Modeling the Operation of a Cooling System for Return Ethylene in the Production of High-Pressure Polyethylene

Autor:	I. G. Khusainov, R. R. Urazov, T. A. Ishmuratov, I. K. Gimaltdinov
Rok vydání:	2018
Předmět:	Ethylene Materials science Countercurrent exchange General Engineering Mechanics Polyethylene Condensed Matter Physics Coolant Volumetric flow rate chemistry.chemical_compound chemistry Heat exchanger Water cooling Tube (fluid conveyance)
Zdroj:	Journal of Engineering Physics and Thermophysics. 91:1233-1240
ISSN:	1573-871X 1062-0125
DOI:	10.1007/s10891-018-1853-5
Popis:	The authors have presented a mathematical description of the process of cooling of ethylene in countercurrent heat exchangers of the ″double-pipe″ type, where the ethylene gas is flowing in the inner tube, and water is moving countercurrently in the intertubular space. Such a system belongs to the basic cycle of polymerization of ethylene by the high-pressure method. Basic properties of heat-exchange apparatuses of a cooling system and its parameters have been described. The interrelation between such physical quantities as pressure, temperature, flow rates of coolants, and heat-transfer surfaces of circulating water and return ethylene has been determined. The proposed model takes account of the ″sticking″ of a liquid polymer onto interior tube walls.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2746455eb9f7f60bacf76f6b2d02404c https://doi.org/10.1007/s10891-018-1853-5 Zobrazit plný text záznamu Full text from SpringerLink