Title :
Investigation of Gas-Liquid Heat and Mass Transfer in Vertical Pipe of Quench Chamber
Author :
Tie, Li ; Yuan, Zhu-Lin
Author_Institution :
Coll. of Energy & Environ., Southeast Univ., Nanjing, China
Abstract :
Two-dimensional gas-liquid direct-contact heat-mass transfer in vertical pipe of CWS entrained-flow gasifier was simulated using VOF multiphase flow model. Water vapor diffusion in the syngas, surface tension and radiation heat transfer were considered when establishing the mathematics model. The corresponding experiment was conducted to validate the simulation results, and the numerical prediction of the temperature distribution was in a good agreement with experiment. With this model, the vapor concentration and the flow pattern of the falling water film with or without phase change were predicted.
Keywords :
diffusion; flow simulation; heat radiation; liquid films; mass transfer; pattern formation; pipe flow; stratified flow; surface tension; syngas; temperature distribution; two-phase flow; CWS entrained flow gasifier; VOF multiphase flow model; falling water film; flow pattern; flow simulation; gas-liquid heat transfer; gas-liquid mass transfer; quench chamber; radiation heat transfer; surface tension; syngas; temperature distribution; vapor concentration; vertical pipe; water vapor diffusion; Computer interfaces; Cooling; Equations; Heat transfer; Humidity; Predictive models; Slag; Temperature distribution; Thermodynamics; Water heating;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4812-8
Electronic_ISBN :
978-1-4244-4813-5
DOI :
10.1109/APPEEC.2010.5448373
