The Influence of Glazing on the Functioning of a Trombe Wall Containing a Phase Change Material

Lichołai, Lech; Starakiewicz, A.; Krasoń, Joanna; Miąsik, Przemysław

doi:10.3390/en14175243

Cited by 10 publications

(7 citation statements)

References 36 publications

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“…For this reason, the solution for some of these limitations is readymade thermal energy batteries, which often form part of active heat and cold distribution systems. Some examples of PCM use in combination with opaque partitions, as described by Lichołai et al [59], are shown in Figure 6.…”

Section: Phase Change Materials In Opaque Partitionsmentioning

confidence: 99%

Modern Thermal Energy Storage Systems Dedicated to Autonomous Buildings

2023

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This paper presents a detailed analysis of the research into modern thermal energy storage systems dedicated to autonomous buildings. The paper systematises the current state of knowledge concerning thermal energy storage systems and their use of either phase change materials or sorption systems; it notes their benefits, drawbacks, application options, and potential directions for future development. The rapid proliferation of studies on installation systems, new composites, and phase change materials requires a systematisation of the subject related to short- and long-term thermal energy storage in building structures. This paper focuses on assessing the validity of the current improved thermal energy storage solutions for buildings with very high energy efficiency standards and buildings that are energy-independent. The paper presents the current results of the energy and economic analyses of the use of heat storage systems in buildings. This paper shows the optimal heat storage systems for autonomous buildings. Moreover, it also shows other potential ways to develop systems and composites capable of storing heat in autonomous buildings.

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Section: Phase Change Materials In Opaque Partitionsmentioning

confidence: 99%

Modern Thermal Energy Storage Systems Dedicated to Autonomous Buildings

2023

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“…Moreover, the high thermal inertia allows for exploiting the stored thermal energy also at night. One or more transparent covers allow for separating the absorbing surface from the external environment to limit thermal losses [32], forming an air gap in which the thermo-circulation occurs (see Figure 1). The transparent surface is equipped with an overhang opportunely sized to create shading in summer.…”

Section: Trombe Wall Operationmentioning

confidence: 99%

A Calibration of the Solar Load Ratio Method to Determine the Heat Gain in PV-Trombe Walls

et al. 2022

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The Trombe wall is a passive system used in buildings that indirectly transfers thermal energy to the adjacent environment by radiation and convection, and directly by the thermo-circulation that arises in the air cavity delimited between a transparent and an absorbing surface. Nevertheless, the latter is painted black to increase the energy gains, but this produces a negative visual impact and promotes the overheating risk in summer. To mitigate these aspects, a hybrid Trombe wall equipped with PV panels can be employed. The PV installation results in a more pleasing wall appearance and the overheating risk reduces because part of the absorbed solar radiation is transformed into electricity. To determine the actual performance of a such system, transient simulation tools are required to consider properly the wall thermal storage features, variation of the optical properties, air thermo-circulation, and PV power production. Alternatively, regarding the traditional Trombe wall, the literature provides a simplified empirical method based on the dimensionless parameter solar load ratio (SLR) that allows for preliminary evaluations and design. In this paper, the SLR method was calibrated to determine the monthly auxiliary energy to be supplied in buildings equipped with PV-Trombe walls in heating applications. The SLR method was tuned by a multiple linear regression by data provided by TRNSYS simulation that allowed to obtain the energy performances in actual conditions of PV-Trombe walls installed on the same building but located in different localities. The comparison between the TRNSYS results and the calibrated SLR method determined average errors ranging between 0.7% and 1.4%, demonstrating the validity of the proposed methodology.

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“…Materials with high thermal mass, such as masonry or concrete, can store and release heat effectively. The type of glazing used on the outer surface of the Trombe wall affects the amount of solar radiation transmitted [8,9]. Low-emissivity (low-e) glass can help control heat transfer.…”

Section: Introductionmentioning

confidence: 99%

CFD Analysis for a New Trombe Wall Concept

Bulmez,

Brezeanu,

Dragomir

et al. 2024

Buildings

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The envelope (façade) of a building is the first barrier between the exterior and the interior of the building and withstands the highest variation in temperature and solar radiation. Trombe walls are used to take advantage of that and contribute to the heating of interior air, helping the heating system. In this study, a new Trombe wall design is presented to contribute significantly to the indoor ventilation of residential buildings. For this, an exterior wall equipped with a proposed Trombe system was studied in a numerical simulation analysis. The proposed systems consist of two important sections, an exterior one and an interior one. The air cavities on the exterior of the wall, covered with silica glass, are the first heat-transfer layer. The secondary layer used for heat transfer, on the interior, is comprised of a MPCLB wall of 115 mm. The air circulation from the exterior to the interior was established as forced convection with a ventilator. The air circulates through the first heating layer on the exterior air cavities and then passes through the second heating layer on the interior MPCLBs. Two cities in Romania were considered to represent the coldest and hottest climates in Romania. Brașov represents the cold climate and Constanța represents the hot climate. In the investigation, both the presence and absence of solar radiation were taken into account. In total, four cases were established. For all four cases, monthly research was made using monthly mean temperatures, and direct and diffuse solar radiation. The results are promising and illustrate that the system works best during the transitional seasons of spring and autumn. The lower the outdoor temperature, the higher the temperature can be increased. Overall, solar radiation accounted for an average 2 °C increase. The temperature increase varied between 3.4 °C and 15.99 °C for Brașov and between 6.42 °C and 12.07 °C in Constanța. This study presents an alternative way to use the Trombe wall for indoor ventilation purposes throughout the year, compared to traditional uses for the Trombe wall for indoor heating.

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The Influence of Glazing on the Functioning of a Trombe Wall Containing a Phase Change Material

Cited by 10 publications

References 36 publications

Modern Thermal Energy Storage Systems Dedicated to Autonomous Buildings

Modern Thermal Energy Storage Systems Dedicated to Autonomous Buildings

A Calibration of the Solar Load Ratio Method to Determine the Heat Gain in PV-Trombe Walls

CFD Analysis for a New Trombe Wall Concept

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