A method includes obtaining data associated with operation of equipment in an industrial process and identifying training data and evaluation data in the obtained data. The method also includes, during each of multiple training periods, identifying one or more models and one or more first statistical values using at least some of the training data and determining a threshold value using the one or more first statistical values. The one or more models represent the operation of the equipment. The method further includes, during each of multiple evaluation periods, determining one or more second statistical values using at least some of the evaluation data and the one or more models, comparing the one or more second statistical values to the threshold value determined in a preceding one of the training periods, and determining whether the equipment is suffering from at least one specified condition based on the comparison. In addition, the method includes, in response to determining that the equipment is suffering from the at least one specified condition, generating an alert identifying the at least one specified condition.

The present invention relates to a boiler which determines a clogging degree of an exhaust flue through which combustion gas is discharged and adjusts gas supply amount to maintain its combustibility, and a combustion control method thereof, the method of the present invention including a) setting a target heat value for achieving a target temperature, b) applying a first database on the basis of the target heat value, c) measuring a rotational speed of an air blower and a pneumatic pressure of air introduced by rotation of the air blow, d) applying a second database on the basis of a rotational speed difference, a pneumatic pressure difference, and the target heat value to calculate an estimated flue clogging value according to the target heat value, and a) applying a third database according to the estimated flue clogging value to calculate an opening amount of a gas valve and control gas supply amount.

A microprocessor-based controller manages combustion within a biofuel furnace. A clinker agitator controller generates signals for controlling operation of a motorized clinker agitator of the biofuel furnace. The microprocessor-based controller may additionally control any of fuel feed rate, air supply rate and ash removal rate.

Systems and methods for generating heat, power, and for processing mixed waste streams, using pyrolysis and one or more pyrolysis systems. A pyrolysis system configured to receive material for pyrolysis, comprising a heating chamber configured to receive a waste gas stream for heating the material and one or more ports for metering fuel and oxidizer to the heating chamber for combustion. A pyrolysis chamber holds the material during pyrolysis in isolation from the hot gas in the heating chamber and is disposed inside the heating chamber to circumferentially heat the material for pyrolysis. A screw conveyer conveys the material through the pyrolysis chamber.

A furnace includes a controller configured to instruct a blower of the furnace to increase an exhaust flowrate of the furnace, instruct a gas regulation device of the furnace to increase a fuel input rate of the furnace, or both in response to a determination that the fuel input rate is below a threshold fuel input rate for a threshold time period. In some embodiments, the controller is configured to instruct the blower to maintain an increased exhaust flowrate for a flame-stabilizing time period the gas regulation device to maintain an increased fuel input rate for the flame-stabilizing time period, or both.

A method includes identifying a first steady-state gain associated with a relationship between a characteristic of a furnace and a setpoint used by a controller that is configured to control the characteristic of the furnace, The first steady-state gain is identified using data collected when the furnace is not suffering from flooding. The method also includes identifying a second steady-state gain associated with the relationship during operation of the furnace. The method further includes comparing the first and second steady-state gains and identifying actual or potential flooding of the furnace based on the comparison.

A combustion control system that collects and accumulates, at predetermined intervals, combustion controlling information including at least a signal indicating an operating state of an ignition device, a signal indicating the supplying state of fuel to a pilot burner, a signal indicating the supplying state of fuel to a main burner, a signal indicating the supplying state of air to the main burner, a flame detection signal indicating the strengths of the flames of the burners (the pilot burner and the main burner), and information indicating presence or absence of the flames determined based on the value of the flame detection signal, and displays the combustion controlling information as trend data of combustion control in a graph in such a form that the relationship between time zones of the combustion sequences from the start of a combustion device to normal combustion and the trend data is understandable.

A microprocessor-based controller manages combustion within a biofuel furnace. A clinker agitator controller generates signals for controlling operation of a motorized clinker agitator of the biofuel furnace. The microprocessor-based controller may additionally control any of fuel feed rate, air supply rate and ash removal rate.

A microprocessor-based controller manages delivery of BTUs or power by determining an amount of thermal heat or power needed through sensors and, in response, controls a batch or continuous feed of biofuel fuel and/or air to a biofuel furnace. The controller controls the fuel and air required to operate the furnace efficiently.

A method includes identifying a first steady-state gain associated with a relationship between a characteristic of a furnace and a setpoint used by a controller that is configured to control the characteristic of the furnace, The first steady-state gain is identified using data collected when the furnace is not suffering from flooding.

The method also includes identifying a second steady-state gain associated with the relationship during operation of the furnace. The method further includes comparing the first and second steady-state gains and identifying actual or potential flooding of the furnace based on the comparison.