| 摘要 |
A honeycomb-like regenerative bed element having an infinite number of cells, characterized in that the following formula is given: f=(1- beta ) beta 3 wherein beta is an opening ratio of the regenerative bed element, beta =(P-T)2/P2 P is a pitch of the cells, which is a distance between one center of gravity in one cell and another center of gravity in another cell, the distance extending across a common cell wall perpendicular thereto, and T is a thickness of wall of each of the cells, and that the P and T are set at a maximum value obtained by the formula f or set within a range of values close to that maximum value. P/T ratio, namely, a ratio between P and T may be set at 7.5 or within a range of values from 5 to 10 on the basis of the formula f so as to obtain an optimal conditions for the regenerative bed element. The regenerative bed element is formed from a ceramics material.
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