Program Name Natural Gas Piping Pressure Drop ExampleProgram Date Natural Gas Components Percent Volume Percent Mass 1. Nitrogen N2 0.987100 % 1.591292 % 2. Carbon Dioxide CO2 1.021563 % 2.587016 % 3. Helium HE 0.000000 % 0.000000 % 4. Methane CH4 93.041000 % 85.884639 % 5. Ethane C2H6 3.800000 % 6.574621 % 6. Propane C3H8 0.800000 % 2.029795 % 7. n-Butane C4H10 0.200000 % 0.668911 % 8. Isobutane C4H10 0.000000 % 0.000000 % 9. n-Pentane C5H12 0.100000 % 0.415163 % 10. Isopentane C5H12 0.000000 % 0.000000 % 11. n-Hexane C6H14 0.050000 % 0.247941 % 12. n-Heptanes C7H16 0.000000 % 0.000000 % 13. n-Octanes C8H18 0.000000 % 0.000000 % 14. n-Nonane C9H20 0.000000 % 0.000000 % 15. n-Decane C10H22 0.000000 % 0.000000 % 16. Hydrogen H2 0.000000 % 0.000000 % 17. Oxygen O2 0.000000 % 0.000000 % 18. Carbon Monoxide C0 0.000000 % 0.000000 % 19. Water Vapor H20 0.000000 % 0.000000 % 20. Ethylene C2H4 0.000000 % 0.000000 % 21. Propylene C3H6 0.000000 % 0.000000 % 22. Argon Ar 0.000000 % 0.000000 % 23. Hydrogen Sulfide H2S 0.000000 % 0.000000 % 24. Cyclopentane C5H10 0.000000 % 0.000000 % 25. NeoPentane C5H12 0.000000 % 0.000000 % 26. Sulfur S 0.000337 % 0.000622 % Total 100 % 100 % Natural Gas Properties 1. Temperature: 60.000 F 2. Barometric Pressure: 30.0000 in Hg 14.6931 psi 407.0728 in w.c. 3. Pipe Gauge Pressure: 0.5159 in Hg 0.2527 psig 7.0003 in w.c. 4. Total Pressure: 30.5159 in Hg (abs) 14.9458 psia 414.0731 in w.c. (abs) 5. Molecular Weight: 17.3787 lb mass/mole 6. Dry Gas Constant (R): 88.9267 ft-lbf/lbm-R 7. Density: 0.046572 lb/ft3 8. HHV (Btu/lb): 22,708.49 Btu/lb 9. HHV (Btu/ft3): 1,040.00 Btu/ft3 10. LHV (Btu/lb): 20,482.63 Btu/lb 11. LHV (Btu/ft3): 938.07 Btu/ft3 12. Natural Gas Consumption-HHV: 60,000.0000 Btu/hour 13. Natural Gas Mass Flow: 2.6422 lbs/hr 14. Natural Gas Volume Flow (Line 12/Line 9) 57.6921 ft3/hour At 60 F and a pressure of 30 in. Hg 15. Nat. Gas Volume Flow at Total Gas Pressure: 56.7337 actual ft3/hour (Line13/Line 7) 16. Standard Nat. Gas Volume Flow 57.6923 std ft3/hour (Line 12/1040 Btu/std ft3) a. Specific Gravity = 0.60 b. Temperature = 60 F c. Total Pressure = 30 in Hg d. HHV (Btu/ft3) = 1,040 e. HHV (Btu/lb) = 22,715.2066 f. Molecular Weight = 17.3787 g. Density = 0.04578431 lb/ft3 17. Natural Gas Specific Gravity 0.600000 18. Natural Gas - Absolute Viscosity (u) 107.4946 Micropoise 0.010749 Centipoise 0.00000722 lb/ft - sec Ultimate Analysis Elemental Analysis 1. Carbon 73.020831 % 105.662563 moles/100 moles of fuel 2. Hydrogen 23.506132 % 202.632000 moles/100 moles of fuel 3. Nitrogen 1.591292 % 0.987100 moles/100 moles of fuel 4. Oxygen 1.881039 % 1.021563 moles/100 moles of fuel 5. Sulfur 0.000622 % 0.000337 moles/100 moles of fuel Natural Gas Component Mass Flows 1. Nitrogen N2 : 0.0420 lbs/hr 2. Carbon Dioxide CO2 : 0.0684 lbs/hr 3. Helium HE : 0.0000 lbs/hr 4. Methane CH4 : 2.2692 lbs/hr 5. Ethane C2H6 : 0.1737 lbs/hr 6. Propane C3H8 : 0.0536 lbs/hr 7. n-Butane C4H10 : 0.0177 lbs/hr 8. Isobutane C4H10 : 0.0000 lbs/hr 9. n-Pentane C5H12 : 0.0110 lbs/hr 10. Isopentane C5H12 : 0.0000 lbs/hr 11. n-Hexane C6H14 : 0.0066 lbs/hr 12. n-Heptanes C7H16 : 0.0000 lbs/hr 13. n-Octanes C8H18 : 0.0000 lbs/hr 14. n-Nonane C9H20 : 0.0000 lbs/hr 15. n-Decane C10H22 : 0.0000 lbs/hr 16. Hydrogen H2 : 0.0000 lbs/hr 17. Oxygen O2 : 0.0000 lbs/hr 18. Carbon Monoxide C0 : 0.0000 lbs/hr 19. Water Vapor H20 : 0.0000 lbs/hr 20. Ethylene C2H4 : 0.0000 lbs/hr 21. Propylene C3H6 : 0.0000 lbs/hr 22. Argon Ar : 0.0000 lbs/hr 23. Hydrogen Sulfide H2S : 0.0000 lbs/hr 24. Cyclopentane C5H10 : 0.0000 lbs/hr 25. NeoPentane C5H12 : 0.0000 lbs/hr 26. Sulfur S: 0.0000 lbs/hr 27. Total Mass Flow: 2.6422 lbs/hr Natural Gas Pressure Drop Data 1. Absolute Roughnes Factor (e) 0.000060 Ft 2. Pipe Size Data 1/2 Inch Schedule 40 3. Pipe Inside Diameter 0.6220 inches 0.0518 feet 4. Pipe Outside Diameter 0.8400 inches 0.0700 feet 5. Transverse Internal Area 0.002110 ft2 6. Relative Roughness (e/ID) 0.001158 7. Natural Gas Volume Flow (at gas pressure) 56.7337 ft3/hour 8. Natural Gas - Average Velocity 448.1072 ft/min 7.4685 ft/sec 9. Nat. Gas - Density 0.046572 lb/ft 10. Nat. Gas - Specific Volume 21.472289 ft3/lb 11. Reynolds Number - Equation #1 2,495 12. Reynolds Number - Equation #2 2,494 13. Engineer input-Darcy Weisbach Friction Factor (fd) 14. Program Calculated - For Laminar Flow (fd) 15. Program Calculated - For Transitional Flow (fd) 16. Program Calculated - For Turbulent Flow a. Chuchill Friction Factor (fc) 0.000000 b. Conversion to Darcy Weisbach (fd) 0.046732 18. Frictional Pressure Drop - for 100 ft of Pipe 0.0253 psi 0.0516 in Hg 0.6997 in w.c. 19. Total Equivalent Pipe Length 100.0000 feet (Should include all piping & fittings) 20. Frictional Pressure Drop 0.0253 psi 0.0516 in Hg 0.6997 in w.c. 21. From Pipe Inlet to Discharge-Elevation Change 0.0000 feet A Negative Number Indicates a Decrease in Elevation From Pipe Inlet to Discharge 22. Pressure Drop - Due to Elevation Change 0.0000 psi 0.0000 in Hg 0.0000 in w.c. 23. Total Pressure Loss (Line 20 + Line 22) 0.0253 psig 0.0516 in Hg 0.6997 in w.c. 24 Barometric Pressure 14.6931 psi 30.0000 in Hg 407.0728 in w.c. 25 Pipe Pressure at Pipe Inlet - Gauge Pressure 0.2527 psig 0.5159 in Hg 7.0003 in w.c. 26 Pipe Pressure at Pipe Inlet - Absolute Pressure 14.9458 psia (Line 25 + Line 24) 30.5159 inHg (abs) 414.0731 in w.c. (abs) 27 Pipe Pressure at Pipe Discharge - Gauge Pressure 0.2274 psig (Line 25 - Line 23) 0.4643 in Hg 6.3006 in w.c. 28 Pipe Pressure at Pipe Discharge - Absolute Press 14.9205 psia (Line 27 + Line 24) 30.4643 in Hg (abs) 413.3734 in w.c. (abs)