Experimental study on dynamic effect of external insulation on indoor thermal environment and energy consumption

Guo, Luyao; Liao, Yuxuan; Zhu, Cheng; Zheng, Hanjie; Long, Enshen

doi:10.1016/j.enbuild.2022.112299

Cited by 9 publications

(5 citation statements)

References 39 publications

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“…The figure clearly shows that, after adding insulation materials to the external walls, the energy consumption of the building was significantly reduced. The reason is the same as the previous research conclusion [18][19][20], that is, the thermal resistance of the thermal insulation material is high, thus improving the thermal insulation effect of the external wall. In addition, Case 7 had the lowest cooling energy consumption, which was 4.19% lower than that of Case 3 (without insulation).…”

Section: Comparative Analysis Of the Refrigeration Energy Consumption...supporting

confidence: 72%

“…The above results show that the wall with insulation material had the function of reducing energy consumption and improving heat insulation. It also shows that the greater the thermal resistance of insulation materials, the better the thermal insulation effect, which also proves the correctness of the conclusions of Gou [18] and Hou [19] et al In addition, Case 5 had the highest cooling energy consumption, which was 2.27% lower than that of Case 3 (without insulation materials). This indicates that Case 5's insulation effect and energy savings are poor.…”

Section: Comparison Of the Refrigeration Energy Consumption Of Wall R...supporting

confidence: 71%

“…After three kinds of sandwich materials of the same thickness are added to the external walls of the same material and thickness, the building refrigeration energy consumptions from highest to lowest were Case 5 (418 kW•h), Case 6 (413.1 kW•h), and Case 7 (409.8 kW•h). The above results show that the wall with insulation material had the function of reducing energy consumption and improving heat insulation.It also shows that the greater the thermal resistance of insulation materials, the better the thermal insulation effect, which also proves the correctness of the conclusions of Gou[18] and Hou[19] et al In addition, Case 5 had the highest cooling energy consumption, which was 2.27% lower than that of Case 3 (without insulation materials). This indicates that Case 5's insulation effect and energy savings are poor.…”

supporting

confidence: 70%

“…Figure 10 compares the refrigeration energy consumption for Case 5 (mineral wool board), Case 6 (EPS), and Case 7 (XPS). After three kinds of sandwich materials of the same thickness are added to the external walls of the same material and thickness, the building refrigeration energy consumptions from highest to lowest were Case 5 (418 It also shows that the greater the thermal resistance of insulation materials, the better the thermal insulation effect, which also proves the correctness of the conclusions of Gou [18] and Hou [19] et al In addition, Case 5 had the highest cooling energy consumption, which was 2.27% lower than that of Case 3 (without insulation materials). This indicates that Case 5's insulation effect and energy savings are poor.…”

Section: Comparison Of the Refrigeration Energy Consumption Of Wall R...mentioning

confidence: 68%

“…L Gou et al [19]. built two identical model buildings, one of which used 38 mm expanded polystyrene (EPS) panels as exterior insulation.…”

Section: Introductionmentioning

confidence: 99%

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Optimization and Renovation Design of Indoor Thermal Environment in Traditional Houses in Northeast Sichuan (China)—A Case Study of a Three-Section Courtyard House

Hou,

Hu,

Jiang

et al. 2024

Sustainability

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The three-section courtyard is the most representative traditional residence in the traditional villages in northeast Sichuan. As a unique cultural landscape, it carries the local historical style and cultural connotation. However, the high temperature weather in summer leads to a poor thermal environment in traditional residential buildings, which cannot meet the needs of building users for human thermal comfort, and the wall is the most critical factor affecting the indoor thermal environment. Therefore, to optimise the indoor thermal environment of traditional residential buildings, this study designed four groups of wall renovation schemes according to the original traditional residential buildings and modern technology, and simulated and verified the feasibility of the building renovation schemes by using Design Builder. Then, the four groups of wall renovation schemes were compared and tested based on the Design Builder. Comparative results of the thermal-performance evaluation index revealed that compared with Case 1 and Case 2, the building refrigeration energy consumption of Case 3 in the hottest week was the least, only 427.7 kW·h, which indicates that the external wall renovation scheme using aerated concrete blocks had the best thermal insulation and energy-saving effects. The cooling energy consumption of Case 4 in the hottest week was 422 kW·h, which was 4.3 kW·h less than that of Case 3, indicating that the wall renovation scheme with an air inter-layer had better thermal insulation and energy-saving effects. The refrigeration energy consumption of Case 7 in the hottest week was only 409.8 kW·h, which was 4.19% lower than Case 3 (without insulation material), indicating that the scheme of selecting central insulation and extruded polystyrene board (XPS) had better thermal insulation and energy-saving effects in practical projects. In summary, the above transformation scheme not only improves the indoor thermal environment of traditional residential buildings, but also provides guidance for architectural designers on green, energy-saving and sustainable design.

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Section: Comparative Analysis Of the Refrigeration Energy Consumption...supporting

confidence: 72%

Section: Comparison Of the Refrigeration Energy Consumption Of Wall R...supporting

confidence: 71%

supporting

confidence: 70%

Section: Comparison Of the Refrigeration Energy Consumption Of Wall R...mentioning

confidence: 68%

“…L Gou et al [19]. built two identical model buildings, one of which used 38 mm expanded polystyrene (EPS) panels as exterior insulation.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Optimization and Renovation Design of Indoor Thermal Environment in Traditional Houses in Northeast Sichuan (China)—A Case Study of a Three-Section Courtyard House

Hou,

Hu,

Jiang

et al. 2024

Sustainability

View full text Add to dashboard Cite

show abstract

Experimental study on improvement of indoor thermal environment of buildings in high altitude areas at night in winter by different sheltering methods

Jia,

Jiang,

Zhang

et al. 2024

Energy and Buildings

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Prediction models for building thermal mass of intermittently heated rooms for balancing energy consumption and indoor thermal comfort

Yu,

Lu,

et al. 2024

Energy and Buildings

View full text Add to dashboard Cite

Experimental study on dynamic effect of external insulation on indoor thermal environment and energy consumption

Cited by 9 publications

References 39 publications

Optimization and Renovation Design of Indoor Thermal Environment in Traditional Houses in Northeast Sichuan (China)—A Case Study of a Three-Section Courtyard House

Optimization and Renovation Design of Indoor Thermal Environment in Traditional Houses in Northeast Sichuan (China)—A Case Study of a Three-Section Courtyard House

Experimental study on improvement of indoor thermal environment of buildings in high altitude areas at night in winter by different sheltering methods

Prediction models for building thermal mass of intermittently heated rooms for balancing energy consumption and indoor thermal comfort

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