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摘要
针对太阳能导热介质使用中的挥发损失问题，分析了挥发损失来源和气相挥发物组成，并对乙二醇浓度、温度和时间等气相挥发物的影响因素进行了分析。结果表明，乙二醇浓度增加、温度升高和时间延长都会增加导热介质的挥发损失。基于分析结果，对导热介质的合理补加提出了建议。
Abstract
To solve the volatilization loss problem of solar heat-conducting medium during the service,the source of volatilization loss and the composition of gas-phase volatile matters are analyzed,and the factors affecting the gas-phase volatile matters,such as ethylene glycol concentration,temperature and time are analyzed.It is shown that the increase of ethylene glycol concentration,temperature increase and time extension each will increase the volatilization loss of heat-conducting medium.Based on the results,suggestions for the reasonable addition of the heat-conducting medium are proposed.
关键词
太阳能导热介质
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时间
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温度
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乙二醇浓度
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挥发损失
Key words
solar heat-conducting medium
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time
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temperature
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ethylene glycol concentration
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volatilization loss
太阳能导热介质挥发损失分析[J].
现代化工, 2019, 39(S1): 184-186 DOI:10.16606/j.cnki.issn0253-4320.2019.S.042
