Investigation on spray cooling heat transfer performance with different nanoparticles and surfactants

The spray cooling enhancement method has consistently been the focus area for research as a highly effective cooling method that can alter the properties of spray media by allowing the addition of different types of additives. In this study, an open spray cooling system was established for experimen...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Heat and mass transfer 2022-05, Vol.58 (5), p.887-901
Hauptverfasser: Bao, Jun, Wang, Yu, Kosonen, Risto, Xu, Xinjie, Liu, Jinxiang
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The spray cooling enhancement method has consistently been the focus area for research as a highly effective cooling method that can alter the properties of spray media by allowing the addition of different types of additives. In this study, an open spray cooling system was established for experimental purposes. Firstly, the effects of nozzles on the spray cooling characteristics were investigated through four kinds of nozzle experiments. Al 2 O 3 -H 2 O, TiO 2 -H 2 O, ZrO 2 -H 2 O, and SiO 2 -H 2 O nanofluids were chosen as cooling substances based on the optimal nozzles, and the effects of the type and concentration of nanoparticles on cooling performance were studied. Based on the performance of the nanoparticles, sodium dodecyl benzenesulfonate(SDBS) was selected as the surfactant for Al 2 O 3 and TiO 2 nanoparticles, while cetyltrimethyl ammonium bromide(CTAB) was selected as the surfactant for ZrO 2 and SiO 2 nanoparticles. The effects of surfactants with different concentrations on the heat transfer performance of nanofluids were studied. The results showed that when the mass fraction of SiO 2 nanoparticles was 0.2% and CTAB was 0.005%, an optimal cooling effect was achieved; which was 5.9% higher than that of water and 1.7% higher than that obtained without CTAB.
ISSN:0947-7411
1432-1181
DOI:10.1007/s00231-021-03150-6