四种太阳池工质的浓度与折射率和温度的关系

选取可用作太阳池工质的ＮａＣｌ、ＣａＣｌ２、ＭｇＣｌ２和Ｎａ２ＣＯ３四种水溶液，对浓度Ｓ－折射率ｎ－温度Ｔ之间的关系进行测定，利用计算机对实验曲线进行拟合，给出相应的多项式回归方程，获得了较好的结果。它可用于分析、确定上述四种盐水溶液在太阳池内的浓度分布和变化，便于保持太阳池的稳定性。

THE RELATIONSHIPS BETWEEN SALINITY,REFRACTIVE INDEX AND TEMPERATURE OF FOUR AVAILABLE WORKING MATERIALS OF SOLAR PONDS

our ayailable working media of solar pond such as water solutions of NaCl,CaCl2, MgCl2 and Na2CO3 are selected and the relationships between their salinities.refractive indexes and temperatures are systematically measured. The result show that the characteristic curves of salinity S-refractive index n at diffrent temperaturs T and that of temperature T-refractive index n at diffrent salinities are not simply linear as reported by earlier papers. The experimental curves have been dealt with a regression procedure by micro-computer and the representative equations are obtained.The results are quite satisfactory. These curves and equations can be used to analyse and determine the distribution and change of salt salinity in solar ponds so that we can easily keep the stability of the ponds.