Numerical investigation of cascaded phase change materials use in transpired solar collectors

Pop, Octavian G.; Berville, Charles; Bode, Florin; Croitoru, Cristiana

doi:10.1016/j.egyr.2022.06.114

Cited by 7 publications

(2 citation statements)

References 13 publications

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“…In order to eliminate or reduce the waste of surplus energy produced during periods with high-intensity solar radiation, the use of TES materials becomes essential [28]. In this way, the surplus energy can be stored for use during cloudy periods or during the night, thus increasing the solar collectors' overall efficiency, number of operating hours, and exterior air variation [9,29]. Moreover, incorporating PCMs into conventional building materials has shown significant promise for enhancing energy efficiency.…”

Section: Thermal Energy Storage Systems Using Phase-change Materials ...mentioning

confidence: 99%

Harnessing Nanomaterials for Enhanced Energy Efficiency in Transpired Solar Collectors: A Review of Their Integration in Phase-Change Materials

Croitoru,

Bode,

Calotă

et al. 2024

Energies

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The building sector plays an important role in the global climate change mitigation objectives. The reduction of CO2 emissions and energy consumption in the building sector has been intensively investigated in the last decades, with solar thermal energy considered to be one of the most promising solutions due to its abundance and accessibility. However, the discontinuity of solar energy has led to the study of thermal energy storage to improve the thermal performance of solar thermal systems. In this review paper, the integration of various types of phase-change materials (PCMs) in transpired solar collectors (TSC) is reviewed and discussed, with an emphasis on heat transfer enhancements, including nanomaterials. Thermal energy storage applied to TSC is studied in terms of design criteria, materials technologies, and its impact on thermal conductivity. This review highlights the potential of nanomaterial technology integration in terms of thermal performance improvements. The utilization of nanomaterials in solar walls holds the potential to significantly enhance their performance. The integration of diverse materials such as graphene, graphite, metal oxides, and carbon nanoparticles can pave the way for improving thermal conductivity.

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Section: Thermal Energy Storage Systems Using Phase-change Materials ...mentioning

confidence: 99%

Harnessing Nanomaterials for Enhanced Energy Efficiency in Transpired Solar Collectors: A Review of Their Integration in Phase-Change Materials

Croitoru,

Bode,

Calotă

et al. 2024

Energies

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“…The obstacle is used in order to guide air through the system for better flow, while the phase change material inside behaves like a thermal mass [12]. In addition, Pop et al [13] uses a transpired solar air collector equipped with a cascading phase change material for drying products. Similarly, Bejan et al [14] also uses opaque solar collectors transpired in buildings to do an experimental study to improve efficiency and integrate phase change materials to allow direct heating of outdoor air in buildings.…”

Section: Introductionmentioning

confidence: 99%

Contribution to the modelling of air flows in a conical inlet drying chamber

Mamoudou

Abraham

Berville

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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The main objective of this study is to provide input on the mesh and temperature distribution inside the drying chamber for a building-integrated dryer for food preservation to obtain a uniform temperature profile. For this, we varied the angle of inclination of 20° and 30° subsequently we also varied the speed of the air flow of (1m/s; 1,2 m/s; 1,5 m/s; 1,7 m/s and 2 m/s), the temperature at the level of the walls is the ambient temperature it is 25°C and the air inlet temperature is set at 55°C. The results obtained showed that the temperature distribution inside the different drying chambers is almost uniform for an inclination of 30° against for an inclination of 20° it is uniform on the bend of the cone of the diffuser but not in the drying chamber. This uniform distribution reduces the drying time of the product. It can therefore be concluded that the variation in tilt angle and drying speed has a significant effect on the drying time of the product.

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Simulation study of dynamic building insulation with transpired solar collectors

Fawaier,

Róbert,

Bokor

2024

Energy Reports

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Numerical investigation of cascaded phase change materials use in transpired solar collectors

Cited by 7 publications

References 13 publications

Harnessing Nanomaterials for Enhanced Energy Efficiency in Transpired Solar Collectors: A Review of Their Integration in Phase-Change Materials

Harnessing Nanomaterials for Enhanced Energy Efficiency in Transpired Solar Collectors: A Review of Their Integration in Phase-Change Materials

Contribution to the modelling of air flows in a conical inlet drying chamber

Simulation study of dynamic building insulation with transpired solar collectors

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