CAJ | 학술논문

针对新型通风方式-层状通风,采用RNG k-ε模型对4种不同回风口布置方式下的通风房间进行数值模拟,对4种工况室内污染物衰减结果及污染物浓度场进行分析比较,并通过示踪气体衰减方法计算室内通风效率.结果表明回风口位于房间顶部的通风效果最优.
침대신형통풍방식-층상통풍,채용RNG k-ε모형대4충불동회풍구포치방식하적통풍방간진행수치모의,대4충공황실내오염물쇠감결과급오염물농도장진행분석비교,병통과시종기체쇠감방법계산실내통풍효솔.결과표명회풍구위우방간정부적통풍효과최우.
On account of a new type of ventilation, stratum ventilation, with the RNG k-εturbulence model used to predict indoor airflow, four stratum ventilation patterns in air-conditioned room are discussed. The measured CO2 concentration decay results and concentration field are studied numerically for four different cases;a concentration decay of CO2 is used to calculate the ventilation efficiency. Compared with the numerical result of four ventilation patterns, the ventilation whose outlets are located at the top of the room is better due to its better ventilation efficiency.