Thermal energy storage cement mortar with direct incorporation of organic and inorganic phase change materials

Kulkarni, Prathik; Muthadhi, A.

doi:10.1007/s41062-020-00399-4

Cited by 20 publications

(9 citation statements)

References 34 publications

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“…In a similar study, Kulkarni and Muthadhi [51] analyzed and compared the thermal performance of direct incorporation of PCMs into mortar. Five different PCMs with phase change temperatures in the range of 17-33 • C were used in this study: two inorganic PCMs, HS24 and HS29, and three organic PCMs, OM29, which is a commercially available organic PCM, n-Butyl stearate (n-BS) and polyethylene glycol-600 (PEG-600).…”

Section: At the Composite Scalementioning

confidence: 99%

Review on the Integration of Phase Change Materials in Building Envelopes for Passive Latent Heat Storage

et al. 2021

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Latent heat thermal energy storage systems incorporate phase change materials (PCMs) as storage materials. The high energy density of PCMs, their ability to store at nearly constant temperature, and the diversity of available materials make latent heat storage systems particularly competitive technologies for reducing energy consumption in buildings. This work reviews recent experimental and numerical studies on the integration of PCMs in building envelopes for passive energy storage. The results of the different studies show that the use of PCMs can reduce the peak temperature and smooth the thermal load. The integration of PCMs can be done on the entire building envelope (walls, roofs, windows). Despite many advances, some aspects remain to be studied, notably the long-term stability of buildings incorporating PCMs, the issues of moisture and mass transfer, and the consideration of the actual use of the building. Based on this review, we have identified possible contributions to improve the efficiency of passive systems incorporating PCMs. Thus, fatty acids and their eutectic mixtures, combined with natural insulators, such as vegetable fibers, were chosen to make shape-stabilized PCMs composites. These composites can be integrated in buildings as a passive thermal energy storage material.

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Section: At the Composite Scalementioning

confidence: 99%

Review on the Integration of Phase Change Materials in Building Envelopes for Passive Latent Heat Storage

et al. 2021

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“…Their primary purpose in these applications is to prevent damage caused by abrupt temperature changes, thus lowering the energy per area needed for heating/cooling these materials. PCMs can be incorporated directly [17,18] or encapsulated [19,20]. Drissi et al [21] carried out various studies with PCMs applied directly or encapsulated and, in response, the direct application method caused the PCMs to leak, thus inhibiting water migration and interfering with the hydration process, thereby negatively affecting the development of the materials' strength [22].…”

Section: Introductionmentioning

confidence: 99%

Coaxial Fibres Incorporated with Phase Change Materials for Thermoregulation Applications

Hammes,

Pinheiro,

Segundo

et al. 2024

Applied Sciences

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Nowadays, the growing concern about improving thermal comfort in different structures (textiles, buildings, and pavements, among others) has stimulated research into phase change materials (PCMs). The direct incorporation of PCMs into composite materials can cause mechanical impacts. Therefore, this study focuses on the design of phase change coaxial fibres (PCFs), using commercial cellulose acetate (CA) or recycled CA obtained from cotton fabrics (CAt) as the sheath and polyethylene glycol (PEG) 2000 as the core, via the wet spinning method; the fibres vary in molecular weight, concentration and ejection velocity. The fibres were assessed for their optical, chemical, thermal, and mechanical properties. The presence of PEG2000 is confirmed in the core of the fibres. Thermal analyses revealed a mass loss at high temperatures, attributable to the presence of PEG2000. Notably, the fibres with CA (Mn 30,000) showed superior thermal and mechanical performance. The melting point of PEG2000 incorporated into these PCFs coincided with the melting point of pure PEG2000 (about 55 °C), with a slight deviation, indicating that PCFs were obtained. Finally, the results point to the application of the fibres in civil engineering materials requiring a phase change between 50 and 60 °C, providing promising prospects for their use in applications requiring thermoregulatory properties.

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“…These materials used for traditional solutions allow for the so-called thermoregulation effect. Their task is to absorb energy from the environment, which they can release due to phase changes [3,4,5]. Therefore, the process of phase changes is significantly influenced by the ambient temperature and the type of material used, which mainly depends on the amount of thermal energy collected and released [6,7,8].…”

Section: Introductionmentioning

confidence: 99%

The Use of Phase Change Materials to Improve the External Walls' Thermal Parameters of Heated Buildings

Nakielska,

Kaczmarek

2024

Civil and Environmental Engineering Reports

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Currently, it is estimated that the construction sector consumes over 40% of the energy produced and about 50% of the mass of processed materials. As a consequence, there is a challenge to look for alternative material solutions allowing for the storage and conversion of energy. Phase change materials give us such opportunities. Their introduction leads to additional benefits related to thermal parameters. The work presents a short overview of PCMs along with the possibility of their application. Then, as part of the research, the selected phase change material was applied to the internal plaster layer of an external wall to check its activity. The obtained results were compared to the values of reference samples (without PCM). The proposed solution leads to the improvement of the analyzed partitions' thermal parameters.

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Thermal energy storage cement mortar with direct incorporation of organic and inorganic phase change materials

Cited by 20 publications

References 34 publications

Review on the Integration of Phase Change Materials in Building Envelopes for Passive Latent Heat Storage

Review on the Integration of Phase Change Materials in Building Envelopes for Passive Latent Heat Storage

Coaxial Fibres Incorporated with Phase Change Materials for Thermoregulation Applications

The Use of Phase Change Materials to Improve the External Walls' Thermal Parameters of Heated Buildings

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