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Could it Work? Chemical & Biological Engineering

Could it Work? Chemical & Biological Engineering . Martin Pitt. Should you warm the teapot?. Teapot. Teapot (no lid) 449.8 g Teapot (with lid) 503.2 g Diameter about 10 cm Ceramic specific heat 1.09 kJ/kg K. Estimation Approximation. Estimation Approximation Simplification

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Could it Work? Chemical & Biological Engineering

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  1. Could it Work?Chemical & Biological Engineering Martin Pitt

  2. Should you warm the teapot?

  3. Teapot • Teapot (no lid) 449.8 g • Teapot (with lid) 503.2 g • Diameter about 10 cm • Ceramic specific heat 1.09 kJ/kg K

  4. Estimation Approximation • Estimation • Approximation • Simplification • Fundamentals not details

  5. Science Engineering • Knowing Doing

  6. Tasks and Problems • Task – when you know what to do • Problem – when you don’t • Originality – doing something else • Take an overview – what is really needed?

  7. A Task • Calculate Reynolds Number, given • velocity = 4.3 m s-1 • diameter = 0.12 m • density = 1082 kg m-3 • viscosity = 23 x 10-3 Pa s

  8. A Problem • Buy a pump for a flow rate of 6000 pounds per hour of 2.3% aqueous Xanthan Cellulose. • Why is this not a task?

  9. SOME TECHNIQUES • Brainstorming – structured, creative • Mindmap - unstructured, creative • Block diagrams- structured, analytical • Concept map - what you know

  10. Brainstorming • Each person has a chance to contribute • Contributions are collected • Contributions are not criticized • Even bad ideas may suggest good ones • Silly ones may have some valuable element

  11. Mind Map Think of related topics Think of related topics Startwith the topic or idea Think of related topics Think of what relates to them Think of what relates to them

  12. Intelligent Firefighting • Detection • Action • Control • Decision-making

  13. Block Diagrams • Broad descriptions of part of the solution • Showing relationships • Shows what you need to accomplish

  14. Product Storage Block Diagram Reaction Separate Purify Reagent Storage Waste Waste Disposal

  15. Some Tips • Externalize • Make a picture • Think widely

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