Process Simulation Modelling (PSM)
PSM is a stand-alone modelling and simulation environment for CSSBoost value chains. It creates digital representations of processes, actors, resources and flows, allowing users to run what-if simulations, estimate balances and assess alternative circularity and sustainability scenarios.
Modelling of stages, processes, actors, resources and input/output flows.
Simulation of material-flow networks from single processes to full CSS value chains.
Support for discrete-event, agent-based, system dynamics and hybrid simulation approaches.
Definition of process and system parameters.
What-if scenario design through parametric and structural changes.
Simulation reporting through visual and tabular outputs.
PSM Web API for remote simulation execution.
A model requires the processes and stages of the value chain, the participating actors, and named resources with consistent units. Connections describe the direction of resource flows between processes and input, junction or output places. Process parameters and calculation relationships determine how inputs are converted into outputs. At least one resource flow must be known to solve the network. Scenario analysis then changes selected parameters or structural relationships while keeping the remaining model assumptions explicit.
PSM models circular value chains as processes, actors, resources and flows and supports what-if simulation. Models have been developed for two Crete value chains, with a third being finalised. A Marche model awaits operational data, preliminary models cover the two German chains, and Lisbon models are being refined. Process Simulation Modelling (PSM) represents circular value chains as material-flow networks. A model combines processes with input, junction and output places, connected by resource flows. Resources have defined names and units, while processes can be organised into stages and associated with the actors responsible for them. This structure allows users to examine how activities and material exchanges form a complete value chain. Calculations can use conversion factors, scripts or external services for more complex process relationships. At least one resource flow must be known to solve the model. Process-specific and global parameters allow users to vary operating assumptions and compare alternative configurations. The standalone modelling application is complemented by a web API for uploading models, updating parameters and running simulations remotely. Within CSSBoost, PSM provides a basis for what-if analysis and for linking physical flows to sustainability assessment. Dynamic LCA and the Sustainability Balanced Scorecard build on the modelled processes and inventories. Simulation outputs describe the consequences of the specified model and assumptions, allowing alternatives to be explored before decisions are applied to a physical value chain.
Consolidate models using pilot partner feedback and measured operating parameters; complete connections with the regional platform and assessment services.
Process configurations, material and energy flows, capacities, operating parameters, transport and scenario assumptions, with the source of each input recorded.
Scenario material/energy balances, process-level results and visual/tabular comparisons. Model outputs are estimates until validated against the relevant pilot.
Standalone modelling environment and PSM Web API for remote execution; documented JSON/XML exchange and platform integration.
