Hydrogen is stored at 400C in a long cylindrical steel vessel with an inner diameter of...

 

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Hydrogen is stored at 400C in a long cylindrical steel vessel with an inner diameter of 0.1 m. Calculate the wall thickness of the vessel at which the hydrogen leaks from the vessel by diffusion through the wall at the rate of 0.1 cm (STP) per second per meter length of the vessel. The hydrogen pressure inside the vessel is maintained at 101.3 kPa, and the (hydrogen) pressure outside the vessel is negligibly small. At 400C, the diffusion coefficient for hydrogen in iron is 10-8 m/s, and according to Sievert's law, "CH(kg/m)=7.29x10-5p1/2 (Pa)." Hydrogen is stored at 400C in a long cylindrical steel vessel with an inner diameter of 0.1 m. Calculate the wall thickness of the vessel at which the hydrogen leaks from the vessel by diffusion through the wall at the rate of 0.1 cm (STP) per second per meter length of the vessel. The hydrogen pressure inside the vessel is maintained at 101.3 kPa, and the (hydrogen) pressure outside the vessel is negligibly small. At 400C, the diffusion coefficient for hydrogen in iron is 10-8 m/s, and according to Sievert's law, "CH(kg/m)=7.29x10-5p1/2 (Pa)."

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The problem at hand requires us to calculate the wall thickness of a steel vessel through which hydrogen diffuses at a given rate To determine the thi... View the full answer