Effect of Aggregation on Thermal Conduction in Colloidal Nanofluids

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Using effective medium theory we demonstrate that the thermal conductivity of nanofluids can be significantly enhanced by the aggregation of nanoparticles into clusters. The enhancement is based purely on conduction and does not require a novel mechanism. Predictions of the effective medium theory are in excellent agreement with detailed numerical calculations on model nanofluids involving fractal clusters and show the importance of cluster morphology on thermal conductivity enhancements.

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Prasher, R; Evans, W; Fish, J; Meakin, P; Phelan, P & Keblinski, Pawel August 10, 2006.

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Using effective medium theory we demonstrate that the thermal conductivity of nanofluids can be significantly enhanced by the aggregation of nanoparticles into clusters. The enhancement is based purely on conduction and does not require a novel mechanism. Predictions of the effective medium theory are in excellent agreement with detailed numerical calculations on model nanofluids involving fractal clusters and show the importance of cluster morphology on thermal conductivity enhancements.

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  • Report No.: LM-06K085
  • Grant Number: DE-AC12-00SN39357
  • Office of Scientific & Technical Information Report Number: 893017
  • Archival Resource Key: ark:/67531/metadc884005

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  • August 10, 2006

Added to The UNT Digital Library

  • Sept. 21, 2016, 2:29 a.m.

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  • Feb. 16, 2017, 6:45 p.m.

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Prasher, R; Evans, W; Fish, J; Meakin, P; Phelan, P & Keblinski, Pawel. Effect of Aggregation on Thermal Conduction in Colloidal Nanofluids, article, August 10, 2006; Niskayuna, NY. (digital.library.unt.edu/ark:/67531/metadc884005/: accessed September 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.