[Study on Hollow Brick Wall's Surface Temperature with Infrared Thermal Imaging Method]

Area of Science:

• Building Science
• Materials Science
• Thermal Engineering

Context:

• Hollow brick walls often exhibit uneven surface temperatures, impacting building thermal performance.
• Assessing thermal characteristics requires accurate surface temperature measurement techniques.
• Building materials like hollow bricks and mortar significantly influence wall thermal distribution.

Purpose:

• To apply infrared thermal imaging for measuring hollow brick wall surface temperatures.
• To analyze the thermal characteristics and material impacts on wall surface temperature distribution.
• To evaluate the effectiveness of improved hollow brick wall construction on thermal performance.

Summary:

• Infrared thermal imaging (using ThermaCAM P20 and Reporter) was employed to test hollow brick walls at a residential construction site.
• Experiments involved heat transfer analysis on walls constructed with sintering shale hollow bricks and various mortars.
• Results indicate that using thermal mortar with energy-saving hollow bricks reduces surface temperature non-uniformity from 0.6 to 0.4°C, shifting distribution to a normal pattern.

Impact:

• Improved heat preservation in hollow brick walls leads to better indoor thermal environments.
• Optimized construction using thermal mortar enhances temperature uniformity and average temperature frequency.
• Findings provide a basis for promoting and optimizing the thermal function of hollow brick walls.