Primary out secondary out a schematic of a typical

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Unformatted text preview: ? •  What size pipes should be used? •  How many pumps are needed? Microfluidics Device Flow in Microfluidics Device: •  What is pressure drop that builds in the device? •  What is the minimum amount of material that can be processed? 21 •  Are there stagnation points? Mass and Heat Transfer •  How can you quickly cool process water so that it can be discharged? Primary Secondary fluid in fluid in •  How long to roast a chicken? Primary out Secondary out A schematic of a typical crossflow heat exchanger •  The speed of laptops is limited by how much it heats up. How can 22 you remove the heat? Separations Overview of separation processes relevant to the chemical and process industries Adsorption Distillation Membrane Separation Water purification Recovery of biopolymers Fractionation of industrial chemical Petroleum refining Solvent recovery Decaffeination Gas separation Medical separations Waste treatment 23 Reaction Engineering Hydrogen-Oxygen Fuel Cell H2 → 2H+ + 2e1/ O + 2H+ + 2e- → H O 22 2 1/ O → H O! H2 + 2 2 2 H 2 " 2H + + 2e# ! ! 1 Direct Methanol Fuel Cell (DMFC) ! CH3OH + H2O H+ Anode (negative charge) O2 from Air Cathode e- (positive charge) ! 2 O 2 + 2H + + 2e" # H 2 O CH3OH + H2O → CO2 + 6H+ + 6e3/ O + 6H+ + 6e- → 3H O 22 2 3/ O → CO + 2H O! CH3OH + 2 2 2 2 24 How do we prepare you? S...
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This note was uploaded on 01/17/2012 for the course ENGR 110 taught by Professor None during the Fall '08 term at University of Michigan.

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