| 摘要 |
<p>A heat transfer device used to cool or heat an object 4 comprises a thermal sink 5 used to cool or heat a flow of gas generated by a gas flow generator (fan) 2. Fan 2 communicates the heated or cooled gas through a cavity in the gas flow path, with the cavity receiving the object which in association with a wall of the gas flow path defines a restricted region having a gap distance 3 to promote turbulence in the gas flow and increase heat transfer. The object may be a drinking vessel having at least a portion of rapidly cooled to generate a frosted effect thereon. The cavity may be formed of a separate ducting 1 removable from the heat transfer device so that it may be cleaned or replaced with a different duct having a shape for a different item to be cooled or heated. The thermal sink may be copper coils communicating refrigerant or glycol based coolant. The device may be adapted to cool vials.</p> |
