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  1. Gottburg

    Hot Oil Efficiency

    Cp and SG are linear (type sg=a*T(C)+b also Cp is linear same general equation. I realized that delta T thru our equipment is just 13C, so each 1C in T difference lead to up to 8% error in absorbed heat. We are going to a instrument checking effort now. Thank to everybody for the comments and help.
  2. Gottburg

    Hot Oil Efficiency

    Zoobie, For Cp and SG I'm using the equation presented on the product data sheet. I agree with "compounded error". I'll go thru a instrument calibration campaing to check on these.
  3. Gottburg

    Hot Oil Efficiency

    Gracias 25362.... The xs air 10 % was reported to me by the company that tuned the burner...I'll ask more detail. Zoobie: I’m using Terminol 72, 3 year old. For Cp, SG I’m using manufacture correlations at T average thru the heater. Thanks y’all so far
  4. Gottburg

    Hot Oil Efficiency

    Thanks to all for your feedback, here there are some answers: Combustion Efficiency: I was using fabricator manual: He suggests using the %air excess and the stack temperature go in a table (a table for NG and with 80F/60HR Air) and get “%H”, this value should be then subtract from 100%. Then...
  5. Gottburg

    Hot Oil Efficiency

    Thanks 25362. Air was tunned to 10% 4 week ago. So for us does not seems to much.
  6. Gottburg

    Hot Oil Efficiency

    In our plant we have a hot oil heater running with natural gas. Equipment capacity= 13.7 MMBTU/hr (absorbed heat) Currently we are running about 14 MMBTU/hr of released heat (burning this amount) and we are getting efficiency about 65% measured as Heat absorbed by the oil/heat released by...
  7. Gottburg

    Two Liquids phases flow: Phases ratio?

    JMW, thanks for the thoughts Some extra info: Both phases are: Oily: SG 0.95 Aqueous: SG varies between 1.08 to 1.18. Basically is sodium sulfate in water. And no control on it. Temp= 100 C We have all kind of piping orientation: vertical and horizontal. Also we have a static mixer in the...
  8. Gottburg

    Two Liquids phases flow: Phases ratio?

    As a result acidulations process, we get a two liquid phase flow: an oily phase and brine (water and sodium sulfate). Liquid phases ratio is critical to a later centrifuge operation. So far a uncomplicated sampling procedure is used to visually evaluate the phases ration, but we want to go with...
  9. Gottburg

    copper or stainless

    I'm on a design process of a no critical piping. And I need define if tracing will be copper or stainless. I need some experience on this matter. All critical piping will be jacketed (steam, hotoil or tempered water. thanks in advance, Gottburg
  10. Gottburg

    What are the criteria for selecting type of a cooling tower fillings

    Take care with your inssurance company. They there are, some times, some special req. Gottburg
  11. Gottburg

    Contro Traced

    I need information related this tracing system. Any type of orientation will be wellcome.
  12. Gottburg

    H2SO4 Concentration

    I need some information regarding "Contro Tracer" on piping. Where I can found information?

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