Numerical Simulation of Multi-Nozzle Droplet Evaporation Characteristics for Desulfurization Wastewater

doi:10.3390/en15145180

	Numerical Simulation of Multi-Nozzle Droplet Evaporation Characteristics for Desulfurization Wastewater
	Guo, Xinrui 1; Wu, Jiangbo1 ; Du, Xiaoze 1; Zhang, Yaocong 1; Feng, Shuqin 2; Liu, Shujun1
	2022-07
发表期刊	ENERGIES
卷号	15 期号:14
摘要	Spraying flue gas desulfurization wastewater into flue ducts is an emerging technology that is receiving extensive attention in thermal power plants. In order to study the evaporative performance of wastewater-atomizing droplets under variable working conditions, a combined Euler-Lagrange model was developed to demonstrate the thermal behavior of FGD wastewater spray evaporation in flue gas. The effects of several control factors under various operating conditions were numerically determined and validated against experimental data. Due to the complicated parameters and various other conditions, a least-square support vector machine (LSSVM) model relying on numerical results was used to anticipate the evaporation rate of the droplets. We prove that the LSSVM model has high prediction accuracy for the evaporation rate at different cross-sections of flue under a different operating situation. The conclusion is that for the sake of improving the quality of evaporation, the spacing between two adjacent nozzles should be increased while increasing the flow rate. However, using a higher flue gas temperature, higher initial temperature and smaller diameter of droplets can shorten the time and distance of complete evaporation. In summary, this research analysis can be used effectively to determine the design of the FGD wastewater flue gas evaporative process in thermal power plants.
关键词	flue gas desulfurization wastewater zero discharge of wastewater atomized droplet spray evaporation least-square support vector machine
DOI	10.3390/en15145180
收录类别	SCIE ; EI
语种	英语
WOS研究方向	Energy & Fuels
WOS类目	Energy & Fuels
WOS记录号	WOS:000832425600001
出版者	MDPI
EI入藏号	20223512630696
EI主题词	Flue gases
EI分类号	451.1 Air Pollution Sources ; 522 Gas Fuels ; 615.4 Thermoelectric Energy ; 631.1 Fluid Flow, General ; 723 Computer Software, Data Handling and Applications ; 802.3 Chemical Operations
来源库	WOS
引用统计	被引频次[WOS]：0 [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/159451
专题	能源与动力工程学院
通讯作者	Wu, Jiangbo
作者单位	1.Lanzhou Univ Technol, Sch Energy & Power Engn, Lanzhou 730050, Peoples R China; 2.North China Elect Power Univ, Key Lab Condit Monitoring & Control Power Plant E, Minist Educ, Beijing 102206, Peoples R China
第一作者单位	能源与动力工程学院
通讯作者单位	能源与动力工程学院
第一作者的第一单位	能源与动力工程学院
推荐引用方式 GB/T 7714	Guo, Xinrui,Wu, Jiangbo,Du, Xiaoze,et al. Numerical Simulation of Multi-Nozzle Droplet Evaporation Characteristics for Desulfurization Wastewater[J]. ENERGIES,2022,15(14).
APA	Guo, Xinrui,Wu, Jiangbo,Du, Xiaoze,Zhang, Yaocong,Feng, Shuqin,&Liu, Shujun.(2022).Numerical Simulation of Multi-Nozzle Droplet Evaporation Characteristics for Desulfurization Wastewater.ENERGIES,15(14).
MLA	Guo, Xinrui,et al."Numerical Simulation of Multi-Nozzle Droplet Evaporation Characteristics for Desulfurization Wastewater".ENERGIES 15.14(2022).