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Flow distribution among parallel heated channels
Author(s) -
Gruber Alan R.,
Hyman Seymour C.
Publication year - 1956
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690020214
Subject(s) - heat exchanger , mechanics , coolant , inlet , supercritical fluid , boiler (water heating) , flow (mathematics) , body orifice , nuclear engineering , thermodynamics , materials science , mechanical engineering , engineering , physics
The coolant flow distribution among parallel tubes in a nuclear reactor (or boiler or heat exchanger) can be very sensitive to variations in heat input, dimensions, etc. Analytical expressions are given for partial derivatives which measure flow variations for several situations. The utility of orifices and valves in reducing flow sensitivity is discussed. Numerical results are reported for a system using water at supercritical pressurs with an eightfold expansion from inlet to outlet.