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徐剑华 《上海海运学院学报》1990,11(1):54-58
本文对20多种有希望在21世纪替代石油的运输船舶能源进行了分析讨论,笔者认为,液化煤、水煤浆、页岩、焦油砂、甲醇和酒精等几种能源将有可能被广泛应用于船舶,并对核能、木炭、液化石油气、压缩天然气和植物油等能源用作船舶动力的局限性也进行了讨论。 相似文献
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正鹿特丹港将在2018年6月份首次体验船对船(STS)加注液化天然气燃料(LNG refueling),这将成为航运业使用清洁燃料的重要里程碑之一。鹿特丹港高级安全顾问Cees Boon声称,STS方式加油将使托运人更容易接受清洁燃料,6月份通过STS运作加注LNG燃料的首批船舶只是短途海运船舶。LNG燃动邮船将于11月份跟进,在2019年底为更大型的远洋船舶服务。就短程LNG燃动船而言,这种发展很重要。在鹿特丹码头,这 相似文献
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船用柴油机燃用天然气比燃用柴油机有许多优点.一是从环保角度看,使用压缩天然气作燃料,改变了柴油作燃料的许多弊端,既消除了柴油机作燃料所排放的大量黑烟,又可减少对水域的污染. 相似文献
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浅谈LNG动力船的现状与发展趋势 总被引:1,自引:0,他引:1
将液化天然气(LNG)作为船舶燃料,部分或完全替代柴油燃料,可以达到节省燃油和降低排放污染物的双重目的。本文拟就LNG动力船的经济性和环保性进行分析,探讨LNG动力船的现状及发展趋势。 相似文献
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基于LNG(液化天然气)的物理性质,通过与柴油的对比分析,表明液化天然气作为内河运输船舶燃料具备明显的经济性、环保性、安全性,纵观发展LNG船舶燃料和宿迁液化气船舶的使用状况,提出应用LNG具有美好的发展趋势与广阔的应用前景。 相似文献
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LNG(液化天然气)作为船舶燃料,其低碳环保、成本降低、安全系数高、符合国际排放标准等优势明显。挪威船级社(DNV)发表的《实现低碳航运之路--2030年减排潜力》的研究报告分析了25种措施的不同减排效果及相对应的成本效益,结果表明,最有效的措施就是使用液化天然气作为燃料,它几乎可以100%减排硫氧化物、减少85%-90%的氮氧化物和15%-20%的二氧化碳的排放,并预测随着环保法规的实施,天然气动力船将在2015年左右大规模使用。 相似文献
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摘要:将液化天然气(LNG)作为船舶燃料,部分或完全替代柴油燃料,可以达到节省燃油和降低排放污染物的双重目的。本文拟就LNG动力船的经济性和环保性进行分析,探讨LNG动力船的现状及发展趋势。 相似文献
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《船舶与海洋工程学报》2021,(1)
Emissions of exhaust gases and particulate matter from a dual fuel marine engine using methanol as fuel with marine gasoil as pilot fuel have been examined for a ferry during operation. The emission factor for nitrogen oxides is lower than what is typically found for marine gasoil but does not reach the tier III limit. The emissions of particulate matter are significantly lower than for fuel oils and similar to what is found for LNG engines. The main part of the particles can be found in the ultrafine range with the peak being at around 18 nm. About 93% of the particles are evaporated and absorbed when using a thermodenuder, and thus a large majority of the particles are volatile. Methanol is a potential future marine fuel that will reduce emissions of air pollutants and can be made as a biofuel to meet emission targets for greenhouse gases. 相似文献
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中小型LNG运输船液货罐设计技术 总被引:2,自引:0,他引:2
随着LNG的广泛应用,为适应LNG的运输新需求,近年来提出一种新船型——中小型LNG运输船。他凭借着营运周期短、中转频繁、造价低廉等优势而备受关注,而设计此种船型与大型LNG船的区别主要在于对船体核心——液舱的设计。通过研究相似船型LPG船及乙烯船及其液货罐,阐述了中小型LNG运输船液舱的设计方法及关键技术,属对设计此种新船型的有益尝试。 相似文献
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介绍海港LNG船舶航行实行交通管制的原因,对比分析了LNG船舶与LPG船舶的危险性。结合我国内河液体散货运输船舶航行管理现状,对小型LNG船舶在内河航行的可能风险及应对措施进行探讨,认为采用双壳双底结构的小型LNG船舶在我国内河正常航行是可行的,不需要采取特殊的交通管制措施。 相似文献
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靠系泊作业监控系统集成 总被引:1,自引:0,他引:1
报道世界上最近建成的油气码头安装仪器设备对风、波、流、潮位,船舶靠速、接岸距离、靠泊夹角、漂移,乃至系缆力、船舶吃水,护舷变形以及输油(液气)臂的工作状态实施综合监控。 相似文献
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《船舶与海洋工程学报》2020,(1)
Enlarging the fleet of gas carriers would make it possible to respond to the growing demand for hydrocarbon gases, but it will increase carbon dioxide emissions. The International Maritime Organization(IMO) has developed the energy efficiency design index(EEDI) with the objective of carbon emission reduction for new ships. In this paper, thirty gas carriers transporting liquefied natural gas(LNG) and liquefied petroleum gas(LPG) and equipped with various types of main engines are considered.As shown by the calculation of the attained EEDI, 2 of the 13 LPG carriers and 6 of the 17 LNG carriers under study do not comply with the EEDI requirements. To meet the stringent EEDI requirements, applying thermochemical regenerators(TCRs)fed by main engine exhaust gases is suggested. Mathematical modeling is applied to analyze the characteristics of the combined gas-turbine-electric and diesel-electric power plant with thermochemical recuperation of the exhaust gas heat. Utilizing TCR on gas carriers with engines fueled by syngas produced from boil-off gas(BOG) reduces the carbon content by 35% and provides the energy efficiency required by IMO without the use of other technologies. 相似文献
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Ryuichi Shibasaki Takashi Usami Masahiko Furuichi Hiroyuki Teranishi Hironori Kato 《Maritime Policy and Management》2018,45(4):543-566
This study focuses on the expected impact of Northern Sea Route (NSR) usage and the Panama Canal (PC) expansion on liquefied natural gas (LNG) imports of Asian countries, from not only the macroeconomic viewpoint but also diversification of the supplying countries. First, the amounts saved from shipping costs due to these events are estimated, based on scenarios on the navigable period of the NSR, transit fee of the NSR considering the exchange rate between the Russian ruble and US dollar, and bunker fuel price. Second, a spatial general equilibrium model based on macroeconomic theory is applied to predict changes in LNG trade patterns and measure economic impacts due to the reduction of shipping costs. Finally, the impacts of NSR usage as well as the PC expansion on LNG imports of Asian countries are discussed based on the calculations. The results show that diversification of supplying countries for LNG imports can be observed, especially in Japan, the largest LNG importer in the world, and other Asian countries are secondarily affected by changes in Japan’s import pattern, with limited impacts on these countries’ national economies. 相似文献
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液化天然气(LNG)船舶进出港时通航排他性强,有必要进一步研究LNG码头适宜规模,以科学引导大型LNG接收站建设.基于多智能体信息交互的港口运营系统仿真方法,建立单个LNG港址单向专用航道模型,研究高负荷状态下2~6个LNG泊位时的船舶进出港及接卸作业全过程,评估LNG船舶相互影响状况下的进出港效率.结果表明,基于目前一般通航规则,单个港址LNG泊位数量2个较优,3个相对平衡,不宜超过4个.当达到4个泊位时,船舶进出港效率明显下降,潜在运营风险较高;且随着泊位数量进一步增多,效率会持续下降. 相似文献