Abstract:
본 발명은 가스터빈 로터에 구비되는 블레이드의 냉각성능을 향상시킬 수 있는 블레이드의 내부 유로 구조에 관한 것이다. 이를 위한 본 발명에 따른 블레이드의 내부유로 구조는, 블레이드의 후연면(trailing surface)을 따라 배열되는 복수의 제1유로; 상기 제1유로들 사이를 구획하는 하나 이상의 제1격벽; 상기 제1격벽에 의해 구획되며 블레이드의 전연면(leading surface)을 따라 배열되는 복수의 제2유로; 상기 제1격벽과 교차하도록 배치되어 상기 제1유로들과 제2유로들 사이를 구획하는 제2격벽;을 포함하여 구성되되, 상기 후연면에 연접하여 배열되는 제1유로들은 블레이드의 하단에서 상단으로 향하는 유동방향을 갖도록 하고, 상기 전연면에 연접하여 배열되는 제2유로들은 블레이드의 상단에서 하단으로 향하는 유동방향을 갖도록 형성한 것을 특징으로 한다.
Abstract:
The present invention relates to a cooling pipe with an inlet, where a coolant fluid flows in, and an outlet, where the coolant fluid flows out, having a zigzag channel and to a cooling pipe which includes a barrier part having barriers to fluently provide the fluid without having a stagnant portion where the flow path of the coolant fluid changes. According to an embodiment of the present invention, the cooling pipe is prevented from a flow separation and a corner vortex in the rotating zone of the flow, so as to uniformize the heat conduction and cooling performances of the cooling pipe.
Abstract:
가스터빈 연소기가 개시된다. 본 발명의 일 실시예에 따른 가스터빈 연소기는 연소실 라이너의 외측면에 형성된 딤플(dimple); 및 상기 딤플의 내측 중앙에 개구된 중앙 홀과, 상기 중앙 홀과 이격되어 딤플의 내측에 위치되고 상기 중앙 홀의 개구된 면적에 비해 상대적으로 큰 면적을 가지고 상기 딤플의 내부 기울기와 대응되며 상기 딤플로 유입된 공기의 이동 방향과 반대편 위치에 개구된 사이드 홀이 형성된 홀을 포함한다.
Abstract:
열전달 소자가 개시된다. 본 발명의 일 실시예에 따른 열전달 소자는 기판 위에 설치되며 열전달 표면을 확장하고, 버블 시드(bubble seed)역할을 하는 제1구조물; 및 상기 제1구조물 위에 설치되며, 초친수성 표면을 형성하는 제2구조물을 포함한다.
Abstract:
PURPOSE: A multi-vortex generating device and a high-end heat exchanger using the same are provided to enhance heat transmission properties in portions of the inside of a dimple and around a flat plate and to minimize a pressure loss by controlling properties of a vortex generated in the dimple with a vortex generating device. CONSTITUTION: A multi-vortex generating device comprises a dimple unit and a projected unit. The dimple unit is formed in a heat exchanging surface of a flow path. The projected unit generates a lateral axis vortex capable of reducing stagnation-flow domain inside of the dimple. The dimple unit and projected unit are repetitively formed in the heat exchanging surface. The projected unit has a concavo-convex shape.
Abstract:
PURPOSE: A device for cooling and heating a battery pack of a noncontact electromagnetic inductive charging method and a method for generating power by recovering waste heat from the battery pack using the same are provided to improve the efficiency of a system by effectively recovering waste heat from a battery. CONSTITUTION: A battery pack(1) supplies and stores power. A thermoelectric element(2) is installed in the battery pack. The thermoelectric element changes heat generated from the battery pack into electric energy. A DC power supply unit is connected to the thermoelectric element. The DC power supply unit supplies DC power.
Abstract:
PURPOSE: A joint assembly for a gas turbine combustor and a manufacturing method thereof are provided to improve the durability of the joint assembly by welding a contact part of an inner ring and a connection ring. CONSTITUTION: A joint assembly for a gas turbine combustor comprises a connection ring(110) and an inner ring(120). The connection ring has a channel part(114) for flowing cooling air. The inner ring is coupled to the outer side of the connection ring. The inlet side of the inner ring is arranged to be in a line with the inner wall of the channel part. The contact part of the connection ring and the inner ring is welded.
Abstract:
PURPOSE: A cooling device for protecting a gas turbine combustor and a transfer pipe and a method of embodying the same are provided to reduce damage to the joint between a combustor liner and an guide pipe by relieving the radial expansion pressure. CONSTITUTION: A cooling device for protecting a gas turbine combustor comprises a combustor liner(100), an guide pipe(200) and a cooling member(300). The guide pipe conducts high-temperature combustion gas provided from the combustor liner to a turbine space. The cooling member is interposed between the outer end of the combustor liner and the inner end of the guide pipe to form a plurality of unit paths. The combustor liner and the guide pipe have a double pipe structure in which outer tubes(120,220) cover inner tubes(110,210). In the double pipe structure, air inlet holes(122,222) are formed between the inner and outer tubes.