Title of article :
Film condensation on a vertical microchannel
Author/Authors :
J.A. Al-Jarrah، نويسنده , , A.F. Khadrawi، نويسنده , , M.A. Al-Nimr، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Pages :
5
From page :
1172
To page :
1176
Abstract :
In this paper, a two dimensional laminar liquid film which condenses on a vertical microchannel is investigated analytically. A liquid film thickness, condensation mass flux flow and the variation of the velocity through the liquid thickness were determined by modified Navier–Stockes and energy equations. The effect of some parameters on the liquid film thickness, condensation mass flow rate and velocity are investigated. These parameters include slipping in temperature, β, and velocity, α, due to microscale interaction. It was found that, the liquid film thickness, δ, decreases as the slipping factors increases, and diminishes as a value of slipping factors (α and β) become more than or equal to 0.1. Increasing the slip in temperature due to microscale interaction causes the condensation mass flow rate to increase as the value of slip in velocity increases. Additionally, the slip value in the channel was found to increase as the slip value in velocity, α, increases.
Keywords :
Microchannel , Vertical plate , film condensation , Slip factor , Boundary layer
Journal title :
International Communications in Heat and Mass Transfer
Serial Year :
2008
Journal title :
International Communications in Heat and Mass Transfer
Record number :
1220390
Link To Document :
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