横截面
材料科学
复合材料
机械
结构工程
机械工程
工程类
物理
作者
Qian Yu,Jie Ji,Hao Xie,Hengmin Jia,Ya-Yun Tang,Yan Mu
出处
期刊:Energy
[Elsevier]
日期:2024-05-22
卷期号:302: 131744-131744
被引量:1
标识
DOI:10.1016/j.energy.2024.131744
摘要
Trombe wall is an efficient passive solar heating system, while the utilization form of heated air needs to be expanded. Indoor microorganisms that can be transmitted through aerosol endanger the safety of human health. The fact that microorganisms can be thermally inactivated makes it possible to disinfect the air through Trombe wall. To expand and enhance the disinfection effect of the wall, extending the residence time of bioaerosols in the flow channel and raising the air temperature can be applied. Therefore, a transverse-finned-Trombe wall is proposed. Multiple physical field coupling is studied numerically. Migration, inactivation, and deposition of bioaerosols are described by Eulerian method. The results indicated as follows: As fin height increases, the thermal efficiency first rises and then drops; the single-pass inactivation ratio rises remarkably with its value reaching 90.96% and 66.98% for SARS-CoV-1 and SARS-CoV-2 even at low irradiance level (400 W/m2) at a fin height of 35 mm. As fin angle increases from -45° to +45°, the thermal efficiency drops first and then rises. Optimal disinfection performance is achieved at α = 0°. The contribution of deposition to removal of infectious bioaerosols plays a significant role when the thermal inactivation is not strong.
科研通智能强力驱动
Strongly Powered by AbleSci AI