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  1. abcmex

    Calc to heat exchanger with cast iron head

    Why would you like to use cast iron? I am only curious. a standard dished head is most likely to be cheaper rgs
  2. abcmex

    Premature Failure of Rupture Disc

    dear ak1965, this arrangement is commomly used in the industry. I am tempted to assume there is a design flaw. I recommend you to search for profesional help. The situation could easily get very dangerous. Eng-tips is a great place to search for information but probably not ideal in your case. rgs
  3. abcmex

    Design recomendations for steam volume in HRSG

    Dear RR79, I found some information with similar values as you posted but I am interested in lower steam pressure (< 20 bar, water around the tubes) In some text they had a formula (but not a reference): max Steam volume load = 0,264*10E3 * pE-0,7 * C exp -0,61 p pressure (bar) C...
  4. abcmex

    Design recomendations for steam volume in HRSG

    Dear RMW, the link contain some information but is not enough detailed, thks. Chicopee, as I already wrote to RMW I have the book and by the way it is not a so great reference for this problem. RGS
  5. 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...
  6. abcmex

    Design recomendations for steam volume in HRSG

    Dear RMW, as posted I check already the posting in this site and googled more than 5 pages. I have too the "Steam Book" from B&W but they only offer descriptional information of the factors affecting the steam separators. If you have useful information please comment. RGS
  7. 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...
  8. abcmex

    Calculate valve heat loss

    Dear Mr. Dias, if you visit the site www.spiraxsarco.com you will find some information about heat tracing. In some contries with high labor cost the tendence is to install electrical heat tracing but also to use metallic hoses...
  9. abcmex

    Liquid Nitrogen Storage and Distribution

    To liquify and store N2 is a feasible task. If you want to design it yourself, well good luck. If you want a straigth forward solution perhaps you should contact the usual suspects in the liquid nitrogen scene (Liquid Air, Praxair, Linde ect). they have standarized solutions which can be...
  10. abcmex

    blow down

    The problem here is that the lack of context makes the search for the proper answer more difficult. If you give more information perhaps the answer will be better. There are several kinds of blowdowns: 1. Steam Boiler. two blowdonwns here continious blowdown. the goal is to reduce the...
  11. abcmex

    Condenser for steam turbine

    Condenser are usually used. The water quality used in steam turbines is very high (=expensive). rgs
  12. abcmex

    Tracing heat loss coefficient

    Dear Mr Dias, I would recommend to consult the Chapter B6 of the "Piping Handbook" Nayyar et al. Mcgraw Hill RGS
  13. abcmex

    Triple Tube Heat Exchanger

    Dear Sir, I assume that you already got information like "Calculation of overall heat transfer coefficients in a triple tube heat exchanger", Batmaz, Ediz; Sandeep, K. P. What is specifically your problem? If you are a bit more specific perhaps you would get an answer. Rgs
  14. 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...
  15. abcmex

    Guidelines for CIP time?

    Clindeman, a CIP process depends strongy on many factors like: a) Product b) degree of dirtiness at the begining c) degree of cleanness needed d) geometry of the vessel There is a lot of "trial and error" involved. The flow you mention is probably for only one set of conditions. That is why to...
  16. abcmex

    formule for firetube boiler

    vidalf, To operate a boiler you need more than to verify the pressure vs. thickness. A boiler can be a very serius problem if it is not operated properly. First: look for the nameplate, if you find it you will have a starting point. Second: look for the technical documents and check if they...
  17. abcmex

    phosphate dosing in LP steam generators

    If you have one common boiler feed water supply you may try to dose the additive into the boiler feed water pump suction header. This may distribute the product in a more efficient way. In each case you could check with a chemical treatment supplier. They are experts in their field (although...
  18. abcmex

    Non-Metallic Pressure Safety Valve in HCL Service

    Metcorr, I think you should clarify which code covers the application and use an approved valve for the specific code. rgs.
  19. abcmex

    Phenolic coating

    Garlik, Can you please be more specific about your requirements? High temperature is not a very helpful description, better if you can say how high is the expected temperature. There are many coatings on the market but each has certain application limits. Some times even pressure and form of...
  20. abcmex

    Non-Metallic Pressure Safety Valve in HCL Service

    Austenitic stainless steel (like 316 or 304) do not like Chlorine at all :-).You can go for an exotic alloy if your operational temperature is too high or if you have a lot of money. A Plastic valve could help you or a coated valve like...

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