Abstract
Nanofluids are colloidal suspensions with nano-sized particles (<100nm) dispersed in a base fluid. From literature it is seen that these fluids exhibit better heat transfer characteristics. In our present work, thermal conductivity and the forced convective heat transfer coefficient of an alumina-water nanofluid is investigated. Thermal conductivity is measured by a steady state method using a Guarded Hot Plate apparatus customized for liquids. Forced convective heat transfer characteristics are evaluated with help of a test loop under constant heat flux condition. Controlled experiments under turbulent flow regime are carried out using two particle concentrations (0.5vol% and 1vol %). Experimental results show that, thermal conductivity of nanofluids increases with concentration, but the heat transfer coefficient in the turbulent regime does not exhibit any remarkable increase above measurement uncertainty.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 6th International Conference on Nanochannels, Microchannels, and Minichannels, ICNMM2008 |
| Pages | 1035-1041 |
| Number of pages | 7 |
| Edition | PART B |
| DOIs | |
| Publication status | Published - 2008 |
| Externally published | Yes |
| Event | 6th International Conference on Nanochannels, Microchannels, and Minichannels, ICNMM2008 - Darmstadt, Germany Duration: 23 Jun 2008 → 25 Jun 2008 |
Other
| Other | 6th International Conference on Nanochannels, Microchannels, and Minichannels, ICNMM2008 |
|---|---|
| Country | Germany |
| City | Darmstadt |
| Period | 23/6/08 → 25/6/08 |
Fingerprint
ASJC Scopus subject areas
- Process Chemistry and Technology
Cite this
Experimental convective heat transfer with nanofluids. / Kabelac, S.; Baby, Anoop.
Proceedings of the 6th International Conference on Nanochannels, Microchannels, and Minichannels, ICNMM2008. PART B. ed. 2008. p. 1035-1041.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Experimental convective heat transfer with nanofluids
AU - Kabelac, S.
AU - Baby, Anoop
PY - 2008
Y1 - 2008
N2 - Nanofluids are colloidal suspensions with nano-sized particles (<100nm) dispersed in a base fluid. From literature it is seen that these fluids exhibit better heat transfer characteristics. In our present work, thermal conductivity and the forced convective heat transfer coefficient of an alumina-water nanofluid is investigated. Thermal conductivity is measured by a steady state method using a Guarded Hot Plate apparatus customized for liquids. Forced convective heat transfer characteristics are evaluated with help of a test loop under constant heat flux condition. Controlled experiments under turbulent flow regime are carried out using two particle concentrations (0.5vol% and 1vol %). Experimental results show that, thermal conductivity of nanofluids increases with concentration, but the heat transfer coefficient in the turbulent regime does not exhibit any remarkable increase above measurement uncertainty.
AB - Nanofluids are colloidal suspensions with nano-sized particles (<100nm) dispersed in a base fluid. From literature it is seen that these fluids exhibit better heat transfer characteristics. In our present work, thermal conductivity and the forced convective heat transfer coefficient of an alumina-water nanofluid is investigated. Thermal conductivity is measured by a steady state method using a Guarded Hot Plate apparatus customized for liquids. Forced convective heat transfer characteristics are evaluated with help of a test loop under constant heat flux condition. Controlled experiments under turbulent flow regime are carried out using two particle concentrations (0.5vol% and 1vol %). Experimental results show that, thermal conductivity of nanofluids increases with concentration, but the heat transfer coefficient in the turbulent regime does not exhibit any remarkable increase above measurement uncertainty.
UR - http://www.scopus.com/inward/record.url?scp=77952606148&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77952606148&partnerID=8YFLogxK
U2 - 10.1115/ICNMM2008-62099
DO - 10.1115/ICNMM2008-62099
M3 - Conference contribution
SN - 0791848345
SN - 9780791848340
SP - 1035
EP - 1041
BT - Proceedings of the 6th International Conference on Nanochannels, Microchannels, and Minichannels, ICNMM2008
ER -