共查询到18条相似文献,搜索用时 78 毫秒
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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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近年来吸收,吸附式热泵循环系统的研究与开发 总被引:2,自引:0,他引:2
本文综述了吸收、吸附式热泵循环理论、分类、工作原理以及描述热泵系统性能的参数。介绍了近年来吸收、吸附式热泵工质对的研究进展和新近开发出的热泵循环系统。 相似文献
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介绍了热载体熔盐的组成和性能,分析了熔盐加热炉的结构和燃烧,并对炉管内熔盐过热的原因进行了研究,探讨了炉体结构设计的准则和防止熔盐过热的方法,最后给出了因熔盐过热造成炉管损坏的修复方法. 相似文献
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Dai Feng(Membrane Material Div.of Sinoma Science & Technology, Nanjing 211106) 相似文献
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通过物理混合方法,在由硝酸钾、硝酸钠、硝酸锂组成的熔盐中加入不同量的氧化石墨烯(GO)、钠化石墨烯(Na-GO)和钾化石墨烯(K-GO),制得3个系列熔盐复合材料,考察功能化石墨烯的含量,氧化、钠化、钾化对熔盐复合材料熔点、热分解温度、热传导率、黏度等物化性质的影响。结果发现在添加量为0.1%~5%范围内,随着功能化石墨烯添加量的增加,熔盐复合材料的熔点先逐渐下降,后下降趋平缓,其中Na-GO对熔盐熔点下降作用最为明显;熔盐复合材料的起始分解温度随着功能化石墨烯添加量的增加而提高。GO、Na-GO和K-GO的加入提高了熔盐复合材料的热传导率,降低了其流动性能。综合考虑各种因素,在熔盐中添加0.5%~1%的Na-GO,所得熔盐复合材料的综合性能较好。 相似文献
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稀土熔盐电解炉筑炉工艺改进 总被引:1,自引:0,他引:1
通过选用新型筑炉材料、改进筑炉工艺,从而使电解炉的密闭性和保温性能大幅提升,电解炉寿命由原来的不足3个月提高到12个月以上、单炉月产量由原来的3.6吨提高到4.2吨、单位电耗由原来的9600度/吨下降到8300度/吨、Si、Al杂质含量由原来的300 ppm以上降到现在的100 ppm以下。 相似文献
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石墨炉原子吸收直接进样测定酒中铅 总被引:1,自引:0,他引:1
研究了不经过消解处理,通过加入不同基体改进剂直接进样测定酒中铅;比较了经过消解后和直接进样经石墨炉原子吸收测定结果的影响。对不同类型的酒进行精密度实验,RSD 1.38%~3.16%,回收率为85.90%~109.63%,表明了此方法可以适用于日常检测需要,方便、简单、更易操作。 相似文献
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熔盐法制备λ-MnO_2及其超级电容性能 总被引:6,自引:0,他引:6
在600℃的m(NaC l)∶m(L iC l)=1∶3的熔盐体系中,将KMnO4反应5 h制备了MnO2。X射线衍射分析其结构表明,所制样品为λ-MnO2;扫描电镜对其形貌研究表明,样品为微米级片状结构。按m(MnO2)∶m(石墨)∶m(乙炔黑)∶m(羧甲基纤维素)∶m(聚四氟乙烯)=75∶10∶10∶3∶2制备电极材料,在电解液为c〔(NH4)2SO4〕=2mol/L的三电极体系中,通过循环伏安、交流阻抗和恒流充放电对其超级电容性能进行了考察。不同扫速循环伏安曲线表明,该材料具有典型的超级电容特性;交流阻抗测试结果表明,溶液电阻RL为0.69Ω,电极电阻RE为2.5Ω;用恒流充放电测得在1 mA恒流充放电条件下,放电比容量可达306.92 F.g-1。经5 mA恒电流循环100次,充放电效率接近100%。 相似文献
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C. N. Kenney 《Catalysis Reviews》1975,11(1):197-224
Molten salts have been used for many centuries in metal extraction, glass manufacture, and, more recently, in applications such as fused salt electrolysis. Usually dissociated into ions, they are often good solvents for oxides, carbides, nitrides, and metals. Their high thermal stability, low vapor pressure, good thermal and electrical conductivity, and low viscosity may be expected to confer on them an increasing technological importance in the future, and as a result research on their physical and chemical properties has grown markedly in recent years. Thermodynamic and transport properties [l-41 have been surveyed within the last decade, and Sundermeyer [5] has also reviewed their use as reaction media. A selection of catalytic reactions has been discussed by Kenney [6]. 相似文献
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C. N. Kenney 《Catalysis Reviews》2013,55(1):197-224
Molten salts have been used for many centuries in metal extraction, glass manufacture, and, more recently, in applications such as fused salt electrolysis. Usually dissociated into ions, they are often good solvents for oxides, carbides, nitrides, and metals. Their high thermal stability, low vapor pressure, good thermal and electrical conductivity, and low viscosity may be expected to confer on them an increasing technological importance in the future, and as a result research on their physical and chemical properties has grown markedly in recent years. Thermodynamic and transport properties [l-41 have been surveyed within the last decade, and Sundermeyer [5] has also reviewed their use as reaction media. A selection of catalytic reactions has been discussed by Kenney [6]. 相似文献