Strategies for process flowsheeting Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/fx719q444

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  • Two packages of subroutines were developed to perform material balances on chemical processes using the simultaneous modular approach and the equation-based approach. The performances of these packages were compared for five different processes under at least two conditions: one with no design specifications, and one with two or more design specifications. The equations arising from chemical process simulation using the simultaneous modular approach and equation-based approach are nonlinear. Therefore, two subroutines were developed to solve systems of nonlinear equations using a modification of Powell's dogleg method as proposed by Chen and Stadtherr. One of the nonlinear solver subroutines uses sparse matrix techniques and updates the Jacobian through Schubert's formula. The other uses full matrix techniques and the Jacobian is updated through Broyden's formula. Both subroutines were tested with five problems and the results compared. The results obtained with the two packages of subroutines and the nonlinear solver subroutines compared well with similar problems from the open literature.
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  • description.provenance : Submitted by Kevin Martin (martikev@onid.orst.edu) on 2013-07-02T18:31:02Z No. of bitstreams: 1 SanzCarlosC1985.pdf: 1956356 bytes, checksum: aa9d01ad107314f9cd427a9ffd7137fb (MD5)
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  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2013-07-29T23:29:49Z (GMT) No. of bitstreams: 1 SanzCarlosC1985.pdf: 1956356 bytes, checksum: aa9d01ad107314f9cd427a9ffd7137fb (MD5)

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