三地湿球温度计算值与实测值的比较分析

Comparison and Analysis on Calculation and Observed Value of Wet-bulb Temperature

电厂冷却塔热力计算所需的气象参数包括近5年最炎热3个月累积频率为10%的日平均湿球温度及其相应的气象要素。近年,随着自动气象站的陆续投入使用,湿球温度一般不再作为常规气象观测项目。因此,冷却塔热力计算所需的湿球温度由实测获取变为了计算获取。湿球温度的计算值和实测值究竟有多大差别,能否满足设计精度要求,成为需要回答的问题。本文选用了南北三个地区的气象站资料,针对湿球温度的计算值和实测值进行了比较和误差分析,提出了应注意的问题。

Some meteorological parameters are needed for power project cooling tower thermodynamic calculation.which are cumulative frequency 10% average daily wet-bulb temperature in hot season of recent 5 years and its corresponding meteorological factors.But now there is no wet-bulb temperature observation at meteorological station because of automatic observation station.So we should gain wet-bulb temperature through calculation instead of observation.There are some problems should be answered what＇s the difference between wet-bulb temperature calculation with observation and is it fit for design.This paper does comparison and error analysis on calculation and observed Value of wet-bulb temperature of three regions,and propounds what are we should be attentive.