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Heat Transfer Research
インパクトファクター: 0.404 5年インパクトファクター: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN 印刷: 1064-2285
ISSN オンライン: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.2019029136
pages 1477-1494

EXPERIMENTAL AND NUMERICAL INVESTIGATION OF HEAT TRANSFER ENHANCEMENT IN A PLATE HEAT EXCHANGER USING A FLY ASH NANOFLUID

Halil Ibrahim Variyenli
Gazi University, Technology Faculty, Energy Systems Engineering, Teknikokullar, 06500 Ankara, Turkey

要約

High-efficiency plate heat exchangers are widely used in many industries. Nanofluids can be used as working fluids in heat exchangers to improve the heat transfer rate. In this study, the effects of using a fly ash nanofluid in a plate heat exchanger were analyzed experimentally and numerically. ANSYS FLUENT software was used to simulate heat transfer characteristics in a plate heat exchanger. Fly ash nanoparticles with average sizes of 14 nm were used for making the nanofluid. The prepared nanofluid had nanoparticles of content 2% (wt./wt.). The experiments were carried out in various working conditions with changes in fluid mass flow rate and temperature. The obtained experimental results showed that using the fly ash nanofluid enhanced the overall heat transfer coefficient between 6-20%. Moreover, theoretical and experimental results are in good agreement with each other.

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