张掖地区含水沙土比汽化热的简单分析  

Brief Analysis of Specific Vaporization Heat of the Watery Sandy Soil in Zhangye

作　　者：董光兴[1] 孙桂华[1] 何海涛 王新兴[1] 葛素红[1] Dong Guang-xing;Sun Gui-hua;He Hai-tao;Wang Xin-xin;g Ge Su-hong(College of Physics and Electromechanicta Engineering,Hexi University,Zhangye Gansu 73400)

机构地区：[1]河西学院物理与机电工程学院,甘肃张掖734000

出　　处：《河西学院学报》2018年第5期1-4,共4页Journal of Hexi University

摘　　要：本文基于比汽化热实验原理研究了张掖地区96℃条件下不同浓度的沙土溶液比汽化热与其浓度的关系.研究发现含沙量在1%～19.4%范围内沙土溶液比汽化热随着溶液浓度的增大而减小.在19.4%～26%范围内比汽化热随着溶液浓度的增大而增大.根据实验数据拟合关系推断,在含沙量大于26%浓度范围比汽化热亦然随着溶液浓度的增大而增大.可以认为:在其他条件相同的情况下,地表水含沙量较小时,含沙量的增加会增加年蒸发量,加速区域地区干旱;当含沙量较大时,含沙能力又起着保墒含水的作用.Based on the experimental principle of specific vaporization heat, the relationship between the specific vaporization heatand the concentration of sand solution at different concentrations at 96℃ in Zhangye ar- ea was studied. It was found that the specific vaporization heat of the sand content in the range of 1% to 19.4% will become lower with the increase of the concentration of solution, and that of the sand concentration ranging- froml% to 19.4% will increase with the increase of the concentration of the solution. According to the experimen- tal data, it is inferred when the sand content is higher than 26%, the specific vaporization heat also increases with the increase of the solution concentration. It can be considered that when the other conditions are the same, when the sediment concentration of the surface water is low, the increase of the sediment concentration will in- crease the annual evaporation and accelerate the drought in the regional area, but when the sediment concentra- tion is high, the sand-bearing capacity plays a role in protecting the water.

关 键 词：沙土溶液 混合法 比汽化热 

分 类 号：O551.1[理学—热学与物质分子运动论]