岱海湖温排水对湖面附加蒸发量影响研究

岱海湖为一内陆封闭型湖泊。本研究利用3、7、12月份冬夏工况,综合考虑岱海湖边界条件,水面温度、密度、水面天然温度、大气温度、相对湿度等影响因子,构建温排水对岱海湖附加蒸发量影响的计算公式。经计算,电厂温排水引起的岱海湖附加蒸发损失量为:3月份为39.46万m3,7月份为73.3万m3,12月份为10.6万m3,岱海湖电厂温排水年附加蒸发水量约为678.2万m3/a。结果表明:附加蒸发量与电厂温排水量变化一致。本研究对干旱区水资源利用具有重要意义。

Effect of warm water discharge on addition evaporation of surface of Daihai lake

Daihai Lake is an inland and closed lake,this research used the winter and summer conditions of March, July and December, and comprehensively considered the boundary condition of Daihai lake and impact factors such as water surface temperature, density, natural temperature of water surface,atmospheric temperature, relative humidity to structure the formula about warm water drainage to additional evaporation of Daihai Lake.Through calculation, the additional amount of evaporation loss of Daihai Lake result from warm water drainage of power plant in March is 0.3946 million m³, that in July is 0.733 million m³, that in December is 0.106 million m³.There are about 6.782 million m³ warm water drainage to additional evaporation of Daihai Lake every year. The result shows additional evaporation has consistent change with power plant warm water drainage.The research has important significant for the analysis of amount of evaporation to the use of water resources in dry area.