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Thermal analysis of a concrete dam taking into account insolation, shading, water level and spillover
ID
Žvanut, Pavel
(
Avtor
),
ID
Turk, Goran
(
Avtor
),
ID
Kryžanowski, Andrej
(
Avtor
)
PDF - Predstavitvena datoteka,
prenos
(5,34 MB)
MD5: 49230DC5251950F9C9C2386F2D2AFED3
URL - Izvorni URL, za dostop obiščite
https://www.mdpi.com/2076-3417/11/2/705
Galerija slik
Izvleček
This study presents a procedure for modeling the heat transfer process in a concrete dam, taking into account the time-varying boundary conditions on the upstream and downstream sides of the dam (i.e., the water level of the reservoir, spillover, insolation, and shading) which affect the temperature conditions of the dam. The large concrete arch-gravity Moste Dam (in North West Slovenia) was analyzed, where an automated system for the measurement of concrete and water temperatures, and for the monitoring of meteorological effects, was installed. Thermal analyses (1D and 2D) for non-linear and non-stationary heat conduction through solids were performed using a finite element method (FEM) based program, TeEx, which was complemented by two specially developed programs for determining the effects of convection and insolation, considering also the effect of shading. A 15-day period was analyzed, as well as a period of one year. It was found that the results of the performed analyses fitted in well with the experimentally determined concrete temperature measurements. The results showed that at the insolated side of the dam, the temperature gradient was largest in a very narrow area along the concrete surface, but the temperature did not stabilize shallower than at a depth of about 6 m. As part of the thermal analyses, uncertainty analyses of the results of the calculations were also performed.
Jezik:
Angleški jezik
Ključne besede:
concrete dam
,
heat transfer
,
solar radiation
,
shading
,
convection
,
thermal analysis
,
finite element method
,
temperature monitoring
,
temperature field
,
uncertainty
Vrsta gradiva:
Članek v reviji
Tipologija:
1.01 - Izvirni znanstveni članek
Organizacija:
FGG - Fakulteta za gradbeništvo in geodezijo
Status publikacije:
Objavljeno
Različica publikacije:
Objavljena publikacija
Leto izida:
2021
Št. strani:
19 str.
Številčenje:
Vol. 11, iss. 2, art. 705
PID:
20.500.12556/RUL-125102
UDK:
624.012:627.82:621.8.035
ISSN pri članku:
2076-3417
DOI:
10.3390/app11020705
COBISS.SI-ID:
46998275
Datum objave v RUL:
04.03.2021
Število ogledov:
1247
Število prenosov:
206
Metapodatki:
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Objavi na:
Gradivo je del revije
Naslov:
Applied sciences
Skrajšan naslov:
Appl. sci.
Založnik:
MDPI
ISSN:
2076-3417
COBISS.SI-ID:
522979353
Licence
Licenca:
CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:
http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:
To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Začetek licenciranja:
13.01.2021
Sekundarni jezik
Jezik:
Slovenski jezik
Ključne besede:
betonski jez
,
prenos toplote
,
sončno sevanje
,
senčenje
,
konvekcija
,
toplotna analiza
,
metoda končnih elementov
,
interakcija človek-stroj
Projekti
Financer:
EC - European Commission
Program financ.:
European Social Found
Financer:
ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:
I0-0032
Naslov:
Preizkušanje materialov in konstrukcij
Financer:
ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:
P2-0260
Naslov:
Mehanika konstrukcij
Financer:
ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:
J2-9196
Naslov:
Masivni betoni - optimiziranje tehnologije ob uporabi naprednih preskusnih metod
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