Work

Experimental study on energy saving and thermal insulation of AAC walls and sandwich structures

Year: 2024

Type: article

Abstract: Autoclaved aerated concrete (AAC) materials are being increasingly recognized as an efficient method to enhance the thermal efficiency of buildings. This research seeks to measure the indoor temperature enhancement and energy conservation achieved by incorporating AAC and Autoclaved Aerated Concrete Sandwich (AACS) into building faces without ventilation. The energy efficiency and thermal insulation impacts of sintered brick(S) walls, AAC walls, and AACS walls constructed during the fall and winter seasons for each day of the week in the three test rooms are also discussed. The study indicates that the average indoor temperature reduction during daytime for AAC and AACS walls compared to sintered brick walls was 9.11% and 14.31%; Thermal load levelling reduction was 28.41% and 46.76%.The study concluded that per unit area of AAC and AACS walls consume 0.64W and 0.8W less energy than sintered brick walls, respectively, emit 11.78 kg/m2.day and 14.69 kg/m2.day less CO2 and save 8.73 RMB/m2.day and 10.88 RMB/m2.day on the building's electricity costs. Among them, the AACS wall and thermal insulation benefits are superior to the AAC wall is superior to the sintered brick wall, should be promoted in the construction industry.

Source: Case Studies in Thermal Engineering

DOI: 10.1016/j.csite.2024.104999

Authors: Jinsong Tu, Gulei Chen, Cairui Yu

Institutions: Anhui Jianzhu University, West Anhui University

Language: English

Topic: Building energy efficiency and sustainability

Subfield: Building and Construction

Field: Engineering

Domain: Physical Sciences

SDGs: Affordable and clean energy, Climate action, Industry, innovation and infrastructure

Open Access status: gold

Estimated APC paid: $1,210