「The impact of natural ventilation on energy consumption in detached houses based on different climate zones in Japan」の版間の差分

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学生名：'''REN YUFAN'''  
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'''学生名'''：'''REN YUFAN'''
  
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研究テーマ：The impact of natural ventilation on energy consumption in detached houses based on different climate zones in Japan
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'''研究テーマ'''：The impact of natural ventilation on energy consumption in detached houses based on different climate zones in Japan
  
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入学年月:2021.10
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'''入学年月''':2020.10
  
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修了年月:2023.09
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'''修了年月''':2023.09
  
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取得学位：修士（工学）
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'''取得学位'''：修士（工学）
  
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論文概要:In this paper,The impact of natural ventilation on energy consumption in detached houses based on different climate zones in Japan investigates the impact of natural ventilation and building energy consumption in detached residential buildings across diverse climate zones in Japan.
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論文概要:This paper examines the impact of natural ventilation on energy consumption in detached houses across Japan’s diverse climate zones. By analyzing regional climate characteristics, the study highlights significant variations in the annual effective ratio of natural ventilation, influenced by climate conditions. The efficiency of natural ventilation increases from north to south, with cold northern regions like District 1 showing limited potential, while southern areas, especially Naha City in District 8, achieve the highest annual efficiency of 44.5%.
  
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First, this paper analyzes the regional climate characteristics of different climate zones in Japan and obtains the potential of natural ventilation in different climate zones in Japan and the main factors of natural ventilation effects in different regions. The results show that there are significant differences in the annual effective ratio of natural ventilation in representative cities in different climate zones in Japan, and this difference is affected by climate conditions and gradually increases from north to south. Cities in District 1 represented by OMU have limited availability of natural ventilation due to the perennial cold climate. Secondly, the annual effective rate of natural ventilation in the representative cities of Districts 2, 3, 4, and 5 is relatively high, about 20%. The annual efficiency of natural ventilation in the representative cities of districts 6 and 7 is slightly higher, about 30%, and has a relatively large potential for natural ventilation. Finally, Naha City, which represents the 8th ward, had the highest natural ventilation annual efficiency at 44.5%.
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Using BEST software for simulation, the study evaluates the effects of natural ventilation on indoor temperature and cooling energy consumption. It reveals that natural ventilation can save 10% to 40% of energy depending on the climate zone. In northern zones, it reduces cooling energy consumption by nearly half, while in southern regions, the energy-saving potential is about five times greater than in colder areas.
  
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Based on the analysis, this paper uses BEST software to simulate indoor temperature and refrigeration energy consumption, studying the impact of natural ventilation on indoor conditions and proposing schemes for different climate zones. Through the study of residential buildings in different climate zones in Japan, it is found that the energy-saving potential is generally between 10% and 40%. As the climate gradually changes from north to south, the energy savings achieved through natural ventilation increase gradually. In terms of energy-saving efficiency, natural ventilation in the first climate zone can reduce cooling energy consumption by nearly half, and the energy-saving effect is remarkable. On the other hand, from the perspective of energy saving, the eighth climate zone has the greatest potential, and its energy saving is about five times that of the first climate zone.
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These findings provide valuable insights for designing detached houses optimized for natural ventilation across different climate zones in Japan, promoting energy efficiency and sustainability.
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The above research results can provide a reference for the planning and design of Japanese detached houses for the use of natural ventilation and the application of natural ventilation in different climate zones.
 

2024年12月5日 (木) 16:41時点における版

学生名：REN YUFAN

研究テーマ：The impact of natural ventilation on energy consumption in detached houses based on different climate zones in Japan

入学年月:2020.10

修了年月:2023.09

取得学位：修士（工学）

論文概要:This paper examines the impact of natural ventilation on energy consumption in detached houses across Japan’s diverse climate zones. By analyzing regional climate characteristics, the study highlights significant variations in the annual effective ratio of natural ventilation, influenced by climate conditions. The efficiency of natural ventilation increases from north to south, with cold northern regions like District 1 showing limited potential, while southern areas, especially Naha City in District 8, achieve the highest annual efficiency of 44.5%.

Using BEST software for simulation, the study evaluates the effects of natural ventilation on indoor temperature and cooling energy consumption. It reveals that natural ventilation can save 10% to 40% of energy depending on the climate zone. In northern zones, it reduces cooling energy consumption by nearly half, while in southern regions, the energy-saving potential is about five times greater than in colder areas.

These findings provide valuable insights for designing detached houses optimized for natural ventilation across different climate zones in Japan, promoting energy efficiency and sustainability.

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