The invention relates to a heating system component for a heating system for heating a fluid medium, with a carrier unit, and a heating unit coupled to said carrier unit, and a controller; wherein said carrier unit comprises a wet side and a dry side, wherein said wet side corresponds to a surface of said carrier unit configured to be in contact with said fluid medium, wherein said dry side is located on a surface opposite to said wet side. A temperature sensor, in particular an NTC thermistor, is effectively in thermal contact with at least a part of an upper surface of said dry side of the carrier unit, the method comprising: receiving a starting signal at the controller for starting the heating system component; carrying out a test routine for at least the at least one temperature sensor; and in case the test routine is not successful: entering a safe state of the heating system component.

A flash steamer water control system for use in connection with the flash-steam cooking of food items comprises a heated platen, an electric power supply for supplying electrical power to the heated platen, a water discharge mechanism for discharging water onto the heated platen such that the water discharged onto the heated platen will be flashed into steam, and a control system operatively connected to the water discharge mechanism for controlling the water discharge mechanism so as to permit the water discharge mechanism to discharge water onto the heated platen only when the temperature level of the heated platen is at or above a predetermined temperature level so as to effectively guarantee that the water, discharged from the water discharge mechanism onto the heated platen, will be flashed into steam throughout a predeterminedly timed flash-steamed cooking cycle without overwhelming the heated platen and flooding the same.

A steam generator has a water container and an upper heating device and a lower heating device, a first temperature detection device covering a temperature detection area including the area covered by the two heating devices, a control device for monitoring and evaluating the first temperature detection device and for controlling the activation state of the two heating devices. A flat first temperature detection device covers the outside of the container, and a second spot-like temperature sensor is located on the water container in a region of an upper border of the upper heating device. Both temperature detection devices are used to activate and deactivate the two heating devices such that at first the lower heating device is activated to start generating steam as fast as possible.

A steam generator has a water container and an upper heating device and a lower heating device, a first temperature detection device covering a temperature detection area including the area covered by the two heating devices, a control device for monitoring and evaluating the first temperature detection device and for controlling the activation state of the two heating devices. A flat first temperature detection device covers the outside of the container, and a second spot-like temperature sensor is located on the water container in a region of an upper border of the upper heating device. Both temperature detection devices are used to activate and deactivate the two heating devices such that at first the lower heating device is activated to start generating steam as fast as possible.

A steam vaporizer assembly includes an internal steam generator having a vessel configured to hold water, a vaporizer unit having a heating element configured to heat the water to generate saturated steam; and a controller configured to: cause the heating element to heat the water to a stand-by temperature; and while maintaining a water level of the water in the vessel between two control points: maintain the water in the vessel at the stand-by temperature until steam generation is required, and when steam generation is required, heating the water in the vessel from the stand-by temperature to a temperature at or above a vaporization temperature of the water using a heating element, to generate the steam.

A steam vaporizer assembly includes an internal steam generator having a vessel configured to hold water, a vaporizer unit having a heating element configured to heat the water to generate saturated steam; and a controller configured to: cause the heating element to heat the water to a stand-by temperature; and while maintaining a water level of the water in the vessel between two control points: maintain the water in the vessel at the stand-by temperature until steam generation is required, and when steam generation is required, heating the water in the vessel from the stand-by temperature to a temperature at or above a vaporization temperature of the water using a heating element, to generate the steam.

The present invention provides for a system and method for determining saturated steam quality. The system includes a liquid inlet in communication with a pre-boiler stream of liquid creating a liquid inlet flow. An inlet chamber is in communication with the liquid inlet flow and has a inlet temperature compensated conductivity probe that is submerged in the liquid inlet flow and configured to measure the conductivity of the inlet liquid. A liquid outlet is in communication with a post-boiler outlet flow creating an outlet liquid flow. An outlet chamber is in communication with the outlet liquid flow. The outlet chamber has an outlet temperature compensated conductivity probe that is submerged in the outlet liquid flow and configured to measure the conductivity of the outlet liquid. A processor is in communication with the inlet and outlet temperature compensated conductivity probes and configured to calculate steam quality. The processor is further in communication with boiler control system wherein boiler control system is configured to adjust boiler firing rate and/or liquid flow rate based on the calculated steam quality. The method includes steps to measure the conductivity of the liquid inlet flow and outlet liquid flow and to calculate the saturated steam quality.

The present invention provides for a system and method for determining saturated steam quality. The system includes a liquid inlet in communication with a pre-boiler stream of liquid creating a liquid inlet flow. An inlet chamber is in communication with the liquid inlet flow and has a inlet temperature compensated conductivity probe that is submerged in the liquid inlet flow and configured to measure the conductivity of the inlet liquid. A liquid outlet is in communication with a post-boiler outlet flow creating an outlet liquid flow. An outlet chamber is in communication with the outlet liquid flow. The outlet chamber has an outlet temperature compensated conductivity probe that is submerged in the outlet liquid flow and configured to measure the conductivity of the outlet liquid. A processor is in communication with the inlet and outlet temperature compensated conductivity probes and configured to calculate steam quality. The processor is further in communication with boiler control system wherein boiler control system is configured to adjust boiler firing rate and/or liquid flow rate based on the calculated steam quality. The method includes steps to measure the conductivity of the liquid inlet flow and outlet liquid flow and to calculate the saturated steam quality.

A steam-temperature control device for a gas- and steam turbine plant, including a feed water line, a feed-water control valve located in the feed water line and a water injection line which branches off from the feed water line upstream of the feed-water control valve in the flow direction of said water and which opens into an injection cooler is provided. The steam-temperature control device is characterized in that a pre-heating device for the injection water is connected in the water injection line. A method for controlling the steam temperature in a gas- and steam turbine plant is also provided.

An apparatus for managing water levels in a boiler of a coffee machine is provided. The boiler is connected to a control circuit and includes a first probe arranged, in use, to measure a first water level and at least a second probe arranged to measure a second water level, or working level of the apparatus, higher than the first level. apparatus is arranged to supply steam or hot water through respective ducts connected to the boiler and controlled by respective valves. The first probe is configured for measuring a draining level of the boiler on the basis of draining commands generated by the control circuit and for automatically enabling water replacement in the boiler.