A vehicle is provided with an engine having an exhaust gas system comprising a muffler body containing a valve controlling exhaust gas flow through a tuning tube. The vehicle has an expander, a condenser, a pump, and an evaporator in sequential fluid communication in a closed loop containing a working fluid. The evaporator is positioned within the body and supports the valve and tuning tube therein, with the evaporator in thermal contact with exhaust gas and the working fluid.

A method for preventing formation of droplets in a heat exchanger, in which a second medium transfers heat to a first. The method is performed by a controller which receives different temperature values (T.sub.1, T.sub.2, T.sub.3) and a pressure (P) value to be used for calculating a boiling point temperature value (T.sub.B) and determining a first temperature difference (ΔT.sub.1) and a second temperature difference (ΔT.sub.2). Generating a flow control signal, for controlling the flow of the first medium into the heat exchanger, based on the first temperature difference (ΔT.sub.1), the second temperature difference (ΔT.sub.2) and the first temperature value T.sub.1 and sending the flow control signal to a regulator device for controlling the flow of the first medium in the heat exchanger.

A hydrostatic test device for a turbine may include a plurality of feeding holes having a groove part formed with a greater diameter. Sealing members may be fitted into feeding holes in upper or lower casings of a turbine to seal the feeding holes.

A device management system includes a storage unit which stores, in advance and in correlation with device identification information set in each steam controller, location information indicating a location of each steam controller. The storage unit further stores in advance work patterns for the steam controller according to a classification based on a device type and an installation state of the steam controller. The system further includes a data extraction unit configured to extract from the storage unit the location information from the device identification information based on detection information. The data extraction unit is further configured to extract a corresponding work pattern from the device type and the installation state specified from the device identification information. A work information generation unit is included for generating work information including the extracted location information and work pattern for each work-target device.

An energy recovery device includes a plurality of heat exchangers connected in parallel with each other into which a plurality of heat sources flow, an expander for expanding a working medium, a dynamic power recovery unit, a condenser, a pump for sending the working medium which has flown out from the condenser to the plurality of heat exchangers, and a regulator for regulating inflow rates of the working medium flowing into the plurality of heat exchangers. The regulator regulates the inflow rates of the liquid phase working medium flowing into the plurality of respective heat exchangers such that a difference of temperatures or a difference of degrees of superheat of the gas phase working medium which has flown out from the plurality of respective heat exchangers falls within a certain range. Thereby, heat energy can be efficiently recovered from the plurality of heat sources having temperatures different from each other.

Embodiments of the present disclosure include a method for controlling a power generation system, the method including: calculating, during operation of the power generation system, a target water level within a pressure vessel of the power generation system, the pressure vessel receiving a feedwater input and generating a steam output; calculating a flow rate change of the steam output from the pressure vessel; calibrating the target water level within the pressure vessel based on the output from mass flux through the pressure vessel, the mass flux through the pressure vessel being derived from the at least the feedwater input and the steam output; and adjusting an operating parameter of the power generation system based on the calibrated target water level within the pressure vessel.

The present invention relates to a steam sample concentrator and conditioning (SSCC) system. The SSCC finds use in concentrating impurities carried in steam (e.g., used in power generation and other industrial processes) and facilitating steam analysis.

The present invention relates to a system for eliminating the presence of droplets in a first medium of a heat exchanger. The heat exchanger has an inlet port and an outlet port for the first medium as well as an inlet port and an outlet port for a second medium. The system comprises (a) a device for regulating the flow of the first medium into the heat exchanger, (b) a first temperature sensor array for measuring the temperature of the first medium exiting the heat exchanger, and (c) a controller for regulating flow of the first medium into the heat exchanger. The system further comprises a second temperature sensor array for measuring the temperature of the second medium entering the heat exchanger. The controller regulates the flow of the first medium into the heat exchanger based on data received from the first temperature sensor array and second temperature sensor array.

A method for preventing formation of droplets in a heat exchanger, in which a second medium transfers heat to a first. The method is performed by a controller which receives different temperature values (T.sub.1, T.sub.2, T.sub.3) and a pressure (P) value to be used for calculating a boiling point temperature value (T.sub.B) and determining a first temperature difference (ΔT.sub.1) and a second temperature difference (ΔT.sub.2). Generating a flow control signal, for controlling the flow of the first medium into the heat exchanger, based on the first temperature difference (ΔT.sub.1), the second temperature difference (ΔT.sub.2) and the first temperature value T.sub.1 and sending the flow control signal to a regulator device for controlling the flow of the first medium in the heat exchanger.

A control system is provided for a turbine valve. The turbine valve has a first coil and a second coil to control or sense movement of a mechanical valve positioner. Two valve positioners are provided with each valve positioner having two drive circuits to drive the first and second coils. Switches are provided such that only one drive circuit is connected to each coil at a time. The control system may also include a hydraulic pilot valve section and a main hydraulic valve section. Feedbacks are used to determine a pilot valve error and a main valve error which are combined to determine a turbine valve error. The turbine valve error is repeatedly determined to minimize the error.