Parametric modeling object development

What are the fundamental steps for developing an object in parametric modeling ... 

SECTION 2 DEVELOPING AN OBJECT USING PARAMETRIC MODELING ... 

The objective of this investigation was, therefore, (i) to assimilate flie rqipropriate plant data from various sources, (ii) to determine and estimate their accuracy, (iii) to calculate closed mass balances for defined intervals of time, and (iv) to develop quantitative model to predict the production of ZIC and its composition based on the feed materials and their analysis. In the course of the investigation, the mass balance model was developed first (Model 1) with the aid of data reconciliation. Then, the prediction model (Model 2) was calculated based on the results of Model 1 incorporating a multi-parametrical regression analysis, hi this paper, the capabilities of the combination of these two modem computer-aided tools will be demonstrated as applied to the Ruhr-Zink flowsheet. With these methods, a plant simulator can be updated in a relatively short time that incorporates the latest changes in the flowsheet. 

Gereg and Capolla developed process parameters determined by a model laboratory bench scale Carver press, model C (Carver Inc. Savannah, Georgia, U.S.A.), which were translated to production scale compactor parameters (6). Their study provided a method to predict whether a material is suitable for roller compaction. Their study objectives were to characterize properties of the material to identify process parameters suitable to achieve the necessary particle size and density using the dry granulation process and then translate laboratory information to a production scale roller compactor. Actually, information developed from a Carver press was correlated and scaled-up to a production scale Fitzpatrick roller compactor. Model IR 520 (Fitzpatrick Co., Elmhurst, Illinois, U.S.A.) The compactor produced very similar powder granule characteristics as the Carver press. Various lactose materials, available as lactose monohydrate or spray dried lactose monohydrate, were used as the model compounds. Results indicated that a parametric correlation could be made between the laboratory bench Carver press and the production scale compactor, and that many process parameters can be transferred directly. 

The RELAP5/MOD3 code is based on a non-homogeneous and non-equilibrium model for the two-phase system that is solved by a fast, partially implicit numerical scheme to permit economical calculation of system transients. The objective of the RELAP5 development effort from the outset was to produce a code that included important first-order effects necessary for accurate prediction of system transients but that was sufficiently simple and cost effective so that parametric or sensitivity studies were possible. 

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