Open AccessHeat Loss through External Enclosure Structures in the Stage of their Wetting and Freezing
Author(s) -
A.M. Beregovoi,
Vitaly A. Beregovoi
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/753/2/022007
Subject(s) - enclosure , materials science , heat transfer , thermal conductivity , thermal resistance , composite material , mechanics , wetting , thermal , air layer , thermal conduction , thermodynamics , layer (electronics) , humidity , engineering , physics , electrical engineering
An approximate estimate of the thermal conductivity of the material of the external enclosure structure is given under stationary heat transfer conditions, taking into account the various humidity of material and conditions of freezing of outside layer. There were given the calculated values of resistance to heat transfer for two considered designs of external enclosures: single-layer wall of inorganic material and the same with a screen (siding), separated from the wall by a ventilated air layer. The computational model showed an increase in the thermal conductivity of the material in the wet and frozen zones of the structures, a decrease in their total value of resistance to heat transfer, and rise in heat loss, compared to the normative method of calculation.