Simulation and Analysis of the Energy Consumption for Public Buildings in Different Climate Regions of China

Zhao, Bingwen; Qi, Lijuan; Yang, Ting

doi:10.1016/j.proeng.2017.10.110

Cited by 7 publications

(4 citation statements)

References 9 publications

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“…SHGC led to a 6-18% increase in heating load and a 5-12% decrease in cooling load, thereby reducing energy by 16%. Moreover, Lee et al [37], Raji et al [42], and Zhao et al [43], who experimented on the impact of glazing performance according to climate features, discovered that the U-value must be considered in polar regions where heating is required, whereas SHGC must be regarded in hot climates where cooling is needed.…”

Section: Sinter and Discussionmentioning

confidence: 99%

Optimizing Window Glass Design for Energy Efficiency in South Korean Office Buildings: A Hierarchical Analysis Using Energy Simulation

Lee,

Kim,

Ryu

et al. 2023

Buildings

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The world is emphasizing the need for building design that considers energy performance to deal with climate problems. South Korea has constantly been tightening the design standards for saving building energy but with a focus on thermal performance and equipment systems. Accordingly, this study conducted an energy simulation experiment on office buildings with different window-to-wall ratios (WWRs) to propose a smart glazing plan to improve energy performance. An energy simulation experiment was performed on office buildings with varying WWRs to hierarchically analyze the influence of building window performance elements, including the heat transmission coefficient (U-value), visible light transmittance (VLT), and solar heat gain coefficient (SHGC), on building energy performance. The analysis showed that SHGC had the most significant impact on the heating and cooling load, by 22.13%, with the influences of the variables being 12.4% for the U-value, 4.78% for VLT, and 82.83% for SHGC. The results showed that the solar heat gain coefficient (SHGC) had the greatest impact on energy performance among window performance elements, and the effect increased significantly in certain WWRs. Moreover, to improve the energy performance of buildings with higher WWRs, it is essential to reflect the optimum composition of the U-value and SHGC on the window plan. This study’s findings propose measures to supplement existing window plans focusing on thermal performance. Furthermore, these results hold academic value in providing concrete grounds for that.

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Section: Sinter and Discussionmentioning

confidence: 99%

Optimizing Window Glass Design for Energy Efficiency in South Korean Office Buildings: A Hierarchical Analysis Using Energy Simulation

Lee,

Kim,

Ryu

et al. 2023

Buildings

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“…Huang et al [26] used ENVI-met and Energy Plus to study the hot and humid climate zone in Taipei and found that the microclimate had a significant impact on building energy consumption. Zhao et al [27] analyzed the effects of major thermal properties of envelope structures on energy consumption in different climate zones in China. Wu et al [28] investigated the intelligent multi-objective optimization of near-zero-energy buildings in four climate zones in China and found that the main influencing factors and corresponding measures varied from region to region.…”

Section: Introductionmentioning

confidence: 99%

Research on Technology System Adaptability of Nearly Zero-Energy Office Buildings in the Hot Summer and Cold Winter Zone of China

Jia,

Zhang,

Yao

et al. 2023

Sustainability

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In the current context of huge global energy consumption and harsh climatic conditions, the energy efficiency and sustainability of buildings have received much attention. The nearly zero-energy building (nZEB) is a feasible solution for solving the energy crisis in the building sector in recent years, and it is important to study the adaptability of its technology system. However, existing studies have not addressed well the issue of the impact of complex and diverse climates on the technology systems of nZEBs. Secondly, in contrast to residential buildings, nearly zero-energy technology systems for office buildings need to be further developed. This study takes the hot summer and cold winter (HSCW) zone of China as an example and uses numerical simulations and orthogonal experiments to investigate the adaptability of nearly zero-energy office building technology systems under complex and diverse climate conditions. The results show the following: (1) Passive technologies are greatly affected by the complexity and diversity of climates. Optimal envelope thermal parameters tailored to specific zones are identified. Specifically, the optimal level of KWALL in the CT and HSCWC zones is 0.2 W/(m2·K), and the optimal level of KWALL in the HSWWT zone is 0.3 W/(m2·K); the optimal level of KROOF in the CT zone is 0.15 W/(m2·K), and the optimal level of KROOF in the HSCWC and HSWWT zones is 0.25 W/(m2·K); (2) Active technologies do not mainly receive the influence of the complexity and diversity of climates, and ED, HR, and TS measures should be adopted for office buildings; (3) The rational utilization of renewable energy is influenced by local resource conditions. This study evaluates the adaptability of GSHP, ASHP, and BIPV technologies. To better meet the requirements of nearly zero-energy office buildings, it is recommended to adopt GSHP for the CT zone and ASHP for the HCWWT zone. This study will be helpful for the development of nearly zero-energy office building technology systems in other complex and diverse climatic zones.

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“…Gianluca Pappaccog Li et al analyzed the sensitivity of urban climate conditions and building energy consumption to the parameters of urban materials and building environment, and obtained the biggest influencing factors of indoor predetermined temperature [15]. Bingwen Zhao et al took a public building in China as the research object and established a benchmark model by using EnergyPlus to analyze the influence of main thermal performance of building envelope on energy consumption in different climate regions, and obtained the order of factors affecting building energy consumption in different regions [16]. Junsheng Hu et al took Beijing as an example to study the influence of different thermal physical envelope structures on building energy consumption, and obtained the order of influencing factors of public building energy consumption [17].…”

Section: Introductionmentioning

confidence: 99%

Study on the Influencing Factors of Energy Consumption of Nearly Zero Energy Residential Buildings in Cold and Arid Regions of Northwest China

Yang

Yuan

Yang³

et al. 2022

Sustainability

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There are many factors influencing the energy consumption of buildings in complex working conditions. In order to study the factors influencing the energy consumption of residential buildings with nearly zero energy in cold and arid regions of northwest China, factors such as the roof heat transfer coefficient (KR), exterior wall heat transfer coefficient (KE), ground heat transfer coefficient (KG), exterior window heat transfer coefficient (KEW), north window wall ratio (WWRN), south window wall ratio (WWRS), east west window wall ratio (WWRWE), building orientation (BO), and ventilation times (VT) are taken as the influencing factors in this paper. Using the orthogonal test, 135 building energy consumption calculation models were built in DeST, and the influence of 9 factors on building energy consumption in 5 types of regions (severe cold region A (1A), severe cold region B (1B), severe cold region C (1C), cold region A (2A), and cold region B (2B)) were analyzed. The conclusions are as follows: in the process of realizing nearly zero energy of residential buildings in the cold and arid regions of northwest China, the KR, KE, KG, KEW, WWRN, WWEWE should be reduced as much as possible in the five regions. The 1A,1B,1C regions should increase WWEWE and VT, with BO of about 15° east of due north and VT of about 5, 8, and 10 times per hour, respectively. The WWES, BO and VT for the 2A region should be set at round 0.45, north-south, and about 10 times per hour, respectively. For the 2B region, WWES should be set at around 0.45, BO around 15° east of due north, and VT as low as possible within the scope of the ‘technical standard for nearly zero energy buildings’.

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Simulation and Analysis of the Energy Consumption for Public Buildings in Different Climate Regions of China

Cited by 7 publications

References 9 publications

Optimizing Window Glass Design for Energy Efficiency in South Korean Office Buildings: A Hierarchical Analysis Using Energy Simulation

Optimizing Window Glass Design for Energy Efficiency in South Korean Office Buildings: A Hierarchical Analysis Using Energy Simulation

Research on Technology System Adaptability of Nearly Zero-Energy Office Buildings in the Hot Summer and Cold Winter Zone of China

Study on the Influencing Factors of Energy Consumption of Nearly Zero Energy Residential Buildings in Cold and Arid Regions of Northwest China

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