评《对〈“干盘管”误解剖析〉一文中4个问题的探讨》
Comment on Discussion on four aspects of Misunderstanding analysis of “dry coil”
摘要：
指出：“干盘管”的目的就是使风机盘管的冷凝水盘中没有水；笔者实验的目的就是确定实现“干盘管”运行的进水临界温度；将盘管的干湿工况理论简单地应用于“干盘管”导致了一系列误解的产生；如何计算“干盘管”非标准工况下的冷量需要进一步深入研究；在舒适性独立新风系统中采用新风再热是不合理的，且完全没有必要；“干盘管”防止冷凝水产生的控制措施是一项成熟的、早已商业化的技术。仅仅为了风机盘管冷凝水盘里不出现冷凝水，从而保持较好的室内空气质量，不应采用经济性很差的“干盘管”技术，很多技术都可以较低成本达到同样的效果。
Abstract：
Points out that the intention of using “dry coils” is to let no water condensed from the fan coil unit (FCU); that the experiment performed by the author is aimed at determination of the critical inlet water temperature of the “dry coil”; that careless use of the wet-dry condition theory of the coil in the “dry coil” have lead to a series of misunderstanding; that further study is needed of the cooling capability calculation of“dry coils”; that outdoor air reheating in comfortable DOAS is unreasonable and unnecessary; and that the control method of avoiding condensation in “dry coil” is already a well-commercialised technique. The “dry coil” technique should not be used for merely keeping the condensed drain pan dry and the indoor air quality better because of its poor cost-effectiveness while there are many other cheaper and effective approaches available.
Keywords:“drycoil”,FCU,DOAS,coilsurfacemeantemperature