| 摘要 |
<p>The invention relates to a method and an arrangement for enforced heat transmission between an alimentary body, solid or liquid, and an ambient gas. The enforced heat transmission takes place in connection with cooling/freezing of the entire or parts of the alimentary body, or when cooking, frying or drying the same. The characterizing feature is that said sound consists of a low-frequency standing sound wave. Further an arrangement for realizing the method according to the invention is described, which includes a low-frequency sound generator comprising an exigator part (1, 12, 32, 33, 62) and a resonator part (2, 3, 4, 10, 11, 20, 30, 31, 60). The resonator part is acoustically virtually closed and is so designed tha the alimentary body, which is to be exposed to enforced heat transmission, is located within a zone inside the resonator part where the standing sound wave has a particle velocity anti-node.</p> |
