The present disclosure deals with the regulation of fluid flows in the presence of turbulence. The teachings thereof may be embodied in regulating a fluid in a combustion device. For example, a method for regulating a burner device may include: requesting a flow of a fluid through a feed duct; assigning the requested flow to a setting of a first actuator; transmitting a first signal to set the first actuator; generating a mass flow signal representing an actual flow through the side duct; correlating the second signal to an actual value of the flow through the side duct; correlating the requested flow through the feed duct to a required flow through the side duct; generating a regulation signal with the regulator for the second actuator as a function of the actual value of the flow through the side duct and the requested value of the flow through the side duct; and transmitting the generated regulation signal to the second actuator.

A method for controlling a fuel-oxidizer mixture in a premix gas burner includes: receiving a flame signal representing the presence of a flame deriving from the combustion of a fuel of a first predetermined type or a second predetermined type inside a combustion cell; accessing fuel data representing the fact that the gas fuel belongs to the first type or the second type; generating drive signals to control a gas flow regulating valve that supplies gas to the burner and to control a rotation speed of a fan configured to take in oxidative air; sending the drive signals to the gas flow regulating valve and to a motor connected to the fan. A memory unit contains first regulation data and second regulation data and is programmed to generate the drive signals based on the first regulation data or on the second regulation data, depending on the fuel data.

A device for controlling a fuel-oxidizer mixture for a premix gas burner includes: an intake duct, including an inlet, a mixing zone, and a delivery outlet; an injection duct; a gas regulating valve, located along the injection duct; a fan, located in the intake duct to generate therein a flow of the oxidizer fluid or of the mixture; a control unit, configured for generating drive signals; a sensor unit, configured to detect a first differential pressure, between a first detecting section, located in the intake duct upstream of the mixing zone in the direction of inflow and a second detecting section, located in the intake duct downstream of the mixing zone in the direction of inflow, and configured to detect a second differential pressure, between the first detecting section and a third detecting section, located in the injection duct between the gas regulating valve and the mixing zone.

Various embodiments include a method for regulating a burner appliance comprising a combustion chamber, an air supply duct with an actuator to adjust the air supply, and a fuel supply duct with a fuel actuator to adjust the fuel supply. The method comprises: determining the value of the air supply V L; determining the value of an air ratio λ; providing an individual scalar fuel parameter h; calculating the power output P_ist of the appliance based on the air supply V L, the air ratio λ, and the individual scalar fuel parameter h using P_ist=h/λ.Math.V L; and regulating the burner appliance with the fuel actuator and the air actuator until the actual value reaches the target value.

A mobile disaster crematory and method for cremating a body or other material are provided. The mobile disaster crematory comprises a housing, a front loading door in communication with an operator loading area, an exterior operator access door in communication with an equipment access room, and an exterior operator access control panel. An interior refractory lining defines a primary cremation chamber in fluid communication with a secondary environmental control chamber for oxidation of emissions to be conveyed from a crematory exhaust stack. An air intake system comprising valved air pipes delivers air into the chambers. Primary and secondary chamber burners are operably connected to temperature sensors, and to a valved fuel pipe and fuel supply, all operably connected to the exterior access control panel operably by a human operator. Power may be supplied by a local utility or a backup generator located in the crematory housing.

In an example method for operating a gas burner appliance, during burner-on-phases, a gas/air mixture having a defined mixing ratio of gas and air is provided to a burner chamber. The gas/air mixture is provided by a mixing device that mixes an air flow with a gas flow. The air flow is provided by a fan in such a way that the fan speed of the fan depends on a desired burner load. During burner-on-phases, the combustion quality is monitored on the basis of a signal provided by a combustion quality sensor. The defined mixing ratio of gas and air of the gas/air mixture can be calibrated on the basis of the signal provided by the combustion quality sensor.

A method for regulating a gas mixture formed from a gas and a fuel gas in a fuel gas-operated heating appliance, wherein the gas mixture is created by providing and mixing a gas quantity by way of a first control element and a fuel gas quantity by way of a second control element, wherein a microthermal gas sensor and a gas mixture sensor are used and sensor signals are relayed to a controller, and wherein upon change in the detected sensor signal [of the] gas sensor the newly detected sensor signal of the gas sensor is compared to reference values which have been measured in the laboratory and saved in a table of values in the controller and from this a target value of the sensor signal of the gas mixture sensor is determined without a mixture ratio of the gas mixture composed of fuel gas and gas being changed.

In a gas hot water heater, changes of the signal output of an A/F sensor are calibrated in the atmosphere, in which the A/F sensor detects an oxygen concentration in a combustion tube. The gas supplied via a gas supply pipe is injected, together with in-taken air, into a combustion tube, which is incorporated in a hot water supply tank, via an injection unit. A proportional valve controls a combustion state in the combustion tube based on the detected oxygen concentration to thereby heat water supplied in the hot water supply tank. A purging process is performed to supply air into the combustion tube, at a timing between an extinguishment operation first performed after the ignition the gas mixture in the combustion tube and a re-ignition operation. Changes of signal output characteristics of the A/F sensor are subject to the calibration after the purging process.

A fluid heating system intended for use in recreational vehicles that circulates glycol in a system loop with various heat sources and other devices that distribute this heat to an enclosure or a domestic water system. It has a system controller operationally connected to a remove tactile display unit that allows for the input of the operation parameters to the system controller. The control unit is operatively connected for data and signal transfer to the user's cell phone via a non-internet connected localized wi-fi network. This provides the user with system status information, fault codes and allows selected operational functions and resets to be remotely initiated that heretofore required local manipulation. It also incorporates altimeter to allow the furnace controller to maximize its burn efficiency.

A controller for use in a gas appliance system includes a circuit board, a plurality of connectors and a processor mounted on the circuit board. The processor controls operation of the gas appliance using, in part, at least one connector of the plurality of connectors and control settings for an intermittent pilot (IP) system in response to a user selection to configure the controller to control an IP system, and controls operation of the gas appliance using, in part, at least one connector of the plurality of connectors and control settings for a direct spark ignition (DSI) system in response to a user selection to configure the controller to control a DSI system.