Energy Saving Potentials of Phase Change Materials Applied to Lightweight Building Envelopes

Seong, Yoon Bok; Lim, Jae Han

doi:10.3390/en6105219

Cited by 57 publications

(35 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These materials have the ability to absorb and release massive amounts of energy during phase transitions with small temperature change. A lot of work has been done for thermal comfort improvement and reduction of energy consumption in buildings by integration of PCMs [2][3][4][5][6][7]. Osterman et al [8] presented a study on PCM thermal storage systems of buildings for space heating and cooling on an annual basis using 30 plates filled with paraffin.…”

Section: Introductionmentioning

confidence: 99%

Thermal Performance Analysis of Multi-Phase Change Material Layer-Integrated Building Roofs for Energy Efficiency in Built-Environment

2017

View full text Add to dashboard Cite

Thermal energy storage using phase change materials (PCMs) plays a significant role in maintaining thermal comfort and reducing energy consumption in a building because of its ability to absorb/release heat within small temperature variations. In this paper, the thermal performance of roofs has been investigated based on various factors like the integration of a single PCM layer, integration of a double PCM layer, the thickness of the PCM, phase transition temperature and heat of fusion of the PCM. The analysis shows that integration of a single PCM layer of different thickness and phase transition temperature and heat of fusion in roof structures is unable to maintain a comfortable constant temperature inside the building due to incomplete solidification and melting of the PCM. However, the analysis shows that with multi-PCM layers of appropriate thickness it is possible to maintain a constant comfortable temperature of about 28 • C in the building throughout the day in Chennai, India. The analysis also shows that there is reduction in heat gain by 17 to 26% for a single PCM layered roof and 25 to 36% for a double PCM layered roof compared to the roof without PCM layer for the different months of the year.

show abstract

Section: Introductionmentioning

confidence: 99%

Thermal Performance Analysis of Multi-Phase Change Material Layer-Integrated Building Roofs for Energy Efficiency in Built-Environment

2017

View full text Add to dashboard Cite

show abstract

“…According to the International Energy Agency, 50% of the population living in cities consumes two-thirds of the world's energy, and that rate will rise to 73% by 2030, at which point it will be causing 70% of global CO2 emissions Therefore, reducing the energy consumed in and by buildings is important [18][19][20]. Several researchers have predicted that global energy demand in buildings will double by 2050 because 0.8 billion people lack adequate housing, 1.3 billion people currently lack electricity, and 3 billion people around the world still depend on traditional fuels such firewood, straw, and animal waste for cooking and heating [10,21].…”

Section: Energy Consumption In Buildingsmentioning

confidence: 99%

“…PCMs are a promising strategy for improving the energy performance of buildings through their high energy storage capacity. When PCMs are incorporated into a building envelope (in the walls or other components [19]), they can store and release energy as latent heat in short temperature ranges, which results in a large increase in the building's thermal mass [33].…”

Section: Application Of Pcms In Buildingsmentioning

confidence: 99%

Energy Saving Potential of PCMs in Buildings under Future Climate Conditions

Gassar

Yun

2017

Applied Sciences

View full text Add to dashboard Cite

Energy consumption reduction under changing climate conditions is a major challenge in buildings design, where excessive energy consumption creates an economic and environmental burden. Improving thermal performance of the buildings through support applying phase change material (PCM) is a promising strategy for reducing building energy consumption under future climate change. Therefore, this study aims to investigate the energy saving potentials in buildings under future climate conditions in the humid and snowy regions in the hot continental and humid subtropical climates of the east Asia (Seoul, Tokyo and Hong Kong) when various PCMs with different phase change temperatures are applied to a lightweight building envelope. Methodology in this work is implemented in two phases: firstly, investigation of energy saving potentials in buildings through inclusion of three types of PCMs with different phase temperatures into the building envelop separately and use weather file in the present (2017); and, secondly, evaluation of the effect of future climate change on the performance of PCMs by analyzing energy saving potentials of PCMs with 2020, 2050 and 2080 weather data. The results show that the inclusion of PCM into the building envelope is a promising strategy to increase the energy performance in buildings during both heating and cooling seasons in Seoul, Tokyo and Hong Kong under future climate conditions. The energy savings achieved by using PCMs in those regions are electricity savings of 4.48-8.21%, 3.81-9.69%, and 1.94-5.15%, and gas savings of 1.65-16.59%, 7.60-61.76%), and 62.07-93.33% in Seoul, Tokyo and Hong Kong, respectively, for the years 2017, 2020, 2050 and 2080. In addition, BioPCM and RUBITHERMPCM are the most efficient for improving thermal performance and saving energy in buildings in the tested regions and years.

show abstract

“…In Cyprus, the addition of a 0.15 m thick layer of PCM helped decrease the summer mean indoor temperature of 1.7˝C [17]. For Seong et al [18] different kinds of PCMs were especially added to lightweight buildings and used with night ventilation to decrease the indoor air temperature of up to 0.85˝C during the summer time.…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of Using Phase Change Materials on Reducing Summer Overheating Issues in UK Residential Buildings with Identification of Influential Factors

et al. 2016

View full text Add to dashboard Cite

Abstract:The UK is currently suffering great overheating issues in summer, especially in residential buildings where no air-conditioning has been installed. This overheating will seriously affect people's comfort and even health, especially for elderly people. Phase change materials (PCMs) have been considered as a useful passive method, which absorb excessive heat when the room is hot and release the stored heat when the room is cool. This research has adopted a simulation method in DesignBuilder to evaluate the effectiveness of using PCMs to reduce the overheating issues in UK residential applications and has analyzed potential factors that will influence the effectiveness of overheating. The factors include environment-related (location of the building, global warming/climate change) and construction-related (location of the PCM, insulation, heavyweight/lightweight construction). This research provides useful evidence about using PCMs in UK residential applications and the results are helpful for architects and engineers to decide when and where to use PCMs in buildings to maintain a low carbon lifestyle.

show abstract

Energy Saving Potentials of Phase Change Materials Applied to Lightweight Building Envelopes

Cited by 57 publications

References 9 publications

Thermal Performance Analysis of Multi-Phase Change Material Layer-Integrated Building Roofs for Energy Efficiency in Built-Environment

Thermal Performance Analysis of Multi-Phase Change Material Layer-Integrated Building Roofs for Energy Efficiency in Built-Environment

Energy Saving Potential of PCMs in Buildings under Future Climate Conditions

Effectiveness of Using Phase Change Materials on Reducing Summer Overheating Issues in UK Residential Buildings with Identification of Influential Factors

Contact Info

Product

Resources

About