Abstract
The energy loss through building components resulting in higher energy consumption, thus energy saving has become an essential aspect in design and comfort. This study aims to optimize the thermal insulation of red clay bricks used in the walls of buildings by using a multiscale method. The finite element approach in ABAQUS software has been used to simulate the bricks under different configurations and conditions. Due to cost and time challenges and difficulties in simulation and complex calculations, simplified and applicable equations have been derived to calculate thermal insulation properties. The results show that the paper’s brick design has a significant thermal conductivity reduction that could reach more than one-third of the other corresponding studies. The study goes to fill the hollow bricks by the insulation polyurethane foam (PUF) and comparing the results with air hollow bricks. Besides its other advantages, the outcomes reveal that using the PUF has a noticeable desired-influence in thermal insulation when considering the heat transfer by convection and radiation inside the air cavity of bricks.
Highlights
The energy leak through building parts leads to higher energy consumption as a result of energy compensation
This paper aims to thermally optimize a brick wall by using a multiscale method for a wall constructed from modified hollow clay bricks to obtain a low equivalent thermal conductivity
The heat transfer in the hollow-brick walls consists of two mechanisms, firstly it is the conduction that represented by the brick and secondly, it is the convection that represented by heat transfer inside the cavities
Summary
The energy leak through building parts leads to higher energy consumption as a result of energy compensation. Energy-saving is a significant factor that has to be taken into account in building design and the level of indoor comfort. Approximately half of the accounted social energy has been for buildings consumption [1,2]. Many procedures used to limit this issue and improve energy savings to the highest level [3]. One of the common methods to reduce energy consumption is to use insulations, especially in walls. There are many aspects of this approach; one of the popular approaches is using and insulation-layer integration into the building wall. Many studies have conducted to address the effects of various locations and angles of the insulation layer related to the foundation wall in order to optimize wall energy conversation[4]
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