Torsional Flow Heat Exchanger with Twisted Oval Tube

Autor:	Xin Gu, Cheng Chen, Ning Li, Guan Wang, Qianxin Zhang, Yongqing Wang
Rok vydání:	2023
Předmět:	Fluid Flow and Transfer Processes Space and Planetary Science Mechanical Engineering Aerospace Engineering Condensed Matter Physics
Zdroj:	Journal of Thermophysics and Heat Transfer. 37:3-15
ISSN:	1533-6808 0887-8722
DOI:	10.2514/1.t6410
Popis:	Based on the enhanced heat transfer technology of the torsional flow heat exchanger (TFHE), the characteristics of fluid flow and heat transfer in the TFHE with twisted oval tube (TOT) were analyzed by combining numerical simulation and theoretical analysis. The field synergy principle was used to evaluate thermal convection on both tube and shell sides. The influences of the TOT on the heat transfer enhancement and flow resistance performance of the TFHE were discussed. The results show that contrasted with smooth tube, on the tube side, the convective heat transfer coefficient of the TOT is increased by 25.17–38.28%, and the comprehensive performance is increased by 18.56–24.21%. On the shell side, the convective heat transfer coefficient is increased by 117.99–126.53%, and the comprehensive performance is increased by 40.82–48.28%. The study provides a reference for the development of shell-and-tube heat exchangers.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4b472566a6d0ea35b5ffa1b87fda2d22 https://doi.org/10.2514/1.t6410 Zobrazit plný text záznamu