Exploring the distribution of energy consumption in a northeast Chinese city based on local climate zone scheme: Shenyang city as a case study

Guang Yang,Jing Zhang,Yanpeng Fu,Minghui Yan

doi:10.1177/0144598720950465

Guang Yang, Jing Zhang + Show 2 more

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https://doi.org/10.1177/0144598720950465

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Abstract

The local climate zone (LCZ) scheme is now used to investigate urban heat islands, which provides additional reference for energy consumption simulation. Based on the LCZ scheme, a LCZ mapping of Shenyang, a city in northeast China, was first constructed using the World Urban Database and Access Portal Tools (WUDAPT) Level 0 method. Subsequently, DeST-h was considered to simulate the energy consumption of urban buildings with concentration areas. The results show that with Shenyang being a severely cold area, the annual energy consumption of heating is approximately twice that of refrigeration for an individual building. The total energy consumption of open-distributed single buildings is higher than that of compact-distributed single buildings. Consequently, the unit cumulative energy consumption in compact-distributed buildings is higher than that in openly distributed building areas. The compact high-rise buildings (LCZ 1) have the highest energy consumption, with a unit annual energy consumption of 123,771.150 MW·h, which is equivalent to 41,257 tons of standard coal combustion power generation. Considering the energy consumption of residential buildings, the central high-rise buildings group and the compact centralized middle-rise buildings in the downtown area are high energy consumption areas. For future urban planning, design strategies such as energy-saving transformation and energy planning should be considered. The research results can provide a scientific basis and theoretical support for reducing building energy consumption, alleviating the urban heat island effect, and the development of modern urban planning.

Highlights

With the emergence of multidisciplinary approaches involving meteorology, urban and rural planning, geographic sciences, etc., the use of technology around data information, algorithmic methods, and professional tools has increased
Urban climatology has been experiencing slow growth owing to the neglect of the relationship between urban planning and the corresponding urban climate impact
Stewart and Oke (2012) proposed a local climate zone (LCZ) scheme that standardized the description of the urban heat island effect, realized the visualization of city-scale energy consumption simulation, and promoted the research of urban energy planning (Deng et al, 2019; Jiang, 2005)

Summary

Introduction

With the emergence of multidisciplinary approaches involving meteorology, urban and rural planning, geographic sciences, etc., the use of technology around data information, algorithmic methods, and professional tools has increased. Stewart and Oke (2012) proposed a local climate zone (LCZ) scheme that standardized the description of the urban heat island effect, realized the visualization of city-scale energy consumption simulation, and promoted the research of urban energy planning (Deng et al, 2019; Jiang, 2005). Most scholars have applied the LCZ scheme to the study of urban heat island intensity and urban development planning, and few have combined the LCZ scheme with the energy consumption of urban areas. We combine the LCZ scheme with the energy consumption of urban areas and construct the urban heat island intensity distribution map. 2. Based on the constructed LCZ mapping of Shenyang, DeST-h was used to simulate the energy consumption of civil buildings (LCZ1-LCZ6) in concentrated residential areas.

Research methods and energy consumption simulation

Results and analysis

Discussion

Conclusion