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Recent content by asv80

  1. asv80

    What is the unit "pt/min" ?

    Is it pint per minute? 1 pint = 0.125 gallon
  2. asv80

    WRC 107 - nozzle loads

    ukinam, the nozzles will be on a vessel that is horizontally mounted. Per the customer, seismic loads are applicable only for vertically mounted units. I asked another person here and he too says that seismic analysis will not be required for horizontal cases. Also, Compress too seems do the...
  3. asv80

    WRC 107 - nozzle loads

    The reason given for not including seismic load was horizontal installation. Is that correct? Also, what we did was tell them that individual loads are okay and gave them the maximum total forces and moments the design will withstand. Thanks.
  4. asv80

    WRC 107 - nozzle loads

    We were told by our customer that the seismic load need not be combined with the weight and thermal. With this condition, we do not get very high stresses. Tom: If you still have the excel file, it would be very useful. It was a new learing for us and thanks for all your help.
  5. asv80

    WRC 107 - nozzle loads

    Tom, We were provided a table of nozzle sizes and the values of VL, Vc, ML, and Mt for three conditions - weight, seismic, and thermal. Other values are not provided and we take those forces/moments are not present. When we supply values to compress we input all the values for one type of load...
  6. asv80

    WRC 107 - nozzle loads

    Thank you everyone for the suggestions. I also went over some of the previus threads in the forum. We do not have capabilities to do FEA for this. From the compress values for various loads, the bending moment seems to have more influence on the stress values. We are checking if that value can...
  7. asv80

    WRC 107 - nozzle loads

    I looked through some of the past threads and I think all the loads need to be applied simultaneously. However, we find some unreasonable stress values. The options we tried were having heavier wall pipe for the nozzle and the attached shell and also reinforcing pads. These do not seem to have...
  8. asv80

    WRC 107 - nozzle loads

    This is totally new to me and I would request your advice. We have been provided the allowable forces and moments for weight, seismic and thermal loads for different nozzles and asked to design the nozzles to withstand them. When entering the values for forces and moments in WRC 107...
  9. asv80

    SS 304 / Glycol corrosion resistance

    What happened to my previous post!? Anyway, thanks guys. We are going to check the glycol system.
  10. asv80

    SS 304 / Glycol corrosion resistance

    The system is 25% glycol and 75% fresh water and it being heated to about 190 deg F. The split in the tube looks like a stress corrosion crack.
  11. asv80

    SS 304 / Glycol corrosion resistance

    Does SS 304 have good corrosion resistant in glycol service? The references I checked say they do, but we have an instance where SS 304 glycol heater has split tubes in less than 3 months service and also shows signs pf pitting. Has anyone seen this type of attack before? Thanks in advace.
  12. asv80

    ASPEN B-Jac

    If you check the outlet temperatures in the 2 modes, they would be different. In simulation mode, BJAC tries to adjust the outlet temperature that will use up all the surface area available.
  13. asv80

    Vacuum Breaker

    Thanks for the good point Yorkman. We are going to installing a vacuum breaker and air vent connections on the shell.
  14. asv80

    Vacuum Breaker

    Thanks Yorkman. That is the primary reason we were suggesting its use.
  15. asv80

    Vacuum Breaker

    Are vacuum breakers required according to any code for a heat exchanger condensing steam in the shell side? We want to install a vacuum breaker as it would protect the shell, however others say there is no requirements per code and hence not needed. Thanks in advance. Excuse for posting in...
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