Development of economical-running strategy for multi-lamp UV disinfection reactors in secondary water supply systems with computational fluid dynamics simulations

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 中国科学院饮用水科学与技术重点实验室

	Development of economical-running strategy for multi-lamp UV disinfection reactors in secondary water supply systems with computational fluid dynamics simulations
	Qiang, Zhimin; Li, Mengkai; Li, Wentao; Wen, Dong
刊名	CHEMICAL ENGINEERING JOURNAL
	2018-07-01
卷号	343 页码:317-323
关键词	UV disinfection Secondary water supply Economical running Flow rate Lamp mode Lamp output power
ISSN号	1385-8947
文献子类	Review
英文摘要	The employment of ultraviolet (UV) disinfection in secondary water supply (SWS) systems has been a prevalent practice in recent years in China. However, highly fluctuating flow rates make the regular running of such UV disinfection reactors (i.e., lighting all the lamps all the time) a considerable waste of energy. In this study, an economical-running strategy, which consisted of various lamp operation modes for different time periods, was developed for a 6-lamp UV disinfection reactor in a SWS system. Reactor performances with lamp modes of different lamp output powers (LOPs) were simulated with computational fluid dynamics. Results show that the flow rate in the SWS system varied significantly in a day but shared similar daily variation patterns in the long term. This provided the basis for the economical running of the reactor by reducing the LOP periodically. The optimal lamp mode for a constant LOP was determined by comparing the corresponding reduction equivalent fluences (REFs), which was always found with the on-off switching solution (i.e., switching on/off the lamps according to the flow rates). The mixing efficiency factors (MEFs) of the reactor with various lamp modes were also discussed. The developed economical-running strategy for the reactor could save 32% of energy. This study established a methodology for the economical-running strategy development for UV disinfection reactors in SWS systems and provided an insight into the reactor performance at reduced LOPs.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/41342]
专题	生态环境研究中心_中国科学院饮用水科学与技术重点实验室
推荐引用方式 GB/T 7714	Qiang, Zhimin,Li, Mengkai,Li, Wentao,et al. Development of economical-running strategy for multi-lamp UV disinfection reactors in secondary water supply systems with computational fluid dynamics simulations[J]. CHEMICAL ENGINEERING JOURNAL,2018,343:317-323.
APA	Qiang, Zhimin,Li, Mengkai,Li, Wentao,&Wen, Dong.(2018).Development of economical-running strategy for multi-lamp UV disinfection reactors in secondary water supply systems with computational fluid dynamics simulations.CHEMICAL ENGINEERING JOURNAL,343,317-323.
MLA	Qiang, Zhimin,et al."Development of economical-running strategy for multi-lamp UV disinfection reactors in secondary water supply systems with computational fluid dynamics simulations".CHEMICAL ENGINEERING JOURNAL 343(2018):317-323.