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Periodic heat flux through a three layered slab
Author(s) -
Sodha M. S.,
Tiwari G. N.,
Kaushik S. C.
Publication year - 1980
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.4440040111
Subject(s) - slab , levelling , heat flux , thermal insulation , materials science , flux (metallurgy) , dynamic insulation , thermal , mechanics , composite material , structural engineering , heat transfer , vacuum insulated panel , engineering , meteorology , physics , geology , layer (electronics) , metallurgy , geodesy
This communication presents a derivation of an explicit expression for the periodic variation of thermal flux through a composite slab (insulation‐concrete‐insulation or concrete‐insulation‐concrete), with one face exposed to solar radiation and atmospheric air and the other face in contact with room air at constant temperature. It is seen that for maximum or minimum load levelling of the periodic heat flux the thicknesses of the outer layers of the composite slab are equal.