Economic Analysis and the EEXI Reduction Potential of Parallel Hybrid Dual-Fuel Engine-Fuel Cell Propulsion Systems for LNG Carriers

被引：6

作者：

Ammar, Nader R. ^{[1
,2
]}

Almas, Majid ^{[1
]}

Nahas, Qusai ^{[1
]}

机构：

[1] King Abdulaziz Univ, Fac Maritime Studies, Dept Marine Engn, Jeddah, Saudi Arabia

[2] Alexandria Univ, Fac Engn, Dept Naval Architecture & Marine Engn, Alexandria, Egypt

来源：

POLISH MARITIME RESEARCH | 2023年 / 30卷 / 03期

基金：

英国科研创新办公室;

关键词：

EEXI; EPL; alternative fuels; LNG carrier; economic analysis; FISHING CARRIERS;

D O I：

10.2478/pomr-2023-0039

中图分类号：

U6 [水路运输]; P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

One potential solution for reducing carbon dioxide emissions from ships and meeting the Energy Efficiency Existing Ship Index (EEXI) requirements is to use a hybrid propulsion system that combines liquid hydrogen and liquefied natural gas fuels. To improve energy efficiency for diesel-electric dual-fuel ship propulsion systems, an engine power limitation system can also be used. This paper examines the potential use of these systems with regard to several factors, including compliance with EEXI standards set by the International Maritime Organization, fuel ratio optimisation, installation requirements, and economic feasibility. As a case study, an LNG carrier is analysed, with dual-fuel diesel-electric and two hybrid systems adjusted to meet IMO-EEXI requirements with engine power limitation percentages of 25%, 0% (hybrid option 1), and 15% (hybrid option 2), respectively. From an economic standpoint, the liquid hydrogen-based system has competitive costs compared to the dual-fuel diesel-electric system, with costs of 2.1 and 2.5 dollars per kilogram for hybrid system options 1 and 2, respectively.

引用

页码：59 / 70

页数：12

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