A regulation device for regulating a mixing ratio (x) of a gas mixture comprises a first conduit (1) for carrying a flow of a first gas (e.g., air) and a second conduit (2) for carrying a flow of a second gas (e.g., a fuel gas). The first and second conduits (1, 2) open out into a common conduit (3) in a mixing region (M) to form the gas mixture. A first sensor (S1) is configured to determine at least one thermal parameter of the gas mixture downstream from the mixing region. A control device (10) is configured to receive, from the first sensor, sensor signals indicative of the at least one thermal parameter of the gas mixture and to derive control signals for adjusting device (V1) acting to adjust the mixing ratio, based on the at least one thermal parameter.

Method and kiln for the firing of base ceramic articles (BC) comprising: a firing chamber inside which the base ceramic articles (BC) to be fired are conveyed; at least one burner for burning a combustion mixture to heat the firing chamber and to fire the base ceramic articles (BC); first and second feeding device for feeding, respectively, a fuel mixture and an oxidizer to the burner; an identification unit configured to assess the type of fuel mixture and a control assembly which is configured to activate the feeding device and/or the second feeding device depending on the temperature detected in the firing chamber, and to adjust the activation of the second feeding device depending on the type of fuel mixture and on the flow rate of the fuel mixture and on the flow rate of the oxidizer.

Servo gas system (11) for a gas burner (10), namely for controlling a pressure regulation valve (20) positioned in a gas duct (18) of the gas burner, thereby controlling a gas pressure within the gas duct (18) being present downstream of the pressure regulation valve (20) and thereby controlling a pressure difference between a pressure in a burner chamber (12) of the gas burner and said gas pressure within the gas duct (18), the servo gas system (11) comprising a static servo gas flow branch (28) and a dynamic servo gas flow branch (29) being connected in parallel, and a flow sensing element (30) being connected between the static servo gas flow branch (28) and the dynamic servo gas flow branch (29) and providing a signal used to control the pressure regulation valve (20) by an electric actuator (41).

A gas meter that is a flow rate measurement device includes a flow rate measurement unit for measuring, at a constant time interval, a flow rate of gas flowing in a passage, a pressure measurement unit for measuring pressure of the gas in the passage, a power supply unit for supplying power to a pressure measurement unit, and an appliance determination unit for determining an appliance being used based on a gas flow rate value. The gas meter further includes a measurement interval controller for determining a gas non-use state, an appliance determination performing state, or an appliance determination non-performing state based on the gas flow rate value and operation information of the appliance determination unit, for controlling the power supply unit in accordance with the determined state, and for changing an interval for turning on/off power supplied to the pressure measurement unit.

Embodiments disclosed herein are directed to devices and methods for improving operation of a combustion system. According to various embodiments disclosed herein, a prefabricated integrated combustion assembly is disclosed that may be installed into a combustion chamber of a combustion system. The combustion system may be a new combustion system that is being manufactured or a conventional combustion system that is being retrofitted.

A method for controlling a fuel-air mixture of a system with a manipulated variable for controlling an actuator (2) of the system in a first method phase for identification of the system behavior using a standard controller, in order to adjust the actual value on average to a target value. A profile of the actual value and a profile of the manipulated variable are recorded during the first method phase for identification of the system behavior, and from these the gain factor depending on the manipulated variable and the dead time are determined. After the determination of the dead time and the gain factor in a second method phase for model-predictive adaptive control of the system, the manipulated variable is determined using a model-based controller that has a Smith predictor and takes account of the gain factor and the dead time in order to adjust the actual value to the target value. Thus, in the second method phase, the manipulated variable has to be altered less frequently and less significantly by comparison with the first method phase.

A burner system for a furnace. The system may have a wedged or other shaped burner box. An air-fuel mixer may be attached to a smaller end of the burner box at virtually any angle relative to a direction of a gas and air mixture leaving the larger box end. A burner head may be attached to the larger end of the box. The burner head may be sufficient for numerous heater sections of a heat exchanger. A spacer and a radiation shield may be situated between the burner head and heat exchanger. An addition of the radiation shield may reduce the operating temperature of the burner box, burner head and/or spacer. A fan may move the gas and air mixture from the mixer, through the box and the burner head. The mixture may be ignited into a flame which is moved into the heat exchanger.

A method for lowering emissions that result from fuel combustion in a boiler may include obtaining, from a first sensor device, a plurality of fuel values of fuel parameters associated with a fuel injected into the boiler; obtain, from a second sensor device, a plurality of air values of air parameters associated with air injected into the boiler; identifying a fuel target flow rate and an air target flow rate based on the plurality of fuel values and the plurality of air values, wherein the fuel target flow rate and the air target flow rate result in a lower temperature in the boiler and in lowering the emissions from combustion in the boiler; controlling a fuel injection system to inject the fuel into the boiler at the fuel target flow rate; and controlling an air injection system to inject the air into the boiler at the air target flow rate.

The present invention describes a device for delivering a combustible gaseous mixture (M) comprising a first duct for feeding air (A) and a second duct for feeding a gaseous fuel (G), which join in a mixing zone, in which the gaseous fuel (G) and air (A) mix according to a lambda coefficient () before being sent to a burner, a ventilation device for feeding the air (A) and at the same time suctioning gaseous fuel (G) along said ducts, and means for regulating the flow rate of gaseous fuel (G). The invention also concerns a method to use a device for controlling the delivering of a combustible gaseous mixture (M).

A combustor including: a combustor case defining a plurality of case apertures; a liner within the combustor case defining a combustion zone and liner apertures through which an airflow flows into the combustion zone; a fuel injector having a fuel channel extending through a first case aperture and the liner, and the fuel channel has a nozzle at the combustion zone through which fuel is injected; an igniter for igniting the combustible mixture of fuel and airflow and providing a flame at the nozzle; and a flame sensor including: a radio frequency transponder, comprising a transmitter-receiver pair, located exterior to the combustor case; a horn antenna disposed in the fuel nozzle, and a tubular waveguide extending from the radio frequency transponder to the horn via one of the plurality of case apertures, wherein the flame sensor is configured to perform flame and flow field diagnostics.