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Research Article

Energy-saving optimization based on residential building orientation and shape with multifactor coupling in the Tibetan areas of western Sichuan, China

ORCID Icon, &
Pages 1476-1491 | Received 03 Apr 2022, Accepted 27 May 2022, Published online: 12 Jun 2022

Figures & data

Figure 1. Research flow chart.

Figure 1. Research flow chart.

Figure 2. Location of the study area.

Figure 2. Location of the study area.

Figure 3. Photos of the test subjects.

Figure 3. Photos of the test subjects.

Table 1. Basic technical parameters of the measurement equipment.

Figure 4. Simulated and measured temperatures of north-facing rooms.

Figure 4. Simulated and measured temperatures of north-facing rooms.

Figure 5. Simulated and measured temperatures of south-facing rooms.

Figure 5. Simulated and measured temperatures of south-facing rooms.

Table 2. Basic parameters of typical low-energy dwellings in the Tibetan areas of western Sichuan.

Figure 6. Building model.

Figure 6. Building model.

Table 3. Thermal parameters of doors and windows.

Table 4. ANOVA table for the TOMTD regression model.

Figure 7. Relationship between the mean indoor temperature and solar radiation and orientation. SR represents the solar radiation settings, and the radiation intensity gradually increased from SR-1 to SR-19.

Figure 7. Relationship between the mean indoor temperature and solar radiation and orientation. SR represents the solar radiation settings, and the radiation intensity gradually increased from SR-1 to SR-19.

Table 5. Linear relationships between the average indoor temperature and the southern wall area-to-ground area ratio, latitude, and average outdoor temperature.

Figure 8. The correlations between the southern wall area-to-ground area ratio, the building shape coefficient and the average indoor temperature.

Figure 8. The correlations between the southern wall area-to-ground area ratio, the building shape coefficient and the average indoor temperature.

Table 6. ANOVA table for the MITD regression model.

Figure 9. Linear relationship between the building width and average indoor temperature. The solar radiation intensity gradually increases from SR-5 to SR-19.

Figure 9. Linear relationship between the building width and average indoor temperature. The solar radiation intensity gradually increases from SR-5 to SR-19.

Table 7. Optimal orientations and suitable orientations of major cities in the Tibetan areas of western Sichuan.

Table 8. Optimal residential building shape designs in major cities in the Tibetan areas of western Sichuan.