Experimental study of the heating performance of a Trombe wall with a new design

Rabani, Mehran; Kalantar, Vali; Dehghan, Ali Akbar; Faghih, Ahmadreza K.

doi:10.1016/j.solener.2015.06.002

Cited by 99 publications

(39 citation statements)

References 26 publications

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“…In our proposal, an external wooden shutter, to be made from local palm-tree wood and painted with a double layer of white albedo paint with a high reflectivity, is proposed for summer sun protection. Moreover, using the Trombe wall as a solar chimney in summertime proved to be applicable and efficient in enhancing ventilation, which is also discussed in recent studies (Rabani et al, 2015). We added a thin layer of 1 mm aluminum sheeting on the top vent.…”

Section: Discussion and Analysis For Design Development Performance Omentioning

confidence: 94%

“…We tried to pay attention to the design features along with the functionality and efficiency of the system. Recent studies have still focused on the efficiency but ignored the aesthetics (Rabani et al, 2015), which is sometimes considered a barrier in users' acceptance of Trombe walls. Our Trombe wall proposal is integrated into the façade.…”

Section: Discussion and Analysis For Design Development Performance Omentioning

confidence: 99%

“…A considerable number of scholars have investigated glazed ventilated and non-ventilated Trombe walls by studying its steady state performance (Hami et al, 2012), modeling techniques (Bojić et al, 2014), thermal efficiency (Burek and Habeb, 2007), and in-situ performance (Rabani et al, 2015). Some strategies have been adopted to enhance the efficiency of Trombe walls in summertime, improving natural ventilation (Stazi et al, 2012a), the provision of shade (Chen et al, 2006) and proper insulation (Stazi et al, 2012b).…”

Section: Previous Studiesmentioning

confidence: 99%

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Ventilated Trombe wall as a passive solar heating and cooling retrofitting approach; a low-tech design for off-grid settlements in semi-arid climates

Dabaieh

Elbably

2015

Solar Energy

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. (2015). Ventilated Trombe wall as a passive solar heating and cooling retrofitting approach; a low-tech design for off-grid settlements in semi-arid climates. Solar Energy, 122, 820-833. https://doi.org/10.1016Energy, 122, 820-833. https://doi.org/10. /j.solener.2015 General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal Take down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. AbstractIn the coming years, it is anticipated that if we continue with the same pace of energy consumption, communities will continue to face three major challenges; a mounting increase in energy demands, pollution, and global warming. On a local scale, Egypt is experiencing one of its most serious energy crises in decades. The energy consumed in indoor cooling and heating is the biggest portion of total energy consumption in residential buildings. This paper is an experimental simulation study for building retrofitting in off-grid settlements in semi-arid climates, using Trombe wall as a low-tech passive heating and cooling solution. In this study, we made developments to the conventional classic Trombe wall using occupant-centered design and living lab experimental methods. The thermal efficiency of the proposed Trombe wall design is simulated during winter and summer peaks. In the proposed design we used gray paint instead of typical black paint in addition to 15 cm reversible natural wool insulation and two 3 mm thick roll-up wool curtains. The new design reduced the heating load by 94% and reduced the cooling load by 73% compared to the base case with an annual energy savings of 53,631 kW h and a reduction in CO 2 emissions of 144,267 kg of CO 2 . The living lab test proved that the proposed design of the Trombe wall is economically viable and the payback time is 7 months. It is recommended that the proposed design be monitored for a whole year to have an accurate assessment of its efficiency. A post occupancy evaluation is also needed to measure local residents' acceptance and perceived comfort after retrofitting.

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Section: Discussion and Analysis For Design Development Performance Omentioning

confidence: 94%

Section: Discussion and Analysis For Design Development Performance Omentioning

confidence: 99%

Section: Previous Studiesmentioning

confidence: 99%

See 1 more Smart Citation

Ventilated Trombe wall as a passive solar heating and cooling retrofitting approach; a low-tech design for off-grid settlements in semi-arid climates

Dabaieh

Elbably

2015

Solar Energy

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“…The use of thick stone walls and walls filled with water, and painting these walls black, are methods which have been used to increase heat storage [8]. Rabani (2015) presents an experimental study of a newly designed Trombe wall, which is a part of the southern wall of a test room, in terms of energy performance and heating comfort during winter operation for the desert climate of the city of Yazd in Iran [9]. Z.T.…”

Section: Figure 1 the Use Of Air Vents In Trombe Walls In (A) Wintermentioning

confidence: 99%

Trombe Wall Application with Heat Storage Tank

Topçuoğlu

2019

Civ Eng J

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In this study, an investigation was made of the performance of a Trombe wall of classical structure used together with a heat store. Most Trombe walls are able to supply the heating needs of a space to which they are connected without the need for extra heating at times when the sun is shining. However, the heat obtained from the Trombe wall can be in excess of needs at such times, and measures must be taken to provide ventilation to the heated space. It is thought that the heat energy can be used more efficiently and productively by storing the excess heat outside the building and using it inside the building when there is no sunlight. To this purpose, a tank full of water and marble was built as a heat store as an alternative to the general Trombe wall design, and an attempt was made to minimise heat losses by burying it in the ground. It was concluded that in place of a traditional Trombe wall system using a massive wall heat store, a heat store could be constructed in a different position and with different materials. The Trombe wall system which was developed and tested met up to 30% of the energy needed for heating and cooling the building, and reduced the architectural and static disadvantages of Trombe wall systems. As a result of the study, it was seen that where a standard reinforced concrete wall could supply heat to the inside for 7 hours and 12 minutes, the figure for a wall made of paraffin wax was 8 hours and 55 minutes. In the same study, the heat storage thickness of a reinforced concrete wall was calculated as 20 cm, while that of a paraffin wax wall was calculated as 5 cm.

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“…Therefore, passive solar houses are developed because they focus mainly on envelope design and thermal performance, and the building can absorb, store, or release solar energy without any heating equipment in winter. Rabani [10] presented an innovative Trombe wall with three directions for solar energy to enable the absorber to receive solar radiation from three directions. However, the wall may decrease direct solar gain into living spaces although the wall had advantage in space heating.…”

Section: Introductionmentioning

confidence: 99%

Optimized Design and Feasibility of a Heating System with Energy Storage by Pebble Bed in a Solar Attic

2017

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For efficient application of solar energy, a pebble bed energy storage heating system in a solar attic is optimally designed and operated. To study the characteristics of the heating system, a numerical model for the system is presented and is validated with the experiment data in the literature. Based on the model, the influence of the envelopes of the solar house and the meteorological condition on the system performance is investigated. The results show that the envelopes, except those on the north face, with more glazed exterior surfaces can be beneficial to raise the temperature of the solar house. It is also found that outdoor temperature may have less impact on the energy storage in the system compared with solar radiation. Furthermore, through optimizing the system design and operation, solar energy can account for 56% of the energy requirement in the heating season in Xi'an (about 34 • N, 108 • E), which has an average altitude of 397.5 m and moderate solar irradiation. Also, the suitability of the system in northwest China is investigated, and the outcome demonstrates that the external comprehensive temperature should be more than 269 K if a 50% energy saving rate is expected.

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Experimental study of the heating performance of a Trombe wall with a new design

Cited by 99 publications

References 26 publications

Ventilated Trombe wall as a passive solar heating and cooling retrofitting approach; a low-tech design for off-grid settlements in semi-arid climates

Ventilated Trombe wall as a passive solar heating and cooling retrofitting approach; a low-tech design for off-grid settlements in semi-arid climates

Trombe Wall Application with Heat Storage Tank

Optimized Design and Feasibility of a Heating System with Energy Storage by Pebble Bed in a Solar Attic

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