Calculate the erosion rate for pipe reducers (DNVGL-RP-O501 section 4.9). The reducer erosion model has been developed for ductile materials. The calculator can also be used for brittle materials (engineering judgement is required). The erosion model is not valid for pipe expanders (downstream diameter greater than upstream diameter).
Tool Input
- schdtypea : Schedule 1 Type
- diamtypea : Diameter 1 Type
- OD1u : User Defined Outside Diameter 1
- ID1u : User Defined Inside Diameter 1
- wtntypea : Wall Thickness 1 Type
- tn1u : User Defined Wall Thickness 1
- schdtypeb : Schedule 2 Type
- diamtypeb : Diameter 2 Type
- OD2u : User Defined Outside Diameter 2
- ID2u : User Defined Inside Diameter 2
- wtntypeb : Wall Thickness 2 Type
- tn2u : User Defined Wall Thickness 2
- mvtype : Fluid Density Type
- GORu : User Defined Gas Oil Ratio
- WCu : User Defined Water Cut
- ρu : User Defined Fluid Density
- voltype : Fluid Volume Flowrate Type
- Qou : User Defined Oil Volume Flow Rate
- Qlu : User Defined Liquid Volume Flow Rate
- Ngu : User Defined Gas Mole Flow Rate
- Qfu : User Defined Total Fluid Volume Flow Rate
- Mfu : User Defined Total Fluid Mass Flow Rate
- Vfu : User Defined Fluid Velocity
- pipetype : Pipe Material Type
- ρpu : User Defined Pipe Density
- Ku : User Defined Pipe K Factor
- nu : User Defined Pipe n Factor
- sandtype : Sand Material Type
- ρsu : User Defined Particle Density
- Su : User Defined Sand K Correction Factor
- conctype : Sand Concentration Type
- Qsu : User Defined Sand Volume Flow Rate
- Msu : User Defined Sand Mass Flow Rate
- ppmVu : User Defined Sand ppm Volume
- ppmMu : User Defined Sand ppm Mass
- Msyu : User Defined Sand Annual Mass Load
- lfactype : Erosion Loss Factor Type
- Lu : User Defined Erosion Loss Factor
- gftype : Geometry Factor Type
- GFu : User Defined GF Geometry Factor
- angletype : Taper Angle Type
- αu : User Defined Taper Angle
- αcu : User Defined Cone Angle
- Ltu : User Defined Transition Length
- ρo : Oil Density
- ρw : Water Density
- Pi : Fluid Absolute Pressure
- T : Fluid Absolute Temperature
- Z : Gas Compressibility Factor
- SG : Gas Specific Gravity
- Ds : Average Sand Diameter
Tool Output
- α : Characteristic Impact Angle
- ρf : Average Fluid Density
- ρg : Gas Density
- ρl : Liquid Density
- ρp : Pipe Density
- ρs : Sand Density (Not Required)
- Ar : Area Aspect Ratio
- At : Area Exposed To Erosion
- C2 : Particle Correction Factor
- F(α) : Impact Angle Factor
- GF : Geometry Factor
- GOR : Gas Oil Ratio
- ID : Inside Diameter For Flow Velocity
- ID1 : Inside Diameter 1
- ID2 : Inside Diameter 2
- K : Pipe K Factor
- L : Corrosion Loss Factor
- Mf : Total Fluid Mass Flow Rate
- Ms : Sand Mass Flow Rate
- Qf : Total Fluid Volume Flow Rate
- Qs : Sand Volume Flow Rate
- S : Sand K Correction Factor
- Vf : Downstream Fluid Velocity
- Vg : Gas Superficial Velocity
- Vl : Liquid Superficial Velocity
- Vo : Oil Superficial Velocity
- WC : Water Cut
- Ww : Water Superficial Velocity
- Xvg : Gas Volume Fraction
- Xvl : Liquid Volume Fraction
- Xvo : Oil Volume Fraction
- Xvw : Water Volume Fraction
- n : Pipe n exponent
- ppmM : Sand Concentration Parts Per Million Mass
- ppmV : Sand Concentration Parts Per Million Volume
- vg : Gas Mole Volume