Abstract
Condensation technology has been widely applied in industries such as energy, metallurgy, refrigeration, petrochemicals, and chemical engineering. Steam condensation is a complex phase change process, and its heat transfer characteristics are significantly different from convective heat transfer without phase change. This article is based on the condensation treatment process of triethylene glycol dehydration regeneration tail gas, proposing the use of elliptical tubes instead of circular tubes for condensation of regeneration tail gas. The finite volume method was used to numerically study the condensation process of regenerated exhaust gas inside an elliptical tube, and compared with a circular tube. The effect of different structural parameters on condensation was also studied. The results show that the use of elliptical tubes can effectively improve condensation efficiency, with a maximum condensation effect of 2.04 times. The research results can provide guidance for enhancing condensation of triethylene glycol regeneration exhaust gas.
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