A review on applications of shape-stabilized phase change materials embedded in building enclosure in recent ten years

Abstract

Phase change material (PCM) elements in buildings as effective thermal energy storage technologies could decrease indoor temperature swings and lower building cooling/heating loads due to their great latent heat and proper thermal conductivity. Shape-stabilized phase change materials (SSPCMs) attracted interest of many researchers due to their outstanding ability of keeping shape for long-term multiple thermal cycles with no need of encapsulation. A summarize on thermal dynamic characteristic and thermal performance of buildings integrated with SSPCMs is important for us to gain a better understand on their performance and energy saving potential in both active and passive buildings. This study has reviewed applications of SSPCMs embedded in building enclosure in recent ten years (2008-2018). Both numerical and experimental research works on integrating SSPCMs into building envelope components, such as walls, floor, roof and windows, were reviewed, respectively. A thorough conclusion about this review work and appropriate recommendations for further studies were presented at the end of the paper. This review work will help both researchers and engineers to capture up-to-date uses of SSPCMs to achieve energy efficient buildings.

Form‐stable Na 2 SO 4 ·10H 2 O‐Na 2 HPO 4 ·12H 2 O eutectic/hydrophilic fumed silica composite phase change material with low supercooling and low thermal conductivity for indoor thermal comfort improvement

“…Accordingly, to reduce the energy consumption of maintaining indoor thermal comfort, the building energy efficiency needs to be maximized. As is well‐known, the degree of building energy conservation depends predominantly on the thermal insulation performance of building envelopes such as walls, roofs, and floors . Consequently, it is vital to optimize the thermal insulation performance of building envelopes to reduce building energy consumption.…”

“…As is well-known, the degree of building energy conservation depends predominantly on the thermal insulation performance of building envelopes such as walls, roofs, and floors. [5][6][7] Consequently, it is vital to optimize the thermal insulation performance of building envelopes to reduce building energy consumption. Compared with conventional building materials, phase change materials (PCMs) as environmentally friendly renewable resource are the optimal alternative for their high volumetric latent heat storage ability.…”

The Impacts of a Building’s Thermal Mass on the Cooling Load of a Radiant System under Various Typical Climates

“…Besides, the phase change materials (PCMs) embedded in a building enclosure are regarded as a useful passive method to increase in heat storage capacity and thermal inertia further [8]. The structures are expected to narrow indoor temperature fluctuations and reduce energy demands [9], and the integration of PCM technologies has been on trial in some net-zero energy buildings recently [10,11].…”

Characterization of novel shape‐stabilized phase change material mortar: Portland cement containing Na 2 SO 4 ·10H 2 O and fly ash for energy‐efficient building

“…In order to solve the problem of material compatibility, the academic community paid attention to the application of shape‐stabilized phase change materials (SSPCMs) in concrete or mortar . Qian et al prepared a PCM cement mortar with n‐octadecane (OC)/diatomite SSPCM and tested the thermal and mechanical properties.…”

“…In order to solve the problem of material compatibility, the academic community paid attention to the application of shape-stabilized phase change materials (SSPCMs) in concrete or mortar. [18][19][20] Qian et al 21 prepared a PCM cement mortar with n-octadecane (OC)/diatomite SSPCM and tested the thermal and mechanical properties. The diatomite and cement showed excellent compatibility, which increased the SSPCM content to 8% (mass fraction), and the corresponding compressive and flexural strengths were 18.3 MPa (decreased by 54%) and 3.5 MPa (decreased by 52%), respectively.…”