非标准工况下风机盘管及柜式空调箱选型计算的分析

Type Selections and Calculation of Fan Coil System And Chest-type Air-conditioning Case

常用中央空调风机盘管、柜式空调箱的选型 ,是在室内干球温度 2 7℃ ,相对湿度 5 0 %的工况下 ,按照空调设备制造厂家所提供的产品性能表进行 .当室温要求达到 2 2℃左右时 ,原方法不再适合 .本文用设备的全冷量焓效率和显冷量效率方法 ,对上述变工况情况下风机盘管、柜式空调箱的选型进行了分析 。

Generally the type selection of fan coil system and chest-type air-conditioning case of central station air-conditioning are, according to the product performance list provided by common facility plants of air-conditioning, accomplished in working condition of the room temperature at 27 ℃ with dry-ball thermometer and 50 percent relation humidity. But this method is not appropriate for the case that the room temperature required is 22 ℃ or so. In this paper, the type selections of fan coil system and chest-type air-conditioning casein the latter working condition are analyzed and calculated by applying the enthalpy efficiency of total cooling capacity and efficiency of sensible cooling capacity in facilities.