| 摘要 |
PURPOSE:To form the lamination type heat exchanger having a high heat transfer coefficient by a method wherein a thin plate, supported by the side surface provided in a groove, is provided with raised slotted sections to restrain the developments of speed and temperature boundary layers and coincide the direction of disturbance of flow with the direction of movement of heat. CONSTITUTION:The thin plate 10, supported by the side walls of a heat exchanging plate 12, divides a flow path 9 into two divisions and is provided with the raised slotted sections 11 while the flow of fluid is changed to the direction of wall surfaces or heat transfer surfaces and the development of the temperature boundary layer may be restrained. On the other hand, the heat transfer coefficient is increased very much at a part where the fluid collides against the wall surface and, therefore, the average heat transfer coefficient in the whole of the flow path may be improved. |
