组合式空调机组供冷量测量的不确定度评定

Uncertainty evaluation of cooling capacity measurement of modular air handling units

介绍了空调机组供冷量的测试方法。并在对某机组供冷量实测的基础上,详细分析了水侧及空气侧供冷量测量的不确定度及其主要来源。结果表明,供冷量测量不确定度的主要因素是进出风干、湿球温度和进出水温度及水流量。

Presents the test methods of cooling capacity of the air handling units.Based on the cooling capacity measurement of an actual unit,analyses the uncertainty and main sources in detail.As a result,the uncertainty of cooling capacity measurement results mainly from the dry-bulb and wet-bulb temperature of entering and leaving air,temperature of entering and leaving water and water flow rate.