| 主权项 |
1. A heat/acoustic wave conversion component having a first end face and a second end face, comprising a partition wall that defines a plurality of cells extending from the first end face to the second end face, inside of the cells being filled with working fluid that oscillates to transmit acoustic waves, the heat/acoustic wave conversion component mutually converting heat exchanged between the partition wall and the working fluid and energy of acoustic waves resulting from oscillations of the working fluid, wherein
hydraulic diameter HD of the heat/acoustic wave conversion component is 0.4 mm or less, where the hydraulic diameter HD is defined as HD=4×S/C, where S denotes an area of a cross-section of each cell perpendicular to the cell extending direction and C denotes a perimeter of the cross section, the heat/acoustic wave conversion component has an open frontal area at each end face of 60% or more and 93% or less, and the partition wall has arithmetic surface roughness (Ra) at the surface of 3 μm or more and 20 μm or less. |
