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

Auzeby, Marine; Wei, Shen; Underwood, Chris; Tindall, Jess; Chen, Chao; Ling, Haoshu; Buswell, Richard A.

doi:10.3390/en9080605

Cited by 41 publications

(21 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

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

“…For example, some authors[45,72] validated the EnergyPlus PCM algorithm against the experimental results of Kuznik and Virgone[73] where strong agreement was observed between the experimental data and the numerical simulation for zone air temperature with roughly an average deviation of 3% for both PCM-integrated and non PCM-integrated models. In addition, Auzeby et al[74] validated the simulation results of indoor air temperature of their building model with field measured data from a greenhouse and a maximum error of 2.6 ºC, mean error of 0.1 ºC, and standard deviation of 0.7 ºC were found.…”

mentioning

confidence: 97%

Simulation-based optimization of PCM melting temperature to improve the energy performance in buildings

et al. 2017

View full text Add to dashboard Cite

show abstract

“…It is important to highlight that the simulations tools employed in this research are highly recommended by several international and renowned standards, which have been greatly used in several scientific investigations [41][42][43][44][45][46]. Accordingly, the simulation tools accuracy supports the results reliability of the energy efficiency of the building in its original state, without thermal insulation materials, and the results of the energy efficient version, demonstrating thus the effectiveness of the strategies implemented for the climate under analysis.…”

mentioning

confidence: 58%

A Parametric Study and Performance Evaluation of Energy Retrofit Solutions for Buildings Located in the Hot-Humid Climate of Paraguay—Sensitivity Analysis

2019

View full text Add to dashboard Cite

Nowadays, awareness concerning the need to use energy efficiently is increasing significantly worldwide, thus, improving the energy efficiency levels in the building sector has acquired high importance because of their energy saving potential. However, several intervention options are available to achieve high energy efficiency levels in buildings, and the choice must be made considering the efficiency of the solution and the costs involved. Considering this, the present research aimed to develop a parametric study of several energy retrofit solutions for buildings located in the hot-humid climate of Paraguay, in order to analyse their efficiency in terms of comfort rates and cooling energy needs. Furthermore, the Analytic Hierarchy Process (AHP) is employed as a decision-making method to choose the most suitable intervention considering the investment costs required. Thus, threshold values of thermal transmittance for the building thermal envelope components are established through a parametric study and sensitivity analysis of the simulations results. Considering that Paraguay does not have national building energy codes, the outcomes of this research will constitute a support and contribute for the thermal parameters regulation of buildings aiding to improve the energy efficiency of Paraguayan buildings.A parametric study is developed in this research, in which dynamic energy simulations of a building performed using the EnergyPlus software and DesignBuilder interface. The weather data employed is the default one available in DesignBuilder for Asunción (Paraguay). The weather station corresponds to the Silvio Pettirossi airport, and the dataset cover a period of 18 years, from 1982 to 1999 for most stations. These hourly weather data are 'typical' data derived from hourly observations which correspond to a record of multiple years, where each selected month is representative of that month for the period of record [21]. The parameters used as evaluation indicators were operative temperature (T op ), which is employed to determine the discomfort rates, and the energy requirement of the thermal zone under analysis. The internal and external surface temperatures (T si . and T se , respectively), and the heat transfer through the building's envelope are also studied.The discomfort rate is computed considering two methods: the former, according to the acceptable indoor operative temperatures for buildings in the Category II of the standard EN 15251 for the design of buildings without mechanical cooling systems [22], which employs the adaptive method [23]; and the latter, applying the statistic method, using fixed threshold values of comfort temperature. This approach was already adopted for the thermal comfort assessment of buildings by several scientific research [24][25][26][27][28][29].In order to set the fixed range for the city of Asunción, which does not have a national standard energy code, a scientific literature analysis was performed. The static models usually set fixed thresholds values of comfort tempera...

show abstract

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

Cited by 41 publications

References 26 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

Simulation-based optimization of PCM melting temperature to improve the energy performance in buildings

A Parametric Study and Performance Evaluation of Energy Retrofit Solutions for Buildings Located in the Hot-Humid Climate of Paraguay—Sensitivity Analysis

Contact Info

Product

Resources

About