A Technical and Economic Analysis on Optimal Thermal Insulation Thickness for Existing Office Building in Mediterranean Climates

A combined experimental-computational approach is used for the analysis of hygrothermal performance of a brick wall provided with interior thermal insulation system. A 2D laboratory experiment is performed to determine temperature and moisture fields in a characteristic segment of the envelope over a sufficiently long period including cold winter months. Then, a computational model of moisture and heat transport is developed, using an integral two-phase balance equation capable of distinguishing between the particular phases of water and an enthalpy-based heat balance equation. A 2D computational representation of the experiment is used for model calibration and identification of unknown parameters, resulting in a very good agreement of experimental and calculated fields, with R 2 between 0.9687 and 0.9888. The calibrated model is subsequently used for a long-term hygrothermal assessment of the studied detail to demonstrate the functionality of the interior thermal insulation system, as well as the applicability of the developed model.

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A Technical and Economic Analysis on Optimal Thermal Insulation Thickness for Existing Office Building in Mediterranean Climates

Cited by 3 publications

References 19 publications

Cost-optimal methodology and passive strategies for building energy efficiency: a case-study

Cost-optimal methodology and passive strategies for building energy efficiency: a case-study

Assessing the impact of the envelope’s dynamic thermal transmittance on dwelling’s cooling performance with respect to the occupants’ thermal comfort

Thermal and hygric assessment of an inside-insulated brick wall: 2D critical experiment and computational analysis

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