HTRI设计中的RPM

大候无及

管壳式冷凝器设计中 ，method中有RPM、Literature、CPM、Ammonia-Water等选项，他们分别是数目意思？选取的原则是什么？谢谢各位指教！

carlee

帮顶，坐等高手解答。。。。

liuyu1029

ASME 中国制造就是好！！！

jolin

是物性的确定方法吗？

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Literature
= uncorrected Ward-Silver-Bell proration method
Included for comparison with other methods, it is not recommended.

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CPM
=developed for hydrocarbon condensation in the presence of inerts
Currently, the Resistance Proration method with specified inert fraction is recommended for this type of case. Values produced by this method are too low, according to research data.

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Ammonia-Water
=Modification of CPM method for ammonia-water mixtures only. Do not use this method with other mixtures
=

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REFLUX
= used for vertical intube reflux condensation
Vapor enters at bottom. Liquid condenses on tube wall and drains out the bottom. Proper use of this method requires specific exchanger geometry and special input considerations.

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Rose-Briggs
provides improved accuracy for shellside condensation on low-finned tubes
HTRI Report CS-11 contains a description of this method.

wdyou

看帮助呗，那里面讲的很详细