Periodic steady-state heat transfer in cooling panels

Antonopoulos, KA; Democritou, F

dc.contributor.author	Antonopoulos, KA	en
dc.contributor.author	Democritou, F	en
dc.date.accessioned	2014-03-01T01:09:30Z
dc.date.available	2014-03-01T01:09:30Z
dc.date.issued	1993	en
dc.identifier.issn	0142-727X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/11035
dc.subject	panel cooling	en
dc.subject	periodic heat transfer	en
dc.subject.classification	Thermodynamics	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.classification	Mechanics	en
dc.subject.other	Buildings	en
dc.subject.other	Cooling	en
dc.subject.other	Pipe flow	en
dc.subject.other	Cooling panels	en
dc.subject.other	Periodic steady state heat trasfer	en
dc.subject.other	Slabs	en
dc.subject.other	Heat transfer	en
dc.title	Periodic steady-state heat transfer in cooling panels	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/0142-727X(93)90045-O	en
heal.identifier.secondary	http://dx.doi.org/10.1016/0142-727X(93)90045-O	en
heal.language	English	en
heal.publicationDate	1993	en
heal.abstract	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
heal.publisher	BUTTERWORTH-HEINEMANN	en
heal.journalName	International Journal of Heat and Fluid Flow	en
dc.identifier.doi	10.1016/0142-727X(93)90045-O	en
dc.identifier.isi	ISI:A1993KT12200012	en
dc.identifier.volume	14	en
dc.identifier.issue	1	en
dc.identifier.spage	94	en
dc.identifier.epage	100	en