共查询到19条相似文献,搜索用时 156 毫秒
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魏娜娜 《建筑玻璃与工业玻璃》2010,(6):34-34
位于美国加州山景城(Mountain View,Calif.)的Solfocos公司,已经完成了太阳能反射玻璃在亚利桑那州梅萨(Mesa,Ariz.)地区的生产扩张。凭借超过175%的制造面积空间的增长和一条新的制造生产线,SolFocus玻璃工厂的设施将有能力为30兆瓦的太阳能发电每年生产200万片的集中反射镜,这将是工厂2008年15倍多的生产能力。 相似文献
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太阳能热发电技术对缓解全球资源紧张和改善环境有广阔的应用前景,大规模高温无损储热是太阳能热发电系统的关键。本文通过对显热储能、潜热储能和热化学储能3种热能储存方式的比较,认为热化学储能方法由于储能密度高,且可长期在环境温度下无热损储存,因而为太阳能热发电中的高温热能储存提供了一种潜在的方法。并对热化学储能在太阳能热力发电的应用上进行了技术经济分析,综述了几种有前景的热化学储能体系的研究进展,总结了各种储能体系的现存问题。根据热化学储能方法在实用化过程中存在的技术经济问题,指出了热化学储能技术的未来研究方向是储能反应器的设计、能量储存/释放循环性能探究、储能体系的选择及热化学储能系统的中试放大研究等。 相似文献
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太阳能驱动界面蒸发技术利用太阳光在空气-水界面蒸发获取洁净水,能有效缓解水资源短缺。本文介绍了太阳能界面蒸发器的结构和蒸发原理,概述了太阳能界面蒸发器蒸发性能调控措施,从光热材料的选择、有效的热管理、水路设计、表面润湿性、活化水以及3D结构设计等多方面对光-热-蒸汽性能进行调控,并探讨了太阳能界面蒸发器在海水淡化、废水处理和协同发电等领域的广阔应用前景。 相似文献
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SPAN style="FONT-FAMILY: 宋体 FONT-SIZE: .pt mso-ascii-font-family: Calibri mso-bidi-font-family: 宋体 mso-ansi-language: EN-US mso-fareast-language: ZH-CN mso-bidi-language: AR-SA mso-bidi-font-size: .pt mso-ascii-theme-font: minor-latin mso-fareast-theme-font: minor-fareast">杜春旭 王普 吴玉庭 马重芳 《化工学报》2011,62(Z1):179-184
在聚光太阳能热利用设计时,有必要计算聚光装置倾斜镜面或孔径表面的太阳直接辐射。线性菲涅耳聚光反射装置是对连续抛物面聚光镜的一种离散化近似,该聚光装置中每一行反射镜面(简称镜元)均实时跟踪太阳,故每一镜元的太阳光入射角、跟踪倾角均时刻变化,这便使系统太阳辐射计算变得相对复杂。首先利用矢量分析,得到线性菲涅耳反射装置任一镜元的入射角计算公式,然后计算整个镜场的实时辐射通量,最后得到整个镜场在有效工作期间内的累积辐射量。通过对反射光在吸热器平面的偏移分析,得到线性菲涅耳聚光反射镜场的最佳塔高计算方法。 相似文献
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Lourdes García-Rodríguez Ana I. Palmero-MarreroCarlos Gómez-Camacho 《Desalination》2002,142(2):135-142
This paper deals with a global analysis of the use of solar energy in seawater distillation under Spanish climatic conditions. Static solar technologies as well as one-axis sun tracking were compared. Different temperature ranges of the thermal energy supply required for a desalination process were considered. At each temperature range, suitable solar collectors were compared in some aspects as: (1) fresh water production from a given desalination plant; (2) attainable fresh water production if a heat pump is coupled to the solar desalination system; (3) area of solar collector required for equivalent energy production. Results showed that direct steam generation (DSG) parabolic troughs are a promising technology for solar-assisted seawater desalination. 相似文献
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Yukio Yamauchi Suguru Noda Hiroshi Komiyama 《Chemical Engineering Communications》2013,200(1-2):267-276
Sustainability of human beings in the 21st century requires development of renewable energy systems based on technology innovation. Chemical engineering plays a key role in promoting technology innovation relating to environmental and energy systems. The technological domains to which chemical engineering has contributed have shift from petrochemicals to functional materials and devices. An example of the key devices expected in the future is a combination of solar cells and Li-ion batteries, in which the indispensable materials are silicon and carbon. The shape and nanostructure of materials must be controlled to fabricate highly efficient devices at a low cost. Single-walled carbon nanotubes (SWNT) and spherical silicon solar cells (SSSC) with a semi-concentration reflector system are discussed as examples of future materials and devices. Chemical engineering is responsible for technology innovation through mass production, product quality control, materials recycling, high-quality device fabrication, and structuring knowledge. 相似文献
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分析了熔盐蓄热储能技术,讨论了光热发电中使用的熔盐混合物特性,介绍了采用熔盐蓄热储能技术的太阳能光热发电站的结构和型式。开发了熔盐蓄热储能循环系统的工艺流程,并对熔盐的流量与流速、熔盐膜壁温度、熔盐分解物、熔盐结垢堵塞等问题及其相互之间的关系进行了研究,给出了熔盐管路预热与保温、熔盐贮罐内防固化、惰性气体密封装置和安全保护措施等的设计原则。 相似文献
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Heetae Kim Claudio Tenreiro Tae Kyu Ahn 《Korean Journal of Chemical Engineering》2013,30(10):1882-1888
We suggest a 2D-plot representation combined with life cycle greenhouse gas (GHG) emissions and life cycle cost for various energy conversion technologies. In general, life cycle assessment (LCA) not only analyzes at the use phase of a specific technology, but also covers widely related processes of before and after its use. We use life cycle GHG emissions and life cycle cost (LCC) to compare the energy conversion process for eight resources such as coal, natural gas, nuclear power, hydro power, geothermal power, wind power, solar thermal power, and solar photovoltaic (PV) power based on the reported LCA and LCC data. Among the eight sources, solar PV and nuclear power exhibit the highest and the lowest LCCs, respectively. On the other hand, coal and wind power locate the highest and the lowest life cycle GHG emissions. In addition, we used the 2D plot to show the life cycle performance of GHG emissions and LCCs simultaneously and realized a correlation that life cycle GHG emission is largely inversely proportional to the corresponding LCCs. It means that an expensive energy source with high LCC tends to have low life cycle GHG emissions, or is environmental friendly. For future study, we will measure the technological maturity of the energy sources to determine the direction of the specific technology development based on the 2D plot of LCCs versus life cycle GHG emissions. 相似文献
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作为理想的清洁能源,氢已受到世界各国科学家的广泛重视,采用太阳能制氢已成为发展所趋。本文介绍了两种最有前途的制氢方法:利用太阳能光解水制氢和生物法制氢,总结了其制氢的原理和特点,并对未来的研究趋势做了展望。 相似文献