wärtsilä RT-flex 82T engines and a Waste Heat Recovery System, whereby the exhaust gas energy is utilized to generate steam. This steam is used to operate a turbo generator that produces electricity for the ship.

The Aframax vessel will be powered by a Wärtsilä 6-cylinder RT-flex 58T main engine, and the medium-range tankers by a Wärtsilä 7RT-flex50D main engine. All engines will be built by the Engine & Machinery Division of Hyundai Heavy Industries Co., Ltd. (HHI-EMD), which is a Wärtsilä licensee since 1975 and based in South-Korea. The orders were received during the first half of the year.

Wärtsilä's RT-flex common rail engine technology is designed with electronically controlled fuel injection and valve operation. Its benefits include extremely low Specific Fuel Oil Consumption (SFOC) across the entire operation range, and smokeless operation at all running speeds.

"The choice of Wärtsilä RT-flex engines ensures that these new vessels will be both fuel and energy efficient, and that their emissions will be minimized. It is obvious that the Wärtsilä RT-flex82 engine is increasingly becoming the preferred choice for VLCCs worldwide," said Lars Anderson, Vice President Merchant, Wärtsilä Ship Power.

KOTC has considerable experience with Wärtsilä's engine technology. The company already has two of its vessels fitted with Wärtsilä main engines and four vessels fitted with Wärtsilä auxiliary engines.


Suezmax crude oil tanker render. Guangzhou Shipyard secures Suezmax order, delivers vessels ahead of schedule  

China State Shipbuilding subsidiary reports nine vessel deliveries in the first quarter of 2026.

Clean ammonia project pipeline chart as of March 2026. Renewable ammonia pipeline grows despite Norway project freeze  

GENA Solutions tracks 325 projects totalling 146 MMT of capacity by 2034 despite execution challenges.

Antwerpen and Arlon naming ceremony. Exmar names world’s first ocean-going ammonia dual-fuel gas carriers in South Korea  

Two 46,000-cbm vessels can reduce CO₂ emissions by up to 90% during navigation.

Fujian province map with highlighted locations. Gulf Marine expands bonded lubricant supply network in China’s Fujian province  

Company adds supply points in Putian, Ningde and Fuqing, covering 20 terminals across the region.

Excelerate Acadia naming ceremony. Bureau Veritas classifies Excelerate Energy’s new 170,000-cbm FSRU Excelerate Acadia  

Vessel built by HD Hyundai Heavy Industries features dual-fuel engines and proprietary regasification system.

Osprey Energy logo. Osprey Energy seeks junior bunker trader to support Cebu trading activities from Netherlands  

Dutch marine fuel supplier targets Cebu region expansion through new training programme for Filipino candidates.

EUA prices dropping graphic. KPI OceanConnect highlights falling EUA prices as opportunity for shipowners to lock in compliance costs  

Marine fuel firm says timing carbon allowance purchases can reduce costs as EU emissions scope expands.

RINA employee in control room. RINA partners with Hanwha Group on battery-hybrid propulsion for ro-ro ferries  

Classification society to provide regulatory compliance verification for hybrid battery systems on newbuilds and retrofits.

Amadeus Titanium vessel. HGK Shipping’s Amadeus Titanium fitted with wind assistance system  

Coastal vessel equipped with VentoFoils at Dutch port to reduce fuel consumption on Covestro routes.

Sebastian Weder, Bunker One. Bunker One expands physical supply operations to Tallinn and Finland  

Marine fuel supplier extends Baltic Sea coverage with new operational presence in Estonia and Finland.