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LAPSE:2023.27923

Evaluation of the Summer Overheating Phenomenon in Reinforced Concrete and Cross Laminated Timber Residential Buildings in the Cold and Severe Cold Regions of China

Haibo Guo, Lu Huang, Wenjie Song, Xinyue Wang, Hongnan Wang, Xinning Zhao

April 11, 2023

Abstract
As the climate changed in recent years, an increase in summer indoor temperatures in severe cold and cold regions of China has started to affect thermal comfort. However, the local design standard for energy efficiency does not recognize this phenomenon. This paper reports the potential overheating phenomenon in residential buildings and examines the rationale for the current thermal designs adopted in severe cold and cold regions of China. In this study, the two most commonly used building materials, reinforced concrete (RC) and cross laminated timber (CLT), are used separately in the design of an 18-story residential building envelope located in six different cities in the severe cold and cold regions. The energy consumption and indoor operative temperatures during the operation of these buildings are simulated using Integrated Environmental Solutions Virtual Environment (IES VE). The results demonstrate that both the RC and the CLT buildings experience varying degrees of overheating in any climate subregion. The CLT buildings have longer overheating hours compared to the RC buildings, especially in the cold regions. The results also indicate that for apartments on higher stories, the cooling energy consumption and indoor temperature also increase gradually. The research results suggest that the local design standard for energy efficiency needs to be adjusted by adding thermal design methods for summer to reduce the periods of overheating.

Record ID

LAPSE:2023.27923

Keywords

cross laminated timber (CLT), energy consumption, operative temperature, overheating phenomenon, residential buildings

Subject

Energy Systems

Suggested Citation

Guo H, Huang L, Song W, Wang X, Wang H, Zhao X. Evaluation of the Summer Overheating Phenomenon in Reinforced Concrete and Cross Laminated Timber Residential Buildings in the Cold and Severe Cold Regions of China. (2023). LAPSE:2023.27923

Author Affiliations

Guo H: School of Architecture, Harbin Institute of Technology, Harbin 150001, China; Key Laboratory of Cold Region Urban and Rural Human Settlement Environment Science and Technology, Ministry of Industry and Information Technology, Harbin 150001, China [ORCID]
Huang L: School of Architecture, Harbin Institute of Technology, Harbin 150001, China; Key Laboratory of Cold Region Urban and Rural Human Settlement Environment Science and Technology, Ministry of Industry and Information Technology, Harbin 150001, China
Song W: School of Architecture, Harbin Institute of Technology, Harbin 150001, China; Key Laboratory of Cold Region Urban and Rural Human Settlement Environment Science and Technology, Ministry of Industry and Information Technology, Harbin 150001, China
Wang X: School of Architecture, Harbin Institute of Technology, Harbin 150001, China; Key Laboratory of Cold Region Urban and Rural Human Settlement Environment Science and Technology, Ministry of Industry and Information Technology, Harbin 150001, China
Wang H: School of Architecture, Harbin Institute of Technology, Harbin 150001, China; Key Laboratory of Cold Region Urban and Rural Human Settlement Environment Science and Technology, Ministry of Industry and Information Technology, Harbin 150001, China
Zhao X: School of Architecture, Harbin Institute of Technology, Harbin 150001, China; Key Laboratory of Cold Region Urban and Rural Human Settlement Environment Science and Technology, Ministry of Industry and Information Technology, Harbin 150001, China

Journal Name

Energies

Volume

Issue

Article Number

E6305

Year

2020

Publication Date

2020-11-29

DOI:

https://doi.org/10.3390/en13236305