Design a spherical tank, with a wall thickness of 2 cm that will assure that no more than 50 kg of hydrogen will be lost per year. The tank, which will operate at 500 °C, can be made of nickel, aluminum, copper, or iron. The diffusion coefficient of hydrogen and the cost per kg for each available material is listed here.

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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Design a spherical tank, with a wall thickness of 2 cm that will assure that no more than 50 kg of hydrogen will be lost per year. The tank, which will operate at 500 °C, can be made of nickel, aluminum, copper, or iron. The diffusion coefficient of hydrogen and the cost per kg for each available material is listed here.

Do (cm²/s)
0.0055
Cost ($/kg)
Q (cal/mol)
8,900
10,340
9,380
3,600
Material
Nickel
9.0
Aluminium
0.16
1.32
Соpper
Iron (BCC)
0.011
2.43
0.0012
0.33
Transcribed Image Text:Do (cm²/s) 0.0055 Cost ($/kg) Q (cal/mol) 8,900 10,340 9,380 3,600 Material Nickel 9.0 Aluminium 0.16 1.32 Соpper Iron (BCC) 0.011 2.43 0.0012 0.33
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