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Periodic steady-state heat transfer in cooling panels
This item is provided by the institution :
National Technical University of Athens
Repository :
Digital Library of National Technical University of Athens | Dspace@NTUA
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ΕΚΤ item type
Journal part
(EN)
Scientific article
(EN)
EKT year
1993
(EN)
EKT historical period
Title
Periodic steady-state heat transfer in cooling panels (EN)
Creator
Antonopoulos, KA (EN)
Democritou, F (EN)
Description
A slab is considered to be exchanging heat internally with a fluid flowing through pipes embedded in the slab and externally by convection and radiation with the ambient surroundings in a periodic fashion. In practice, such cases are encountered in panel cooling of buildings, in which the heat produced within or inserted into a room is absorbed by a cold fluid flowing through pipes imbedded in the roof slab of the room. A method is developed for predicting the performance of such systems, which is based on a finite-difference solution of the transient two-dimensional heat conduction differential equation within the roof slab containing the cooling pipes. The boundary conditions on the upper surface are periodic, i.e., it is assumed that the daily cycle of the ambient temperature and the incident solar radiation are repeated on consecutive days, thus leading to a periodic steady-state solution. In the case of floor slabs, the problem becomes steady-state unless intermittent operation is to be examined. A parametric study is presented, in which the effect is examined of the most important parameters, including the pipe spacing and the cooling fluid temperature. © 1993. (EN)
Type
journalArticle (EN)
Subject
periodic heat transfer (EN)
Thermodynamics (EN)
Cooling (EN)
Pipe flow (EN)
Buildings (EN)
Mechanics (EN)
Cooling panels (EN)
panel cooling (EN)
Periodic steady state heat trasfer (EN)
Slabs (EN)
Engineering, Mechanical (EN)
Heat transfer (EN)
Provider
National Technical University of Athens
Repository / collection
Digital Library of National Technical University of Athens | Dspace@NTUA
Subcollections
Κεντρική Βιβλιοθήκη Ε.Μ.Π.
Ιδρυματικό Αποθετήριο
Δημοσιεύσεις μελών Δ.Ε.Π. σε περιοδικά
Journal
International Journal of Heat and Fluid Flow (EN)
Language
English
Issued
1993 (EN)
Identifier
http://hdl.handle.net/123456789/11035
1 (EN)
100 (EN)
0142-727X (EN)
14 (EN)
ISI:A1993KT12200012 (EN)
94 (EN)
10.1016/0142-727X(93)90045-O (EN)
Publisher
BUTTERWORTH-HEINEMANN (EN)
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