When the medical research building conducts relevant medical research, pollutants may be produced, and some chemical pollutants (acetone, cyanomethane, ethyl acetate, hexane) may cause harm to the human body when the concentration in the air is too high, so It is very important to set up an exhaust system to effectively discharge the chemical pollutants in the indoor air from the room. However, when the indoor exhaust port is too close to the air inlet, it may cause short circulation of exhaust gas or excessive exhaust volume. It is too small to effectively discharge pollutants; in addition, if the concentration of chemical pollutants is too high, it is easy to cause the accumulation of chemical pollutants. In order to avoid the above situation, this study aimed at the relative position of the exhaust port and the air intake, the concentration distribution of the surrounding environment caused by the discharge of chemical pollutants by the exhaust air volume and the air volume of the air intake, and numerically simulated with the computational fluid dynamics software ANSYS FLUENT analyze. In addition, for the monsoon in Taiwan, this study discusses the simulation analysis of the air intake and exhaust conditions of buildings when the monsoon wind direction is easterly. According to the numerical simulation results, it is known that when the medical research building conducts relevant medical research, various chemical pollutants are produced, and the exhaust system installed in the case of this study can discharge the chemical substances in the indoor air from the room. It will enter the room through the air inlet provided by the building shell.
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