Observational study on the cool breeze effect of a through wall type air conditioner

Sustainable Built Environment Conference 2019 Tokyo Built Environment in an era of climate change: how can cities and buildings adapt?

生态环境科学

Kato, Takaya^1 ; Ichinose, Masayuki^1 ; Tsukami, Shiro^2 ; Kubo, Hirotaka^2

Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji city Tokyo, Japan^1

Nikken Sekkei Ltd., 2-18-3 Iidabashi, Chiyoda-ku Tokyo, Japan^2

关键词: Actual conditions;    Natural ventilation;    Observational study;    Operation patterns;    Residential areas;    Thermal environment;    Ventilation performance;    Wind velocity distributions;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/294/1/012045/pdf
DOI  :  10.1088/1755-1315/294/1/012045

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

An air conditioning system has been developed that can select the operation pattern of a through-wall type unit (TWU) according to the air conditioning needs. There is a night-time cool breeze mode like natural ventilation using a fan in modes. The thermal environment and ventilation volume of office buildings can be greatly influenced by outdoor thermal conditions, and it is necessary to grasp the actual conditions. Therefore, in this research, the observational study of thermal environment and ventilation performance was conducted, and was compared and analysed with the simulation result. The cross-section wind velocity distribution was characterized in each area, but the wind velocity in the residential area was about 0.1 to 0.2 m/s, and no draft was seen immediately below the bypass duct outlet. It was almost in agreement with the simulation results. The ventilation performance survey revealed that the windward side was slightly difficult to ventilate. However, there was no big difference in the age of air depending on the location. Moreover, there was no significant difference in the total ventilation volume even if the outdoor thermal conditions were different. It was confirmed that the TWU had expected performance and stable ventilation performance was secured.