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Lecture 3 Flashcards

(12 cards)

1
Q

BFD

A

Block flow chart: very simple, quick overview

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2
Q

PFD

A

Process Flow Chart: more details, includes STREAMS AND EQUIPMENT

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3
Q

p&ID

A

Piping and Instrumentation Diagramm, very detailed EVERY VALVE, PIPING AND CONTROL LOOP

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4
Q

common mistakes (PFD)

A
  1. confusing flow paths
  2. complicated shapes
  3. Too many crossing lines
  4. incrorrect mass balance
  5. use of acronymes
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5
Q

Lines

A

future —
Major dicke linie
minor dünne Linie
Pneumatic (Luftdruck) ______ mit // //
Hydraulic (Öl) ______ mit LLL
Capillary Tubes _____ mit xxx
Electromagnatic Signal ______ mit Wave
Electric _ _ _ _ _

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6
Q

Pumps

A

TWO basic principles
1. positive Displacement (Piston and plunger Pump, Gear Pump, Diaphragma Pump, Scre Pump)
2. Dynamic (Cenrifugal Pump (radial/axial/mixed flow)

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7
Q

Cavitation

A

When pressure drops rapidly –> micro jets catapults liquid against surface and damages it –> causes noise

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8
Q

compensators/ Accumulator

A

Buffer or Shock obsorber for fluid syste, –> evens out pressure changes caused by pump –> system more smoothly and less risk of damage

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9
Q

Valves

A

Controlling flow of fluids (start, stop, rate, direction)
z.B.: pinch valves, membrane valves, needle valves, globe valves, gate valves, check valves, safty valves, burst valves)

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10
Q

Rector vessels

A
  1. Stirred Tank +process controll - foaming
  2. Plug flow +high volumtric loading - limited flexibility
  3. Packed bed +high cell density -difficult scale up
  4. moving bed +reeduced sluge production -carrier clogging
  5. airlift reactor +scalability -bubbles collape
  6. membrane reactor for WastWater Treatment
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11
Q

Seperation Techniques

A
  1. Cenrtifuge
  2. Membrane System (AFT&TFF)
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12
Q

Cooling and heating for bioreactor Systems

A
  1. Jacket (most common) even heat distribution, fouling
  2. External Coil +heat transfer -heat distribution
    a. shell: bundle Tubes + wide T&p range -spacy
    b. plate: stacked plates +efficiant -fouling
  3. Internal heating rod +maintenance -spot
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