Boiling heat transfer enhancement of magnetically actuated nanofluids
Şeşen, Muhsincan and Tekşen, Yiğit and Şahin, Berna and Şendur, Kürşat and Mengüç, M. Pınar and Koşar, Ali (2013) Boiling heat transfer enhancement of magnetically actuated nanofluids. Applied Physics Letters, 102 (16). ISSN 0003-6951 (Print) 1077-3118 (Online)
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Official URL: http://dx.doi.org/10.1063/1.4802791
Nanofluids offer a potential breakthrough as next-generation heat transfer fluids since they offer exciting new possibilities to enhance heat transfer performance compared to pure liquids. A major drawback for using nanofluids in practical applications is difficulty in maintaining their stability due to deposition on surfaces. In this study, we propose and experimentally investigate a magnetic actuation scheme to avoid this deposition. Two-phase heat transfer characteristics of the designed system have been experimentally investigated with magnetic actuation and compared to the results without magnetic actuation. Two phase average heat transfer enhancement observed with the suggested system was 17%. The average single phase enhancement is found as 29% with magnetic actuation. It was observed that magnetically actuated nanoparticles neither form any clusters nor precipitate after the experiments.
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