The first LNG carrier in a series currently under construction by Samsung Heavy Industries (SHI) in Korea has completed gas trials, says an article published on man-es.
Individual cylinder control
Originally ordered in Q2 2021 and scheduled for delivery in July 2023, the ship is powered by MAN B&W ME-GA dual-fuel engines capable of running on fuel oil and LNG, and comes with Exhaust Gas Recirculation (EGR) for emission reduction.
MAN Energy Solutions furthermore reports that – as a first – the engine-control system sports a new control feature called ‘ME-GA opti’ for optimal engine operation through individual cylinder control.
Fuel-oil operation
Bjarne Foldager, Senior Vice President and Head of Two-Stroke Business, MAN Energy Solutions, said: “MAN Energy Solutions has always played a leading role in developing groundbreaking technologies that add value to our customers’ operations. Thus we have made EGR standard for the ME-GA, thereby reducing methane slip compared to first-generation Otto-cycle engines without EGR, which simultaneously improves fuel efficiency in both gas and fuel-oil operation. ME-GA-opti continues this trend and will further boost the ME-GA’s reputation.”
Individual-cylinder basis
Thomas S. Hansen, Head of Promotion and Customer Support, MAN Energy Solutions, said: “ME-GA-opti is the latest and most advanced control feature for the ME-GA engine and significantly improves its operation. It comprises an advanced and intelligent network of control algorithms that have been developed to optimise the combustion process on an individual-cylinder basis, and which ensure optimal operating conditions. I’m certain it will be received well by the market.”
Benefits engine performance
ME-GA-opti’s intelligent functionality benefits engine performance in several ways, including by:
- ensuring optimised conditions for the combustion process by reducing the influences of ambient temperature, pressure and humidity that can influence Otto-cycle engines;
- enabling maximum and stable gas potential for the engine;
- reducing fuel-ratio control activation – MEGA-opti is able to adapt the engine’s running conditions as the combustion moves towards the pre-ignition limit.
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Source: Man-es
