POOL BOILING IN A VERTICAL ANNULUS BY A CIRCULAR PLAIN COPPER TUBE HEAT TRANSFER

Raed Shakır

POOL BOILING IN A VERTICAL ANNULUS BY A CIRCULAR PLAIN COPPER TUBE HEAT TRANSFER

Abstract

The influence of a plain copper tube on nucleate pool boiling heat transfer within a vertically oriented, open-bottom annular setup was analyzed through predictive modeling. The study used saturated water at atmospheric pressure, with a heated tube measuring 0.5 meters in length and 0.03 meters in diameter. The experiments focused on the confinement effect of the open tube side. Results show that an iterative approach was applied to evaluate heat flow, enabling the determination of heat transfer coefficients for laminar, transitional, and turbulent flow regimes, along with fluid temperature predictions. Mass flow rates ranged from 0.0025 to 0.02 g/sec, while applied heat varied between 600 and 950 Watts with inlet temperature 100°C. Fluid temperatures spanned 102.46 to 111.75°C at the inlet and 109.79 to 147.03°C at the outlet. This theoretical study solved over 5,070 heat transfer equations using Excel application with an iterative method. However, in the absence of experimental data, the heat transfer estimates were primarily derived from theoretical equations.

Keywords

Supporting Institution

University of Thi-Qar

Thanks

many thanks for all of you

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Details

Primary Language

English

Subjects

Bioengineering (Other)

Journal Section

Research Article

Authors

Raed Shakır ^*
0000-0001-5413-0861
Iraq

Publication Date

November 30, 2025

Submission Date

April 12, 2025

Acceptance Date

October 21, 2025

Published in Issue

Year 2025 Volume: 9 Number: 3

IZ

https://izlik.org/JA25JD54FE

Cite

RIS / Bibtex

APA

Shakır, R. (2025). POOL BOILING IN A VERTICAL ANNULUS BY A CIRCULAR PLAIN COPPER TUBE HEAT TRANSFER. International Journal of Engineering Science and Application, 9(3), 13-20. https://izlik.org/JA25JD54FE

AMA

1.Shakır R. POOL BOILING IN A VERTICAL ANNULUS BY A CIRCULAR PLAIN COPPER TUBE HEAT TRANSFER. IJESA. 2025;9(3):13-20. https://izlik.org/JA25JD54FE

Chicago

Shakır, Raed. 2025. “POOL BOILING IN A VERTICAL ANNULUS BY A CIRCULAR PLAIN COPPER TUBE HEAT TRANSFER”. International Journal of Engineering Science and Application 9 (3): 13-20. https://izlik.org/JA25JD54FE.

EndNote

Shakır R (November 1, 2025) POOL BOILING IN A VERTICAL ANNULUS BY A CIRCULAR PLAIN COPPER TUBE HEAT TRANSFER. International Journal of Engineering Science and Application 9 3 13–20.

IEEE

[1]R. Shakır, “POOL BOILING IN A VERTICAL ANNULUS BY A CIRCULAR PLAIN COPPER TUBE HEAT TRANSFER”, IJESA, vol. 9, no. 3, pp. 13–20, Nov. 2025, [Online]. Available: https://izlik.org/JA25JD54FE

ISNAD

Shakır, Raed. “POOL BOILING IN A VERTICAL ANNULUS BY A CIRCULAR PLAIN COPPER TUBE HEAT TRANSFER”. International Journal of Engineering Science and Application 9/3 (November 1, 2025): 13-20. https://izlik.org/JA25JD54FE.

JAMA

1.Shakır R. POOL BOILING IN A VERTICAL ANNULUS BY A CIRCULAR PLAIN COPPER TUBE HEAT TRANSFER. IJESA. 2025;9:13–20.

MLA

Shakır, Raed. “POOL BOILING IN A VERTICAL ANNULUS BY A CIRCULAR PLAIN COPPER TUBE HEAT TRANSFER”. International Journal of Engineering Science and Application, vol. 9, no. 3, Nov. 2025, pp. 13-20, https://izlik.org/JA25JD54FE.

Vancouver

1.Raed Shakır. POOL BOILING IN A VERTICAL ANNULUS BY A CIRCULAR PLAIN COPPER TUBE HEAT TRANSFER. IJESA [Internet]. 2025 Nov. 1;9(3):13-20. Available from: https://izlik.org/JA25JD54FE