Performance of textile and building materials for a particular evaporative cooling purpose

Experimental study on the building evaporative cooling by using the Climatic Wind Tunnel

“…Pires et al (2011) suggested that the water-storage medium is the important factor that affects the evaporative cooling effect. To obtain the ideal water-storage medium required in their subsequent study, the researchers studied the evaporative cooling capacity of six types of building materials and five types of textile fabrics in a small wind tunnel with a fixed wind speed and temperature.…”

“…The experimental results showed that among the construction materials, the performance of the ceramic hollow brick was the best; among the textile fabrics, the performances of the fabric samples with cavities were the best. The authors eventually determined that polyester fabric with honeycomb cavities should be used as the sample for the following evaporative cooling study [11].…”

Impact of post-rainfall evaporation from porous roof tiles on building cooling load in subtropical China

“…Building energy simulation requires the thermophysical properties of the building materials as 4 fundamental inputs, including the thermal conductivity, specific heat capacity, and solar and thermal absorptances. Although the thermophysical properties of the commonly used building materials have been reported in several works, those of porous tiles remain uncertain.…”

“…This climatic feature facilitates evaporative cooling through the phase change of rainwater received in porous building materials and other specially designed structures. The consequence is a significant reduction of the external surface temperature of building envelopes [3][4][5], decreased heat flow into buildings [6][7][8], and lower cooling energy demands [9][10][11]. However, existing building energy simulation platforms such as EnergyPlus do not consider this evaporative cooling effect in heat gain calculations for building envelopes in areas of frequent rainfall [12].…”

The impact of evaporation from porous tile on roof thermal performance: A case study of Guangzhou’s climatic conditions

“…The experimental results showed that among the construction materials, the performance of the ceramic hollow brick was the best; among the textile fabrics, the performances of the fabric samples with cavities were the best. The authors eventually determined that polyester fabric with honeycomb cavities should be used as the sample for the following evaporative cooling study [18]. He et al, and Chen et al, constructed a passive evaporative cooling wall (PECW) out of moist void bricks [19], or pipe-shaped porous ceramics [20,21] that were capable of absorbing water and allowed wind penetration, thus reducing their surface temperature via water evaporation.…”