A polyethylene (PE) membrane is being used as an oxygen barrier. Oxygen is being supplied on the high pressure side at 0.25 kg/m3, and on the other side is a vacuum (concentration of oxygen is 0 kg/m3). If the desired flux is 4E-8 kg/m2s, what should the thickness of the PE membrane be? Answer in mm. The diffusion coefficient of oxygen in PE at the operating temperature is 4.5E-11 m2/s. Equation is J= -D(C1-C2/X1-X2)

A polyethylene (PE) membrane is being used as an oxygen barrier. Oxygen is being supplied on the high pressure side at 0.25 kg/m3, and on the other side is a vacuum (concentration of oxygen is 0 kg/m3). If the desired flux is 4E-8 kg/m2s, what should the thickness of the PE membrane be? Answer in mm. The diffusion coefficient of oxygen in PE at the operating temperature is 4.5E-11 m2/s. Equation is J= -D(C1-C2/X1-X2)

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter9: Heat Transfer With Phase Change

Section: Chapter Questions

Problem 9.29P

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A polyethylene (PE) membrane is being used as an oxygen barrier. Oxygen is being supplied on the high pressure side at 0.25 kg/m³, and on the other side is a vacuum (concentration of oxygen is 0 kg/m³). If the desired flux is 4E-8 kg/m²s, what should the thickness of the PE membrane be? Answer in mm. The diffusion coefficient of oxygen in PE at the operating temperature is 4.5E-11 m²/s. Equation is J= -D(C1-C2/X1-X2)

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