TY - JOUR
T1 - Enhancement of laminar convective heat transfer using microparticle suspensions
AU - Zhu, J.Y.
AU - Tang, S.
AU - Yi, P.
AU - Baum, T.
AU - Khoshmanesh, K.
AU - Ghorbani, K.
PY - 2017/1
Y1 - 2017/1
N2 - This paper investigates the enhancement of convective heat transfer within a sub-millimetre diameter copper tube using Al2O3, Co3O4 and CuO microparticle suspensions. Experiments are conducted at different particle concentrations of 1.0, 2.0 and 5.0 wt% and at various flow rates ranging from 250 to 1000 µl/min. Both experimental measurements and numerical analyses are employed to obtain the convective heat transfer coefficient. The results indicate a significant enhancement in convective heat transfer coefficient due to the implementation of microparticle suspensions. For the case of Al2O3 microparticle suspension with 5.0 wt% concentration, a 20.3 % enhancement in convective heat transfer coefficient is obtained over deionised water. This is comparable to the case of Al2O3 nanofluid at the same concentration. Hence, there is a potential for the microparticle suspensions to be used for cooling of compact integrated systems.
AB - This paper investigates the enhancement of convective heat transfer within a sub-millimetre diameter copper tube using Al2O3, Co3O4 and CuO microparticle suspensions. Experiments are conducted at different particle concentrations of 1.0, 2.0 and 5.0 wt% and at various flow rates ranging from 250 to 1000 µl/min. Both experimental measurements and numerical analyses are employed to obtain the convective heat transfer coefficient. The results indicate a significant enhancement in convective heat transfer coefficient due to the implementation of microparticle suspensions. For the case of Al2O3 microparticle suspension with 5.0 wt% concentration, a 20.3 % enhancement in convective heat transfer coefficient is obtained over deionised water. This is comparable to the case of Al2O3 nanofluid at the same concentration. Hence, there is a potential for the microparticle suspensions to be used for cooling of compact integrated systems.
UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-84962693814&partnerID=MN8TOARS
U2 - 10.1007/s00231-016-1807-4
DO - 10.1007/s00231-016-1807-4
M3 - Article
SN - 0947-7411
VL - 53
SP - 169
EP - 176
JO - Heat and Mass Transfer
JF - Heat and Mass Transfer
IS - 1
ER -