Abstract
In this paper, condensation of water vapor from a mixture of COR2R/HR2RO is studied numerically. To simplify the study and focus on the physical model, a simple vertical plate was chosen. Two condensation models are developed and numerical approach is considered to implement these models. The main objective in the cur-rent paper was to study the capability of numerical modeling in prediction of complex process. Results showed that developed condensation models in combination with numerical approach can predict the trends in condensation behavior of binary mixture very well. Results from this study can be developed further to be used in design of condensers which are suitable for oxy-fuel power plants.
Highlights
Oxy-fuel power plants are one of the recently promising processes for clean energy production with CO2 capturing and condensers for separation of water vapour from flue gas are essential components in these new proposed power plants.As the combustion process in the oxy-fuel power plants is performed with fuel and pure oxygen, the resulting flue gas consists mostly of H2O and CO2.The water vapour separation process from the flue gas impacts the thermal efficiency of the plant and the operational cost; the precise design of such CO2/H2O condenser systems is a vital demand in the industry [1,2,3]
Despite of wide referring to this kind of condenser in different proposed Oxy fuel cycles, the required design data are not available yet and there is a demand for more studies to achieve the desired efficiency for CO2 capturing and steam separation and basic studies on condensation of water vapour from a flue gas with high CO2 concentration could provide such useful technical data for designers
Condensation happens whenever the vapour temperature is decreased by cooling until it reaches the saturation temperature Tsat at the operational pressure and usually this takes place when vapor is brought into contact with a solid surface whose temperature Ts is less than saturation temperature of the vapor
Summary
Oxy-fuel power plants are one of the recently promising processes for clean energy production with CO2 capturing and condensers for separation of water vapour from flue gas are essential components in these new proposed power plants. When condensation occurs in a gas, the liquid droplets usually suspend in the gas As it is more common in the industry to operate and control surface contacts condensers and based on what is shown for oxy-fuel CO2 capturing, in the current study the condensation on solid surfaces with focus on film condensation is considered. It is a common practice in the literatures to accept film condensation in heat exchanger design [4,5,6]. Effect of fin installation on the condensation surface is partly studied
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
