Validation of the theoretical study of the thermal transmittance of a wall, built with non-traditional materials using a test cell (#1791)

Authors

Soldatti, María Elena

Odobez, Norberto Santiago

Parente, Jorge Raúl

Higinio Prego, Sergio

Mariano Moretti, Antonio

Abstract

Although we find in bibliographies and different media that constructions are being carried out using alternative and recycling materials such as glass and plastic bottles, car covers, pallets and natural elements such as straw, earth, cane, etc. There is little information in the literature that determines the thermal transmittance data U of the assemblies or the different alternatives with which they can be built with these materials. This work aims to propose a practical theoretical methodology to determine the thermal transmittance of a wooden pallet wall with plastic bottles filled with plastic and covered with adobe on both interior and exterior faces. To do this, different studies from the bibliography were consulted and analyzed on various topics involved such as the conductivity of heterogeneous materials, plastics, adobe, pallet wood, etc. Based on this information and practical tests of its components, different calculations were carried out that allowed a theoretical evaluation of the total U of the wall and compared it with the data obtained from this wall placed in an outdoor test cell. The conclusion we reached is that it was possible to achieve values that are within the order between the data obtained theoretically and practically and the measurements carried out, yielding general values of the thermal transmittance of this type of construction between 0.514 - 0.684W/m2K and 0.438 - 0.468W/m2K respectively.