Characteristics of heat transfer and flow of Al2O3/water nanofluid in a spiral-coil tube for turbulent pulsating flow

F. Ilami Doshmanziari, A. E. Zohir, H. Ramezani Kharvani, D. Jalali-Vahid, M. R. Kadivar

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

In the past two decades, enhancement of heat transfer characteristics of original fluid using nanofluids has been proposed by a large number of researchers. In this paper, an experimental study was carried out to investigate effect of pulsation on heat transfer of fluid flow inside a spiral-coil tube. In order to perform the experiments, a hot water reservoir tank was prepared and the spiral-coil was immersed horizontally inside the tank. Average temperature of the hot water bath was kept constant at 60 °C to establish a quiescent region of uniform temperature. The experiments were conducted in turbulent flow regime using distilled water and Al2O3/water nanofluid at 0.5, 1, and 1.5 % particle volume concentration. Results showed that overall heat transfer coefficient of the base fluid flow increases by using nanofluid or pulsation into the base fluid flow up to 14 %. Heat transfer results also indicated that combination of the nanofluid and the pulsation into the fluid flow can increase significantly the overall heat transfer coefficient up to 23 %.

Original languageEnglish
Pages (from-to)1305-1320
Number of pages16
JournalHeat and Mass Transfer/Waerme- und Stoffuebertragung
Volume52
Issue number7
DOIs
Publication statusPublished - 1 Jul 2016
Externally publishedYes

Fingerprint

Dive into the research topics of 'Characteristics of heat transfer and flow of Al2O3/water nanofluid in a spiral-coil tube for turbulent pulsating flow'. Together they form a unique fingerprint.

Cite this