准确测定空气-流体热交换器的容量需要准确测量进出气流的温度和湿度。确定平均条件的最可靠方法是，首先彻底混合进出气流，然后使用空气取样装置从多个位置取样。公开文献中的可用研究集中在圆形管道系统的混合器上，对于常用的方形管道系统和空气采样器，可用的指南非常有限。ASHRAE RP-1733将提供最新的混合器设计指南，适用于常用的方形管道系统，以及使用传统采样机制或RTD网格和湿度采样管组合（连接到冷却镜湿度计）进行空气采样的混合器。 本演示将更新RP-1733中搅拌机评估的最新进展。引文:2020年虚拟会议扩展摘要论文

Accurate determination of air-to-fluid heat exchangers’ capacity requires accurate measurement of the entering and leaving airstreams’ temperature and humidity. The most reliable approach to determine average conditions is to first thoroughly mix incoming and leaving airstream and then sample air from numerous locations using an air sampling apparatus. Available research in open literature is focused on mixers for round ductwork with only very limited guidelines available for commonly utilized square ductwork and air samplers.ASHRAE RP-1733 will provide updated design guidelines for mixers as applied to commonly used square ductwork as well as for air sampling using traditional sampling mechanisms or a combination of RTD grid and humidity sampling tubes connected to a chilled mirror hygrometer. This presentation will provide an update on current progress of mixer evaluation as part of RP-1733.