A control system for monitoring a pressure vessel includes a pressure sensor coupled to a first pressure vessel component. The system also includes a level sensor coupled to a second pressure vessel component. The system additionally includes at least one computing device including at least one input channel configured to receive data from the pressure sensor and the level sensor and a processor coupled to the at least one input channel. The processor is programmed to populate a level and pressure dynamics model associated with the pressure vessel with data received from the pressure sensor and the level sensor, the processor further programmed to be capable of controlling operation of the pressure vessel based on the level and pressure dynamics model.