Abstract: Various embodiments include a method for estimating a flow value for fuels of different compositions supplied to a combustion device using a mass flow sensor. An example method includes: recording a first temperature of the fuel using a first resistor element; determining a compensable value with a heat output signal of a heating element; and estimating a flow value for the fuel supply by compensation of the value compensable as a function of the first temperature and/or as a function of the fuel composition and/or as a function of the fuel gas composition on the basis of at least one saved mapping rule dependent on the first temperature and/or on the fuel composition and/or on the fuel gas composition and on the basis of a calibration characteristic curve saved for a reference gas.

Abstract: Various embodiments include a combustion apparatus. An example apparatus includes: a burner; a side duct; and a feed duct. The side duct comprises an inlet, an outlet, and a mass flow sensor between the inlet and the outlet of the side duct. The mass flow sensor is configured to detect a signal corresponding to an amount of flow of a fluid through the side duct. The side duct comprises a first portion and a second portion. The first portion of the side duct comprises the mass flow sensor. The first portion of the side duct is arranged within the feed duct.

Abstract: A valve comprising a controller; a heater; and two temperature transducers. The controller sends a close signal to the actuator and records a first temperature signal from the first temperature transducer, then controls the heater to attain a first temperature set point at the second temperature transducer. The controller records a time or an amount of energy required to attain the first temperature set point, then sends an open signal. The controller records a second temperature, controls the heater to attain a second set point at the second transducer, and records a time or an energy required to attain the second temperature set point. The controller classifies a fluid inside based on the first value and a flow rate of the fluid through the fluid path based on the second value.

Abstract: 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.

Abstract: A valve comprising a controller; a heater; and two temperature transducers. The controller sends a close signal to the actuator and records a first temperature signal from the first temperature transducer, then controls the heater to attain a first temperature set point at the second temperature transducer. The controller records a time or an amount of energy required to attain the first temperature set point, then sends an open signal. The controller records a second temperature, controls the heater to attain a second set point at the second transducer, and records a time or an energy required to attain the second temperature set point. The controller classifies a fluid inside based on the first value and a flow rate of the fluid through the fluid path based on the second value.

Abstract: Various embodiments include a valve device comprising: a valve; a flow channel in the valve; a first sensor configured to record a first signal indicative of local fluid velocity in the flow channel; a second sensor configured to record a second signal indicative of a temperature of a fluid in the flow channel; and a control unit configured to determine a flow rate through the valve based on the first signal the second signal. The second sensor is moveably arranged in the flow channel.

Abstract: The present disclosure deals with the measurement of flows of a fluid in a combustion device. In particular embodiments, the teachings may be employed in the measurement of flows of fluids such as air in the presence of turbulence. For example, a combustion device may include: a burner; a side duct; and a feed duct. The side duct may include a mass flow sensor and a flow resistance element. The mass flow sensor detects a mass flow through the side duct. The flow resistance element subdivides the side duct. A connector of the feed duct comprises a Pitot probe. A first section of the Pitot probe projects into the feed duct and a sub area facing towards the outlet of the feed duct of the first section of the Pitot probe comprises the inlet of the Pitot probe.

Abstract: The present disclosure deals with the measurement of flows of a fluid in a combustion device. For example, a combustion device may include a burner; a combustion chamber; a side duct; and a feed duct with a connector for the side duct including a mass flow sensor and a flow resistance element. The side duct and the feed duct have a fluid connection to one another. The mass flow sensor senses a mass flow through the side duct. The resistance element subdivides the side duct and includes an admittance surface. There is an outer area. The mass flow sensor projects into the side duct. The outlet of the side duct lets the fluid flow out of the side duct directly into the combustion chamber or directly into the outer area.

Abstract: A method is disclosed for diagnosing a valve assembly having valve members serially arranged along a flow channel of the valve assembly connecting at least one inlet and at least one outlet of the valve assembly. All of the serially arranged valve members of the valve assembly are opended to allow fluid to flow through the flow channel. The flow of fluid through the flow channel is measured by at least one sensor. At least one of the valve members is openend, and at least one sensor checks for fluid leakage caused by at least one faulted valve member. The at least one sensor may include a flow sensor, e.g., a mass flow sensor.

Abstract: The present disclosure deals with the measurement of flows of a fluid in a combustion device. In particular embodiments, the teachings may be employed in the measurement of flows of fluids such as air in the presence of turbulence. For example, a combustion device may include: a burner; a side duct; and a feed duct. The side duct may include a mass flow sensor and a flow resistance element. The mass flow sensor detects a mass flow through the side duct. The flow resistance element subdivides the side duct. A connector of the feed duct comprises a Pitot probe. A first section of the Pitot probe projects into the feed duct and a sub area facing towards the outlet of the feed duct of the first section of the Pitot probe comprises the inlet of the Pitot probe.

Abstract: 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.

Abstract: The present disclosure deals with the measurement of flows of a fluid in a combustion device. For example, a combustion device may include a burner; a combustion chamber; a side duct; and a feed duct with a connector for the side duct including a mass flow sensor and a flow resistance element. The side duct and the feed duct have a fluid connection to one another. The mass flow sensor senses a mass flow through the side duct. The resistance element subdivides the side duct and includes an admittance surface. There is an outer area. The mass flow sensor projects into the side duct. The outlet of the side duct lets the fluid flow out of the side duct directly into the combustion chamber or directly into the outer area.

Abstract: A method is disclosed for diagnosing a valve assembly having valve members serially arranged along a flow channel of the valve assembly connecting at least one inlet and at least one outlet of the valve assembly. All of the serially arranged valve members of the valve assembly are opended to allow fluid to flow through the flow channel. The flow of fluid through the flow channel is measured by at least one sensor. At least one of the valve members is openend, and at least one sensor checks for fluid leakage caused by at least one faulted valve member. The at least one sensor may include a flow sensor, e.g., a mass flow sensor.