添加剂浓度对溴化锂溶液池核沸腾换热的影响

发布时间：2018-02-25 16:21

本文关键词： 添加剂溴化锂溶液表面张力池核沸腾　出处：《河南科技大学学报(自然科学版)》2016年06期 　论文类型：期刊论文

【摘要】：以Triton X-100为添加剂,研究了添加剂浓度对质量分数分别为10%、20%和30%的溴化锂溶液池核沸腾换热的影响。测量结果表明:该添加剂能显著降低溴化锂溶液的表面张力。受盐析效应的影响,溴化锂质量分数越高,添加剂的临界胶束浓度(CMC)越低。该添加剂可以强化溴化锂溶液的沸腾换热,最佳强化换热点约在CMC处。随着溴化锂质量分数的提升,强化换热效果逐渐减弱。该添加剂对溶液沸腾温度的影响比较小。
[Abstract]:Using Triton X-100 as additive, The effect of additive concentration on the boiling heat transfer of lithium bromide solution with 10% and 30% mass fraction of lithium bromide solution was studied. The results show that the additive can significantly reduce the surface tension of lithium bromide solution, which is affected by salting out effect. The higher the mass fraction of lithium bromide is, the lower the critical micelle concentration of the additive is. The additive can enhance the boiling heat transfer of lithium bromide solution. The best enhancement hot spot is about CMC. The effect of the additive on the boiling temperature of the solution is relatively small.
【作者单位】：江苏大学能源与动力工程学院;
【基金】：国家自然科学基金项目(11102073) 江苏省博士后基金项目(1501126B) 江苏省普通高校省助研究生创新基金项目(SJZZ_0134)
【分类号】：TK124

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