The thermal conductivity and viscosity of water-based and ethylene-glycol-based multiwall carbon nanotube (MWCNT) suspensions are measured for MWCNT volume concentrations up to 0.24%. The thermal conductivity is found to increase up to 8.6% and 9.3% for water-based and ethylene-glycol-based nanofluids, respectively. The viscosity of the nanofluids increases compared to that of their base fluids, with larger increases for the ethylene-glycol-based nanofluids. Intertube falling-film heat transfer characteristics of these nanofluids are measured and compared to data for the base fluids. The heat transfer coefficient of the water-based nanofluids decreases at low MWCNT concentrations but increases as the concentration increases. The heat transfer coefficient of the ethylene-glycol-based nanofluids decreases with an increase in MWCNT concentration, with a maximum deviation of 30%.
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ASME/JSME 2011 8th Thermal Engineering Joint Conference
March 13–17, 2011
Honolulu, Hawaii, USA
Conference Sponsors:
- Heat Transfer Division
ISBN:
978-0-7918-3892-1
PROCEEDINGS PAPER
Intertube Falling-Film Heat Transfer Behavior of Multiwall Carbon Nanotube Suspensions (MWCNT Nanofluids) Available to Purchase
Binglu Ruan,
Binglu Ruan
Tsinghua University, Beijing, China; University of Illinois, Urbana, IL; Xi’an Jiaotong University, Xi’an, China
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Anthony M. Jacobi
Anthony M. Jacobi
University of Illinois, Urbana, IL
Search for other works by this author on:
Binglu Ruan
Tsinghua University, Beijing, China; University of Illinois, Urbana, IL; Xi’an Jiaotong University, Xi’an, China
Anthony M. Jacobi
University of Illinois, Urbana, IL
Paper No:
AJTEC2011-44542, T10104; 9 pages
Published Online:
March 1, 2011
Citation
Ruan, B, & Jacobi, AM. "Intertube Falling-Film Heat Transfer Behavior of Multiwall Carbon Nanotube Suspensions (MWCNT Nanofluids)." Proceedings of the ASME/JSME 2011 8th Thermal Engineering Joint Conference. ASME/JSME 2011 8th Thermal Engineering Joint Conference. Honolulu, Hawaii, USA. March 13–17, 2011. T10104. ASME. https://doi.org/10.1115/AJTEC2011-44542
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