Los Materiales de Cambio de Fase (MCF) empleados para la acumulación de energía en la arquitectura. Su aplicación en el prototipo Magic Box

González, Francisco Javier Neila; Román, C. Acha; García, Evaristo; Frutos, César Bedoya

doi:10.3989/mc.2008.v58.i291.102

Cited by 4 publications

(3 citation statements)

References 6 publications

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“…Figure21: Floor supply air conditioning system using granular phase change material[102] In contrast to the previous study, González et al experimentally tested a passive approach of the PCM for energy storage in architecture combined with the Magic Box prototype in Madrid, Spain, Washington, U.S.A., and Beijing, China[103]. The PCM (Tm = 23 °C) was placed into the floor where the performance was investigated during heating and cooling periods combined with natural ventilation.…”

mentioning

confidence: 99%

Enhancing performance of building elements with phase change materials for cooling with air-based systems

Zavrl

Mankibi

Dovjak

et al. 2022

Journal of Energy Storage

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mentioning

confidence: 99%

Enhancing performance of building elements with phase change materials for cooling with air-based systems

Zavrl

Mankibi

Dovjak

et al. 2022

Journal of Energy Storage

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“…This heat is released later, helping to maintain the house in comfort even when sun is not present. In summer, cool night air is force to circulate in the floor plenum solidifying the PCM gels and during the day the PCM acts as a heat sink which absorbs the heat excess, minimizing the house overheating [16].…”

Section: Upm -Technical University Of Madrid (2005)mentioning

confidence: 99%

“…The system could work as passive one, but forced air improves the thermal exchange and increases efficacy of the system [15]. The house automation system controls periods when the fans must operates, the direction of the air flow as well as the opening of house windows for cross ventilation and the activation of the peltier dehumidification system [16]. In the winter days, the gels melt (storage heat) by direct solar gain of the south glazing façade and by interior warn air recirculation.…”

Section: Upm -Technical University Of Madrid (2005)mentioning

confidence: 99%

Latent heat thermal energy storage systems in lightweight construction: review of PCM applications in Solar Decathlon houses

Rodríguez-Ubiñas¹,

Ruiz-Valero²,

Sánchez³

et al. 2011

WIT Transactions on Ecology and the Environment

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The use of thermal mass in buildings is an effective way to improve the building's interior comfort in places with high diurnal temperature variation. Combined with other passive strategies, thermal mass can play an important role in the energy efficiency of the building, minimizing the necessity of the traditional conditioning systems. However contemporary construction tends to industrializing light weight systems with low thermal mass. An innovative way to add the thermal mass` benefits to the buildings is the use of the latent heat thermal storage capacity of the Phase Change Materials (PCM). In the Solar Decathlon, solar houses competition organized by the United States Department of Energy. The houses are tested and monitored in Washington DC, where the use of short term thermal storage systems is adequate to maintain the interior comfort and reduce energy consumption, therefore many teams had incorporated PCM in theirs industrialized lightweight houses. In this paper the solutions on the application of PCM used in this competition are discussed.

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Investigation of the effectiveness of microencapsulated phase change materials for bitumen rheology

Çaktı¹,

Erden

Gündüz³

et al. 2022

Intl J of Energy Research

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Summary The rheological properties of asphalt pavement have temperature susceptibility. Bitumen is binding material and affects directly the properties of the asphalt mixture. Asphalt pavements become hard and brittle as bitumen is more sensitive to cracking in cold regions. Phase change materials (PCMs) can be used to prevent or delay freezing asphalt pavements at low temperatures. For that reason, raw n‐tetradecane possessing a melting point of around 6°C was preferred as an organic PCM in this study and bitumen 10/20 and 50/70 were modified with n‐tetradecane. It was observed that PCM extremely rose the penetration grade of bitumen and decreased softening point due to the leakage of PCM. Three new microencapsulated phase change materials (MPCMs) were synthesized with different shell materials through emulsion polymerization technique to prevent the leakage of the PCM. Poly(methyl methacrylate) (PMMA) based MPCMs (MPCM‐1 and MPCM‐2) and polystyrene (PS) based MPCM (MPCM‐3) were prepared with a crosslinker monomer, ethylene glycol dimethacrylate (EGDM). In addition, 2‐hydroxyethyl acrylate (2‐HEA) and 2‐hydroxyethyl methacrylate (2‐HEMA), were used as comonomer in the fabrication of MPCM‐1 and MPCM‐2, respectively. The latent heat storage capacities of MPCM‐1, MPCM‐2, and MPCM‐3 were calculated as 53.3, 52.2, and 116.9 J/g, respectively. The results of the differential scanning calorimeter (DSC) analyses revealed that PS based MPCM had higher latent heat than PMMA based MPCMs. Scanning electron microscope (SEM) and particle size distribution (PSD) analyses indicated that the MPCMs had nearly spherical geometry and particles distributed around the mean particle size unimodally. Thermogravimetric analysis (TGA) exhibited that MPCMs degraded at considerably high temperatures as compared to the possible ambient ensuring high thermal durability. The current study also aims at evaluating the rheological properties of bitumen modified with PCMs and MPCMs. For this reason, softening point and penetration grade of bitumen modified with PCM and MPCM were studied. Softening point and penetration grade analyses showed that microcapsules considerably prevent leakage of PCM. Dynamic Shear Rheometer (DSR) analyses were also investigated to evaluate physical properties of bitumen modified with PCM and MPCM. DSR analyses revealed that the addition of MPCMs into bitumen preserved elastic structure and prevented softening of the bitumen as compared to the addition of PCM.

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Los Materiales de Cambio de Fase (MCF) empleados para la acumulación de energía en la arquitectura. Su aplicación en el prototipo Magic Box

Cited by 4 publications

References 6 publications

Enhancing performance of building elements with phase change materials for cooling with air-based systems

Enhancing performance of building elements with phase change materials for cooling with air-based systems

Latent heat thermal energy storage systems in lightweight construction: review of PCM applications in Solar Decathlon houses

Investigation of the effectiveness of microencapsulated phase change materials for bitumen rheology

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