Heat transfer and pressure drop in tubes fitted with grooved lobe rotor-assembled strands

Author

Chonggang Han ; Wei Peng ; Weimin Yang ; Zhen Zhang ; Changfeng Guan ; Yumei Ding ; Hua Yan ; Fengxiang Li

Author_Institution

Mech. & Electr. Eng. Coll., Beijing Univ. of Chem. Technol., Beijing, China

Volume

3

fYear

2014

fDate

19-21 Aug. 2014

Firstpage

926

Lastpage

929

Abstract

The heat transfer enhancement of grooved lobe rotors and smooth tube were investigated in the integrated heat transfer performance test bench of shell-and-tube heat exchanger. The results indicated that heat transfer rate of tube with the grooved lobe rotors increased about 80-120% compared with that of smooth tube, but the coefficients of resistance also increased about 65-75%. It would be necessary to modify the structure of grooved lobe rotors in the future in order to obtain high heat transfer coefficient and a relatively low friction factor.

Keywords

friction; heat exchangers; heat transfer; pipes; rotors; friction factor; grooved lobe rotor-assembled strands; integrated heat transfer performance test bench; pressure drop; resistance coefficients; shell-and-tube heat exchanger; tubes; Electron tubes; Friction; Heat transfer; Resistance; Resistance heating; Rotors; Temperature measurement; Nusselt number; friction factor; grooved lobe rotor; shell-and-tube heat exchanger;

fLanguage

English

Publisher

ieee

Conference_Titel

Materials for Renewable Energy and Environment (ICMREE), 2013 International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4799-3335-8

Type

conf

DOI

10.1109/ICMREE.2013.6893823

Filename

6893823