Solubilities and vapor pressures of the lithium bromide plus calcium nitrate plus water system

被引:6
作者
Park, Y [1 ]
Kim, JS [1 ]
Lee, H [1 ]
机构
[1] Korea Adv Inst Sci & Technol, Dept Chem Engn, Taejon 305701, South Korea
关键词
absorption heat pump; calcium nitrate [Ca(NO3)(2); lithium bromide (LiBr); solubility; vapor pressure;
D O I
10.1007/BF02575352
中图分类号
O414.1 [热力学];
学科分类号
摘要
Solubilities and vapor pressures of the lithium bromide + calcium nitrate + water system [LiBr/Ca(NO3)(2) mass ratio = 1.0] were measured in various absorbent (lithium bromide + calcium nitrate) concentration and temperature ranges. Solubilities were measured by a visual polythermal method in the temperature range from 282.55 to 343.45 K and the experimental values were correlated with two least-squares regression equations as a Function of temperature. The average absolute deviation between the experimental and the calculated solubilities was 0.23%. Vapor pressures were measured by the boiling point method in the temperature range from 334.65 to 385.85 K and in the absorbent concentration range from 44.9 to 70.3 mass%. The experimental values were correlated with an Antoine-type equation and the overall average absolute deviation was found to be 1.06%.
引用
收藏
页码:1575 / 1582
页数:8
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