换热网络HYSYS模型出现 ft correction factor is low问 ...？ 这个应该是由于换热器的壳程数不足出现的警告而已，如下英文所示。 壳程数默认为1，改成2或者高一点就好了。 这个一般是警告，不会造成收敛问题。而且你的模型是收敛的，出现的是警告而已。 problem statement: hysys warns me that my heat exchanger has a "ft correction too low" - what does it mean? solution: the ft factor (lmtd correction factor) is related to the shell & tube configuration (shell/tube passes). as a practical economic consideration, it is seldom that a configuration should be chosen where ft is less than about 0.8. hysys generates a warning if the ft factor for a given heat exchanger is below 0.8. the heat exchanger will be solved/rated anyway (results available), so it is only a warning that this might not be the best configuration. the warning can generally be eliminated when more shells are added to the design.查看更多
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