Method and equipment for heat-of-vaporization transfer
OwnerEduard Kirschmanninventor
Life of this patent
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Abstract
A method and equipment for heat-of-vaporization transfer in a heat exchanger, using steam bubbles. To achieve higher transfers at slight overheating, and with a very simple design, steam bubbles are introduced into evaporation chambers formed between heat exchanger walls, said bubbles then being deformed by said walls and rising in-between them. As they rise, the steam bubbles form a thin liquid film between themselves and the heat exchanger walls, with constrained convection inside the film. As a result excellent local conditions for heat conduction are achieved. Moreover the liquid is well mixed and by evaporation into the bubble it is cooled as far as the immediate vicinity of the heat exchanger walls.
Claims6
A method for heat-of-vaporization transfer in heat exchanger, employing steam bubbles, comprising the following method steps:
- introducing steam bubbles into at least one evaporation chamber, consisting essentially of a liquid to be evaporated, the at least one evaporation chamber being formed between heat-transferring, heated heat exchanger walls and being mounted at a slant relative to the horizontal,
- allowing the introduced steam bubbles to rise in the at least one evaporation chamber,
- deforming the rising steam bubbles between the heat transferring, heat exchanger walls to form a constrained convection thin liquid film between the steam bubbles and the heat-transferring, heat exchanger walls by adjusting the diameter of the steam bubbles to a size at least larger than the distance between the heat exchanger walls at the side of bubble introduction whereby the steam bubbles enter the at least one evaporation chamber, and
- removing the steam bubbles for purposes of further use.
Dependencies are inferred from the claim text.