Process Design - Design Considerations

Design Considerations

Designs have objectives and constraints, and even a simple process requires a trade-off among such factors.

Objectives that a design may strive to include:

  • Throughput rate
  • Process yield
  • Product purity

Constraints include:

  • Capital cost
  • Available space
  • Safety concerns
  • Environmental impact and projected effluents and emissions
  • Waste production
  • Operating and maintenance costs

Other factors that designers may include are:

  • Reliability
  • Redundancy
  • Flexibility
  • Anticipated variability in feedstock and allowable variability in product.

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Famous quotes containing the word design:

    Nowadays the host does not admit you to his hearth, but has got the mason to build one for yourself somewhere in his alley, and hospitality is the art of keeping you at the greatest distance. There is as much secrecy about the cooking as if he had a design to poison you.
    Henry David Thoreau (1817–1862)