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The Numerical Simulation and Analysis of Air-distribution in Big Air-Conditioning Room

Author: RenXiaoLi
Tutor: YuanDongSheng
School: Henan Polytechnic University
Course: Heating for the gas ventilation and air conditioning engineering
Keywords: Numerical Simulation Computational Fluid Dynamics Air-flow Distribution Valuate Index
CLC: TU831
Type: Master's thesis
Year: 2008
Downloads: 34
Quote: 1
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Abstract


With the improvement of the living standard and the development of the industrial production, the tall large-scale building is more and more, and the big building using air-conditioning is prevalent. For modern technical plants, air-conditioning is necessary and the best way to satisfy the technical request and comfort condition. Airflow attribution takes an important part in controlling the temperature, the humidity, the velocity, the clearness and the comfort sense. It must be thought about in the engineering design. The air-supplying parameters and the discharge height are important for the airflow attribution, so to study the impact of the air-supplying parameters and the discharge height on the airflow of the plant especially the workplace is important and necessary. This paper simulates and analyzes the temperature field and velocity field of meridian tire workshop by numerical simulation means. Firstly, the temperature and velocity in spot is measured, and the result is contrasted and analyzed with the simulated result. The reliability of the simulated result is verified by the factual measured datum. Secondly, the temperature and velocity field of meridian tire workshop is simulated, and it is testified the feasibility of the air-conditioning system in the most unfavorable conditions. Thirdly, simulates and forecasts the temperature and velocity field of the workshop close-by the floor at different air-supplying parameters(air-supplying temperature, air-supplying velocity) and different discharge positions. The air-conditioning effect in different conditions is estimated by airflow distribution index. When using the airflow distribution index, the proportion index is expanded into temperature proportion index and velocity proportion index in according to the fact. Finally, the conclusion is obtained and extended to the air-conditioning design of other big plants.

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CLC: > Industrial Technology > Building Science > Housing construction equipment > Air-conditioning, heating, ventilation,and its equipment > Air-conditioning
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