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  • Users: SuperG
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  1. SuperG

    How to calculate linepack

    Does anyone know how to compute linepack in a natural gas pipeline? I can't seem to match by hand what is being reported in several simulation programs...thanks for the help!
  2. SuperG

    Which Gas Equations Use Pipe Roughness

    Which equations do you guys typically use when you want to include pipe roughness?
  3. SuperG

    How did Pipe Efficiency Come About?

    Although I have used pipe efficiency in the past, I was wondering how it came to be in equations? Was it Panhandle? What does the efficiency really measure? Thanks for any help...
  4. SuperG

    Guidance Regarding Liquid Holdup

    After conducting a search, I am afraid I could not come up with any answers, so please forgive me if this ends up being a simple question: Regaring liquid holdup in gas pipelines, the liquid falls out and just sits in the pipeline, not moving...right? If so, what about calculated holdup...
  5. SuperG

    Determine Whether Liquid (in Gas) will Block a P/L

    Folks, I am working on a natural gas pipeline, which will experience liquid holdup. I am concerned that some of this liquid will travel down the pipe into a valley and eventually block the pipeline, preventing the gas from flowing... How do I determine if this is a legitimate concern?
  6. SuperG

    Determine Liquids Recovery Using Pipephase

    If I have the composition of a gas, how do I use Pipephase to determine how much propane I can recovery assuming a standard (or typical) cryo plant? What assumptions would I make? Thanks for the help! Gary
  7. SuperG

    How to Calculate Water Line for Floating Pipe

    If I have a pipe that will be floated in water, how do I calculate how deep the pipe will sink, or the height at which the water rises along the pipe? Assume the pipe is horizontal and closed at both ends...thanks for the help!
  8. SuperG

    Temperature Profile in Pipe due to Soil

    What (or where) are the equations for heat transfer between fluid-pipe-soil? I have a pipeline simulator and am determining the temperature decline of a gas. The pipeline is buried 3' under the soil line and the soil line is 100' under water. As I run the model with decreasing flow rate, I...
  9. SuperG

    How do you size Relief Tanks and its Relief Line?

    I have a production separator that relieves oil/water/gas to a relief tank. The tank has a relief line (pipe) from the top, extended 25' horizontally away. This relief line vents the gas from the tank. I am trying to calculate the proper size of the relief line. When the separator exceeds a...
  10. SuperG

    How do you size Relief Tanks and its Relief Line?

    I have a production separator that relieves oil/water/gas to a relief tank. The tank has a relief line (pipe) from the top, extended 25' horizontally away. This relief line vents the gas from the tank. I am trying to calculate the proper size of the relief line. When the separator exceeds a...
  11. SuperG

    How to Determine Fracture Propogation in Pipe?

    Does anyone know the method of determining the fracture propogation of pipe? I am trying to determine the resistance to fracture propogation for various grades of pipe. For example, if a pipe fractures under high pressure, what is the propensity for the fracture to continue to adjacent pipes...
  12. SuperG

    How to Determine Fracture Propogation in Pipe?

    Does anyone know the method of determining the fracture propogation of pipe? I am trying to determine the resistance to fracture propogation for various grades of pipe. For example, if a pipe fractures under high pressure, what is the propensity for the fracture to continue to adjacent pipes...
  13. SuperG

    Thermocouple Pressure Drop in Pipe

    How do you calculate the pressure drop in a pipe due to a thermocouple in the middle of the fluid stream? I have a 4" pipe with water flowing through it and a thermocouple will be permanently inserted into the stream. I see thermocouples can be inserted vertically or at an angle along the...
  14. SuperG

    Noise Calculations for Pipe Flow

    Can you direct me to some noise calculations regarding fluid flow in small pipes? Specifically, I have 4" Nominal Pipe. The different fluids I am looking at are Water, CO2, and a production stream comprised of water/oil/gas. Thanks for the help!
  15. SuperG

    Calculate CO2 Flow Rate from SCFD to lb/hr

    Well, it's been a while sinve I've had to do one of these calculations. Does anyone know what the mass flow rate of CO2 is in lbs/hr if you have 15 MMSCFD flow rate? It's in gaseous form and somewhere near 100-150 F...thanks!
  16. SuperG

    dP Calculations trhough Valves with Multi-Phase Fluids

    Hey folks! How do I calculate the pressure drop across a valve using a multi-phase fluid? I am calculating pressure drops through ball valves and check valves, now I need to do the same for 3-way valves. I am at a loss regarding pressure drop for the 3-way valve. Also, after some...
  17. SuperG

    Heat Capacity and Viscosity of Ethane/Propane Mix

    I am modeling a pipeline, which carries an Ethane/Propane Mix. I cannot seem to find any heat capacities or viscosities for a standar mix (80/20). Can anyone help?

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