基于分段函数法计算湿球温度研究

核电厂冷却塔设计气象条件中,湿球温度是重要的设计气象参数之一。近年来,由于实行自动观测,相对湿度值由仪器自动测定,因此不少气象站已经停止了湿球温度的观测,这给电厂气象参数的分析计算造成了一定困难。为此,根据气压分布型特点和分段函数,提出利用干球温度和相对湿度来计算湿球温度的新方法,经河南省郑州、南阳和商丘3站的应用,效果良好。

Study on the Wet Bulb Temperature Estimation Using Piecewise Function

Wet bulb temperature is one of the important meteorological parameters for designing nu-clear power plant cooling tower. In recent years,because of the implementation of automatic observation, relative humidity values automatically determined by the instrument,so many meteorological stations stopped the observations of the wet bulb temperature,which caused some difficulties for the analysis of the power plant meteorological parameters calculation. Therefore,basing on the characteristics of pressure distribution and piecewise function,the new method which calculated the wet bulb temperature only ac-cording to the dry bulb temperature and relative humidity was applied in Zhengzhou,Nanyang and Shan-gqiu meteorological stations of Henan province which proved good effects.