OPGEE model structure¶

OPGEE is designed as a generalized LCA/simulation model of processes linked by streams of substances, where each process processes some input streams based on thermodynamic principles and/or regression equations to produce one or more output streams. Process cycles, where the output of process A is an input to process B whose output ultimate flows back as an input to A, through zero or more intermediate processes.

The energy consumed and greenhouse gas emissions produced by each process are tracked, and the flow of the functional target (oil or gas) is tracked to one or more user-defined system boundaries, allowing the calculation of a “carbon intensity” in units of g CO₂-eq MJ^-1.

OPGEE’s Python classes¶

Analysis¶

Field¶

Process¶

Stream¶

Attribute subsystem¶

Attribute¶

Attribute definition¶

Class attributes¶