Computational Simulation of Rectifier for an Air Separation Plant Using the Newton-Raphson Technique

Kawase, Y.; Hirose, Yasuo; Toyama, Atsushi; Funada, Ichiro

doi:10.1007/978-1-4613-4039-3_47

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1980

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“…This algorithm is independent of the calculation technique of the existing computer program, e.g. the Newton-Raphson method (Naphtali and Sandholm, 1971; Kubichek et al, 1976; Kawase et al, 1978), the tridiagonal matrix method (Wang and Henke, 1966), and so on. Therefore, this algorithm is flexible and readily applied.…”

Section: Introductionmentioning

confidence: 99%

Distillation Calculation for Cases of Specified Heat Duty by Modification of Existing Computer Programs

Hirose¹,

Kawase²,

Funada³

1980

Ind. Eng. Chem. Proc. Des. Dev.

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Some algorithms applied to solve problems of distillation in which heat duty of the reboiler or the condenser is specified, but the reflux ratio is not, are discussed. A useful and flexible algorithm is presented, in which an existing computer program for an operating column analysis is employed without change, and a useful correction loop for the reflux ratio is added externally. This loop is obtained from the relationship between the reflux ratio and an overall energy balance. This algorithm is readily applied because it is independent of the calculation technique used with an existing computer program. Numerical examples indicate the effectiveness and reliability of this algorithm.

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Section: Introductionmentioning

confidence: 99%