PCM integrated to external building walls: An optimization study on maximum activation of latent heat

Arıcı, Müslüm; Bilgin, Feyza; Nižetić, Sandro; Karabay, Hasan

doi:10.1016/j.applthermaleng.2019.114560

Cited by 223 publications

(44 citation statements)

References 60 publications

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“…Traditional methods have also shown good results, in some cases comparable to modern passive thermal control methods [2, 11,12]. Namely, multiple investigations seem to agree on the merits of using PCMs as part of building walls [13][14][15][16]. Wang et al [17] used a 5 cm thick layer of paraffin wax to show that it is possible to reduce heat gain through exterior walls and reduce indoor temperatures from 34.7 to 32 °C.…”

Section: Introductionmentioning

confidence: 99%

Enhanced thermal performance of closed-cell rigid Polyurethane (PU) foam panels using phase change materials (PCMs)

Mohammed¹,

Elnokaly

Aly

et al. 2022

Journal of Advanced Engineering Trends

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The consequences of extreme energy consumption are seen both in the energy and environmental crisis. Subsequently, researchers are attempting to find methods to address this issue. Building envelopes and insulation materials are elements that can effectively influence consumption through their passive effect on thermal comfort levels. Strategies pertaining to this that rely on both, advanced and traditional materials, have been able to show good potential. However, the technical complexity of using such strategies can be impeded from the perspective of developing countries. With the aim of creating effective low-cost feasible insulations through using methods of minimal intricacies, the potentials of simple amalgamation of materials is empirically investigated in this study. In this context, closed-cell rigid Polyurethane (PU) foam is used as a base to hold phase change materials (PCMs) to create two PU/PCM panels, of different PCM content. The thermal performance of the panels is experimentally examined and compared, with hot-arid climates prevailing in developing countries in mind. Results revealed that panels containing PCMs were able to perform more effectively in comparison with regular PU foam panels, and, that increasing the amount of PCM has also shown to be advantageous in this regard.

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Section: Introductionmentioning

confidence: 99%

Enhanced thermal performance of closed-cell rigid Polyurethane (PU) foam panels using phase change materials (PCMs)

Mohammed¹,

Elnokaly

Aly

et al. 2022

Journal of Advanced Engineering Trends

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“…They have been introduced as advanced thermal storage materials in many building applications to meet (or support) the thermal load on an annual basis. In general, PCMs are integrated into building envelope materials and elements, such as the roofs [10], walls [11], [12], floors [13], bricks [14], concretes [15], mortars [16], and transparent components [17], [18]. The main benefits of this integration are to save building energy by reducing thermal loads (cooling and heating loads), shaving and shifting peak load to off-load hours [19], [20].…”

Section: Introductionmentioning

confidence: 99%

Performance Assessment of Phase Change Materials Integrated with Building Envelope for Heating Application in Cold Locations

Al-Yasiri

Szabó

2021

EJENERGY

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Phase change materials (PCMs) are increasingly investigated in the last years as successful in many thermal energy storage applications. In the building sector, PCMs are utilised to improve building efficiency by reducing cooling/heating loads and promoting renewable energy sources, such as solar energy. This paper shows the recent research works on integrating PCMs with building envelope for heating purposes. The main PCM categories and their main characteristics are presented, focusing on PCM types applied for building heating applications. The main methods adopted to incorporate PCMs with building elements and materials are mentioned, and the popular passive and active incorporation techniques are discussed. Lastly, the main contribution to building energy saving is discussed in terms of heating applications. The analysed studies indicated that all PCMs could improve the building energy saving in the cold climates by up to 44.16% regardless of their types and techniques. Several conclusions and recommendations are derived from the analysed studies that are believed to be a guideline for further research.

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“…The amount of PCM incorporated modified some thermal, physical and mechanical properties of mortars. Temperature range and variation also influenced the efficiency of PCM-modified mortars [ 15 , 19 , 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

“…However, the actual effect of the newly designed materials for improving building enclosures can only be fully evaluated by considering the multi-layered composition of real enclosures. Accordingly, some authors have studied the behaviour of multi-layered specimens by assessing new mortars with enhanced properties under different climatic conditions [ 15 , 17 , 18 , 19 , 20 , 21 ]. Climatic chambers can be used to test specific thermal conditions, simulating real environmental conditions [ 15 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

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PCM Cement-Lime Mortars for Enhanced Energy Efficiency of Multilayered Building Enclosures under Different Climatic Conditions

2020

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Phase change materials (PCMs) are promising materials for the energy efficiency improvement of building enclosures, due to their energy storage capacity. The thermal behaviour of a multi-layered building enclosure with five different compositions of PCM cement-lime mortars was evaluated under heating and cooling cycles. The behaviour of cement-lime mortars with 20% of microencapsulated PCM mixed with other additions, such as cellulose fibres and perlite, a lightweight aggregate (LWA), were studied under climate conditions of 15 °C–82% RH (cooling) and 30 °C–33% RH (heating) that were applied with a climatic chamber. Temperature and heat flux on both sides of the multi-layered enclosure were experimentally measured in laboratory tests. Temperature was also measured on both sides of the PCM cement-lime mortar layer. It was observed that the addition of the PCM cement-lime mortar layer delayed the heat flux through the enclosure. During a heating cycle, the incorporation of PCM delayed the arrival of the heat wave front by 30 min (8.1% compared to the reference mortar without PCM). The delay of the arrival of the heat wave front during the cooling cycle after adding PCM, compared to the reference mixture, reached 40.6% (130 min of delay). Furthermore, the incorporation of LWA in PCM cement-lime mortars also improved thermal insulation, further increasing energy efficiency of the building enclosure, and can be used not only for new buildings but also for energy rehabilitation of existing building enclosures.

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PCM integrated to external building walls: An optimization study on maximum activation of latent heat

Cited by 223 publications

References 60 publications

Enhanced thermal performance of closed-cell rigid Polyurethane (PU) foam panels using phase change materials (PCMs)

Enhanced thermal performance of closed-cell rigid Polyurethane (PU) foam panels using phase change materials (PCMs)

Performance Assessment of Phase Change Materials Integrated with Building Envelope for Heating Application in Cold Locations

PCM Cement-Lime Mortars for Enhanced Energy Efficiency of Multilayered Building Enclosures under Different Climatic Conditions

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