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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F21%3APU141230" target="_blank" >RIV/00216305:26210/21:PU141230 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.degruyter.com/document/doi/10.1515/phys-2021-0033/html" target="_blank" >https://www.degruyter.com/document/doi/10.1515/phys-2021-0033/html</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1515/phys-2021-0033" target="_blank" >10.1515/phys-2021-0033</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20704 - Energy and fuels

Projekt

<a href="/cs/project/EF15_003%2F0000456" target="_blank" >EF15_003/0000456: Laboratoř integrace procesů pro trvalou udržitelnost</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Open Physics

ISSN

2391-5471

e-ISSN

—

Svazek periodika

1

Číslo periodika v rámci svazku

19

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

4

Strana od-do

327-330

Kód UT WoS článku

000683479400003

EID výsledku v databázi Scopus

2-s2.0-85107976888