10000 m~3丁烷球罐施工质量控制措施

以10 000 m~3丁烷球罐监造实践为例,列出了该大型球罐在施工过程中存在的球罐球壳板组装、焊接和无损检测等方面的难点。为了解决上述难点,在球罐施工过程中采取了一系列的相应质量控制措施。施工现场的应用与实践证明,采用该系列质量控制措施可以有效解决球罐在施工过程中存在的上述难点,说明该质量控制措施可以为相关大型球罐施工提供参考。     

太阳能道路在智慧交通中的应用前景分析

本文简述了国内外太阳能道路的研究现状,对太阳能道路的机理进行简要概括,初步探讨了太阳能道路功能特点,并分析太阳能道路的路用性能,展望太阳能道路在我国建设智慧交通中的应用前景。     

太阳能光伏技术在高速公路中的应用探讨

文章通过在郑州石人山高速公路监控系统设计中应用太阳能光伏技术的工程实例,介绍太阳能光伏发电的特点和太阳能光伏系统的计算方法,并对其成本及存在问题做简要的分析,探讨太阳能光伏技术在公路建设领域的应用前景。     

太阳能光伏发电技术在交通运输业的应用

分析了我国太阳能光伏发电技术的现状及其价格趋势,基于太阳能光伏发电技术的特点,详细分析了其在交通运输领域应用的巨大潜力。     

基于有限元法的4000 m3丙烷球罐力学特性分析

通过有限元方法对4000m~3丙烷球罐进行力学特性研究,重点分析了球罐整体结构在不同工况下的整体受力情况,并通过应力分类和强度评定,对危险部位进行强度校核。与常规设计方法对比,基于有限元法的球罐整体受力分析,能够得到更全面的球罐应力分布,并通过应力评定,对薄弱点进行了更详细的分析。     

太阳能汽车研究现状及未来技术路线展望

本文简要介绍了太阳能汽车的技术特点及其发展概要,同时对国内太阳能汽车的开发现状进行了详尽阐述,并据此对其未来的技术发展路线进行了重点研究。考虑到化石燃料的日渐稀缺及生态环境的日益恶化,太阳能汽车以其清洁、环保的卓越优势,依然有着较好的应用前景。     

珠海LPG二期扩建工程反井钻施工技术

反井钻施工常运用在长大隧道、地下煤矿、矿山的排风洞、水库大坝的导流洞以及地下石油、液化气储库的产品进出通道。本文主要阐述珠海液化石油气LPG(LiquefiedPetroleumGas)二期扩建工程中主竖井及产品井反井钻施工技术。     

环保型管道和储罐重防腐蚀涂料

随着全球范围的环境保护需要,限制使用溶剂型涂料已是大势所趋势,研究开发环保型防腐蚀涂料是国际涂料的重要方向。在多年对管道和储罐防腐蚀涂料研究开发和应用的基础上,我们研制了多种环保型重腐蚀涂料,包括环氧粉末防腐涂料,无溶剂防腐蚀涂料,水溶性防腐蚀涂料等,关在实际工程中得到成功应用。     

钢质管道及储罐内防腐涂料应用研究

指出了胜利油田集输系统钢质管道、储罐腐蚀严重性，阐述了多种环氧型内防腐涂料的特点、应用效果及涂料内防腐尚待解决的问题。     

广州市离网分布式太阳能候车亭示范工程及应用

太阳能具有来源直接、工期短、见效快、无污染等优点。建设太阳能候车亭是一个解决供电、布线的很好方法,而且太阳能供电具有稳定、长效、无污染的特点。广州市公用公交站场管理服务中心结合本单位工作,开展了将太阳能技术引入候车亭试点建设工作,为探索低碳可持续发展做出有益的尝试。目前,离网分布式太阳能公交候车亭建设项目已完成天河区、海珠区、白云区共16座太阳能候车亭的建设工作,预计年节省用电量为2.62万度电。太阳能候车亭不仅具有公益广告原有的宣传作用,还点亮了都市、小区的夜景生活。在不需开挖电线,电缆的同时为我们的大都市添加了一处别样的风景,更是低碳交通、环保交通的必由之路。     

Evaluation of alternative battery technologies for a solar assist plug-in hybrid electric tractor

This paper looks at the various battery technologies available for use in solar assist plug-in hybrid electric tractors In this context, solar assist plug-in hybrid electric tractors are those that may be used in light-duty agricultural operations. To determine the most suitable battery, four common technologies are analyzed looking at the environmental life-cycle effects and costs.     

About the possibilities of using the renewable energy power sources on railway transport

Several electrification systems based on renewable energy power sources (first of all, solar energy) are discussed in respect to their applicability to railway transport and, in particular, to suburban electric trains. Two systems are considered with basic technical details and economic estimation, both including the onboard bank of batteries and the photovoltaic converters (PVC) of solar energy for compensation of energy expenses, which could be positioned either on stations or on wagon's roofs. Sun‐tracking systems and their effect on the solar energy conversion efficiency are discussed in application to stationary and moving PVC platforms. An analysis made shows that introduction of the “green” systems discussed will not only have positive ecological impact, but also can bring a notable economical effect even with today's components, while it could be considerably greater with the usage of new PVCs, which are being developed by the authors. Copyright © 2011 John Wiley & Sons, Ltd.     

Reducing CO2 emissions of conventional fuel cars by vehicle photovoltaic roofs

The European Union has adopted a range of policies aiming at reducing greenhouse gas emissions from road transport, including setting binding targets for tailpipe CO₂ emissions for new light-duty fleets. The legislative framework for implementing such targets allows taking into account the CO₂ savings from innovative technologies that cannot be adequately quantified by the standard test cycle CO₂ measurement. This paper presents a methodology to define the average productivity of vehicle-mounted photovoltaic roofs and to quantify the resulting CO₂ benefits for conventional combustion engine-powered passenger cars in the European Union. The method relies on the analysis of a large dataset of vehicles activity data, i.e. urban driving patterns acquired with GPS systems, combined with an assessment of the shading effect from physical obstacles and indoor parking. The results show that on average the vehicle photovoltaic roof receives 58% of the available solar radiation in real-world conditions, making it possible to reduce CO₂ emissions from passenger cars in a range from 1% to 3%, assuming a storage capacity of 20% of the 12 V battery dedicated to solar energy. This methodology can be applied to other vehicles types, such as light and heavy-duty, as well as to different powertrain configurations, such as hybrid and full electric.     

超级电容器对航标能源发展的影响

能源是社会和经济发展的重要物质基础,也是提升人们生活水平的先决条件。作为保障助航标志正常工作的重要动力,航标能源经历了从非电能源到电能能源的历史性演变。目前,航标能源的供电方式主要是太阳能电池+蓄电池的模式,但是太阳能电池板也存在着发电效率低,受气候环境因素影响大等诸多问题。     

管道输送“间歇流”对带压开孔封堵的影响

文中介绍了轮一联合站改造的必要性和目的,介绍了该站的生产现状。简述了整改方案,重点介绍了开孔封堵设备的选用,具有一定的借鉴作用。     

释能法与增大截面法在桥梁加固工程中的应用

文章以贵州省三沙大桥为例,对双曲拱桥病害进行了综合分析,介绍了＂释能法＂与增大截面相结合的方法在双曲拱桥加固改造中的应用,并通过计算分析,证明了＂释能法＂与增大截面相结合的方法对提高双曲拱桥承载力是完全可行的。     

桥面防水层施工技术探讨

主要介绍了徽杭高速公路用FYT桥面防水涂料作为桥面防水层的施工工艺,及在施工中遇到的问题和处理方法,并对其它类型的桥面防水层作了简要介绍。     

百色市澄碧大桥主拱圈施工质量控制

文章以百色市澄碧大桥工程为例,探讨桥梁主拱圈施工方案和预拱度设计方法,并从拱架搭设、拱圈底模安装、拱架预压及拱架卸落等施工环节介绍了大桥主拱圈施工的质量控制措施。     

隧道围岩体内位移监测分析

隧道围岩体内位移监测结论对于判断围岩稳定性和保证施工安全与工程质量起着重要的作用。文章以一高速公路隧道为依托,介绍了围岩体内位移测量设备和工作原理,并通过对其围岩体内位移检测数据的分析,提出了隧道围岩体内位移监测的注意事项。