Thermal Performance Enhancement of Earth Tube Heat Exchanger

R. Vasanthakumar, P. Murugesan, S. Balamurugan, K. Akash, K. Dharunesh, K. Tamilselvi

2025

Abstract

The fabrication of an earth tube heat exchanger involves designing an efficient system for natural cooling or heating using underground pipes. The system circulates air through buried tubes, leveraging the earth's stable temperature to cool or warm the air, reducing reliance on traditional HVAC systems. Aluminium tube of length 21 m, 205 w/mk thermal conductivity, results in COP of 1.5 to 2.9.A copper tube of length 15m, 385 w/mk thermal conductivity results in COP 1.3 to 3.2. A 15m copper serpentine tube with thermal conductivity of 385 W/m·K exhibits a COP improvement from 1.3 to 3.2 at increased inlet velocity. This suggests that increased fluid velocity enhances the efficiency, heat transfer, and thermal performance of the system, hence the earth tube heat exchanger becomes more efficient. The result indicates that the analysed earth tube heat exchanger with copper serpentine tube and calculated COP will significantly improve the thermal performance of an earth tube heat exchanger.

Paper Citation

in Harvard Style

Vasanthakumar R., Murugesan P., Balamurugan S., Akash K., Dharunesh K. and Tamilselvi K. (2025). Thermal Performance Enhancement of Earth Tube Heat Exchanger. In Proceedings of the 1st International Conference on Research and Development in Information, Communication, and Computing Technologies - ICRDICCT`25; ISBN 978-989-758-777-1, SciTePress, pages 78-82. DOI: 10.5220/0013877100004919

in Bibtex Style

@conference{icrdicct`2525,
author={R. Vasanthakumar and P. Murugesan and S. Balamurugan and K. Akash and K. Dharunesh and K. Tamilselvi},
title={Thermal Performance Enhancement of Earth Tube Heat Exchanger},
booktitle={Proceedings of the 1st International Conference on Research and Development in Information, Communication, and Computing Technologies - ICRDICCT`25},
year={2025},
pages={78-82},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0013877100004919},
isbn={978-989-758-777-1},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 1st International Conference on Research and Development in Information, Communication, and Computing Technologies - ICRDICCT`25
TI - Thermal Performance Enhancement of Earth Tube Heat Exchanger
SN - 978-989-758-777-1
AU - Vasanthakumar R.
AU - Murugesan P.
AU - Balamurugan S.
AU - Akash K.
AU - Dharunesh K.
AU - Tamilselvi K.
PY - 2025
SP - 78
EP - 82
DO - 10.5220/0013877100004919
PB - SciTePress