The study focused on improving a power plant technology called IGCC, which uses coal in a cleaner way. The researchers wanted a more accurate model of the system, including the gasifier's pressure and flow distribution. They used a new technique called volume-resistance and modular modeling. The updated model showed that when considering the gasifier's distribution, there was a noticeable delay in the system's response. This means that by accounting for pressure and flow distribution, the model can give more reliable results for the IGCC system.