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THERMOACOUSTIC ENERGY CONVERTING ELEMENT PART, THERMOACOUSTIC ENERGY CONVERTER, AND METHOD OF MANUFACTURING THERMOACOUSTIC ENERGY CONVERTING ELEMENT PART
THERMOACOUSTIC ENERGY CONVERTING ELEMENT PART, THERMOACOUSTIC ENERGY CONVERTER, AND METHOD OF MANUFACTURING THERMOACOUSTIC ENERGY CONVERTING ELEMENT PART
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机译：热声能量转换元件部分，热声能量转换器和制造热声能量转换元件部分的方法
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摘要
The thermoacoustic energy converting element part includes a plurality of through holes extending along a uniform direction to penetrate a body of the thermoacoustic energy converting element part to form traveling paths of acoustic waves. The element part includes a wall surrounding each of the through holes to extend in an extending direction of the through hole and configured to exchange heat between the fluid. The through hole includes a through hole that has a hydraulic diameter of 0.4 mm or smaller, and an open area ratio of the through holes is 60% or higher. A first layer and a second layer are alternately provided on the wall of the thermoacoustic energy converting element part along the extending direction. A porosity of the first layer is 0% or smaller than a porosity of the second layer. The thermal conductivity of the structure of the thermoacoustic energy converting element part along the extending direction is 2 W/m/K or lower. If a metal plate is provided as the first layer, a plurality of the metal plates having a roughened main surface is layered and bonded by thermocompression bonding to manufacture the thermoacoustic energy converting element part.
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机译：热声能量转换元件部分包括沿均匀方向延伸以穿透热声能量转换元件部分的主体以形成声波的传播路径的多个通孔。元件部分包括壁，该壁围绕每个通孔以在通孔的延伸方向上延伸并且构造成在流体之间交换热量。通孔包括水力直径为0.4mm或更小的通孔，并且通孔的开口面积率为60％以上。第一层和第二层沿延伸方向交替地设置在热声能量转换元件部分的壁上。第一层的孔隙率是第二层的孔隙率的0％或更小。热声能量转换元件部分的结构沿延伸方向的热导率为2W / m / K或更低。如果将金属板设置为第一层，则将具有粗糙化的主表面的多个金属板层叠并通过热压接合来接合，以制造热声能量转换元件部。
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