Many chemical processes need large computation time to simulate. It has been observed that the speed of a process simulation depends to a large extent on evaluation of
certain important functions in the system to be simulated. One such function is K-value estimation function which involves heavy vapor-liquid equilibrium calculations. Because of large number of K-value calculations, there can be a bottleneck in simulation convergence. Thus within process simulation applications computational speed is often emphasized and accuracy is compromised.
In situ adaptive tabulation or ISAT, a storage and retrieval technique is proposed
for speeding up K-value estimation in a process simulator (CHEMCAD®) using the
input-output data. C language code is developed to implement ISAT algorithm for this
application. The C code is then converted into Dynamic link library to be able to be used
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by main CHEMCAD® code as required. The overall testing with different K-value
databases gave promising results improving computational time while maintaining
accuracy. / text
| Identifer | oai:union.ndltd.org:UTEXAS/oai:repositories.lib.utexas.edu:2152/ETD-UT-2010-12-2145 |
| Date | 14 February 2011 |
| Creators | Joag, Ela Pramod |
| Source Sets | University of Texas |
| Language | English |
| Detected Language | English |
| Type | thesis |
| Format | application/pdf |
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