ISSN 2542–0380
Труды Института механики им. Р.Р. Мавлютова
Электронный научный журнал | Electronic Scientific Journal
Proceedings of the Mavlyutov Institute of Mechanics


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Urazov R.R. Simulation of the operation of the gas refrigerator recurrent complicated ethylene polymer deposits Proceedings of the Mavlyutov Institute of Mechanics. 2016. 11(2). 199–204.
2016. Vol. 11. Issue 2, Pp. 199–204
URL: http://proc.uimech.org/uim2016.2.029,en
DOI: 10.21662/uim2016.2.029
Simulation of the operation of the gas refrigerator recurrent complicated ethylene polymer deposits
Urazov R.R.
Ishimbay Branch of USATU, Ishimbay

Abstract

The work based on the methods and equations of mechanics of multiphase media, the resulting system of ordinary differential equations, describing hydrodynamic and heat and mass transfer processes in counterflow heat exchangers type “pipe in pipe”, where the inner tube flows a mixture of ethylene and polyethylene, and in the annular space counter-current moves water. For gas mixtures is complicated by the “sticking” of liquid polyethylene on the walls of the pipe. In describing the process of formation of the polymer film is considered one of the possible mechanisms for the admission of liquid polyethylene particles from the turbulent core to the surface of the pipe, the turbulent diffusion. The results of studies on the dynamics of accumulation of the plastic film on the inner surface of gas refrigerator returnable ethylene. It is established that the formation of the profile of sediments is complex: the maximum film thickness is shifted to the output section of the channel.

Keywords

petrochemicals,
heat exchangers,
return ethylene,
polyethylene