Prospectus

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DST-13 Dynamic Model Verification of Tray Performance Expected Benefit toMembers:

Traditional Research Idea

Dynamic column simulation is used to verify control system strategy and is the heart of a training simulator for operators. Improvements in these models would assist in optimizing control strategy and operator training - before the column is actually started up. Present Situation and Proposed Research: Simplified tray hold-up models are used by dynamic simulations to ensure rapid calculation, since the model needs to run faster than real time in order to be useful. FRI could obtain detailed time dependent composition and holdup data for a trayed column during a step change. This could then be used by the major dynamic simulation vendors to improve their internal models. The membership would also learn how good the initial model predictions were. Proposed Internals and Test System: Standard valve or sieve trays. Estimated Unit Time: Four weeks. Estimated Additional Costs (Beyond Unit Time): None. Background and Discussion: Dynamic modeling use is becoming more widespread and frequent. Users need to be assured that the dynamic simulation results truly match reality. And with computers becoming more powerful, more complex models can be used within the dynamic simulation while still allowing the simulation to run at least twice real-time speed.

PROSPECTUS

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