What causes pressure drops in pressure vessels

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Pressure drops in pressure vessels, particularly in electric heater applications, are influenced by factors such as fluid viscosity, flow rate, and pipe diameter, as outlined in ASME standards. Understanding pressure drop limitations is essential for design specifications to ensure safety and efficiency. Calculating pressure drops involves principles like the Darcy-Weisbach equation, which accounts for friction losses in pipes. The discussion emphasizes the need for intuitive data input for software development to facilitate accurate calculations. Resources like the Darcy friction factor article can provide foundational knowledge for further exploration of these concepts.
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I am writing a software that involves calculation of pressure drops in a electric heater pressure vessel as in related to pipes and flanges as described in ASME B16.10, B16.47, B36.10.

I am not a mechanical engineer, but in order to create an intuitive data input sequence (and for my interests), I hope to understand why pressure drop limtation is a design specification, what causes the pressure drops and how to calculate it. And whether this pressure drop is a consideration for determination of pipe schedules.

Can anyone explain the theory or point me to the relevant links that shows in an easy to understand manner about the concepts behind the pressure considerations?

Thanks!
 
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Are you asking about pressure drops in the medium a tank is holding?

Or are you asking about how a vessel changes in size with pressure variations? (Hoop stress)
 
Hi Jupiture6,

I am after the pressure drops in the process fluid a pressure vessel is holding as it gets heated up from the inlet to the outlet while in the heater vessel.

Hope I am clear on that. Thanks!
 

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