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  • Users: abcmex
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  1. abcmex

    Design recomendations for steam volume in HRSG

    Dear Sirs, I am trying to review some steam evaporators (HRSG) installed in our plant. Some operators suggest that the systems are prone to carry-over leading to flooding of the steam line. I would ask for some design recomendations (Book references, articles or WWW-pages). There is an earlier...
  2. abcmex

    Design recomendations for steam volume in HRSG

    Dear Sirs, I am trying to review some steam evaporators (HRSG) installed in our plant. Some operators suggest that the systems are prone to carry-over leading to flooding of the steam line. I would ask for some design recomendations (Book references, articles or WWW-pages). There is an earlier...
  3. abcmex

    Freezing fouling design recommendations

    Hello, I am looking for information regarding freezing/ solidification fouling like a published articles (internet) or Books handling this matter. Important would be recommendations and design guidelines. Most of the book have only three to four sentences about this :-((see google books) kind...
  4. abcmex

    Heat tracing calculation

    Dear sirs I would like to ask your help for some published reference about heat tracing calculation for insulated pipelines. I did already some search but I did not found anything I would define as usefull. I started by consulting the Piping handbook (Nayyar et. Al.) but there they describe...
  5. abcmex

    Calculation for Pipe based heat tracing

    Dear sirs I would like to ask your help for some published reference about heat tracing calculation. I did already some search but I did not found anything I would define as usefull. I started by consulting the Piping handbook (Nayyar et. Al.) but there they describe very well the use of a...
  6. abcmex

    Cooling tower capacity @ fan failure

    I would like to know which is the residual cooling capacity of a counter flow cooling tower with high efficiency packing working 100% if the fan fails. a rough estimate (+/- 20%) is enough. Kind regards
  7. abcmex

    NFPA reference related Fire fighting system use for other purposes

    In some companies the use of the fire fighting system for any other purpose than the original is strictly forbidden to avoid misuse. Does NFPA contains any restrictions about this? Kind regards
  8. abcmex

    NFPA reference related Fire fighting system use for other purposes

    In some companies the use of Fire fighting system for any other purpose than the original is strictly forbidden to avoid misuse. Does NFPA contains any restriction about this? Kind regards
  9. abcmex

    COP air cooled evaporator vs. water cooled (incl. CT)

    Do you know any internet reference comparing COP of air cooled chilled water unit vs. water cooled chiller (including the cooling tower pumps/ventilators)? Kind Regards
  10. abcmex

    string test definition

    can someone give me please a good definition of a "string test" I think it should be similar to a performance test. thanks!
  11. abcmex

    Four elbow vs. six elbow expansion loop

    are there any stress related advantaged of using a four elbow expansion loop (on same plane as the main direction) or a six elbow expansion loop (on two planes)? Any other advantages beyond the obvious (arrangement / material consumption)? Kind regards
  12. abcmex

    sensor for control of cooling water temperature

    Does any one have a reference for the control of cooling water temperature (wet bulb/dry bulb temperature sensor). If we use only the dry bulb temperature, we could loss some degrees but, is it really worth? During the summer, when we could need it, we have high humidity so it may be not...
  13. abcmex

    Thermal expansion on long structures like pipe rack

    Which are the typical considerations against thermal expansion of pipe racks? I can imagine that a pipe rack (the structure, not the pipes)would be damaged if there are no design considerations like sliding supports, separation between segments ect. Kind regards
  14. abcmex

    Thermal expansion considerations on pipe racks structures

    Which are the typical considerations against thermal expansion of pipe racks? I can imagine that a pipe rack (the structure, not the pipes)would be damaged if there are no design considerations like sliding supports, separation between segments ect. Kind regards
  15. abcmex

    Thermal expansion on cooling water pipes

    I would like to know the experiences with the design of cooling water pipes on pipe racks specially the effects of thermal expansion. I heard different opinions: "...no need, the pipe operates most of the time at the same temperature." others "...take at least 50 deg C due to...

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