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superheater

superheater

superheater

(OP)
Whit regards to superheater coil design I have two questions
1-    What is the linear velocity of the steam through the tubes of a superheater coil and its relation to the linear velocity of the same steam through the in and outlet collectors.
2-    What are the ratio limits wherein  both velocities should operate in order to assure a  good steam distribution between the superheater coil tubes. The Perry advices a ratio of 10

RE: superheater

For the discussion on sizing headers for equal flow distribution see Thread378-53583, or see articles by RA Bajura, such as Trans ASME V93 series A no. 1 pp7-12 Jan 1971

RE: superheater

(OP)
Thank you davefitz, your advise and data will keep me occupied for a while I suppose now one has a handy spreadsheet on the subject?

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