19 May 2016

gPROMS ProcessBuilder v1.1 is now available

gPROMS ProcessBuilder v1.1 is now available

The major new feature in v1.1 is the new dynamic mode within key models, including distillation columns. This makes ProcessBuilder the first integrated flowsheeting package offering true equation-oriented steady-state and dynamic simulation and optimisation within the same environment.

In addition there are new and enhanced unit operations, including a Multi-Stream Heat Exchanger (MSHX), distributed versions of existing heat exchangers, new pipeline and Pressure Relief Valve (PRV) models and enhanced adsorption and controller models, as well as enhanced usability, speed and robustness in key areas.

All distillation column models can now be used in dynamic mode after selecting appropriate correlations to predict pressure drops and holdups on trays. The capability has been demonstrated on large-scale refinery crude distillation systems and coupled azeotropic columns. Dynamic operation is also available in heat exchangers, pipelines, reactors, vessels and other models.

The new Multi-Stream Heat Exchanger (MSHX) model includes a distributed mode with heat transfer and variations in fluid properties predicted along the length of each channel, and can operate in steady-state or dynamic mode. Custom correlations can be included to predict heat transfer and pressure drops for particular pieces of equipment. Similar capabilities are also found in the new distributed shell-and-tube and double-pipe heat exchanger models, and the new steady-state and dynamic pipeline, where fluid properties can vary along the length of the line. The PRV model describes the behaviour of a pressure relief valve/pressure safety valve for sizing for either a discharge coefficient or a discharge area.

ProcessBuilder’s custom modelling option now comes supplied with a set of 'starting point' templates and examples to simplify the addition of custom unit operation models. This is particularly useful for users creating corporate libraries to be used in flowsheets in combination with standard ProcessBuilder models.

ProcessBuilder v1.1 takes advantage of many other new features of the gPROMS platform, including the new DAEBDF solver, which offers improved robustness and significantly-increased performance for many models; sequential initialisation of hierarchical flowsheets to allow better structuring of large flowsheets; added functionality to assist in the initialisation of pressure-driven flowsheets; and further capabilities for initialising complex recycles, an area where ProcessBuilder is already strong. Automatic model pruning – the technique for removing unnecessary variables from the core solution – has been extended to remove time-invariant sub-systems for dynamic simulations, significantly accelerating dynamic flowsheet simulations and improving robustness.

Full support for the CAPE-OPEN thermodynamic interface allows gPROMS ProcessBuilder flowsheets to call material properties from an external CAPE-OPEN compliant physical property package, and support for the gSAFT v3.1.0 physical property package provides access to new methods and components for the SAFT equation-of-state.

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