Publication detail

Effect of buried depth on thermal performance of a vertical U-tube underground heat exchanger

Yang, L., Zhang, B., Klemeš, J.J., Liu, J., Song, M., Wang, J.

Original Title

Effect of buried depth on thermal performance of a vertical U-tube underground heat exchanger

Type

journal article in Web of Science

Language

English

Original Abstract

Many researchers numerically investigated U-tube underground heat exchanger using a two-dimensional simplified pipe. However, a simplified model results in large errors compared to the data from construction sites. This research is carried out using a three-dimensional full-size model. A model validation is conducted by comparing with experimental data in summer. This article investigates the effects of fluid velocity and buried depth on the heat exchange rate in a vertical U-tube underground heat exchanger based on fluid-structure coupled simulations. Compared with the results at a flow rate of 0.4 m/s, the results of this research show that the heat transfer per buried depth at 1.0 m/s increases by 123.34%. With the increase of the buried depth from 80 to 140 m, the heat transfer per unit depth decreases by 9.72%. © 2021 Li Yang et al., published by De Gruyter 2021.

Keywords

buried depth; computational fluid dynamics; fluid velocity; ground source heat pump; U-tube heat exchanger

Authors

Yang, L., Zhang, B., Klemeš, J.J., Liu, J., Song, M., Wang, J.

Released

1. 1. 2021

Publisher

De Gruyter

ISBN

2391-5471

Periodical

Open Physics

Year of study

1

Number

19

State

Republic of Poland

Pages from

327

Pages to

330

Pages count

4

URL

https://www.degruyter.com/document/doi/10.1515/phys-2021-0033/html

BibTex

@article{BUT172044,
  author="Jiří {Klemeš} and Jin {Wang}",
  title="Effect of buried depth on thermal performance of a vertical U-tube underground heat exchanger",
  journal="Open Physics",
  year="2021",
  volume="1",
  number="19",
  pages="327--330",
  doi="10.1515/phys-2021-0033",
  issn="2391-5471",
  url="https://www.degruyter.com/document/doi/10.1515/phys-2021-0033/html"
}