Reduced-scale experiments on the thermal performance of phase change material wallboard in different climate conditions

2019 ◽  
Vol 160 ◽  
pp. 106191 ◽  
Author(s):  
Yuhao Qiao ◽  
Liu Yang ◽  
Jiayang Bao ◽  
Yan Liu ◽  
Jiaping Liu
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Thermal Performance ◽  
Climate Conditions ◽  
Change Material ◽  
Reduced Scale

A reduced-scale experiment to evaluate the thermal performance of building envelopes containing phase change material spheres

2019 ◽  
Vol 12 (4) ◽  
pp. 629-640 ◽  
Author(s):  
Xiaoqin Sun ◽  
Jovana Jovanovic ◽  
Siyuan Fan ◽  
Youhong Chu ◽  
Yajing Mo ◽  
...  
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Thermal Performance ◽  
Building Envelopes ◽  
Scale Experiment ◽  
Change Material ◽  
Reduced Scale

Experimental Study of Heat Transfer in a Reduced Scale Cavity Incorporating Phase Change Material Into Its Vertical Walls

2017 ◽  
Vol 10 (1) ◽  
Author(s):  
Ayoub Gounni ◽  
Mustapha El Alami
Keyword(s):  
Heat Flux ◽  
Heat Source ◽  
Phase Change ◽  
Phase Change Material ◽  
Heat Fluxes ◽  
Surface Temperatures ◽  
Different Depths ◽  
Vertical Walls ◽  
Change Material ◽  
Reduced Scale

In order to really assess the thermal performance of a wall incorporating phase change material (PCM), a reduced scale cavity has been monitored during two heating cycles. For each cycle, the heat source inside the test cell is switched “on” for 5 h and its setpoint is 38 °C and then switched off for 4 h. The outdoor air temperature is kept constant at a low temperature of 20 °C. Two walls are equipped with a PCM layer at different depths in order to study the optimal PCM location. The two other walls are wooden and glass to model a real building. The comparison between the four walls is made based on the absorbed heat fluxes and outside surface temperatures. The results show that the location of the PCM close to the heat source reaches its melting temperature and then reduces the surface temperature. At this location, the PCM layer stores the major part of the inlet heat flux. It takes 10 h to release the absorbed heat flux. However, the PCM layer, practically, does not have an effect on the surface temperatures and absorbed heat fluxes, when it is placed far from the heat source.

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