vegetable fat: A low-cost bio-based phase change material for thermal energy storage in buildings

Boussaba, Lisa; Makhlouf, Saïd; Foufa, Amina; Lefèbvre, Gilles; Royon, Laurent

doi:10.1016/j.jobe.2018.10.022

Cited by 55 publications

(12 citation statements)

References 52 publications

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“…Inorganic PCMs have problems with phase separation and undercooling. Organic PCMs have the advantages of good crystallization performance, good stability, a high latent heat of phase change, no phase separation, and low undercooling, making them the first choice for phase-change energy storage materials. , Among them, fatty acids are considered as potential PCMs. − However, due to the high melting point of most single fatty acids, leakage occurs during the phase-change process, which limits their application in buildings. However, a variety of single fatty acids can be combined into binary or multiple fatty acid mixtures with a specific mass ratio chosen to reduce their melting point.…”

Section: Introductionmentioning

confidence: 99%

Study of Capric–Palmitic Acid/Clay Minerals as Form-Stable Composite Phase-Change Materials for Thermal Energy Storage

2021

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As an important method to effectively improve energy efficiency, the study of thermal energy storage is particularly important. In this study, six types of clay mineral-based form-stable phase-change materials (FSPCMs) were prepared by the vacuum adsorption method. The adsorption capacity of vermiculite and diatomite was satisfactory, and sepiolite showed the worst adsorption capacity. Clay minerals can delay the thermal decomposition rate of capric–palmitic acid (CA–PA), and the specific surface area and pore capacity of clay minerals all decrease dramatically after the clay minerals have absorbed CA–PA. FSPCMs exhibited a higher heat storage and release efficiency and reflects a certain temperature control performance. In addition, only physical adsorption between the CA–PA and the clay material occurred, and no chemical reaction occurred. Finally, FSPCMs still have high latent heat of phase transition, and they can be used for low-temperature thermal energy storage.

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Section: Introductionmentioning

confidence: 99%

Study of Capric–Palmitic Acid/Clay Minerals as Form-Stable Composite Phase-Change Materials for Thermal Energy Storage

2021

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“…Chauhan et al [22] point to the increasing interest in PCM based on vegetable oils such as coconut, palm, and soybean oils. These materials can operate in desired temperatures for construction applications and remain thermally stable for many years [22,23]. Moreover, vegetable oils are a natural and rapidly renewable resource with low embodied energy and are non-toxic and biodegradable [24].…”

Section: Coconut Oil As Pcmmentioning

confidence: 99%

Climate-Based Analysis for the Potential Use of Coconut Oil as Phase Change Material in Buildings

et al. 2021

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One of the most efficient measures to reduce energy consumption in buildings is using passive thermal comfort strategies. This paper shows the potential of coconut oil as a bio-based phase change material (PCM) incorporated into construction components to improve the thermal performance of buildings for several climates, due to its environmental advantages, wide availability, and economic feasibility. The thermophysical properties of coconut oil were determined through differential scanning calorimetry. Numerical simulations were conducted in ESP-r, comparing an office space with a gypsum ceiling to one with coconut oil as PCM for 12 climate types in the Köppen–Geiger classification. The results show that coconut oil is a suitable PCM for construction applications under tropical and subtropical climates. This PCM can provide year-round benefits for these climates, even though a higher melting point is needed for optimum performance during hotter months. The highest demand reduction of 32% and a maximum temperature reduction of 3.7 °C were found in Mansa, Zambia (Cwa climate). The best results occur when average outdoor temperatures are within the temperature range of phase change. The higher the diurnal temperature range, the better the results. Our findings contribute to a better understanding of coconut oil in terms of its properties and potential for application in the building sector as PCM.

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“…Besides, in many studies, it was remarkable to note that the role of organoclay has gained many interests in both academic and industrial research [12] due to the excellent performance as well as the way to modify, to as claybased composite [13]. It's important to mention that natural fibers have grown to develop environmental-friendly construction materials.…”

Section: Introductionmentioning

confidence: 99%

Nanofiber Cellulose Grafted with Lauric Acid as a New Phase Change Material (PCM) used in Buildings for Thermal Energy Storage

Zormati¹,

Aloulou²,

Sammouda³

2022

Preprint

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In this research, Cellulose Nanofibers (NFC) modified with a eutectic of lauric acid (LA) was prepared as a new form-stable phase change material (NFC-LA). Thermal properties of this composite were investigated by Differential Scanning Calorimetry (DSC). The results revealed that the melting temperature and latent heat of NFC/LA were 21.56 °C and 88.5 J/g, respectively; and the super cooling degree for the NFC-LA composite decreased to 13.99 °C when compared to 20.28 °C of the pure lauric acid. Natural clay was purified and modified with Cetyltrimethyl ammonium bromide (CTAB) to prepare organoclay. Through FTIR spectra, we have confirmed that the clay was successfully modified. The PCM-composite was then added to the organoclay to obtain a new composite denoted NFC-LA-OC. this latter was added to cement and was investigated as a reinforcement material in cement mortars for thermal energy storage application. The prepared material can both solve the leakage problem associated to the phase change material, and reduce or even avoid the use of heating and air conditioning systems, which are energy-intensive systems, and therefore reduce energy consumption.

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vegetable fat: A low-cost bio-based phase change material for thermal energy storage in buildings

Cited by 55 publications

References 52 publications

Study of Capric–Palmitic Acid/Clay Minerals as Form-Stable Composite Phase-Change Materials for Thermal Energy Storage

Study of Capric–Palmitic Acid/Clay Minerals as Form-Stable Composite Phase-Change Materials for Thermal Energy Storage

Climate-Based Analysis for the Potential Use of Coconut Oil as Phase Change Material in Buildings

Nanofiber Cellulose Grafted with Lauric Acid as a New Phase Change Material (PCM) used in Buildings for Thermal Energy Storage

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