JAUE2024-026: Experimental Analysis of a Cellulose-Based Hygroscopic Trombe Wall

Abstract

This study investigates the effectiveness of integrating paper cellulose insulation within a Trombe wall to enhance performance in humid climates. A novel Trombe wall design, featuring alternating layers of brick and paper cellulose, was experimentally evaluated in an outdoor test cell. Results demonstrate the hygroscopic Trombe wall’s ability to buffer humidity fluctuations and maintain stable indoor conditions. During summer, the wall mitigated condensation risks by regulating airgap humidity. In winter, it provided passive heating, consistently maintaining higher indoor temperatures compared to outdoor temperatures, especially during nighttime. The paper cellulose insulation contributed to both thermal and hygroscopic performance, reducing heat loss and moderating humidity. While further research incorporating a control group is needed for definitive quantification, this study highlights the significant potential of paper cellulose insulation in optimizing Trombe wall performance for humid climates.