R1. A gas purification system needs to produce 3 kg/hour of purified product. If the purification membrane area is 40 m and 0.06mm thick,
R1. A gas purification system needs to produce 3 kg/hour of purified product. If the purification membrane area is 40 m and 0.06mm thick, determine: (4) A. Flux of gas required for desired production rate (in kg/m/s) B. Required membrane Diffusivity if the feed system has gas at 0.9 kg/m and the take-off side maintains a pressure of 0.1 kg/m. R2. Convert the following quantities (3) 50 mph: = 337 MPa = ft/min N/mm 1500 lbs = kN R3. An existing nitriding process requires 4 hours to produce a case 3.5 mm deep at a Temperature of 600 C. If the case needs to be increased to 5 mm, how long should the parts be processed? (3)
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