二、夏季外气计算参数的选择如前所述,选择夏季外气计算参数时,必须考虑一系列的综合因素,其中最重要的是外气溫度和温度、太阳辐射强度以及它们的变化波动情况。在某些条件下,例如计算换气量的热负荷时,可用外气焓值代替温、 Second, the choice of summer outside air parameters As mentioned above, the choice of summer outside air parameters, we must consider a series of integrated factors, of which the most important is the outside air temperature and temperature, solar radiation intensity and their fluctuations in the situation . Under certain conditions, such as calculating the heat load of the ventilation, the enthalpy of outside air may be used instead of the temperature,