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船舶压舱水耗费大量能源、人力和物力,且已成为当前海洋四大污染源之一,但是人们在如何解决船舶压舱水课题上却遇到难以想象的严峻挑战。本文介绍日本NOBS设计建造研究所开发研究中的几种无压舱水船舶,可以让人们看到从根本上解决压舱水问题的光明。 相似文献
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船舶非碳能源利用模式和能效提升的协同作用 总被引:1,自引:1,他引:0
随着石化能源的短缺和环保法规的日益严格,发展绿色船舶,减少CO2排放,提高船舶能效,已是大势所趋。非碳能源利用和船舶减阻技术是能效提升的有效方式,然而受船舶运营和非碳能源利用模式的影响,很难孤立的考虑非碳能源的利用效果,非碳能源利用和能效提升的方法技术之间有着紧密联系,需要研究船舶非碳能源利用模式和能效提升的协同作用,在引入等效非碳能源概念的基础上,对非碳能源利用与等效非碳能源利用模式进行了阐述,通过创建特征值及计算公式,定量分析了船舶非碳能源利用与船舶减阻技术之间的协同关系以及对船舶能效的影响,对新船能效指数设计和船舶能效管理均具有指导意义。 相似文献
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随着IMO 2020排放要求的出台执行,以及人们对环境问题的关注度越来越高,对环境的保护意识增强,船舶污染改善也成为热门话题。而使船舶产生环境污染的动力能源首当其冲成为需要改善的问题之一。文章介绍了几种目前应用比较多的清洁能源及其主要特点优势。 相似文献
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综述船舶应用太阳能的现状与发展,分析太阳能在船舶动力装置中应用的制约因素,提出将太阳能作为船舶的主动力能源和辅助机械的动力能源外,还可将太阳能应用于船舶制冷空调、照明系统及大型油船缷贷和加热系统之中。 相似文献
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如果我们对比蒙大拿州冰河国家公园历史和当前的照片,我们就可以轻易地发现冰川正在消融,海平面正在上升。目前人们普遍认为全球变暖是碳排放造成的恶果。2007年2月2日,联合国环境规划署发布了迄今为止关于气候变化最权威的科学报导。有九成的把握认为,矿物燃料的使用及其他人类活动导致了气候变化。 相似文献
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白令海潮汐能通量和底边界能耗散 总被引:1,自引:0,他引:1
The spatial distribution of the energy flux, bottom boundary layer (BBL) energy dissipation, surface elevation amplitude and
current magnitude of the major semidiurnal tidal constituents in the Bering Sea are examined in detail. These distributions
are obtained from the results of a three-dimensional numerical simulation model (POM). Compared with observation data from
seven stations, the root mean square errors of tidal height are 2.6 cm and 1.2 cm for M2 and N2 respectively, and those of phase-lag are 21.8° and 15.8° respectively. The majority of the tidal energy flux off the deep
basin is along the shelf edge, although some of this flux crosses the shelf edge, especially in the southeast of the shelf
break. The total M2 energy dissipation in the Bering Sea is 30.43 GW, which is about 10 times of that of N2 and S2. The semidiurnal tidal energy enters mainly to the Bering Sea by Samalga Pass, Amukta Pass and Seguam Pass, accounting more
than 60% of the total energy entering the Being Sea from the Pacific. 相似文献
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船舶柴油机主动力装置总能系统能质分析 总被引:1,自引:0,他引:1
船舶柴油机主推进动力装置的能源是燃料燃烧产生的热能,这些热能中除部分经柴油机动力系统转换为机械功能作为主推进动力外,其排气和冷却水余热往往经过废气锅炉和制冷装置回收利用。图1为某700TEU集装箱柴油机船舶主动力装置热力系统图。这是一种典型的大功率柴油机船舶主动力 相似文献
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Wave energy assessments in the Black Sea 总被引:1,自引:0,他引:1
Eugen Rusu 《Journal of Marine Science and Technology》2009,14(3):359-372
The present work aims to evaluate the wave energy resources in the Black Sea basin. The study is focused on the western part
of the sea, which is traditionally considered as being more energetic. In order to give a first perspective of the wave climate,
a medium-term wave analysis was carried out using in situ measured data. As a further step, a wave prediction system was implemented
for the Black Sea. This was based on the simulating waves near-shore model, which is used for both wave generation and near-shore
transformation. This methodology has the advantage that a single model covers the full scale of the modelling process. Various
tests were performed considering data measured at three different locations. Special attention was paid to the whitecapping
process, which is still widely considered to be the weak link in deep water wave modelling. Comparisons carried out against
measured data show that the wave prediction system generally provides reliable results, especially in terms of significant
wave heights and mean periods. By increasing the resolution in geographical space, the field distributions of wave energy
were analysed for both high and average wave conditions. The analysis and the wave prediction system developed are a prerequisite
for further investigations extended in time and with increased resolution in the near-shore direction. 相似文献
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关注能源运输 共享蓝色海洋 总被引:1,自引:0,他引:1
随着全球石油需求量的不断增长,海上石油运输量也在不断增长。油轮重特大污染事故的接连发生,给海洋环境和生态资源造成极大破坏,给社会造成重大经济损失。"海洋污染"尤其是"海上石油运输对海洋环境的损害"已成为海上运输继"人命安全"之后又一个社会关注的焦点问题。 相似文献
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节能住宅,是高效低耗、健康舒适的高质量居住建筑,属于可持续发展建筑的一种。本文从建筑环境的营造和建筑主体节能措施两个方面进行阐述,主要从外墙外保温、屋顶保温、门窗保温来说明建筑主体节能的措施。 相似文献
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努力降低水上交通安全管理的执法成本,是海事执法部门在实际工作中切实坚持和落实科学发展观的基本要求。文中从海事管理的角度出发,针对海事巡逻船舶在正常执法过程中如何节能降耗,提出了一些方法和建议。 相似文献