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Condensation of Moist Air in Heat Exchanger Using CFD

Authors: Karel Frana, Jan Barák, Jörg Stiller

Abstract:

This work presents results of moist air condensation in heat exchanger. It describes theoretical knowledge and definition of moist air. Model with geometry of square canal was created for better understanding and postprocessing of condensation phenomena. Different approaches were examined on this model to find suitable software and model. Obtained knowledge was applied to geometry of real heat exchanger and results from experiment were compared with numerical results. One of the goals is to solve this issue without creating any user defined function in the applied code. It also contains summary of knowledge and outlook for future work.

Keywords: Validation, Experiment, Condensation, exchanger

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1336941

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References:


[1] A. Michel, E. Bush, J. Nipkow, C. Brunner, H. Bo, "Room air conditioners: Recommendation for policy design”, Paris, 2012, available online: http://www.topten.eu/uploads/File/ Room%20air%20conditioners%20Recommendations_May%202012.pdf
[2] Condensation, available on Merriam Webster at: http://www.merriam-webster.com/dictionary/condensation.
[3] K. Sakakura, S. Yamamoto, "Numerical and experimental predictions of heterogeneous condensate flow of moist air in cooled pie” in International Journal of Heat and Fluid Flow, 2006, vol. 27, issue 2, pp. 220-228. DOI: 10.1016/j.ijheatfluidflow.2005.08.006.
[4] G. Nolte, F. Mayinger, "Condensation from steam-air mixtures in a horizontal annular flow channel”. Experimental Thermal and Fluid Science, 1988, pp. 373-384.
[5] E.P. Volchkov, V.V. Terekhov, V.I. Terekhov, "A numerical study of boundary-layer heat and mass transfer in a forced flow of humid air with surface steam condensation” in International Journal of Heat and Mass Transfer, 2004, vol. 47, 6-7, pp. 1473-1481. DOI: 10.1016/j.ijheatmasstransfer.2003.09.018.
[6] M. Saraireh, "Heat transfer and condensation of water vapour from humid air in compact heat exchangers”, Victoria University, 2012, Dissertation Thesis, School of Engineering and Science.
[7] N. Ugurlubilek, "Numerical estimation of the condensate flow rate on the condenser pipe”, Journal of Engineering and Architecture, Faculty of Eskisehir Osmangazi University, 2011, XXIV, no.2.
[8] M. Lejon, "Wall condensation modeling in convective flow”, KTH Industrial Engineering and Management, Master of Science Thesis, 2013.
[9] A. Eghbalzadeh, M. Javan, "Comparison of mixture and VOF models for numerical simulation of air-entrainment in skimming flow over stepped spillways”, 2012 International Conference on Modern Hydraulic Engineering, doi:10.1016/j.proeng.2012.01.786.
[10] P. Talukdar, "Condensation", study literature for students, Department of Mechanical Enginnering, IIT Delhi.
[11] T. B. Gatski, M.Y. Hussaini, J.L. Lumley, "Simulation and modeling of turbulent flows”, 1996, New York, Oxford University Press.
[12] M. J. Izadi, J. Ammouie, "Numerical analysis effect of sweep angle and taper ratio on lift and drag coefficients of a cessna wing”, Ninth International Congress of Fluid Dynamics and Porpulsion, 18-21th December 2008, Alexandria, Egypt.