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Effects of changing surrounding conditions on the thermal analysis of the Moste concrete dam
ID
Žvanut, Pavel
(
Author
),
ID
Turk, Goran
(
Author
),
ID
Kryžanowski, Andrej
(
Author
)
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MD5: BB49FFFC1113DFD047A27DA49BC02557
PID:
20.500.12556/rul/04f01a27-5b62-4ba3-a8b0-0c24c826e2d0
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Abstract
This paper deals with the heat transfer analysis of the 63-year-old and 60-m-high Moste concrete arch-gravity dam, located in Northwest Slovenia. The analysis was performed after a new sophisticated monitoring system had been established, making it possible to perform continuous measurements of the temperatures of the concrete, water, and dam surroundings, i.e., air temperatures and amount of solar insolation. An equation defining nonlinear and nonstationary heat conduction in the case of a two-dimensional space, for a homogeneous isotropic solid whose thermal conductivity is independent of temperature, was solved numerically by means of the finite-element method, taking into account appropriate boundary conditions. The latter involved the effects of changing conditions in the surroundings (i.e., shading, convection,and solar radiation) during the analyzed period of 15 consecutive clear days in the summer. The results show that the measured and calculated temperatures of the concrete at different locations, and at different depths, were in very good agreement.
Language:
English
Keywords:
betonske pregrade
,
toplotna analiza
,
prenos toplote
,
metoda končnih elementov
,
merilni instrumenti
,
monitoring
,
analiza časovnih vrst
,
sončno sevanje
,
konvekcija
,
temperaturni učinki
,
concrete dams
,
thermal analysis
,
heat transfer
,
finite element method
,
measuring instruments
,
monitoring
,
time series analysis
,
solar radiation
,
convection
,
temperature effects
Typology:
1.01 - Original Scientific Article
Organization:
FGG - Faculty of Civil and Geodetic Engineering
Publisher:
ASCE
Year:
2015
Number of pages:
Str. 1-9
PID:
20.500.12556/RUL-70802
UDC:
624
ISSN on article:
0887-3828
DOI:
10.1061/(ASCE)CF.1943-5509.0000776
COBISS.SI-ID:
2114663
Publication date in RUL:
10.07.2015
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3686
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1359
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Record is a part of a journal
Title:
Journal of performance of constructed facilities
Shortened title:
J. perform. constr. facil.
Publisher:
American Society of Civil Engineers
ISSN:
0887-3828
COBISS.SI-ID:
25776128
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