Experimental investigation on the effect of heat transfer enhancement of vacuum spray flash evaporation cooling using Al2O3–water nanofluid
| Autor: | Wen-Long Cheng, Yu-Hang Peng |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
020209 energy Heat transfer enhancement Nozzle Flash evaporation 02 engineering and technology 01 natural sciences 010305 fluids & plasmas Flux (metallurgy) Nanofluid Distilled water 0103 physical sciences Heat transfer 0202 electrical engineering electronic engineering information engineering Composite material Body orifice |
| Zdroj: | Energy Procedia. 142:3766-3773 |
| ISSN: | 1876-6102 |
| DOI: | 10.1016/j.egypro.2017.12.274 |
| Popis: | Vacuum spray flash evaporation cooling (VSFEC) experiments were carried out to study the effect of heat transfer enhancement of a nanofluid comprising distilled water and Al 2 O 3 particles with a diameter of 30 nm. The tests are performed with a flat heated surface using a nozzle with an orifice diameter of 0.5 mm and a nozzle-to-heated surface distance of 7 mm. The spray volume flux is varied in the range of 1.7 L/h-5.0 L/h, while the concentration is specified as 0ppm, 100ppm, 200ppm, 300ppm or 500ppm. The experiment results show that a more uniform surface temperature can be obtained, however, due to the difference of heat transfer mechanism, the effect of heat transfer enhancement is also different using Al 2 O 3 –water nanofluid. |
| Databáze: | OpenAIRE |
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