Research Article
Effect of Change in Plant Capacity towards Controllability of Biohydrogen Production Plant from Biomass
Table 2
List of controlled variables and the chosen controller type.
| Controlled variables | Controller types | Reasons |
| Temperature inside gasifier | MPC | Energy conversion and maximizing reaction inside the gasifier | Temperature inside char combustor | PI | This process does not directly affect the amount of H2 produced | Temperature of “flue gas out” stream | PI | This process is simple and does not directly affect the amount of H2 produced | Temperature of “gas out SMR” stream | MPC | Energy conversion and maximizing reaction inside the SMR | Temperature of “gas to WGS” stream | MPC | Energy conversion and maximizing reaction inside the WGS reactor |
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