Optimization of geometric parameters of heat exchange pipes pin finning

International Conference "Transport and Storage of Hydrocarbons"

能源学;运输工程;化学工业

Akulov, K.A.^1 ; Golik, V.V.^1 ; Voronin, K.S.^1 ; Zakirzakov, A.G.^1

Industrial University of Tyumen, 38 Volodarskogo St., Tyumen

625000, Russia^1

关键词: Convective surfaces;    Deformed solid bodies;    Distributed loads;    Heat exchange;    Heat exchanging;    Optimal values;    Pin-fins;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/357/1/012014/pdf
DOI  :  10.1088/1757-899X/357/1/012014

来源: IOP

【 摘 要 】

The work is devoted to optimization of geometric parameters of the pin finning of heat-exchanging pipes. Pin fins were considered from the point of view of mechanics of a deformed solid body as overhang beams with a uniformly distributed load. It was found out under what geometric parameters of the nib (diameter and length); the stresses in it from the influence of the washer fluid will not exceed the yield strength of the material (aluminum). Optimal values of the geometric parameters of nibs were obtained for different velocities of the medium washed by them. As a flow medium, water and air were chosen, and the cross section of the nibs was round and square. Pin finning turned out to be more than 3 times more compact than circumferential finning, so its use makes it possible to increase the number of fins per meter of the heat-exchanging pipe. And it is well-known that this is the main method for increasing the heat transfer of a convective surface, giving them an indisputable advantage.