Thermal performance and energy saving using phase change materials (PCM) integrated in building walls

Anter, Ayman G.; Sultan, Ahmed Abd El-Razik Ahmed; Hegazi, A.A.; Bouz, M.A. El

doi:10.1016/j.est.2023.107568

Cited by 55 publications

(3 citation statements)

References 47 publications

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“…PCM is a kind of thermal storage material that stores and releases latent heat by changing the physical state, which is extensively employed in the fields of construction energy saving, solar thermal utilization, , and thermal management of electronic devices . Organic PCMs such as paraffin wax (PW), , polyethylene glycol (PEG), ,, lauric acid, and so forth are widely used because of their high latent heat, inexpensive price, moderate phase change temperature, low supercooling, and stable physical and chemical characteristics.…”

Section: Introductionmentioning

confidence: 99%

A Novel Room-Temperature Flexible Phase Change Material for Solar Energy Photothermal Conversion and Battery Thermal Management

Huang,

Zou,

Chen

et al. 2024

ACS Sustainable Chem. Eng.

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In recognition of their excellent capacity for regulating thermal energy storage and release, phase change materials (PCMs) have been rediscovered and received growing significance in advanced solar energy storage and battery thermal management (BTM). Nevertheless, their insufficient thermal conductivity, poor shape stabilization, and high rigidity hinder their application in BTM systems. Herein, we reported a novel stable ordinary temperature flexible phase change material (FPCM) basis of paraffin wax (PW), polyolefin elastomer (POE), and expanded graphite (EG), which efficiently solves the aforementioned problem. And then, through flexibility, the FPCM was smartly mounted on the power batteries by overfilling, making the components compact and efficient. Thermal contact resistance (TCR) while operating the battery pack could be decreased by the flexible wrapping of the FPCM. Results show that the above BTM assembly effectively reduced the TCR to 0.28 °C/W. This FPCM-based reactive cooling BTM ensures that the temperature of the battery pack is kept under a safe temperature (55 °C) at all times. With the effect of EG, the prepared FPCM exhibits a substantial improvement in thermal conductivity, achieving 1.929 W/mK, as well as a prominent photothermal efficiency of conversion (91.2%). Notably, its ultraflexibility, high thermal conductivity, and excellent latent heat provide a convenient way for the thermal management packaging of complex and multimodel electronic devices.

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Section: Introductionmentioning

confidence: 99%

A Novel Room-Temperature Flexible Phase Change Material for Solar Energy Photothermal Conversion and Battery Thermal Management

Huang,

Zou,

Chen

et al. 2024

ACS Sustainable Chem. Eng.

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“…Anter et al [8] investigated experimentally and numerically using different thicknesses and types of PCM to increase the efficiency of a building in the summertime in Aswan, Egypt. The influences of PCM types and locations inside the wall and in different climates were examined.…”

Section: Introductionmentioning

confidence: 99%

Thermal behavior of a PCM-plywood combination as insulation for buildings in a hot summer condition

Al-Akam,

Abduljabbar,

Abdulhamed

et al. 2024

IJHT

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Integrating innovative materials and technologies has become imperative in the quest to design energy-efficient and sustainable buildings. Among these, one of the promising solutions to improve indoor spaces' comfort conditions and energy efficiency is the Phase Change Materials (PCMs). The methodology experimentally explores the impact of combining plywood and paraffin wax as a PCM to improve indoor environments' thermal dynamics under Iraqi conditions. Two wooden boxes are used, with one having its wall stuffed with a PCM. A temperature analysis was made for the internal temperature of each box, walls' surfaces, and PCM temperature for seven days. The impact of the box arrangement on the temperature distribution was also considered. The result showed the temperature inside the modified box is lower than the conventional one by about 3.0 during the peak time from 08:00 hr. to 16:00 hr. The night cooling is slower for the box with the PCM than the conventional one. Having the modified and the non-modified box in arrangement improves the insulation of both of them. Moreover, the findings showed that there is no need for all the rooms to be modified for a building with many rooms. The correct position of the room based on the location of the building in the study area will be enough.

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“…with thick and massive load-bearing materials, which were used in Ouargla City [48]. The increase in thermal capacity could also be obtained with advanced technological solutions (as an alternative to doubling the mass), for example, the use of panels with phase change materials [49,50].…”

mentioning

confidence: 99%

Balancing Thermal Comfort and Energy Consumption in Residential Buildings of Desert Areas: Impact of Passive Strategies

Khechiba,

Djaghrouri,

Benabbas

et al. 2023

Sustainability

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Modern building materials using reinforced concrete are considered the most popular in the production of housing in Algeria, specifically in desert areas such as the city of Ouargla, which is characterized by its hot and arid climate. These dwellings must be more adaptable to this difficult climate. An example is the Ouargla Ksar, which contains traditional dwellings that have proven their effectiveness in terms of the heat problem, as has been revealed in several previously conducted studies, but these dwellings have decreased in demand as they are not suitable for contemporary urban life. Therefore, the aim of this study is to improve the performance of the most recognized house typologies in the city of Ouargla in terms of thermal comfort and energy consumption by using passive strategies. In this regard, we used a research methodology based on field measurements and model simulations wherein we adopted TRNSYS 17 to determine the most often encountered problems. The simulated model was validated by statistical correlation; afterward, a simulation of a full year was run, during which many aspects of construction were studied and compared, such as insulation, the mass of the roof and walls, dimensions and types of windows, orientation, and solar shading. The results show that the studied modern house can be considered inappropriate for a desert climate, and the use of solar shading combined with insulated walls and roof allows for an increase of 35% in annual thermal comfort hours (−0.5 ≤ PMV ≤0.5) and for a 22.73% reduction in the energy consumption. We then compared the simulated scenarios with a traditional house characterized by a bioclimatic architectural design that we used as a reference building. The obtained results may be useful in guiding both refurbishment interventions on existing buildings and the design of new ones. Although the simulated interventions have been widely studied in the literature, it is very important to determine their impact on the perception of the indoor environment and on the energy consumption in this specific geographic area.

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Thermal performance and energy saving using phase change materials (PCM) integrated in building walls

Cited by 55 publications

References 47 publications

A Novel Room-Temperature Flexible Phase Change Material for Solar Energy Photothermal Conversion and Battery Thermal Management

A Novel Room-Temperature Flexible Phase Change Material for Solar Energy Photothermal Conversion and Battery Thermal Management

Thermal behavior of a PCM-plywood combination as insulation for buildings in a hot summer condition

Balancing Thermal Comfort and Energy Consumption in Residential Buildings of Desert Areas: Impact of Passive Strategies

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