A steam generator for a power plant sub-system, having at least one evaporator tube through which a flow medium can flow, as well as a number of heat exchanger surfaces formed by the surface of the evaporator tube, wherein at least parts of the/each heat exchanger surface are provided with a catalytically active coating for the exothermic decomposition of hydrocarbons. By means of the catalytic coating of the heat exchanger surfaces of the evaporator tubes, an increased heat requirement calculation can be carried out, without also having to accept the formation of unwanted harmful substances inside the steam generator.

A power conversion system for converting thermal energy from a heat source to electricity. The system includes a chamber including a shroud having an inlet and an outlet and defining an internal passageway through which an environmental working fluid passes. The chamber includes a source heat exchanger disposed in the internal passageway. The source heat exchanger is configured to receive a heat transmitting element associated with the heat source which is external to the chamber, and to transfer heat energy from the heat transmitting element to the working fluid. The system also includes a compressor adjacent the inlet, an expander adjacent the outlet, and a generator. The compressor can suction the working fluid into the system from an external environment. The expander can convert thermal energy of the heated working fluid into rotative energy. The generator can convert the rotative energy into electricity.

Monitoring of conductivity within a steam generating system may proceed in real time and without interruption of the steam generating system by use of a boron doped diamond based electrochemical band sensor placed within the steam generating system. The boron doped diamond based electrochemical band sensor has a diamond body and a plurality of boron doped diamond band electrodes disposed within the diamond body. At least a portion of each of the plurality of boron doped diamond band electrodes is doped with boron to provide metallic conduction.

Disclosed herein is a method including: performing eddy current testing on a steam generator tube material by using a motorized rotating pancake coil (MRPC) probe, evaluating a test signal measured using the eddy current testing, and predicting the corrosion rate of the steam generator tube material from a noise value in the MRPC inspection signal of the steam generator tube obtained from the evaluating. When the prediction method of a corrosion rate of a steam generator tube according to the present invention is used, the steam generator tube material which has low corrosion rate can be selected at the material selecting step because the corrosion rate can be predicted and the criterions on the corrosion rate of the steam generator tube can be established as the requirements through an eddy current MRPC noise inspection of the steam generator tube material.

The present invention relates to a steam generator system (1000), a control method and a household appliance. The steam generator system (1000) comprises: a steam generator (100) comprising a housing (1) having a water inlet (13) and a steam outlet (14), and a heating element (3) provided in the housing (1); a water pump (300) connected between a water tank (200) and the water inlet (13); a water softener (400), wherein the water tank (200), the water pump (300) and the water inlet (13) are in communication with each other to form a water inlet pipeline, and the water softener (400) is connected to the water inlet pipeline in series.

The present invention relates to a steam generator system (1000), a control method and a household appliance. The steam generator system (1000) comprises: a steam generator (100) comprising a housing (1) having a water inlet (13) and a steam outlet (14), and a heating element (3) provided in the housing (1); a water pump (300) connected between a water tank (200) and the water inlet (13); a water softener (400), wherein the water tank (200), the water pump (300) and the water inlet (13) are in communication with each other to form a water inlet pipeline, and the water softener (400) is connected to the water inlet pipeline in series.

A method for capturing carbon dioxide from a flue gas includes (i) removing moisture from a flue gas to yield a dried flue gas; (ii) compressing the dried flue gas to yield a compressed gas stream; (iii) reducing the temperature of the compressed gas stream to a temperature T.sub.1 using a first heat exchanger; (iv) reducing the temperature of the compressed gas stream to a second temperarature T.sub.2 using a second heat exchanger stream, where T.sub.2<T.sub.1 and at least a portion of the carbon dioxide from the compressed gas stream condenses, thereby yielding a solid or liquid condensed-phase carbon dioxide component and a light-gas component; (v) separating purities the condensed-phase component from the light-gas component to produce a condensed-phase stream and a light-gas stream; and (vi) using at least a portion of the condensed-phase stream and/or the light-gas stream in the second heat exchanger.

A welding method for making cladding or buttering on an inner surface of a base material, an inner surface of an opening portion formed in the base material, and the cut surface formed in such a manner that the cut surface is continuous from the inner surface of the base material to the inner surface of the opening portion, wherein the welding method includes a step of forming a protruding portion on the base material in advance, the protruding portion including a temporary welding surface extending toward the center of the opening portion in such a manner that the temporary welding surface is uniformly continuous to the inner surface of the base material and including the cut surface buried therein.

Systems enhance stand pipe alignment and security with braces docking to the stand pipes. A link connects pairs of braces so the braces and stand pipes docked thereby cannot move relative to each other when fully secured. Partially securing braces allows adjustment of the braces and distance between the same and thus stand pipe position. Fully securing the braces makes the entire system rigid without need for a tie bar. Braces and links can be installed and secured to the stand pipes and among each other at an axial position from above the stand pipes, so that overhead, simple tooling may be used. A crimp nut or other resilient connector may be used to secure the systems from that single dimension with simple tooling. Any number of braces, joining to any number of other braces, may be used in the system, and several systems may be used at various levels.

A manipulator configured to navigate a heat exchanger including a plurality of tubes extending through a tubesheet is disclosed herein, the manipulator including a first end effector, a second end effector, and an articulation assembly. The first end effector is configured to accommodate an instrument configured to service the heat exchanger and includes a first actuator configured to extend a first gripper into a tube of the plurality of tubes. The second end effector includes a second actuator configured to extend a second gripper into a tube of the plurality of tubes. The first and second gripper are configured to secure the manipulator to the tubesheet, and, when the second gripper is securing the manipulator to the tubesheet, the articulation assembly is configured to enable the first end effector to move relative to the second end effector in a plane that is parallel to the tubesheet.