Energy saving potential of phase change materials-enhanced building envelope considering the six Moroccan climate zones

Louanate, Amal; Otmani, Rabie El; Kandoussi, Khalid; Boutaous, Mhamed; Daya, Abdelmajid

doi:10.1177/17442591211006444

Cited by 25 publications

(6 citation statements)

References 44 publications

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“…Incorporating thermal mass construction elements into a building envelope is one way to accomplish this goal. 35 Building components integrated with PCMs receive heat from the inner space or the outdoor environment without a large increase in the building’s actual mass. Without increasing energy consumption, the heat transfer rate will be reduced, resulting in increased indoor thermal comfort.…”

Section: Pcm-building Envelope Systemmentioning

confidence: 99%

A conceptual framework for phase change material integration in building components

Ismail

Megahed

Eltarabily

2023

Indoor and Built Environment

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With the recent dramatic growth of the building sector’s energy consumption to provide thermal comfort to consumers, the constraints of climate change and the scarcity of energy supplies have necessitated a wiser and more effective reduction in the amount consumed. As a result, phase change materials (PCMs) have attracted much interest as latent heat thermal storage systems in recent decades. This paper aims to explain the possibility of using PCMs in buildings by establishing an overall conceptual framework for the processes of selecting and integrating PCMs in building sector applications. Moreover, it leads to a comprehensive matrix that identifies the best and most common type of material for each building’s component, as well as its temperature and thickness properties, its thermal impact, and the most popular integration techniques. The findings show paraffin as the major used type in all building components, while salt hydrate is employed in facades. The most prevalent incorporating technique is macro-encapsulation, which prevails in most building components with its direct effect on cooling and heating applications.

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Section: Pcm-building Envelope Systemmentioning

confidence: 99%

A conceptual framework for phase change material integration in building components

Ismail

Megahed

Eltarabily

2023

Indoor and Built Environment

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“…Wind driven rain may have an effect on the heat transfer through exterior wall as well as building energy consumption. However, In Morocco does not (Louanate et al, 2021a(Louanate et al, , 2021b. Based on the meteorological data of Morocco, this case of study is subject to meteorological conditions on a dry days, thus without rain.…”

Section: External Boundary Conditionsmentioning

confidence: 99%

“…Today, several scientific committees are concentrating their efforts on reducing energy consumption of buildings by optimising heating systems and air conditioning and trying innovative building materials (Louanate et al, 2021b). However, ignoring the effect of coupled HAM transfer in building envelopes on energy consumption is not conducive to achieving energy efficiency in buildings (Lucchi et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Development of a numerical approach to assess the effect of coupled heat and moisture transfer on energy consumption of residential buildings in Moroccan context

Idrissi

Belarbi

Ferroukhi

et al. 2021

Journal of Building Physics

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Hygrothermal properties of building materials, climatic conditions and energy performance are interrelated and have to be considered simultaneously as part of an optimised building design. In this paper, a new approach to evaluate the energy consumption of residential buildings in Morocco is presented. This approach is based on the effect of coupled heat and moisture transfer in typical residential buildings and on their responses to the varied climatic conditions encountered in the country. This approach allows us to evaluate with better accuracy the response of building energy performance and the indoor comfort of building occupants. Annual energy consumption, cooling and heating energy requirements were estimated considering the six climatic zones of Morocco. Based on the results, terms related to coupled heat and moisture transfer can effectively correct the existing energy consumption calculations of the six zones of Morocco, which currently do not consider energy consumption due to coupled heat and moisture transfer.

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“…Ideally, the indoor temperature and humidity can be kept within a comfort level without any equipment. Among these passive design research of the building envelopes, phase change materials (PCMs) and hygroscopic materials have been attracting more and more attentions (Almeida et al, 2018; Louanate et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Study on heat and moisture transfer characteristics of HPCMs

Wang,

Shi,

Jin

2023

Journal of Building Physics

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Phase change materials (PCMs) could be used in envelopes to moderate indoor temperature while hygroscopic materials could be used in envelopes to moderate indoor humidity. However, it remains unsolved whether these two materials are mixed to generate a better effect than single materials. Therefore, a transient model for coupled heat and moisture transfer through hygroscopic PCMs (HPCMs) was presented. The numerical cases of periodic boundary conditions and realistic weather conditions were conducted to investigate the heat and moisture transfer characteristics of three gypsum-based HPCMs containing different mass ratios of microencapsulated PCMs. Quantitative analyses were conducted to capture the effects of hygrothermal properties on heat and moisture transfer characteristics of HPCMs. The numerical results show that the mixing of PCMs and hygroscopic materials could generate a better temperature-humidity controlling effect than pure hygroscopic material, and the condensation risks inside the envelopes could also be reduced. Both the studied cases indicate that the HPCMs could be applied in building envelopes to passively moderate the indoor temperature and humidity simultaneously, reducing the building energy consumption and condensation risks inside the envelopes. The effects of hygroscopic and moisture transfer properties on temperature-control performance of HPCMs are relatively small, while the thermal properties play an important role in the improvement of temperature-humidity controlling performance of HPCMs with the increase of PCM concentration.

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Energy saving potential of phase change materials-enhanced building envelope considering the six Moroccan climate zones

Cited by 25 publications

References 44 publications

A conceptual framework for phase change material integration in building components

A conceptual framework for phase change material integration in building components

Development of a numerical approach to assess the effect of coupled heat and moisture transfer on energy consumption of residential buildings in Moroccan context

Study on heat and moisture transfer characteristics of HPCMs

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