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Research update flexibility analysis

Research update flexibility analysis. Jeonghwa Moon. Research update (9/17-9/30). LPPD solver update interfaces for Linear algebra solvers Feasibility test steady state dynamic state. FEHE. i C 5. Time. Purge. Feasibility test. Recycle. ko, l. Furnace. Product. Flooded Condenser.

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Research update flexibility analysis

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  1. Research updateflexibility analysis Jeonghwa Moon

  2. Research update (9/17-9/30) • LPPD solver update • interfaces for Linear algebra solvers • Feasibility test • steady state • dynamic state

  3. FEHE iC5 Time Purge Feasibility test Recycle ko,l Furnace Product Flooded Condenser Reactor Input Feed nC3,iC4,nC4,iC5 DIB Column Purge Column

  4. P q2 (l) q1 (k0) • Uncertain kinetics parameter • preexponental factor, ko : (s-1) • heat of reaction , l (J/kmol) critical point! l (k0)

  5. Process / manipulated variables • Process variables (x)/constraints • manipulated variable u • 3 by 4 MIMO system

  6. Sampling (10 uncertain parameter sets) :10+critical point Optimal design(1) D1:156ft3 D2:59 D3:32 D4:1,034 ft2 Optimal design(2) D1:432ft3 D2:52 D3:33 D4:1,011 ft2 Feasible? Feasible? x(d)<0? No Yes END Critical point at (ko= 2.66e7, l=-3,900) D1 :reactor volume(ft3), D2: DIB total trays , D3: Purge column total trays D4: FEHE Area (ft2) Fig 10 steady state x(d)=489 dynamic state x(d)=-0.2 stedy state x(d)=-127

  7. Steady state feasibility test u’ maximum value (temperature) in simulation u’<u4<umax u’ l (k0)

  8. Dynamic flexibility test

  9. Dynamic flexibility test PFR= series of CSTRs i=0~3) C,T C,T C,T C,T k=2 k=3 k=0 k=1 C 2,500 nodes t

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