Mechanism of Action of LiBr on Characteristics of NH<sub>3</sub>-H<sub>2</sub>O-LiBr Ternary Solution

何树青; 吴铁晖; 吴裕远; 王晶; 吴红林

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Mechanism of Action of LiBr on Characteristics of NH₃-H₂O-LiBr Ternary Solution

更新时间：2025-12-08

- Mechanism of Action of LiBr on Characteristics of NH₃-H₂O-LiBr Ternary Solution
- Vol. 42, Issue 7, Pages: 848-851(2008)
- 作者机构：
  
  西安交通大学能源与动力工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TB651
- Online First：10 July 2008，
  
  Published：2008
- 稿件说明：
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何树青, 吴铁晖, 吴裕远, et al. Mechanism of Action of LiBr on Characteristics of NH₃-H₂O-LiBr Ternary Solution[J]. 2008, 42(7): 848-851.
DOI：

何树青, 吴铁晖, 吴裕远, et al. Mechanism of Action of LiBr on Characteristics of NH₃-H₂O-LiBr Ternary Solution[J]. 2008, 42(7): 848-851. DOI：

摘要

针对目前吸收式制冷领域中研究的NH

-H

O-LiBr三元溶液混合工质

采用溶剂化作用模型和电解质NRTL方程

研究了溴化锂(LiBr)对溶液组成的影响. 结果表明:随着LiBr初始摩尔分数的升高

水的溶剂化系数m先升高

后略有降低

氨的溶济化系数n始终呈下降趋势

并且在350 K、LiBr的初始摩尔分数大于0.03时m>n

离子溶剂化作用形成的离子簇包含的水分子多于氨分子; 溶剂化作用后水的含量高于作用前的

但前后差值随LiBr初始摩尔分数升高而减小; 随着温度的升高

m降低

n升高

离子吸引水分子的能力减弱而吸引氨分子的能力升高; 完全电离的溶剂化模型只在LiBr的初始摩尔分数小于0.1时得到较好的结果

在LiBr的初始摩尔分数大于0.1时与部分电离模型产生较大的误差.

Abstract

A solvation model and electrolyte NRTL equation were used to study the mechanism of the action of LiBr on the thermal equilibrium characteristics of NH

-H

O-LiB in an absorption refrigeration system. The results show that the solvation number m

water molecules arrested in ionic clusters

increases with the increases of the original mole concentration of LiBr and then decreases slightly when the mole concentration is higher than 0.13. The solvation number n

ammonia molecules arrested in ionic clusters

decreases in the whole range. Moreover

m>n when the mole concentration is greater than 0.03. In addition

the mole concentration of water after salv

ation is also higher than that before solvation

but their value difference decreases significantly with the increase of the original mole concentration of LiBr. Large difference between the results obtained by the completely ionization solvation model and the partial ionization one occurs when the original concentration of LiBr surpassed 0.1.

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references

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Mechanism of Action of LiBr on Characteristics of NH3-H2O-LiBr Ternary Solution

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摘要

Abstract

关键词

Keywords

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Mechanism of Action of LiBr on Characteristics of NH₃-H₂O-LiBr Ternary Solution