CHE 481 Lecture Notes - Lecture 3: Thermal Conductivity, Grignard Reaction, Monel
16 Oct 2016
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7. 3. 4 bare module cost for (non-base) case conditions: non base have values fp & fm >1, module factor at base f (bm naught) is replaced by fbm, 1-pressure factor. Cost of the vessel depends on the weight which depends on the thickness. Stress depends on the type of material and the temperature. Plethora of charts and figures to assist with the calculations and cost- dependent pressure factors. Pressure between 0 to 1 there is no need to increase the thickness. Minimum thickness of the vessel - thickness at which the vessel does not buckle with transport: 2 - material of construction moc. Material selected to deal with chemicals and temperature. Polymers - resist acid and alkaline corrosion but less strength. Carbon steel - common, cheap, easy to weld. Stainless steel - resist corrosion by a factor of 10. Aluminum alloys - high strength, resist corrosion, good to machine, welding is bad.
