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THEORETICAL STUDY OF DIRECT CONTACT CONDENSATION OF LAMINAR SHEAR LIQUID FILM | ||
| Al-Qadisiyah Journal for Engineering Sciences | ||
| Article 1, Volume 7, Issue 2, 2014, Pages 205-224 PDF (0 K) | ||
| Author | ||
| Ahmed Razzaq Hasan | ||
| Abstract | ||
| ABSTRACT The present work is a theoretical study of the direct contact condensation process of saturated vapor on fully developed subcooled laminar liquid film flowing over thin liquid film on adiabatic and the inclined solid surface .A theoretical model based on momentum , continuity and energy equations . heat balance and thermal energy equation is developed to get approximate solution to describe the condensation performance of vapor on a thin liquid film . The obtained equations of solution are solved numerically using Runge-Kutta method and then plotting and the variation of must important parameters such as ; Reynolds , Prandtl , subcooling numbers and shear stress on the values of film thickness layer , bulk temperature , Nusselt number (heat transfer coefficient) and velocity of the flow . The result of variation shows that the major effect parameters is attributed to the Peclelt & Subcooling numbers , while the other parameters is less significant . | ||
| Keywords | ||
| direct contact condensation; shear liquid film; fully developed | ||
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