Articles dans des revues internationales ou nationales avec comité de lecture

A full-scale experimental set-up for evaluating the moisture buffer effects of porous material

  • Auteurs : J.W. Meissner Pontifical Catholic University of Parana (PUCPR) Laboratório de Sistemas Térmicos, N. Mendes Pontifical Catholic University of Parana (PUCPR) Laboratório de Sistemas Térmicos, K. Cordeiro Mendonça Pontifical Catholic University of Parana (PUCPR) Laboratório de Sistemas Térmicos, L.M. Moura Pontifical Catholic University of Parana (PUCPR) Laboratório de Sistemas Térmicos
  • Journal : International Communications in Heat and Mass Transfer, vol.37, 28 septembre 2010, p. 1197-1202, 6 p.
  • Mots clés : Porous building material; Relative humidity level; Hygroscopic inertia; MBV; Experimental apparatus; Light weight wood

The objective of this work is to present a full-scale experimental apparatus to evaluate the hygroscopic inertia of porous building materials, whose principle is based on measurements of the changes in a mass of a porous material when its neighboring environment is subjected to daily cyclic variation of relative humidity. Results in terms of the moisture buffer value index (MBV) for a light weight wood construction material are also presented and discussed, considering two sample sizes: a cubic cell with 24 m2 of mass exchange surface area and a smaller one with a circular exposed area of approximately 0.08 m².