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我国盐田首次产出南极石 预览 被引量:2
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作者 乜贞 董亚萍 +4 位作者 李武 卜令忠 袁伟 乌志明 张雪飞 《地球学报》 EI CAS CSCD 北大核心 2013年第6期763-766,共4页
南极石是极度干旱且寒冷气候条件下的产物,于1963年在南极首次被发现,并以发现地而被命名为南极石。在我国青海柴达木盆地,也曾有发现南极石的报道。南极石化学式是CaCl2·6H20,可用来生产融雪剂,干燥剂等,具有广泛的用途。... 南极石是极度干旱且寒冷气候条件下的产物,于1963年在南极首次被发现,并以发现地而被命名为南极石。在我国青海柴达木盆地,也曾有发现南极石的报道。南极石化学式是CaCl2·6H20,可用来生产融雪剂,干燥剂等,具有广泛的用途。本文在青海省柴达木盆地西部南翼山地区,利用1940m深处的地下氯化物型富钾油田水进行盐田蒸发试验,于冬季得到了南极石矿物。通过偏光显微镜下鉴定、x光粉晶衍射及化学分析,并参照前人矿物数据,确定为南极石。以前没有关于人工产出南极石的报道,这是首次在野外人工盐田条件下产出南极石,这对认识南极石的自然产出及赋存气候环境条件,对研究地区气候变化,具有重要指示意义。 展开更多
关键词 南极石 地下卤水 盐田试验 青海柴达木 气候环境
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Antarcticite, a Phase Change Material for ThermalEnergy Storage: Experiments and Simulation
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作者 GU Xiaobin NIU Jingjing QIN Shan 《矿物学报》 CAS CSCD 北大核心 2013年第S1期28-28,共1页
Antarcticite, a mineral with composition CaCl2·6H2O and structure P321, is an ideal phase change material (PCM) due to the high energy storage density and good thermal conductivity. However, the existence of sup... Antarcticite, a mineral with composition CaCl2·6H2O and structure P321, is an ideal phase change material (PCM) due to the high energy storage density and good thermal conductivity. However, the existence of supercooling and incongruent melting would weaken its thermal properties and then hinder its application. In this paper, based on the cooling curve method and DSC measurement, we experimentally selected the minor SrCl2·6H2O as the nucleator and carboxyl methyl cellulose as the thickening agent, which could significantly reduce supercooling and partly restrain the incongruent melting. Moreover, we incorporated Antarcticite as PCM into building envelopes in four different cases, the simulation of the heat transfer processes showed that the temperature fluctuation could be reduced to about 2℃ in the best case. 展开更多
关键词 Antarcticite PHASE CHANGE MATERIAL SUPERCOOLING simulation
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