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2006•The Proceedings of Ibaraki District ConferenceOpen access

607 Study on Flow Boiling Heat Transfer Characteristics in a Narrow Rectangular Channel

Akito KUMAZAKI, Fumito KAMINAGA, Kunihito MATSUMURA

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Abstract

Two-phase flow boiling heat transfer of water in a narrow rectangular channel, 1.0mm high and 20mm wide, was experimentally examined at a atmospheric pressure in a range of mass flux 16 to 76 kg/m^2s. The effect of mass flux and location on a boiling curve is small. The heat transfer in a narrow rectangular channel is grater than Stephan-Abdelsalam's correlation. The effect of mass flux on the local heat transfer coefficient is small. The measured CHF is by 10 to 40% lower than that predicted by Katto's correlation.

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Two-phase flow boiling heat transfer of water in a narrow rectangular channel, 1.0mm high and 20mm wide, was experimentally examined at a atmospheric pressure in a range of mass flux 16 to 76 kg/m^2s. The effect of mass flux and location on a boiling curve is small. The heat transfer in a narrow rectangular channel is grater than Stephan-Abdelsalam's correlation. The effect of mass flux on the local heat transfer coefficient is small. The measured CHF is by 10 to 40% lower than that predicted by Katto's correlation.

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Available abstract

Two-phase flow boiling heat transfer of water in a narrow rectangular channel, 1.0mm high and 20mm wide, was experimentally examined at a atmospheric pressure in a range of mass flux 16 to 76 kg/m^2s. The effect of mass flux and location on a boiling curve is small. The heat transfer in a narrow rectangular channel is grater than Stephan-Abdelsalam's correlation. The effect of mass flux on the local heat transfer coefficient is small. The measured CHF is by 10 to 40% lower than that predicted by Katto's correlation.

Key concepts: Boiling, Nucleate boiling, Critical heat flux, Heat flux, Heat transfer coefficient, Mass flux, Thermodynamics, Heat transfer

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