Relief Capacity of Rupture disc and relief valve

AI Thread Summary
The discussion focuses on calculating the relief capacity of a 10" rupture disc and relief valve set at 180 psig, venting to the atmosphere with water at 140F. Users are experiencing discrepancies in results from different equations, specifically ASME and API, leading to confusion about which to trust. One participant reported a capacity of 10,200 Klb/hr using Crane's equation, while another calculated 2,200 Klb/hr using ASME. The consensus suggests that BPVC standards should take precedence in this scenario. Clarification on the correct equation and capacity computation is sought to resolve the differences.
martane
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I need to compute for the relief capacity (gpm or lb/hr) of a 10" rupture disc with relief valve set at 180psig. Vented out into the atmosphere. Assume fluid is water at 140F. I tried using ASME and API Equation but they give different answers. Can someone tell me the correct answer and what equation to use. Thankd
 
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at 180psig, I would imagine BPVC would take precedence.
 
What was the capacity you computed? Using eq. From crane i computed 10200 Klb/hr from ASME i computed 2200 Klb/hr.
 

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