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Influence on Heat Transfer Coefficient of Heat Exchanger by Velocity and Heat Transfer Temperature Difference(PDF)

《哈尔滨理工大学学报》[ISSN:1007-2683/CN:23-1404/N]

Issue:
2017年02期
Page:
29-33
Research Field:
机械动力工程
Publishing date:

Info

Title:
Influence on Heat Transfer Coefficient of Heat Exchanger by Velocity and Heat Transfer Temperature Difference
Author(s):
WANG FauR-TIAN YuZHANG Xiu-yuCUI Lu-Lu
(School of Mechanical and Power L,n}lineerin}, 日arhin I」 nicersitv of Seienee and ’feclmolo}y, llarbin 150080,China)
Keywords:
Keywords:heat Exchanger heat transfer coefficient velocityheat transfer temperature difference
PACS:
-
DOI:
10.15938/j.jhust.2017.02.006
Abstract:
Abstract:Aimed to insufficient heat transfer of heat exchanger, research the influence on the heat transfer coefficient impacted by velocity and heat transfer temperature difference of tube heat exchanger. According to the different heat transfer temperature difference and gas velocity,the experimental data were divided into group. Using the control variable method,the above two factors were analyzed separately. K一△T and k一:fitting curve were clone to obtain empirical function. The entire heat exchanger is as the study object,using numerical simulation methods,porous media,k一£model,second order upwind mode,and pressure一velocity coupling with SIMPLE algorithm,the entire heat exchanger temperature field and the heat transfer coefficient distribution were given. Finally the trend of the heat transfer coefficient effected by the above two factors was gotten.

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Last Update: 2017-06-12