Experimental investigation of convective heat transfer performance using sporadic flow divider type inserts

Suryaji S. Kale; Sanjaykumar S. Gawade

doi:10.14744/thermal.0000898

Experimental investigation of convective heat transfer performance using sporadic flow divider type inserts

Abstract

The depletion of conventional energy resources highlights the growing need for efficient utilization of available energy sources. Heat exchangers play a vital role in transferring heat between two or more fluids, and enhancing their performance is crucial for improving energy efficiency. Various techniques, categorized as active, passive, or hybrid methods, can be employed to augment heat transfer in heat exchangers. This experimental study investigates the use of innovative sporadic flow divider inserts as a passive method for heat transfer enhancement. The experiments were conducted using inserts with different twist angles of 90°, 60°, 45°, and 30°, over a range of Reynolds numbers from 7000 to 21000. The effect of spacing between the inserts was also analyzed using different space ratios (0.19, 0.39, 0.59, 0.78) in combination with the various twist angles. The results indicated that higher Reynolds numbers led to increased Nusselt numbers, a decrease in the Thermal Enhancement Factor (ψ), and a reduction in the Friction Factor (f). Among the tested configurations, the 45° twist angle insert exhibited the highest Thermal Enhancement Factor (ψ) and Overall Performance Criteria (η) across most conditions. Conversely, the 30° twist angle resulted in a significantly higher friction factor, impeding fluid flow. The optimal performance was achieved with a 45° twist angle and a space ratio of 0.59, yielding a 23% improvement in Thermal Enhancement Factor (ψ) and a 55% increase in Overall Performance Criteria (η) compared to a plain tube. These findings demonstrate that sporadic flow divider inserts can effectively enhance convective heat transfer with a moderate increase in friction, ultimately improving the Overall Performance Criteria (η).

Keywords

References

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Details

Primary Language

English

Subjects

Fluid Mechanics and Thermal Engineering (Other)

Journal Section

Research Article

Authors

Suryaji S. Kale ^* This is me
0000-0002-4136-9619
India

Sanjaykumar S. Gawade This is me
0000-0002-0498-8162
India

Publication Date

March 24, 2025

Submission Date

April 4, 2024

Acceptance Date

October 3, 2024

Published in Issue

Year 2025 Volume: 11 Number: 2

DOI

https://doi.org/10.14744/thermal.0000898

IZ

https://izlik.org/JA64SH75EN

Cite

RIS / Bibtex

APA

Kale, S. S., & Gawade, S. S. (2025). Experimental investigation of convective heat transfer performance using sporadic flow divider type inserts. Journal of Thermal Engineering, 11(2), 331-343. https://doi.org/10.14744/thermal.0000898

AMA

1.Kale SS, Gawade SS. Experimental investigation of convective heat transfer performance using sporadic flow divider type inserts. Journal of Thermal Engineering. 2025;11(2):331-343. doi:10.14744/thermal.0000898

Chicago

Kale, Suryaji S., and Sanjaykumar S. Gawade. 2025. “Experimental Investigation of Convective Heat Transfer Performance Using Sporadic Flow Divider Type Inserts”. Journal of Thermal Engineering 11 (2): 331-43. https://doi.org/10.14744/thermal.0000898.

EndNote

Kale SS, Gawade SS (March 1, 2025) Experimental investigation of convective heat transfer performance using sporadic flow divider type inserts. Journal of Thermal Engineering 11 2 331–343.

IEEE

[1]S. S. Kale and S. S. Gawade, “Experimental investigation of convective heat transfer performance using sporadic flow divider type inserts”, Journal of Thermal Engineering, vol. 11, no. 2, pp. 331–343, Mar. 2025, doi: 10.14744/thermal.0000898.

ISNAD

Kale, Suryaji S. - Gawade, Sanjaykumar S. “Experimental Investigation of Convective Heat Transfer Performance Using Sporadic Flow Divider Type Inserts”. Journal of Thermal Engineering 11/2 (March 1, 2025): 331-343. https://doi.org/10.14744/thermal.0000898.

JAMA

1.Kale SS, Gawade SS. Experimental investigation of convective heat transfer performance using sporadic flow divider type inserts. Journal of Thermal Engineering. 2025;11:331–343.

MLA

Kale, Suryaji S., and Sanjaykumar S. Gawade. “Experimental Investigation of Convective Heat Transfer Performance Using Sporadic Flow Divider Type Inserts”. Journal of Thermal Engineering, vol. 11, no. 2, Mar. 2025, pp. 331-43, doi:10.14744/thermal.0000898.

Vancouver

1.Suryaji S. Kale, Sanjaykumar S. Gawade. Experimental investigation of convective heat transfer performance using sporadic flow divider type inserts. Journal of Thermal Engineering. 2025 Mar. 1;11(2):331-43. doi:10.14744/thermal.0000898