Simulation of aerosolized oil droplets capture in a range hood exhaust using coupled CFD-population balance method

International Conference on Energy Engineering and Environmental Protection 2017

能源学;生态环境科学

Liu, Shuyuan^1 ; Zhang, Yong^2 ; Feng, Yu^1 ; Shi, Changbin^2 ; Cao, Yong^1 ; Yuan, Wei^2

Harbin Institute of Technology, Shenzhen Graduate School, Guangdong

518055, China^1

Shenzhen Xinbaoying Science and Technology Co., Ltd, China^2

关键词: Homogeneous nucleation;    Oil droplets;    Population balances;    Sectional methods;    Total suction;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/121/5/052031/pdf
DOI  :  10.1088/1755-1315/121/5/052031

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

A coupled population balance sectional method (PBSM) coupled with computational fluid dynamics (CFD) is presented to simulate the capture of aerosolized oil droplets (AODs) in a range hood exhaust. The homogeneous nucleation and coagulation processes are modeled and simulated with this CFD-PBSM method. With the design angle, α of the range hood exhaust varying from 60° to 30°, the AODs capture increases meanwhile the pressure drop between the inlet and the outlet of the range hood also increases from 8.38Pa to 175.75Pa. The increasing inlet flow velocities also result in less AODs capture although the total suction increases due to higher flow rates to the range hood. Therefore, the CFD-PBSM method provides an insight into the formation and capture of AODs as well as their impact on the operation and design of the range hood exhaust.