Detail publikace

Numerical study on heat transfer and flow characteristics of nanofluids in a circular tube with trapezoid ribs

Wang, W., Zhang, B., Cui, L.H., Zheng, H.W., Klemeš, J.J., Wang, J.

Originální název

Numerical study on heat transfer and flow characteristics of nanofluids in a circular tube with trapezoid ribs

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

This study aims to investigate heat transfer and flow characteristics of ethylene glycol/water (EGW) and CuO-EGW nanofluids in circular tubes with and without trapezoid ribs. Nusselt number and friction factor in tubes with trapezoid ribs are analysed under a constant heat flux by changing rib bottom angles. This study compares the convective heat transfer coefficients of 6 vol.% CuO-EGW nanofluid and base fluid. It is found that under a constant Reynolds number, the Nusselt number and friction factor for CuO-EGW nanofluid and base fluid increase with an increase in the inclination angle. The Nusselt number for the CuO-EGW nanofluid in the tube with 75° rib bottom angle averagely increases by 135.8% compared to that in the smooth tube, and the performance evaluation criterion is 1.64. © 2021 Wei Wang et al., published by De Gruyter 2021.

Klíčová slova

nanofluids; trapezoid rib; heat transfer enhancement; angle; friction factor

Autoři

Wang, W., Zhang, B., Cui, L.H., Zheng, H.W., Klemeš, J.J., Wang, J.

Vydáno

26. 4. 2021

Nakladatel

DE GRUYTER POLAND SP Z O OBOGUMILA ZUGA 32A STR, 01-811 WARSAW, MAZOVIA, POLAND

Místo

DE GRUYTER POLAND SP Z O OBOGUMILA ZUGA 32A STR, 01-811 WARSAW, MAZOVIA, POLAND

ISSN

2391-5471

Periodikum

Open Physics

Ročník

1

Číslo

19

Stát

Polská republika

Strany od

224

Strany do

233

Strany počet

10

URL

https://www.degruyter.com/document/doi/10.1515/phys-2021-0022/html

BibTex

@article{BUT172053,
  author="Jiří {Klemeš} and Jin {Wang}",
  title="Numerical study on heat transfer and flow characteristics of nanofluids in a circular tube with trapezoid ribs",
  journal="Open Physics",
  year="2021",
  volume="1",
  number="19",
  pages="224--233",
  doi="10.1515/phys-2021-0022",
  issn="2391-5471",
  url="https://www.degruyter.com/document/doi/10.1515/phys-2021-0022/html"
}