Thermal properties of a cement composite containing phase change materials (PCMs) with post-pyrolytic char obtained from spent tyres as a carrier

Ryms, Michał; Januszewicz, Katarzyna; Haustein, Elżbieta; Kazimierski, Paweł; Lewandowski, Witold M.

doi:10.1016/j.energy.2021.121936

Cited by 21 publications

(10 citation statements)

References 39 publications

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“…[33][34][35] Thanks to the elevated chemical resistance of these shells, the capsules can be dispersed in different liquid systems, like resins and cements, increasing their applicability in a wide variety of technical fields. 36,37 The combination of thermal insulation properties of polymeric foam and thermal management properties of PCMs is a practical way to get both the advantages in a simple material. In literature, there are several examples of polymeric foams combined with PCMs.…”

Section: Introductionmentioning

confidence: 99%

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Development of polymeric insulating foams for low‐temperature thermal energy storage applications

Galvagnini

Valentini

Dorigato

2022

J of Applied Polymer Sci

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Refrigeration plays an important role in several sectors in 21st-century life, such as food, air conditioning, healthcare, industry, and energy. In food industry it plays a vital role for reducing the post-harvest losses and in the preservation of food products. In this paper different amounts of a microencapsulated paraffin having a melting temperature of À10 C were used as phase change material (PCM) for the preparation of multifunctional rigid polyurethane foams (PUF) for refrigeration applications. The processability issues, the microstructural and thermo-mechanical properties of the resulting panels were comprehensively investigated. Morphological analysis evidenced a tendency of the incorporated PCM to damage the original closed cell structure of the PUF, and a fully open-cell microstructure was obtained for PCM contents higher than 20 wt%. Differential scanning calorimetry (DSC) evidenced a proportional correlation between the PCM concentration while the thermal energy storage efficiency of the prepared panels was also confirmed by monitoring the trend of the inner temperature in cubic specimens subjected to programmed heating and cooling ramps. Concerning the mechanical response, flexural tests evidenced that the stiffness of the foams was not substantially influenced by the PCM content, while a heavy drop of the failure properties was detected.

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Section: Introductionmentioning

confidence: 99%

“…A popular way to confine PCMs is to encapsulate them within a ceramic or polymeric shell 33–35 . Thanks to the elevated chemical resistance of these shells, the capsules can be dispersed in different liquid systems, like resins and cements, increasing their applicability in a wide variety of technical fields 36,37 …”

Section: Introductionmentioning

confidence: 99%

Development of polymeric insulating foams for low‐temperature thermal energy storage applications

Galvagnini

Valentini

Dorigato

2022

J of Applied Polymer Sci

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“…It is particularly important to define the possibility of a useful application of biochars obtained from the pyrolysis of various types of waste [ 25 , 26 ].Phase change materials are used in construction and other industries, creating new mixtures and composites and allowing for more effective heat storage in their structure. Below, in [ 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 ], examples of work on PCM composites are presented in order to improve their properties and increase the possibility of using the min construction.…”

Section: Introductionmentioning

confidence: 99%

“…The new composite was characterized by having a lower melting temperature of phase conversion than pure PCM by 7.81 °C and full phase conversion reversibility. The use of free PCM with the addition of pyrolytic carbon obtained from tire recycling is presented in work [ 28 ]. The composite obtained as a result of the research was used as an additive to concrete.…”

Section: Introductionmentioning

confidence: 99%

Functioning of Heat Accumulating Composites of Carbon Recyclate and Phase Change Material

Musiał

Pękała

2022

Materials

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The article presents the results of experimental research together with the development of a response function presenting the thermal functioning of a new composite of a phase change material with carbon recyclate. The empirical research proved the improvement of the thermal functioning of the phase change material as a result of modifying its structure with carbon-based recycling material. The conducted experimental tests and statistical analysis proved that the obtained innovative composite is characterized by a more effective distribution of stored heat than the pure phase change material, which resulted in reduction of the heating and cooling time of the package by 10 min. The obtained innovative composite can improve the thermal efficiency of short-term heat storage systems, both in building components and in elements of heating and cooling systems, and translates into their increase in thermal efficiency.

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“…Surface temperature decreased about 4 • C under a test temperature range between 30 • C and 60 • C [24]. The phase change materials also were used in a cement mortar to accumulate heat [25].…”

Section: Introductionmentioning

confidence: 99%

Development of Water Retentive and Thermal Resistant Cement Concrete and Cooling Effects Evaluation

Wang

et al. 2021

Materials

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The high pavement temperature plays an important role in the development of urban heat island (UHI) in summer. The objective of this study was to develop water retentive and thermal resistant cement concrete (WTCC) to enhance the pavement cooling effects. The WTCC was prepared by combining a water retentive material and a high aluminum refractory aggregate (RA) with porous cement concrete (PCC). Water retention capacity test, fluidity test, and compressive strength test were used to determine the composition ratio of the water retentive material. Mechanical performance and cooling effects of WTCC were evaluated by compressive and flexural strength tests and temperature monitoring test. The mass ratios of fly ash, silica fume, cement, and water in the water retentive material were determined as 65:35:15:63.9. The compressive strength and the flexural strength of WTCC after 28 days curing were 30.4 MPa and 4.6 MPa, respectively. Compared with stone mastic asphalt (SMA) mixture, PCC, and water retentive cement concrete (WCC), surface temperature of WTCC decreased by 11.4 °C, 5.5 °C, and 4.1 °C, respectively, and the internal temperatures of WTCC decreased by 10.3 °C, 6.1 °C, and 4.6 °C, respectively. The water retentive material has benefits of strength improvements and temperature reduction for WTCC. Based on the results, WTCC proved to have superior cooling effects and the potential to efficiently mitigate the UHI effects and be used in medium traffic roads.

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Thermal properties of a cement composite containing phase change materials (PCMs) with post-pyrolytic char obtained from spent tyres as a carrier

Cited by 21 publications

References 39 publications

Development of polymeric insulating foams for low‐temperature thermal energy storage applications

Development of polymeric insulating foams for low‐temperature thermal energy storage applications

Functioning of Heat Accumulating Composites of Carbon Recyclate and Phase Change Material

Development of Water Retentive and Thermal Resistant Cement Concrete and Cooling Effects Evaluation

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