Clasificación y selección de materiales de cambio de fase según sus características para su aplicación en sistemas de almacenamiento de energía térmica

Oliver, A.; Neila, F. J.; García-Santos, Alfonso

doi:10.3989/mc.2012.58010

Cited by 22 publications

(17 citation statements)

References 14 publications

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“…There are also studies that calculate the characteristics of the ideal PCM for a specific application (47). These studies corroborate the beneficial thermal behaviour of both micro-encapsulated PCMs embedded in concrete (23) and macroencapsulated PCMs or PCM semi-products lining the structure (26). In any case, it is better to apply the PCM to elements with the maximum exchange surface per unit volume; surface structural elements such as the framework and shear walls.…”

Section: The Design and Use Of Reinforced Concrete Structures Containsupporting

confidence: 70%

“…In addition, mixing the PCM with certain additives and agents can be a way to overcome its deficiencies and thus enhance its essential characteristics: storage capacity, thermal conduc tivity, con gruent melting, stability, etc. Table 2 (7,21,26) shows some of these improvement strategies that result in increased applicability of the materials, since they guarantee their performance (reliability, reproducibility, etc. ).…”

Section: Products Containing Pcmsmentioning

confidence: 99%

“…If we consider the cost in the long term, the time required to recover the initial investment, considering the thermal benefits, varies from 10 to 50 years Table 2. Improvement strategies for PCM encapsulation (7,21,26) Organic PCM Inorganic PCM -Additives to improve their heat transfer.…”

Section: The Design and Use Of Reinforced Concrete Structures Containmentioning

confidence: 99%

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Review of the use of phase change materials (PCMs) in buildings with reinforced concrete structures

Pons¹,

Aguado²,

Fernández³

et al. 2014

Mater. construcc.

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Phase change materials are capable of storing and releasing energy in the form of heat in determined temperature ranges, so to increase a building's thermal inertia, stabilize its indoor temperatures and reduce its energetic demand. Therefore, if we used these materials we could have more energetically efficient buildings. Nevertheless, are these materials most appropriate to be used in buildings? Could the incorporation of phase change materials in buildings with concrete structures be generalized? This article aims to carry out a review of these phase change materials from construction professionals' points of view, study their applications for buildings with reinforced concrete structures and the key points for these applications, draw conclusions and provide recommendations useful for all professionals within the sector who are considering the application of these materials. RESUMEN:Revisión crítica del uso de materiales de cambio de fase en edificios con estructuras de hormigón armado. Los materiales de cambio de fase son capaces de almacenar y liberar energía en forma de calor en un determinando rango de temperaturas, y así aumentar la inercia térmica de un edificio, estabilizar las temperaturas en el interior y reducir la demanda energética. En consecuencia, si utilizáramos estos materiales podríamos tener un parque de edificios más eficientes energéticamente. No obstante, ¿estos materiales son apropiados para usarse en edificios? ¿Se podría generalizar la incorporación de materiales de cambio de fase en edificios con estructuras de hormigón? Este artículo tiene como objetivos hacer una revisión del estado del arte de estos materiales de cambio de fase desde el punto de vista de los profesionales de la construcción, estudiar las aplicaciones en edificios con estructuras de hormigón armado y los puntos clave para estas aplicaciones, extraer conclusiones y recomendaciones útiles para los profesionales del sector que se planteen la utilización de estos materiales.

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Section: The Design and Use Of Reinforced Concrete Structures Containsupporting

confidence: 70%

Section: Products Containing Pcmsmentioning

confidence: 99%

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Review of the use of phase change materials (PCMs) in buildings with reinforced concrete structures

Pons¹,

Aguado²,

Fernández³

et al. 2014

Mater. construcc.

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“…This is because the decrease in the Reynolds number (indicated in the figure) caused by the increase in the distance has a greater effect on Equation 7 than the increase in that ratio. The pressure drop in the tube bank is determined by applying the relationship developed by Zukauskas et al [14,15]. The calculated pressure drop is only 60 Pa for the most critical case in which and are low, so it is not considered a relevant issue when selecting the distances between tubes.…”

Section: Resultsmentioning

confidence: 99%

Methodology for the design of a thermal energy storage module for asolar tunnel dryer using phase change materials (PCM)

Escobar-Ochoa

Cuervo-Andrade

Rincon-Prat³

2018

revuin

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Este artículo puede compartirse bajo la licencia CC BY-ND 4.0 y se referencia usando el siguiente formato: M. Escobar, S. Cuervo, S. Rincón, "Methodology for the design of a thermal energy storage module for a solar tunnel dryer using phase change materials (PCM)," Rev. UIS Ing., vol. 17, no. 1, pp. 9-20, 2018. Doi: https://doi.org/10.18273/revuin.v17n1-2018001 Vol. 17, No. 1, pp. 9-20, enero-junio 2018 Revista UIS Ingenierías ABSTRACTThe increasing interest in renewable energy has opened an opportunity to apply this technology in the industry and domestic sector. However, in solar-based systems, limitations associated with the intermittent energy delivery can cause unstable performance and unreliable designs. Weather fluctuations, such as wind speed and appearance of clouds, are considered the principal factors that contribute to the instability in the amount of energy available. In the agriculture, for instance, the use of thermal solar energy applied to dryer systems is highly desirable since the process is energetically very intensive. Therefore, it is feasible to design dryer devices for agricultural products, with important economic returns due to energy savings and the value added to the materials processed. Thus, the energy performance of systems that operate with solar thermal energy can be improved by introducing an energy accumulation system based on the use of phase change materials (PCM). The detailed methodology for the design of a thermal energy accumulation system for a tunnel dryer type Hohenheim for agricultural products is presented. As PCM, paraffin is chosen because its melting temperature is near 60 °C, which is an appropriate value for the drying temperature of this kind of products. The theoretical calculations show that the value of the surface temperature has an important influence on phase change calculations and the total mass of PCM required in the system. On the other hand, the heat transfer is dominated by the external heat transfer in the air. Additionally, the tube diameter significantly affects the phase change time. The results obtained are important and make a significant contribution to the knowledge required for implementations of similar systems, since little has been explored in this field in regions where the weather conditions are suitable to unexpected changes. The design should be implemented in an experimental prototype of Hohenheim dryer and its performance is to be determined based on measurement of the energy change of the drying air.KEYWORDS: Renewable energy; solar dryer; PCM; heat transfer. RESUMENEl creciente interés en las energías renovables ha abierto una oportunidad para aplicar esta tecnología en la industria y el sector nacional. Sin embargo, en sistemas basados en energía solar, las limitaciones asociadas con la entrega de energía intermitente pueden causar un rendimiento inestable y diseños poco confiables. Las fluctuaciones climáticas, como la velocidad del viento y la apariencia de las nubes, se consideran los principales factores que contribuyen...

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“…The collected energy is carried by the fluid directly to a process requiring heat or to a thermal energy storage system and subsequently withdrawn for use (Kalogirou, 2004). There are different forms of storing thermal energy, among them are the storage by sensible heat, by the thermochemical reaction and by latent heat (Oliver et al, 2010 The most common forms used are by sensible heat and latent heat. Energy stored in the form of sensible heat requires a large volume of the material used to store, while latent heat storage such as phase change materials (PCM) provides higher storage density and little temperature variation during phase change.…”

Section: Introductionmentioning

confidence: 99%

Exergy analysis of a flat plate solar collector with latent heat storage by phase change material for water heating applications at low temperature

Ortega¹,

Carmona²

2017

JCUA

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Clasificación y selección de materiales de cambio de fase según sus características para su aplicación en sistemas de almacenamiento de energía térmica

Cited by 22 publications

References 14 publications

Review of the use of phase change materials (PCMs) in buildings with reinforced concrete structures

Review of the use of phase change materials (PCMs) in buildings with reinforced concrete structures

Methodology for the design of a thermal energy storage module for asolar tunnel dryer using phase change materials (PCM)

Exergy analysis of a flat plate solar collector with latent heat storage by phase change material for water heating applications at low temperature

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