scholarly journals Potential Applications of Phase-change Materials (PCM) in Building Energy Efficiency

2014 ◽  
Vol 17 (2) ◽  
pp. 123-127 ◽  
Author(s):  
Yancang Li ◽  
Guanglei Sang ◽  
Huawang Shi
Keyword(s):  
Phase Change ◽  
Phase Change Materials ◽  
Waste Heat ◽  
Peak Load ◽  
Building Energy ◽  
Thermal Capacity ◽  
Building Energy Efficiency ◽  
Building Energy Conservation ◽  
Potential Applications ◽  
Underlying Basis

Phase-change material with high thermal capacity savings density is of great importance in building energy conservation, waste heat recovery, peak load shifting and other fields. We aim to guide the researchers of these problems and provide an underlying basis for the development of this new energy-saving material. We extensively reviewed the development history, classification, research methods and existing problems of the phase change materials system and discussed some potential research topics for the future. This study can promote the related research of the Phase-change materials.

Application of Phase Change Materials for Building Energy Efficiency

2012 ◽  
Vol 174-177 ◽  
pp. 912-915
Author(s):  
Quan Ying Yan ◽  
Li Li Jin
Keyword(s):  
Energy Efficiency ◽  
Phase Change ◽  
Phase Change Materials ◽  
Building Energy ◽  
Building Energy Efficiency ◽  
Advantages And Disadvantages

This paper reviews the application and development of phase change materials in wall, floor, concrete, points out its advantages and disadvantages, provides reference for phase change materials applied in practice.

scholarly journals Review on phase change materials and application in building energy saving

2021 ◽  
Vol 236 ◽  
pp. 05006
Author(s):  
Xiangxiang Wu
Keyword(s):  
Energy Storage ◽  
Phase Change ◽  
Energy Saving ◽  
Building Materials ◽  
Phase Change Materials ◽  
Building Energy ◽  
Research Progress ◽  
Building Energy Conservation ◽  
Building Energy Saving ◽  
New Phase

Phase change materials (PCMs) can be used for thermal energy storage and temperature regulation during phase change, and have broad application prospects in energy-efficient use and energy saving. The compatibility between traditional phase change materials and building materials is too bad to combine in building energy conservation. Therefore, the new phase change materials have become a research focus in the field of phase change energy storage in buildings. In the paper, the research progress of phase change materials in recent years and the optimization and application of passive building energy-saving are reviewed.

scholarly journals Numerical Thermal Characterization and Performance Metrics of Building Envelopes Containing Phase Change Materials for Energy-Efficient Buildings

2018 ◽  
Vol 10 (8) ◽  
pp. 2657 ◽  
Author(s):  
Mingli Li ◽  
Guoqing Gui ◽  
Zhibin Lin ◽  
Long Jiang ◽  
Hong Pan ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Energy Storage ◽  
Phase Change ◽  
Phase Change Materials ◽  
Performance Metrics ◽  
Financial Burden ◽  
Building Energy ◽  
Design Parameters ◽  
Building Energy Efficiency ◽  
Building Envelopes

Residential and commercial buildings consume nearly 40 percent of total USA energy use and account for one-third of total greenhouse gas emissions. The challenges are how to effectively promote energy efficiency in buildings to respond to the high financial burden of energy consumption, while reducing pollution. Phase change materials (PCMs) have been used as passive energy storage for building systems. Along this vein, this study aims to numerically elucidate the design parameters of building envelopes strengthened by PCM layers, and unveil their impacts on building energy efficiency. Critical design variables, such as the thickness of the PCM layer, the latent heat of PCMs, or melting temperature of PCMs were selected for a parametric study, while performance metrics were used to assess building efficiency. Results revealed that PCM-enabled building walls exhibited different levels of improvement, in terms of reduction of peak temperature and temperature swings. Among the variables, the selection of the proper melting point for a PCM was identified as the most crucial parameter for determining building energy efficiency, while the heat of fusion was also observed as a critical property of PCM for building potential. Findings also demonstrated that the placement of the PCM near the interior wall surface could achieve higher efficiency, as compared to other cases. Results also showed that the thermal conductivity of PCM has a minimum contribution to energy storage capacity.

Analysis and Application of Phase Change Materials on Energy Saving in Buildings

2011 ◽  
Vol 411 ◽  
pp. 523-526 ◽  
Author(s):  
An Wang ◽  
Ming Wen Hu ◽  
Deng Ke Tao ◽  
Jing Wang
Keyword(s):  
Energy Efficiency ◽  
Phase Change ◽  
Energy Saving ◽  
Room Temperature ◽  
Phase Change Materials ◽  
Building Energy ◽  
Building Energy Efficiency ◽  
Swelling Soil ◽  
Composite Phase Change Materials ◽  
Saving Effect

Current research on building energy efficiency and the application of the principle of the phase change materials are outlined. Analysis of research regarding phase change materials and their classifications on energy-saving in buildings are analyzed and the main existing issues are summarized. The energy-saving effect is verified with the utilization of paraffin and swelling soil composite phase change materials, the result of which suggests that room temperature can be comparatively stabilized with the utilization of phase change materials and energy efficiency can be critically increased. This demonstrates that phase change materials have a broad potential in engineering endeavors.

Energy Impacts of Nonlinear Behavior of Phase Change Materials When Applied to Opaque Building Envelopes

2013 ◽  
Vol 136 (1) ◽  
Author(s):  
Paulo Cesar Tabares-Velasco
Keyword(s):  
Phase Change ◽  
Energy Use ◽  
Phase Change Materials ◽  
Energy Savings ◽  
Peak Load ◽  
Building Energy ◽  
Energy Simulation ◽  
Building Energy Simulation ◽  
Peak Reduction ◽  
The Impact

Research on phase change materials (PCM) as a potential technology to reduce peak loads and heating, ventilation and air conditioning (HVAC) energy use in buildings has been conducted for several decades, resulting in a great deal of literature on PCM properties, temperature, and peak reduction potential. However, there are few building energy simulation programs that include PCM modeling features, and very few of these have been validated. Additionally, there is no previous research that indicates the level of accuracy when modeling PCMs from a building energy simulation perspective. This study analyzes the effects a nonlinear enthalpy profile has on thermal performance and expected energy benefits for PCM-enhanced insulation. The impact of accurately modeling realistic, nonlinear enthalpy profiles for PCMs versus simpler profiles is analyzed based on peak load reduction and energy savings using the conduction finite difference (CondFD) algorithm in EnergyPlus. The PCM and CondFD models used in this study have been previously validated after intensive verification and validation done at the National Renewable Energy Laboratory. Overall, the results of this study show annual energy savings are not very sensitive to the linearization of enthalpy curve. However, hourly analysis shows that if simpler linear profiles are used, users should try to specify a melting range covering roughly 80% of the latent heat; otherwise, hourly results can differ by up to 20%.

Research on Application of Phase Change Materials in the Field of Building Energy-Saving

2013 ◽  
Vol 327 ◽  
pp. 169-172
Author(s):  
Chang Quan He
Keyword(s):  
Phase Change ◽  
Energy Saving ◽  
Phase Change Materials ◽  
Building Energy ◽  
Advantages And Disadvantages ◽  
Building Energy Conservation ◽  
Building Energy Saving ◽  
Research On Application ◽  
Change Material ◽  
Analysis Category

Purposes:Understand the category and application of phase change materials, and improve the effect of building energy-saving. Methods:Comparative analysis category,advantages and disadvantages, application scope and application value of phase change material in the field of building energy-saving. Conclusions:Phase change materials have important economic, environmental and social benefits in the field of building energy conservation, should strengthen the research, development and promotion on them.

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