Experimental Study on the Development of Fly Ash Foam Concrete Containing Phase Change Materials (PCMs)

Pareek, Sanjay

doi:10.3390/ma15238428

Cited by 9 publications

(4 citation statements)

References 32 publications

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“…Earlier studies indicated that the direct incorporation of PCMs into cementitious composites can lead to potential damage to PCM particles during the mixing process [12]. The OM mixer is said to be suitable for mixing PCM particles into concrete mixtures, as it prevents any damage to the PCM in the cement mixture [18]. In this research, this mixer was used.…”

Section: Proportionsmentioning

confidence: 99%

“…Second, choosing an appropriate mixer also helps prevent cracking. It is also important to use an appropriate mixer to avoid such damage, and the OM mixer is claimed to be the most suitable option because, instead of stirring blades, it has a flexible rubber ball that ensures that the PCM particles are mixed homogeneously without any damage [18].…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of the Thermal Performance of Fly Ash Foam Concrete Containing Phase Change Materials (PCMs)

Bat-Erdene,

Pareek,

Koenders

et al. 2023

Buildings

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The aim of this study was to assess the characteristics of fly ash foam concrete containing two varying temperature ranges of microencapsulated phase change materials (PCMs): PCM28D (26–30 °C) and PCM43D (41–45 °C). In total, five different fly ash foam concrete samples were prepared, and the unit weight of cement was substituted with varying percentages of PCM (0%, 10% and 30%). As a result, differential scanning calorimetry (DSC) analysis revealed that PCM43D-30% exhibited a heat storage capacity of 45.32 °C and 37.89 °C with 42.87 J/g and 41.01 J/g in its liquid and solid phases, respectively. Furthermore, thermocycle analysis indicated that PCM43D-30% maintained the temperature within the stated phase change range for a duration of 7 h. In conclusion, the incorporation of PCMs (28D and 43D) in fly ash foam concrete shows promise in reducing indoor temperature fluctuations, thereby improving energy efficiency. The improved thermal performance can be suitable for various applications such as inner and outside walls of energy-efficient construction designs.

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Section: Proportionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evaluation of the Thermal Performance of Fly Ash Foam Concrete Containing Phase Change Materials (PCMs)

Bat-Erdene,

Pareek,

Koenders

et al. 2023

Buildings

Self Cite

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“…Phase change material walls and roofs are a building envelope that incorporates materials capable of absorbing and releasing thermal energy during phase transitions [215][216][217]. In addition to the storage of thermal energy through latent heat, a portion of the stored energy occurs through sensible heat in both the phase change material and the walls and roofs.…”

Section: Walls and Roofs With Pcmmentioning

confidence: 99%

Enhancement Techniques for the Reduction of Heating and Cooling Loads in Buildings: A Review

Ismail,

Lino,

Henriquez

et al. 2023

J Energ Power Technol

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The building sector is rated as a big consumer of electric energy and emissions, responsible for about 40% of final electric energy consumption. As a result, the Paris Agreement 2015 set a goal for buildings and the construction sector to reach a nearly zero-carbon stage by 2050. This urged most countries to create regulations for the construction sector and invest in energy efficiency programs. The present paper aims to present an updated review of building energy-saving solutions and techniques to contribute to carbon emission mitigation in the building sector. The high energy consumption of a building is mainly due to heating and cooling, which is directly related to the thermal properties of the materials used. Natural ventilation and illumination are other aspects that contribute to the high energy consumption. Considering these issues, the review covers energy-efficient construction materials such as mortars, concrete with PCM, new construction materials with PCM such as 3d printing concrete and geopolymer concrete, and bricks usually used in buildings. Also, the review covers the methods and solutions for energy saving for building heating and cooling. Since transparent windows and façades are essential for structures, their thermal and visual performance is crucial. Established and under-development techniques for windows and façades are presented and discussed. Walls and roofs are usually rated at the top of the weak barriers against a building's heat losses and energy gains. The present paper reviews existing and still under research and development techniques to improve the thermal performance of walls and roofs, such as cool roof and cool walls, walls and roofs with phase change materials (PCM), and ventilated walls and ceilings.Some authors’ comments are presented at the end of each topic. Some possible opportunities for future research and developments are also presented.

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“…In addition, PCM has the characteristics of sustainable and recyclable energy saving [2,3]. The PCMs have been widely applicable in construction, textiles, refrigeration systems, solar energy storage and other fields, and are an important research direction for future green thermal energy [4][5][6][7][8][9]. In the continuous study of PCM, it was found that the direct use of PCM would lead to problems such as leakage of PCM, phase separation and corrosion [10].…”

Section: Introductionmentioning

confidence: 99%

Preparation and application of low temperature protection materials by Na₂SO₄·10H₂O/PS phase change microcapsules

Xie,

Jiang,

Liu

et al. 2024

Mater. Res. Express

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To find the phase change microcapsule material （MEPCM） with suitable temperature and high heat storage energy. The phase change microcapsules with sodium sulfate decahydrate (Na2SO4•10H2O) as core material and polystyrene (PS) as wall material were prepared by emulsion polymerization. The microcapsule is fixed on the cloth of the overalls by coating method, and the thermoregulation fabric is obtained. The microcapsules were characterized by scanning electron microscopy (SEM), differential scanning calorimetry (DSC), thermo-gravimetric analysis (TG) and infrared spectroscopy (FTIR). Fabrics are tested for durability, air permeability and temperature control. The DSC results show that the Tc and Tm of Na2SO4•10H2O/PS microcapsules are 26.0 °C and 58.0 °C, respectively, and the ΔHc and ΔHm are 64.0 J g−1 and 121.1 J g−1, respectively. The TG results show that the first weight loss temperature range is 104.1 ~136.7 °C, and the second weight loss temperature range is 395.5 ~434.6 °C. The infrared spectral characteristic peaks of microcapsules include all the characteristic peaks of Na2SO4•10H2O and PS. In the range of microcapsule phase transition temperature, the cloth treated with 0.5 g MEPCM and 1.5 g MEPCM delayed the tempera-ture change by 16.0 ~23.0 °C and 10.0 ~18.0 °C, respectively, compared with the blank cloth. The fabric treated with 0.5 g microcapsules was subjected to 100 and 300 heating/cooling cycles. Compared with before and after the cycles, the fabric after thermal shock cycles showed a 4.15% and 3.56% reduction in delayed temperature changes rate in a rising and falling temperature environment. Therefore, Na2SO4•10H2O/PS microcapsule material can achieve the goal of heat storage and energy storage, and can be used as a low-temperature operation protection material.

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Experimental Study on the Development of Fly Ash Foam Concrete Containing Phase Change Materials (PCMs)

Cited by 9 publications

References 32 publications

Evaluation of the Thermal Performance of Fly Ash Foam Concrete Containing Phase Change Materials (PCMs)

Evaluation of the Thermal Performance of Fly Ash Foam Concrete Containing Phase Change Materials (PCMs)

Enhancement Techniques for the Reduction of Heating and Cooling Loads in Buildings: A Review

Preparation and application of low temperature protection materials by Na₂SO₄·10H₂O/PS phase change microcapsules

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Experimental Study on the Development of Fly Ash Foam Concrete Containing Phase Change Materials (PCMs)

Cited by 9 publications

References 32 publications

Evaluation of the Thermal Performance of Fly Ash Foam Concrete Containing Phase Change Materials (PCMs)

Evaluation of the Thermal Performance of Fly Ash Foam Concrete Containing Phase Change Materials (PCMs)

Enhancement Techniques for the Reduction of Heating and Cooling Loads in Buildings: A Review

Preparation and application of low temperature protection materials by Na2SO4·10H2O/PS phase change microcapsules

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Product

Resources

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Preparation and application of low temperature protection materials by Na₂SO₄·10H₂O/PS phase change microcapsules