Analysis of Fluid Velocity in Borehole Ground Heat Exchangers Connected in the Tichelmann System
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F24%3A00372940" target="_blank" >RIV/68407700:21110/24:00372940 - isvavai.cz</a>
Výsledek na webu
<a href="https://doi.org/10.1063/5.0200789" target="_blank" >https://doi.org/10.1063/5.0200789</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/5.0200789" target="_blank" >10.1063/5.0200789</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Analysis of Fluid Velocity in Borehole Ground Heat Exchangers Connected in the Tichelmann System
Popis výsledku v původním jazyce
In this article, an analysis of the numerical results obtained during the design of ground heat exchangers (GHE) installation for a heat pump system, as well as the results of flow measurements in the installed system are presented. The GHE system consists of 24 vertical 100-meter U-tube probes made of PE-Xa material with a diameter of 40x3.7 mm. The system is connected in Tichelmann configuration. The correctly performed installation allows obtaining real operating parameters in accordance with the design assumptions. The Tichelmann connections of ground exchanger enable uniform glycol flows without the need for hydraulic balancing of the installation. The non-uniformity of the flow between the GHE loops is on average 18.8% in relation to the mean flow velocity of the glycol. The lack of throttling for control purposes translates into significantly lower hydraulic resistance of the ground heat exchanger installation, which in turn may translate into lower operating costs in the case of circulation pumps. Irrespective of the size of the stream pumped through the distribution lines, the flow of glycol through individual loops was also uniform.
Název v anglickém jazyce
Analysis of Fluid Velocity in Borehole Ground Heat Exchangers Connected in the Tichelmann System
Popis výsledku anglicky
In this article, an analysis of the numerical results obtained during the design of ground heat exchangers (GHE) installation for a heat pump system, as well as the results of flow measurements in the installed system are presented. The GHE system consists of 24 vertical 100-meter U-tube probes made of PE-Xa material with a diameter of 40x3.7 mm. The system is connected in Tichelmann configuration. The correctly performed installation allows obtaining real operating parameters in accordance with the design assumptions. The Tichelmann connections of ground exchanger enable uniform glycol flows without the need for hydraulic balancing of the installation. The non-uniformity of the flow between the GHE loops is on average 18.8% in relation to the mean flow velocity of the glycol. The lack of throttling for control purposes translates into significantly lower hydraulic resistance of the ground heat exchanger installation, which in turn may translate into lower operating costs in the case of circulation pumps. Irrespective of the size of the stream pumped through the distribution lines, the flow of glycol through individual loops was also uniform.
Klasifikace
Druh
D - Stať ve sborníku
CEP obor
—
OECD FORD obor
20101 - Civil engineering
Návaznosti výsledku
Projekt
—
Návaznosti
S - Specificky vyzkum na vysokych skolach
Ostatní
Rok uplatnění
2024
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název statě ve sborníku
AIP Conference Proceedings
ISBN
978-0-7354-4873-5
ISSN
1551-7616
e-ISSN
1551-7616
Počet stran výsledku
7
Strana od-do
"020009-1"-"020009-7"
Název nakladatele
AIP Publishing
Místo vydání
Melville, NY
Místo konání akce
Dalešice
Datum konání akce
3. 10. 2023
Typ akce podle státní příslušnosti
WRD - Celosvětová akce
Kód UT WoS článku
—