Location
Utah Valley University Sorensen Center
Start Date
5-9-2016 10:45 AM
End Date
5-9-2016 10:57 AM
Description
Superhydrophobic surfaces have recently gained much media and scholarly attention due to their drag-reducing, self-cleaning, and ice-preventing properties. One particularly promising application for superhydrophobic surfaces is in condensation. It has been shown that condensation on superhydrophobic surfaces promotes drop-wise condensation, which is known to increase heat transfer around 5-7 times [1,2] relative to film-wise condensation. Increased heat transfer rates would benefit a number of applications such as desalination, energy conversion [3], atmospheric water harvesting [4,5], and other high heat flux applications [6] involving condensation. However, very little work has been done with condensation on superhydrophobic surfaces in a flow environment. The objective of this work is to explore the parameters which influence heat transfer for condensing flow in a superhydrophobic channel, beginning by investigating the hydrodynamics in an adiabatic two-phase channel flow. This paper specifically addresses how the driving pressure in a superhydrophobic channel changes relative to classical channels.
Two-Phase Flow Pressure Drop in Superhydrophobic Channels
Utah Valley University Sorensen Center
Superhydrophobic surfaces have recently gained much media and scholarly attention due to their drag-reducing, self-cleaning, and ice-preventing properties. One particularly promising application for superhydrophobic surfaces is in condensation. It has been shown that condensation on superhydrophobic surfaces promotes drop-wise condensation, which is known to increase heat transfer around 5-7 times [1,2] relative to film-wise condensation. Increased heat transfer rates would benefit a number of applications such as desalination, energy conversion [3], atmospheric water harvesting [4,5], and other high heat flux applications [6] involving condensation. However, very little work has been done with condensation on superhydrophobic surfaces in a flow environment. The objective of this work is to explore the parameters which influence heat transfer for condensing flow in a superhydrophobic channel, beginning by investigating the hydrodynamics in an adiabatic two-phase channel flow. This paper specifically addresses how the driving pressure in a superhydrophobic channel changes relative to classical channels.