At 2:00 PM, a plant operator notices a drop in pressure in a pipeline transporting a volatile hydrocarbon. The pressure is immediately restored to 4 atmg. At 2:30 PM, a 1.9 inch diameter hole is found in the pipeline and immediately repaired. Provide a worst-case estimate for the total amount of hydrocarbon spilled in kilograms. Note: SGhydrocarbon is 0.816
Area of hole = (3.14/4)*D²
= (3.14/4)*(1.9in x 1ft/12in)²
= 0.01968 ft2
Density of hydrocarbon = specific gravity x density of water
= 0.816 x 62.4 lbm/ft3
= 50.9184 lbm/ft3
Discharge coefficient from orifice Co = 0.61
Gauge pressure P = 4 atmg x 14.7psig/atmg
= 57.6 psig
Mass flow rate from hole
= ACo (2 x density x gc x P)^0.5
= 0.01968 ft2 x 0.61 x [2 x (50.9184 lbm/ft3) x (32.174 lbm-ft/lbf-s2) x (57.6 lbf/in2) x (144in2/ft2)]^0.5
= 0.0120048 x [27174044.37]^0.5
= 62.58 lbm/s
From 2:00 pm to 2:30 pm (30 min)
Mass flow rate = (62.58 lbm/s) x (30 min) x (60s/min)
= 112643.095 lbm
Volume spilled= mass/density
= (112643.095 lbm) / (50.9184 lbm/ft3)
= 2212.23 ft3 x (7.481 gal/ft3)
= 16550 gal
At 2:00 PM, a plant operator notices a drop in pressure in a pipeline transporting a...
At 2:00 PM, a plant operator notices a drop in pressure in a pipeline transporting a volatile hydrocarbon. The pressure is immediately restored to 7 atmg. At 2:30 PM, a 1.6 inch diameter hole is found in the pipeline and immediately repaired. Provide a worst-case estimate for the total amount of hydrocarbon spilled in kilograms. Note: SGhydrocarbon is 0.781
Write down your analysis of this case on factors like the interests involved, context and power PACIFIC OIL COMPANY (A)* "Look, you asked for my advice, and I gave it to you," Frank Kelsey said. "If I were you, I wouldn't make any more concessions! I really don't think you ought to agree to their last demand! But you're the one who has to live with the contract, not me!" Static on the transatlantic telephone connection obscured Jean Fontaine's reply....
Write down your analysis of this case on factors like 1. the negotiation process, strategy and tactics PACIFIC OIL COMPANY (A)* "Look, you asked for my advice, and I gave it to you," Frank Kelsey said. "If I were you, I wouldn't make any more concessions! I really don't think you ought to agree to their last demand! But you're the one who has to live with the contract, not me!" Static on the transatlantic telephone connection obscured Jean Fontaine's...