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Thermal performance of double hollow wall/roof
Author(s) -
Sodha M. S.,
Srivastava Alok,
Tiwari G. N.
Publication year - 1979
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.4440030405
Subject(s) - levelling , roof , materials science , heat transfer , thermal , heat flux , mechanics , radiation , air temperature , composite material , meteorology , thermodynamics , optics , structural engineering , engineering , physics , geology , geodesy
This paper presents an investigation of the periodic heat transfer through a double hollow concrete block, one face of which is exposed to solar radiation and atmospheric air while the other is in contact with room air at constant temperature. It is seen that maximum load levelling occurs when the thickness of the two air gaps is the same (5 cm); for typical parameters a time difference of 12 h between maximum/minimum of the thermal flux and solair temperature is also obtained.