Abstract: A flow-boiling canopy wick (FBCW) employing film (meniscus) evaporation and perforated distribution layer separating the liquid stream from the underlying vapor space is provided. The vapor vents continuously through periodic perforations, in contrast to plain surface which becomes completely covered by vapor at high heat flux. The FBCW allows streamwise liquid tracks on the distribution layer between perforations providing capillary liquid flow toward heated surface and evaporation on high-effective-conductivity monolayer wick. Under extreme heat flux, various hydrodynamic limits prevent liquid supply and vapor removal, i.e., the capillary-viscous, wick superheat, perforation pressure drop and chocking and liquid-vapor stability limits. The liquid and vapor inertia control the streamwise continuous liquid track (with isolated and/or merged vapor track) and, for saturated water at 1 atm CFD and wick pressure drop, predict heat flux up to 0.

Abstract: A heat transfer device including a sealed container, a base layer, formed on the bottom face of the container, and a wick is provided. The wick has a plurality of projections protruding upward from the base layer. A fluid is encapsulated in the container. The heat transfer device further includes a guide unit arranged on an inner face of the container, which guides the liquid to the wick.

Abstract: A heat transfer device including a sealed container, a base layer, formed on the bottom face of the container, and a wick is provided. The wick has a plurality of projections protruding upward from the base layer. A fluid is encapsulated in the container. The heat transfer device further includes a guide unit arranged on an inner face of the container, which guides the liquid to the wick.

Abstract: A heat transfer device including a sealed container, a base layer, formed on the bottom face of the container, and a wick is provided. The wick has a plurality of projections protruding upward from the base layer. A fluid is encapsulated in the container. The heat transfer device further includes a guide unit arranged on an inner face of the container, which guides the liquid to the wick.

Abstract: A heat transfer device including a sealed container, a base layer, formed on the bottom face of the container, and a wick is provided. The wick has a plurality of projections protruding upward from the base layer. A fluid is encapsulated in the container. The heat transfer device further includes a guide unit arranged on an inner face of the container, which guides the liquid to the wick.