Research on Energy-Saving Optimization of Civil Hotel Envelope in Hot Summer and Cold Winter Zone Based on DeST

Minghui Sun

doi:10.54691/wmxx6c42

Authors

Minghui Sun School of Civil Engineering, Henan Polytechnic University, Jiaozuo 454000, Henan, China

DOI:

https://doi.org/10.54691/wmxx6c42

Keywords:

Civil hotel; DeST; building envelope; orthogonal test.

Abstract

Aiming at the energy consumption issues of civil hotels, this study takes a hotel in Shanghai as an example and uses DeST simulation and orthogonal tests to analyze the effects of exterior wall insulation thickness (60-100 mm) and window materials (common insulating glass, Low-E coated low-emissivity insulating glass, Low-E coated vacuum glass) on building energy use. Results show that window materials have a more significant impact (range: 36,088 kW·h). The optimal scheme (100 mm insulation + Low-E coated low-emissivity insulating glass) achieves the lowest total load of 289,114 kW·h, saving 23.9% energy compared with the baseline. Prioritizing window upgrades to balance efficiency and cost is recommended for low-carbon building development.

Downloads

Download data is not yet available.

References

[1] Xu, W., Yang, X. Y., & Zhang, S. C. (2018). Key issues and solutions for the development of near-zero energy buildings in China. Building Science, 34(12), 165–173.

[2] Xu, W., Ni, J. B., Sun, D. Y., & et al. (2021). Decomposition and path analysis of China's building carbon peak and carbon neutrality targets. Building Science, 37(10), 1–8, 23.

[3] Jiang, Y., & Hu, S. (2021). The path to achieving carbon neutrality in China's building sector. Heating Ventilating & Air Conditioning, 51(5), 1–13.

[4] Hu, S., Yan, D., & Jiang, Y. (2021). Index definition and survey analysis of the spatial-temporal occupancy characteristics of people in buildings. Building Science, 37(8), 160–169.

[5] Ming, X. (2019). Design and research on energy-saving renovation of rural houses in cold regions of northern China based on DeST-h. Energy Conservation, 38(12), 10–12.

[6] Yan, D., Chen, Y. M., Pan, Y. Q., & et al. (2018). Research status and development of building energy consumption simulation in China. Building Science, 34(10), 130–138.

[7] Wang, Y. X. (2022). Research on energy consumption simulation and energy-saving renovation of rural residential buildings in Chengdu based on DeST-H. Architecture and Culture, (5), 49–51.

[8] Zhang, S. C., Lyu, Y. J., & Xu, W. (2020). Study on the best-case control indicators and technical paths of 64 ultra-low energy buildings. Building Science, 36(6), 7–13, 135.

[9] Ministry of Housing and Urban-Rural Development of the People's Republic of China. (2015). Design standard for energy efficiency of public buildings: GB 50189-2015. China Architecture & Building Press.

[10] Wei, Y. (2023). Analysis of passive energy-saving optimization strategies for residential buildings in hot summer and cold winter zones. Anhui Architecture, 30(8), 14–16.

[11] Zhang, Y. L. (2023). Application of exterior wall thermal insulation and energy-saving technology in building construction. Interior Architecture of China, (18), 60–62.

[12] Liu, X., Lin, X. T., Feng, G. H., & et al. (2023). Optimization of energy-saving renovation of existing building envelopes in severe cold regions. Building Technology, 54(1), 78–82.