An oxy-fuel burner (10) with monitoring including a fuel passage (320) terminating in a fuel nozzle (322), a primary oxidant passage (330) terminating in an oxidant nozzle (333), one or more sensors including a nozzle temperature sensor (372) for sensing at least one of an oxidant nozzle temperature and a fuel nozzle temperature, and a data processor (66, 166,266) programmed to receive data from the sensors and to determine based on at least a portion of the received data the presence or absence of an abnormal burner condition including a potential partial obstruction of at least one of the primary oxidant passage (330) and the fuel passage (320) based on an increase or decrease in at least one of the oxidant nozzle temperature and the fuel nozzle temperature.

Sparkless igniters comprising a hot surface igniter assembly and a nozzle that produce a flame plume with diameter substantially similar to the diameter of the fire tube, and flame length less than the length of each leg of the U-shaped fire tube in heater treaters are disclosed. The disclosed igniters and methods are applicable to both vertical and horizontal heater treaters and improve the durability of fire tubes while reducing igniter fuel consumption by at least 30%.

An intelligent heating system device is provided with processing, communications, and other information technology components, for remote monitoring and control and various value added features and services, embodiments of which use a renewable energy-powered electrolyzer to produce hydrogen as an on-demand fuel stream for a heating element of the heating system.

A method of determining a fuel delivery fault in a gas turbine engine is provided, the engine having a combustor, a combustor fuel system for delivering fuel to the combustor, and a turbine which is driven by hot gas from the combustor. The method includes comparing a measured turbine gas temperature profile against a predicted turbine gas temperature profile. The method further includes comparing a measured combustor instability against a predicted combustor instability. The method further includes indicating that a fuel delivery fault in the combustor fuel system has been detected when both the measured turbine gas temperature profile and the measured combustor instability differ from their predicted values by more than respective predetermined thresholds.

The present invention provides a dual fuel ignition device and a work method thereof, wherein the ignition device can output electric potential according to the opposite in-series connection of two thermocouples in a high-heating value gas igniting end and a low-heating value gas igniting end and the heating condition of the thermocouples, and can control the switching on or off of a control valve on a gas flow according to the effective heat electric potential generated by the thermocouples in the process of ignition, so as to avoid the danger condition that the main burner generates high fire caused by the misoperation of the gas appliance, therefore, the safe use can be guaranteed.

Disclosed herein is a combustion oscillation estimating apparatus which estimates combustion oscillation in a combustion chamber connected with a burner so that a flame is injected by the burner, the combustion oscillation estimating apparatus including an input unit which receives data including an inlet pressure of the burner, and a control unit which detects a pressure in the combustion chamber based on a shape from the burner to the combustion chamber, a temperature distribution in the combustion chamber, and a shape of the flame. The combustion oscillation estimating apparatus may improve estimation accuracy of the combustion oscillation in the combustion chamber.

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 apparatus of an Liquefied Petroleum Gas (LPG) reforming system and a method for controlling the same may include a burner provided to supply heat to a reformer, a flame temperature analyzer configured to analyze a flame temperature of the burner, an air flow rate calculator configured to determine an initial value of a flow rate of air to be supplied to the burner depending on a flow rate of fuel gas supplied to the burner, and an air flow rate controller electrically connected to the air flow rate calculator and the flame temperature analyzer and configured to select the flow rate of the air at which the flame temperature transmitted by the flame temperature analyzer reaches a maximum while changing the flow rate of the air from the initial value and to control supply of the selected flow rate of the air to the burner.

A method for predicting a combustion error type of a combustion flame. A raw signal of an error parameter of the combustion flame within a predefined time span is measured, the error parameter is adapted for determining the combustion error type. A predefined frequency range from the raw signal is extracted using a by-pass filter, where the raw signal is decomposed. The number of peaks of the predefined frequency range within the time span is counted. An actual reference value is determined by dividing the number of counted peaks by the time span. The actual reference value is compared with a nominal reference value, wherein the nominal reference value is determined by dividing a predefined number of peaks of the predefined frequency range by the time span, so that the combustion error type is predictable if the actual reference value differs to the nominal reference value.

A heater device including at least one control and/or regulating unit, which is provided to set an air ratio of a combustion process to a setpoint air ratio. It is provided that the control and/or regulating unit is provided to ascertain a power correction factor in at least one operating state and take it into consideration in the setting of the air ratio.