6.4.1   Length of U-tubes

 

 

Number of U-tubes = 934 (as calculated previously)

The tubes are 19.05 mm outside diameter so the surface area per metre length is
π х 0.01905 = 0.06 m2/m

Average U-tube length between tubeplates

= 14507(0.06 x 934) = 25.9 m

Average tube bundle length = 12.94 m, which determines the shell length.

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