Study of a Double-Layer Trombe Wall Assisted by a Temperature-Controlled DC Fan for Heating Seasons

Ma, Qingsong; Fukuda, Hiroatsu; Kobatake, Takumi; Lee, Myonghyang

doi:10.3390/su9122179

Cited by 17 publications

(4 citation statements)

References 36 publications

(49 reference statements)

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“…1). Through ventilation control, the inverse thermosiphon phenomenon of the traditional Trombe wall can also be improved, and the composite Trombe wall has a higher energy-saving effect than the traditional Trombe wall [21,22].…”

Section: A Composite Trombe Wallmentioning

confidence: 99%

A review of current work in research of Trombe walls

Wang

2021

E3S Web Conf.

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Sustainable architecture and green building are recognized techniques to address the energy and environmental crises. In this regard, the Trombe Wall has also attracted attention for its potential ability to address the energy and environmental crises. Trombe Wall is regarded as a sustainable architectural technology for insulation. This article reviews the classification and configuration of Trombe Wall and the most relevant content of Trombe Wall research carried out in various countries over the past few decades. This review discusses the characteristics of the main subspecies of the Trombe Wall. In terms of content, according to the research methods of different types of Trombe walls, they can be divided into two categories: theoretical simulation research and experimental research. The advantages of this sustainable architectural technology have been highlighted, and future research questions have been identified.

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Section: A Composite Trombe Wallmentioning

confidence: 99%

A review of current work in research of Trombe walls

Wang

2021

E3S Web Conf.

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“…Table 8 provides some references for CFD model used in current Trombe wall studies. [33,58,142,158,189,[196][197][198][199][200][201][202][203]. It is also the calculation base for the other evaluation indexes of Trombe…”

Section: Cfd Modelmentioning

confidence: 99%

Classification, experimental assessment, modeling methods and evaluation metrics of Trombe walls

Wang

et al. 2020

Renewable and Sustainable Energy Reviews

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Solar energy building applications are attracting increasing attention from researchers, engineers, businessmen and officials due to their significant benefits in sustainable development, such as energy saving, cost reduction and environmental protection. Trombe wall, as a classical passive solar heating technique, has been studied for many years. A variety of concepts, methodologies and experiences have been developed during relevant research. Especially in recent years, numerous studies on Trombe wall have been published, which implies a rising attention to this technique. This review focuses on the classification, experimental assessment, modeling methods, and evaluation metrics for Trombe wall. In detail, nine types of Trombe walls are introduced according to their materials, structures and functions. Four experimental methods and two modeling methods of Trombe wall are discussed based on their functions, advantages, disadvantages, and applicability. Three aspects of evaluation metrics for Trombe wall are summarized in terms of technique, economy and environment. Moreover, the current and future research of Trombe wall are discussed at the end. The authors consider this article would be useful for their peers and can facilitate the technical development of Trombe wall.

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“…A double-layer Trombe wall not equipped with PV panels but assisted by a DC fan was investigated in [24], and results proved a thermal performances improvement of 5.6%. Regarding the comparison between the results of a PVTW-G equipped with a DC fan with a traditional installation, in [25] it was determined that in winter the forced ventilation allows for an average indoor temperature increase of 0.5 • C. Simultaneously, the PV cells temperature decreased on average of 1.28 • C with a correspondent improvement of the electric efficiency. Alternatively, to avoid the penalization of the winter heat gain, PV cells can be integrated also into appropriate blinds installed in the air-gap (PVTW-B), as studied in [26].…”

Section: Introductionmentioning

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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Study of a Double-Layer Trombe Wall Assisted by a Temperature-Controlled DC Fan for Heating Seasons

Cited by 17 publications

References 36 publications

A review of current work in research of Trombe walls

A review of current work in research of Trombe walls

Classification, experimental assessment, modeling methods and evaluation metrics of Trombe walls

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

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