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  1. WRH_36

    Code 2843 (ASME BPVC.CC.BPV.S4), transient problem

    Thank you for your response. Yes, Code 2843 is for evaluating creep-fatigue damage in pressure vessels and other components operating under high temperatures. The part in question is a freeze valve that operates at 650°C with a service life of one year and undergoes 300 cooling processes. The...
  2. WRH_36

    Code 2843 (ASME BPVC.CC.BPV.S4), transient problem

    Hello, I performed a thermal and stress analysis in a cooling process and attempted to comply to the code case 2843 (temperature is high). The initial temperature is 650C. It is a transient analysis with 10 time sets from 60s to 600s. I have obtained the thermal stresses at each time set. To...
  3. WRH_36

    Regarding the opening of the flathead following ASME Section VIII Div.1

    Hi Mike, Thank you for your comments. Regards, WRH_36
  4. WRH_36

    Regarding the opening of the flathead following ASME Section VIII Div.1

    I am checking the adequacy of the flathead with a thickness of 1 inch. Please find the attached figure. There are three 4" and multiple 1" openings. I checked the code UG-36 to UG-40 in ASME Section VIII Div.1 and confused some statements. UG-36 (3) (-a) (-1) "finished opening not larger than...
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