Abstract: A data transmission method includes requesting, by a plurality of transceivers, an authentication to a main controller, transmitting an authentication acceptance signal and separate decoding keys from the main controller to the transceivers, transmitting an encoded data bundle from the main controller to the transceivers and extracting, by each of the transceivers, some of data in the at least one encoded data bundle using the decoding key.

Abstract: A system for coating a heat transfer tube for a condenser is disclosed. The system simplifies a process of coating the heat transfer tube, and is able to uniformly coat a plurality of heat transfer tubes. In addition, the system is economically feasible in that coating solution can be reused by collecting and circulating it. Due to super-hydrophobic coating, the size of a droplet condensed on the surfaces of the heat transfer tubes coated by the system can be reduced, and a condensation heat transfer coefficient can be increased.

Abstract: A combustion liner includes air guiding caps which are respectively engaged to a mounting member and are turned in a flow direction of air so as to collect a fluid flowing around the combustion liner and feed it to the combustion liner, thereby smoothly introducing cooling air into the combustion liner. The combustion liner includes a plurality of through-holes which are formed in a surface of the combustion liner; and a plurality of air guiding caps provided on the combustion liner in plural rows arranged at regular intervals in a circumferential direction. With the above configuration, the combustion liner can instantaneously cope with irregular air flowing around the combustion liner to effectively introduce the air into the combustion liner, and can be varied in position and direction for the purpose of easy maintenance thereof.

Abstract: A heat exchanger unit includes tube units arranged within a duct unit for heat exchange with combustion gas supplied from a furnace of a thermal power plant, and heat exchanger fins longitudinally formed on outer peripheral surfaces of the tube units and having different thickness and sizes while heat exchange with the combustion gas is performed through the heat exchanger fin.

Abstract: A device for preventing a vibration of a stator core for power generator includes: a ring-shaped fastening band installed to enclose an outer circumferential surface of a stator core to support the stator core; a plurality of key bars coupled with the fastening band to be coupled with the stator core; and a plurality of elastic portions coupled with the fastening band to insulate vibrations in a diameter direction and an outer circumferential direction of the stator core, in which a diameter of the fastening band is extendible.

Abstract: Disclosed herein is a combustion oscillation estimating apparatus which estimates combustion oscillation in a combustion chamber connected with a burner so that a flame is injected by the burner, the combustion oscillation estimating apparatus including an input unit which receives data including an inlet pressure of the burner, and a control unit which detects a pressure in the combustion chamber based on a shape from the burner to the combustion chamber, a temperature distribution in the combustion chamber, and a shape of the flame. The combustion oscillation estimating apparatus may improve estimation accuracy of the combustion oscillation in the combustion chamber.

Abstract: A static mixer for mixing exhaust gases to be supplied to a selective catalytic reduction device located at the back of a boiler, includes a gas accommodation part having a first inlet and a plurality of second inlets partitioned from each other to introduce gases having different temperatures thereinto so that the gases introduced through the first inlet and the plurality of second inlets flow to a plurality of divided sections. A discharge part is provided that communicates with the gas accommodation part to collect and discharge the gases and a mixing plate part is provided, which has a plurality of unit plates disposed on the upper and lower portions of a hollow portion of the discharge part in such a manner as to have a given angle with respect to the directions of the gases discharged.

Abstract: A filtration membrane fouling index measuring method including: (a) serially connecting two filtration membranes having the same membrane properties, and sequentially passing influent water therethrough; (b) measuring the flow volume that has passed through the first of the filtration membranes; (c) measuring the flow volume that has passed through the second of the filtration membranes; (d) measuring the cumulative pass-through volume that has passed through the first or the second filtration membrane; and (e) determining the fouling index of the filtration membrane, based on the flow volume that has passed through the first filtration membrane, the flow volume that has passed through the second filtration membrane and the cumulative pass-through volume. The method eliminates pore-blocking-induced measurement errors that occur with measurement methods involving Modified Fouling Index which is a fouling index for filtration membranes.

Abstract: Disclosed is a fault signal recovery system including a data processor configured to generate a signal subset U* by removing, from a signal set U for a plurality of tags, some tags including a fault signal, and a first learning signal subset X* by removing tags disposed at positions corresponding to the some tags from a learning signal set X containing only tags of normal signals, a modeling unit configured to generate feature information F extractable from the first learning signal subset X* and recovery information P on a plurality of recovery models usable for restoring the fault signal, and a recovery unit configured to select an optimum recovery model by matching the feature of the learning signal set X with the recovery models generated through the recovery in formation P to estimate and recover normal signals for the some tags.

Abstract: Disclosed herein is a combustor capable of improving impingement cooling performance by reducing the influence of a cross-flow on a jet flow. The combustor includes a combustion liner, in which fuel sprayed from fuel nozzles of a gas turbine is mixed with compressed air and the mixture is combusted, a sleeve surrounding the outer surface of the combustion liner while being spaced apart therefrom in order to form a flow passage for compressed air, a cooling hole formed in the sleeve to introduce compressed air discharged from a compressor into the flow passage, and a first auxiliary hole formed upstream of the cooling hole in the airflow direction. Compressed air discharged from the compressor is introduced into the flow passage through the first auxiliary hole, impinges with compressed air flowing through the flow passage, and forms an air column.

Abstract: Disclosed are a fuel nozzle assembly, and a fuel nozzle module and gas turbine having the same. The fuel nozzle assembly includes a fuel nozzle, a shroud spaced apart from the fuel nozzle and defining a flow path between an inner wall and the fuel nozzle, a rim formed around the shroud to guide air, and a turning guide spaced apart from the rim to distribute the air. The turning guide includes a turning separator spaced apart from the rim to extend in a circumferential direction of the rim, and inner separators extending in a radial direction of the rim to interconnect opposite circumferential ends of the turning separator and an outer surface of the fuel nozzle. The fuel nozzle assembly prevents air pockets, and ensures uniform supply of air, thereby preventing a local increase in combustion temperature inside the fuel nozzle and reducing generation of NOx.

Abstract: The present invention relates to membrane bioreactor (“MBR”) system that includes a mechanical membrane reciprocation system to reduce or eliminate membrane fouling. The disclosed MBR system can be operated with higher flux and lower fouling than MBR systems using air scouring. Furthermore the system can remove nitrogen and phosphorous with one RAS and one or no internal recirculation line. The membrane can be reciprocated by a low RPM motor connected to a pulley via belt to rotate rotor to convert rotational motion into reciprocating motion of membrane. Various mechanical means can also be employed to create the reciprocating motion.

Abstract: A gas turbine combustor includes a liner and a transmission piece. Fuel injected in the liner from a fuel nozzle of a gas turbine mixes with compressed air. High temperature gas produced in the liner is transmitted through the transmission piece. The liner is disposed in a flow sleeve in which cooling holes are formed. The transition piece is disposed in a perforated sleeve. Compressed air supplied through holes formed in the perforated sleeve collides with the transition piece. The liner includes a cooling sleeve disposed thereon that divides the air supplied through the cooling holes of the flow sleeve and the compressed air flowing to a space portion between the liner and the flow sleeve.

Abstract: Disclosed herein is a temperature sensor assembly. The temperature sensor assembly comprises an element that is a sensing resistor, a pair of parallel lead wires connected to the element, a laminate configured to mechanically protect and surround the element and the lead wires, and lead wire drawn out parts extended and protruded from the lead wires to the outside of the laminate.

Abstract: Disclosed herein is a multibubble injection type DAF (Dissolved Air Flotation) water treatment apparatus which supplies fine bubbles injected through injection of saturated water to a lower area of a separation zone as well as a lower area of a contact zone of a flotation basin, thereby improving removal efficiency of flocs.

Abstract: The magnetic field communication system for measuring the flutter of the turbine blade in accordance with an embodiment of the present disclosure includes a sensor module placed on an outer surface of the turbine blade to sense a signal on the flutter of the turbine blade; an interface converting the signal on the flutter sensed by the sensor module into a magnet field signal to transmit it to the outside of a casing surrounding the turbine blade; and an adaptor receiving the magnetic field signal to generate a power source of the system, and analyzing the magnetic field signal to determine the degree of the flutter of the turbine blade.

Abstract: Disclosed herein are a real-time gas turbine simulation system and an execution method thereof, capable of verifying input and output signals of an actual gas turbine control system (GTCS) by simulating a gas turbine in real time to reduce trial and error in power plant operation in a gas turbine power generation system. The real-time gas turbine simulation system simulates a gas turbine to verify a GTCS for controlling a gas fuel through an actuator/sensor module and a safety integrity level (SIL) protection function through a protection module for the gas turbine, and includes a hardwire-in-the-loop (HIL) simulator connected to the actuator/sensor module and the protection module through one or more hardwires to simulate a time critical portion of the gas turbine in real time, and a network simulator connected to the GTCS through a network to simulate a non-time critical portion of the gas turbine in real time.

Abstract: A fuel cell using biogas as a fuel is provided, in which the fuel cell is supplied with a first gas required at a fuel electrode and a second gas required at an air electrode, which are separated from the biogas by a selective permeation method using a separation membrane of a gas-purification separation unit, and supplies gas discharged from the fuel cell along with the biogas to the gas-purification separation unit.

Abstract: A ball-socket type tilting pad journal bearing configured to reduce friction between a tilting pad and a pivot includes a housing body, a plurality of tilting pads disposed inside the housing body, and a plurality of pivots fixed on an inner surface of the housing body. An oil collection unit for collecting oil is provided in at least one of an outer circumferential surface of each of the pivots and a socket of each of the tilting pads.

Abstract: Provided is a capacitive deionization apparatus and a method for manufacturing the same, which capacitive deionization apparatus is enhanced in the removal efficiency for ionic substances and the fluid throughput, hence applicable to water with high salt concentration such as sea water, etc., and easy to manufacture.