Flange Calculation Sheets

Fiflure 10.16 Ring flange sample calculation sheet. (Courtesy G+W Toylor-Bonney Div. Taylor Forge.)... 

Example 10.10. What is the minimuin required thickness of a ring flange with the same design data as given in Example 10.9 The inside diameter has been increased to fit over the outside of the shell to where B = 12.75 in. The bolt loadings and bolt size are the same as in Example 10.9. A sample calculation sheet is shown in Figure 10.16. 

Calculation sheets are included for the following types of flange design ... 

The simplest type of shell-and-tube heat exchanger is shown in Eigure 3-1. The essential parts are a shell (1), equipped with two nozzles and having tube sheets (2) at both ends, which also serve as flanges for the attachment of the two channels or beads ( 3) and their respective channel covers (4). The tubes are expanded into both tube sheets and are equipped w nil transverse baffles (5) on the shell side for support. The calculation of the effective heat transfer surface is based on the distance between the inside faces of the tube sheets instead of the overall tube length. 

Specimen SLCOl/02 did not fail after 90/120 min, when experiments were stopped. The noncooled specimen SLC03, however, failed after 57 min. Post-fire inspection showed delamination cracks at the web-flange junctions and local buckling at the compressed upper face sheet and webs (see Figure 7.7). In order to understand the failure mode, the shear stress at the web-flange junction was calculated as follows ... 

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