Review of propulsion systems on LNG carriers

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• 作者：Ignacio Arias Ferná ; ndez^a ; ^{ignacio.arias@udc.es" class="auth_mail" title="E-mail the corresponding author} ; Manuel Romero Gó ; mez^b ; ^{m.romero.gomez@udc.es" class="auth_mail" title="E-mail the corresponding author} ; Javier Romero Gó ; mez^b ; ^{j.romero.gomez@udc.es" class="auth_mail" title="E-mail the corresponding author} ; Á ; lvaro Baaliñ ; a Insua^b ; ^{alvarobi@udc.es" class="auth_mail" title="E-mail the corresponding author}
• 关键词：2STwo-Stroke ; 4SFour-Stroke ; AFRAir/Fuel Ratio ; BLRBoiler ; BOGBoil-Off Gas ; COGESCombined Gas turbine Electric & Steam system ; DFDual Fuel ; DFDEDual-Fuel (medium speed) Diesel Electric propulsion) ; DFDM(HP)Dual-Fuel (low speed) Diesel Mechanical propulsion (high pressure) ; DFDM (LP)Dual-Fuel (low speed) Diesel Mechanical propulsion (low pressure) ; DFGEDual-Fuel Gas turbine Electric propulsion ; DFSMDual-Fuel Steam turbine Mechanical propulsion ; DWIDirect Water Injection ; GCUGas Combustion Unit ; G
• 刊名：Renewable and Sustainable Energy Reviews
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：67
• 期：Complete
• 页码：1395-1411
• 全文大小：3015 K

文摘

Vessel ozone depleting emission regulations are regulated in Annex VI of the MARPOL Convention, wherein the maximum levels of NO_x, SO_x and suspended particles are established. These increasingly strict regulations, together with the increase in natural gas consumption and its price, have conditioned propulsion systems implemented on board vessels.

This article reviews the different propulsion systems used on board vessels for the transport of Liquefied Natural Gas (LNG). The study describes the main characteristics of the propulsion systems, and the advantages and drawbacks that come along with these, from its very beginnings up to the systems installed to date. The described propulsion systems include both gas and steam turbines, combined cycles, 2 and 4 stroke internal combustion engines, as well as reliquefaction plants, while encompassing mechanical, electric and Dual Fuel (DF) technology systems.

The propulsion systems implemented have undergone continual alteration in order to adjust to market needs, which were always governed by both efficiency and the possibility of consuming boil-off gas (BOG), always in compliance with the strict antipollution regulations in force.

The current direction of LNG vessel propulsion systems is the installation of 2-stroke DF low pressure engines due to their high efficiency and their possibility of installing a BOG reliquefaction plant. Another great advantage of this propulsion system is its compliance with the IMO TIER III emission regulations, without the need to install any supplementary gas treatment system.