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: A rotor assembly includes: coil turns each of which has a plurality of conductors stacked in a multilayer structure and includes a linear part interposed between teeth of a rotor body and formed in a longitudinal direction with ducts through which cooling fluid moves, and a curved part extending from the linear part and disposed in an arc shape on an outer circumferential surface of a spindle; and a turn insulator interposed between the conductors, and insulating the conductors from each other. The curved part may include a wave-shaped cooling path, which is formed in a longitudinal direction in a planar surface thereof, communicates with the ducts, and guides the cooling fluid to the ducts. Furthermore, through holes each of which is shorter than the duct are formed in the turn insulator at a position corresponding to the duct.

Abstract: A device for measuring the pollution index of a filtration membrane includes: a raw water supply part; a first filtration membrane; a raw water supply line; a first flow rate measuring part; a first path line; a second path line; a second filtration membrane having a filtration characteristic different from the first filtration membrane; a first path selection valve installed in the first path line in parallel with respect to the second filtration membrane so that a first measuring path from the raw water supply part to the first flow rate measuring part passes through the first filtration membrane and a second measuring path from the raw water supply part to the first flow rate measuring part successively passes through the first and second filtration membranes; and a pollution index measuring part measuring the pollution indexes of the first and second filtration membranes.

Abstract: A battery exchange station and a method of operating the battery exchange station are provided which can solve conventional problems, such as the unavailability of electricity stored in a battery, the difficulties in coping with changes in system operation, and the difficulties in utilizing renewable energy. The battery exchange station and the method of operating the battery exchange station allow for utilization of electricity stored in a battery and improve a system's operation and electricity demand conditions by charging a large-capacity battery with electricity coming from the system and providing the electricity stored in the large-capacity battery to the system.

Abstract: A high-rate sedimentation tank includes a hopper configured to be supplied with raw water including floc, at least one circular orifice pipe disposed at a lower portion of the hopper and configured to have the floc deposited therein as a sludge while passing the floc included in the raw water therethrough, and a sludge outlet configured to discharge the sludge deposited by passing through the circular orifice pipe to an outside of the hopper.

Abstract: Disclosed herein is a rotor assembly, including a cylindrical housing coupled to an outer circumferential surface of a rotor body and configured to house a coil turn therein, a supporting unit disposed in the housing and configured to prevent the coil turn from being pushed in an axial direction of a rotor, and a vane ring coupled to one end of the housing and provided with blades guiding cooling fluid to the coil turn. The rotor assembly may include: coil turns each of which is formed by stacking conductors in a multilayer structure and includes a linear part interposed between teeth, and a curved part extending from the linear part and disposed on an outer surface of a spindle; first supporting blocks which are inserted into the curved part and disposed between the conductors; and a second supporting block which is disposed between the first supporting blocks.

Abstract: There is provided a dispensing device for a welding rod dryer. The dispensing device may include a plurality of chambers configured to receive welding rod dryers; and a connection member provided in each of the plurality of chambers and configured to supply power to the welding dryers; and a door provided at an entrance of each of the plurality of chambers.

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 supercritical CO2 generation system including a compressor configured to compress a working fluid; a first heat exchanger that exchanges heat with the working fluid passing through the compressor; a high temperature turbine that expands the working fluid passing through the first heat exchanger and connects to a power generator to produce power; a second heat exchanger that exchanges heat with the working fluid passing through the compressor; a low temperature turbine that expand the working fluid passing through the second heat exchanger and connects to the power generator to produce power; a third heat exchanger between the first heat exchanger and the high temperature turbine that exchanges heat with the working fluid recuperated by the first heat exchanger; and a cooler that cools the working fluid passing through the high temperature turbine and the low temperature turbine and supplies the cooled working fluid to the compressor.

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.

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: A nonpowered mixing and coagulation basin is provided, which generates turbulences of at least two kinds inside the mixing and coagulation basin to which the raw water flows so that foreign matters contained in the raw water come into contact with each other while circulating by a water flow to be coagulated into a predetermined size, and a dissolved air floatation device using the same. The nonpowered mixing and coagulation basin has multiple stages with different packing materials and packing densities to form turbulent flows inside the raw water and control a flow speed, thereby uniformly mixing raw water and coagulant to enhance coagulation efficiency. The nonpowered mixing and coagulation basin simultaneously carries out mixing and coagulation at the front end part of the water treatment system, reduces equipment expenses by having no electric motor and agitator, and reduces power consumption because it does not use any power unit.

Abstract: An apparatus for collecting large particles, such as large particle ash generated during combustion in the thermal power plant, includes a main duct installed between an inlet duct extending in a first direction and an outlet duct extending in a second direction, and connected to the inlet duct and the outlet duct, a hopper installed in a lower portion of the main duct to collect large particles, and a flow switching section installed in the main duct in order to increase large particle collection efficiency by switching a flow direction of gas introduced from the inlet duct.

Abstract: Disclosed herein is a hybrid power generation system using a supercritical CO2 cycle, which includes a first working fluid circuit configured to produce electric power by a first working fluid heated in a boiler, and a second working fluid circuit configured to produce electric power by a second working fluid, and the first and second working fluid circuits share the boiler. The hybrid power generation system can remove an air preheater of a thermal power generation system and separate heat exchange units for exhaust gas and air after combustion, so as to utilize the heat exchange units as a heat source and a cooling source in a supercritical CO2 cycle. Consequently, it is possible to improve power generation efficiency by recovering the leakage loss of the air preheater.

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: Disclosed are a shroud impeller of a centrifugal compressor and a method of manufacturing the same where the shroud impeller includes a rotary hub connected to a driving shaft, a plurality of blades radially provided about a rotational axis of the rotary hub, and an integral shroud bonded onto top ends of the blades.

Abstract: Disclosed is a dissolved air floatation (DAF)-type pretreatment apparatus. The dissolved air floatation (DAF)-type pretreatment apparatus includes: a floatation tank for removing foreign objects of floating matter, turbid matter, or alga contained in raw water of seawater, sewage, or wastewater; a filtering compartment part provided in the floatation tank and having one surface and the other surface which are partially opened to allow treatment water obtained by primarily removing floating matter from raw water to pass therethrough; and a plurality of filtering balls confined in the filtering compartment part and including a fibrous or spongy material to filter turbid matter or floating or suspended solids remaining in the treatment water introduced to the interior of the filtering compartment part.

Abstract: A pump for supplying a cryogenic liquid coolant in accordance with the present invention includes: a housing having an inlet port for introducing a cryogenic liquid coolant, an outlet port for discharging the cryogenic liquid coolant introduced through the inlet port, and a chamber for connecting the inlet port and the outlet port; an impeller rotatably retained in the housing for introducing the cryogenic liquid coolant through the inlet port and discharging the same through the outlet port; and a vapor exhausting part provided in the housing for exhausting vapor generated from the cryogenic liquid coolant.

Abstract: A wind farm includes a plurality of wind power generation units each including a rotation axis, a hub, at least two airfoil blades, a pitch control system and a yaw control system. At least two first-direction wind power generation units are spaced apart longitudinally from each other along a prevailing energy wind direction at a predetermined interval and whose blades are rotated in a same direction. At least one second-direction wind power generation unit that is located between the first-direction wind power generation units and has blades rotating in an opposite direction to a rotational direction of the blades of the first-direction wind power generation units.

Abstract: Disclosed is a dissolved air flotation (“DAF”) device. The DAF device creates an elongated separation zone to permit agglomerated impurities to be more effectively removed from the influent. A header is included at the lower extent of the separation zone to collect the clarified effluent. In one possible embodiment, a collection channel with a series of intake apertures is connected to the header. In another embodiment, intake apertures are located along the header. In either embodiment, the header reduces the rate at which the effluent is collected and, thereby, reduces the inadvertent collection of agglomerated impurities.