Energy and cost efficiency of phase change materials integrated in building envelopes under Tunisia Mediterranean climate

Abstract An extensive study, including energy and economic analyses has been proposed to assess the benefits of the phase change materials (PCMs) when integrated into building envelopes under the Tunisian climate. Sensitivity analyses have been presented in order to investigate the PCM interaction with the thermal insulation and the cool roof measures. Numerical simulations with EnergyPlus highlighted the crucial selection of an optimal phase change temperature. The PCM applied on the outside face of a brick wall provided better energy efficiency, with the highest energy savings up to 13.4% achieved for the south orientation. The integration of the PCM improved the thermal inertia of the wall with an increase of 2 h in the time lag for the east orientation. A 30-year life cycle cost analysis showed that the integration of the PCM in a brick wall is not cost-effective. The interaction between the PCM and the thermal insulation in a brick wall showed a better efficiency of the PCM in the absence of insulation, providing the highest rate of energy consumption reduction, estimated to 12.21%. The integration of the PCM in a concrete-based cool roof compensated the wintertime penalties and reduced the daily surface temperature fluctuation by up to 5.35 °C.

[1]  Khawla Saafi,et al.  A life-cycle cost analysis for an optimum combination of cool coating and thermal insulation of residential building roofs in Tunisia , 2018, Energy.

[2]  Angus Gentle,et al.  Optimum Integration Of Albedo, Sub-roof R-value, And Phase Change Material For Cool Roofs , 2013, Building Simulation Conference Proceedings.

[3]  Ebrahim Solgi,et al.  Financial viability of PCMs in countries with low energy cost: A case study of different climates in Iran , 2018, Energy and Buildings.

[4]  Marcus Bianchi,et al.  Verification and validation of EnergyPlus phase change material model for opaque wall assemblies , 2012 .

[5]  Luisa F. Cabeza,et al.  Energy savings due to the use of PCM for relocatable lightweight buildings passive heating and cooling in different weather conditions , 2016 .

[6]  Jia-ping Liu,et al.  Thermal performance analysis of PCM wallboards for building application based on numerical simulation , 2018 .

[7]  Naouel Daouas,et al.  A study on optimum insulation thickness in walls and energy savings in Tunisian buildings based on analytical calculation of cooling and heating transmission loads , 2011 .

[8]  M. Quéneudec,et al.  Study of the thermal performances of an exterior wall of barley straw sand concrete in an arid environment , 2015 .

[9]  Jiawei Lei,et al.  Energy performance of building envelopes integrated with phase change materials for cooling load reduction in tropical Singapore , 2016 .

[10]  Jay G. Sanjayan,et al.  Energy saving potential of phase change materials in major Australian cities , 2014 .

[11]  Jedediah B. Alvey,et al.  Simulating the effects of cool roof and PCM (phase change materials) based roof to mitigate UHI (urban heat island) in prominent US cities , 2016 .

[12]  M. Santamouris,et al.  Experimental and numerical assessment of the impact of increased roof reflectance on a school building in Athens , 2012 .

[13]  Anna Laura Pisello,et al.  Dynamic thermal-energy performance analysis of a prototype building with integrated phase change materials , 2015 .

[14]  Yang Yang,et al.  Numerical study on the thermal performance of lightweight temporary building integrated with phase change materials , 2018, Applied Thermal Engineering.

[15]  F. Kuznik,et al.  Experimental assessment of a phase change material for wall building use , 2009 .

[16]  Luisa F. Cabeza,et al.  Use of microencapsulated PCM in concrete walls for energy savings , 2007 .

[17]  André De Herde,et al.  ÉLABORATION D’UN OUTIL D’AIDE À LA CONCEPTION DE MAISONS À TRÈS BASSE CONSOMMATION D’ÉNERGIE: Choix des MATÉRIAUX - ÉCOBILAN de parois , 2010 .

[18]  Hong Ye,et al.  The performance evaluation of shape-stabilized phase change materials in building applications using energy saving index , 2014 .

[19]  Xiaoqin Sun,et al.  Energy and economic analysis of a building enclosure outfitted with a phase change material board (PCMB) , 2014 .

[20]  Xiaoqin Sun,et al.  Development and verification of an EnergyPlus-based algorithm to predict heat transfer through building walls integrated with phase change materials , 2016 .

[21]  Shiming Deng,et al.  Review on building energy performance improvement using phase change materials , 2018 .

[22]  Soteris A. Kalogirou,et al.  Evaluation of the application of Phase Change Materials (PCM) on the envelope of a typical dwelling in the Mediterranean region , 2016 .

[23]  Fitsum Tariku,et al.  Phase change material's (PCM) impacts on the energy performance and thermal comfort of buildings in a mild climate , 2016 .

[24]  Robert F. Boehm,et al.  Modeling of phase change material peak load shifting , 2007 .

[25]  Luisa F. Cabeza,et al.  Thermal stress reduction in cool roof membranes using phase change materials (PCM) , 2018 .

[26]  Pingfang Hu,et al.  A review on applications of shape-stabilized phase change materials embedded in building enclosure in recent ten years , 2018, Sustainable Cities and Society.

[27]  Sheikh Ahmad Zaki,et al.  A review on phase change material (PCM) for sustainable passive cooling in building envelopes , 2016 .

[28]  Majid Amidpour,et al.  Economic optimization of PCM and insulation layer thickness in residential buildings , 2016 .

[29]  Q. Wang,et al.  Parametric analysis of using PCM walls for heating loads reduction , 2018, Energy and Buildings.

[30]  Luisa F. Cabeza,et al.  Passive cooling of buildings with phase change materials using whole-building energy simulation tools: A review , 2017 .

[31]  Monica Rossi,et al.  External walls design: the role of periodic thermal transmittance and internal areal heat capacity , 2014 .

[32]  Dan Zhou,et al.  Thermal analysis of phase change material board (PCMB) under weather conditions in the summer , 2016 .

[33]  Luisa F. Cabeza,et al.  Economic impact of integrating PCM as passive system in buildings using Fanger comfort model , 2016 .

[34]  Naouel Daouas,et al.  Impact of external longwave radiation on optimum insulation thickness in Tunisian building roofs based on a dynamic analytical model , 2016 .

[35]  Richard Perez,et al.  An anisotropic hourly diffuse radiation model for sloping surfaces: Description, performance validation, site dependency evaluation , 1986 .

[36]  Mario A. Medina,et al.  Numerical analysis for the optimal location of a thin PCM layer in frame walls , 2016 .

[37]  Feng Xing,et al.  Energy and economic analysis of building integrated with PCM in different cities of China , 2016 .

[38]  Dong Li,et al.  Numerical analysis on thermal performance of roof contained PCM of a single residential building , 2015 .

[39]  D. Borelli,et al.  Summer thermal performances of PCM-integrated insulation layers for light-weight building walls: Effect of orientation and melting point temperature , 2018, Thermal Science and Engineering Progress.

[40]  Dan Zhou,et al.  Parametric analysis of influencing factors in Phase Change Material Wallboard (PCMW) , 2014 .

[41]  J. Xamán,et al.  Mathematical models of solar chimneys with a phase change material for ventilation of buildings: A review using global energy balance , 2019, Energy.

[42]  John L. Wilson,et al.  Thermal performance of buildings integrated with phase change materials to reduce heat stress risks during extreme heatwave events , 2017 .

[43]  Farah Souayfane,et al.  Phase change materials (PCM) for cooling applications in buildings: A review , 2016 .

[44]  Moncef Krarti,et al.  Implementation of a new CTF method stability algorithm into EnergyPlus , 2015 .

[45]  Yaping Cui,et al.  Heating , Ventilation and Air Conditioning ( ISHVAC ) and the 3 rd International Conference on Building Energy and Environment ( COBEE ) Review of Phase Change Materials Integrated in Building Walls for Energy Saving , 2015 .