For the dynamic heat transfer characteristics of building external walls in solar-enriched areas under the dual thermal disturbances between low temperature and intense solar radiance
it is necessary to efficiently optimize the thermal insulation design in winter. Taking Lhasa as an example
this study uses a dynamic heat transfer numerical calculation model to analyze the influence of the change of thermal resistance and thermal inertia index on the thermal response characteristics of composite external walls. After that
the functional relationship expressions among these three factors
namely Poly2D
LogNormal2D
and Plane
were constructed
and the variations patterns of the interior surface temperature of the south and north facing external walls were revealed under the combined influence of thermal resistance and thermal inertia index. On this basis
the matching relationship suggestions between the minimum thermal resistance and thermal inertia index of external walls were proposed. The findings obtained in this study can provide rapid and convenient parameter optimization guidance for the optimized design of the thermal performance of building envelopes in solar-enriched areas.
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references
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