Help! ! !
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When calculating the stresses in the top and bottom plates of the air cooler tube bank design, the value of φ used for stress verification in the middle section is 1. But why is the stress reduction factor φ for the side plates used in stress verification at the ends set to 0.8? What is the basis for this value of 0.8?
Where can one find relevant literature? The design standards you are following are GB/T150 or ASME VIII-1; here, a value of 0.8 can be chosen for greater conservatism. The standards also allow the use of 1, and in practice, most people use 1 as the standard value
Okay, thank you. I read the book \"Cooling Towers\"; I’m new to this field and don’t know much yet