Mitsui E&S : DU Co., Ltd. Receives Order for Next-Generation 7X62DF-S2.0 Engines (with VCR)
December 11, 2023 at 09:18 pm EST
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Mitsui E&S DU Co., Ltd. (President: Hiroyuki Takumi, located in Aioi, Hyogo, hereinafter, "Mitsui E&S DU"), a group company of MITSUI E&S Co., Ltd. (President: Takeyuki Takahashi, located in Chuo-Ku, Tokyo, hereinafter, "MITSUI E&S"), received an order for two 7X62DF-S2.0 engines from the domestic shipyard as the first order for these engines in the world. The 7X62DF-S2.0 engine is the next generation of engine powered by LNG.
The engines will be installed in car carriers that will be able to transport 7000 vehicles. The first vessel will be completed in April 2025.
The X62DF-S2.0 series of engines has shown that its fuel consumption in gas mode is 3.7 g/kWh (R1 point) better than the conventional X62DF series engines, even while being lighter and more compact.
The engine will be equipped with a Variable Compression Ratio (VCR) mechanism that achieves an excellent specific fuel consumption. The VCR mechanism improves specific fuel consumption by about 3% in the gas mode or about 6% in the diesel mode by optimizing the compression ratio according to the engine's output and the properties of LNG as a fuel, depending on operational conditions such as operation load. It will contribute greatly to the reduction of fuel expenses and CO2 emissions during ship operation.
Mitsui E&S DU jointly developed the VCR mechanism with Winterthur Gas & Diesel Ltd. The VCR mechanism has been gradually accepted around the world as Mitsui E&S DU has received orders for four engines equipped with the VCR mechanism including the most recent orders. Mitsui E&S DU has received offers for the purchase of over 30 engines with the mechanism from clients in South Korea.
The engines are also equipped with the on-engine iCER system, a modification to the system intelligently controlling the engine through exhaust recirculation (iCER) that drastically reduces methane slip. Combining the X-DF low-pressure gas injection system with iCER and the VCR mechanism achieves a greenhouse gas (GHG) emissions reduction equal to the high-pressure gas injection DF engine.
Mitsui Eamp;S DU will contribute to the development of a sustainable maritime shipping industry by receiving orders for eco-friendly engines.
MES - Mitsui Engineering & Shipbuilding Co. Ltd. published this content on 12 December 2023 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 12 December 2023 02:17:25 UTC.
Mitsui E&S Co Ltd, formerly Mitsui E&S Holdings Co Ltd, is primarily engaged in ship, marine development, machinery, and engineering businesses. The Company operates its business through four segments. The Ship segment provides ships, naval vessels, high-speed passenger ships, offshore structures, underwater equipment, design engineering services, ship-related equipment and machinery, and steel structures. The Marine Development segment provides floating offshore oil and gas production, storage, and offloading facilities. The Machinery segment provides marine and land-use diesel engines, marine equipment, gas engines, steam turbines, blowers, compressors, gas turbines, among others. The Engineering segment provides power generation projects and general overseas civil engineering and construction work. The Company also engages in land-based diesel power plant business, information and communication equipment business, system development business, gas-related engineering, among others.
MITSUI E&S CO., LTD. 
