Investigation of Boiling Heat Transfer and Flow Regimes in a Heat Exchanger

Azmahani Sadikin; Muhammad Adib Jamil; Norasikin Mat Isa

doi:10.4028/www.scientific.net/AMM.660.679

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 660Investigation of Boiling Heat Transfer and Flow...

Investigation of Boiling Heat Transfer and Flow Regimes in a Heat Exchanger

Abstract:

Experimental and numerical simulation of heat transfer and flow regimes for vertical flow across horizontal tubes are presented for mass flow rate in the range 0.03 – 0.17 kg/s and heat fluxes in the range 1.07–1.35 kW/m². The tubes had a diameter of 9.75 mm and a pitch to diameter ratio of 1.85. The CFX version 14.0 from ANSYS was used to predict the flow regimes and the temperature distribution in the tube bundles. These data and the predictions from numerical simulation were compared with the data available in the literature. It is found that the circulation zone in the shell becomes bigger as the mass flow rate is increases. The flow patterns identified in this experiment are bubbly, intermittent and annular flow. These data agrees well with the published data.

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Periodical:

Applied Mechanics and Materials (Volume 660)

Pages:

679-683

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.660.679

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Online since:

October 2014

Authors:

Azmahani Sadikin*, Muhammad Adib Jamil, Norasikin Mat Isa

Keywords:

Boiling, CFD, Flow Pattern, Heat Exchanger

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