Improving Light Distribution by Zoom Lens for Electricity Savings in a Plant Factory with Light-Emitting Diodes

doi:10.3389/fpis.2016.00092

CORC > 中国农业科学院 > 农业环境与可持续发展研究所 > 环境工程研究室

	Improving Light Distribution by Zoom Lens for Electricity Savings in a Plant Factory with Light-Emitting Diodes
	Li, Kun 1,2; Li, Zhipeng 1,2; Yang, Qichang 1,2
刊名	FRONTIERS IN PLANT SCIENCE
	2016
卷号	7 页码:-
关键词	reserved growing space principles during transplanting precise illuminating zoom light use efficiency
ISSN号	1664-462X
DOI	10.3389/fpis.2016.00092
通讯作者	Li, Kun
英文摘要	The high energy consumption of a plant factory is the biggest issue in its rapid expansion, especially for lighting electricity, which has been solved to a large extent by light-emitting diodes (LED). However, the remarkable potential for further energy savings remains to be further investigated. In this study, an optical system applied just below the LED was designed. The effects of the system on the growth and photosynthesis of butterhead lettuce (Lactuca sativa var. capitata) were examined, and the performance of the optical improvement in energy savings was evaluated by comparison with the traditional LED illumination mode. The irradiation patterns used were LED with zoom lenses (Z-LED) and conventional non-lenses LED (C-LED). The seedlings in both treatments were exposed to the same light environment over the entire growth period. The improvement saved over half of the light source electricity, while prominently lowering the temperature. Influenced by this, the rate of photosynthesis sharply decreased, causing reductions in plant yield and nitrate content, while having no negative effects on morphological parameters and photosynthetic pigment contents. Nevertheless, the much higher light use efficiency of Z-LEDs makes this system a better approach to illumination in a plant factory with artificial lighting.
学科主题	Plant Sciences
语种	英语
出版者	FRONTIERS MEDIA SA
WOS记录号	WOS:000369801300001
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/19715]
专题	农业环境与可持续发展研究所_环境工程研究室
作者单位	1.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing 100193, Peoples R China 2.Minist Agr, Key Lab Energy Conservat & Waste Management Agr S, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Li, Kun,Li, Zhipeng,Yang, Qichang. Improving Light Distribution by Zoom Lens for Electricity Savings in a Plant Factory with Light-Emitting Diodes[J]. FRONTIERS IN PLANT SCIENCE,2016,7:-.
APA	Li, Kun,Li, Zhipeng,&Yang, Qichang.(2016).Improving Light Distribution by Zoom Lens for Electricity Savings in a Plant Factory with Light-Emitting Diodes.FRONTIERS IN PLANT SCIENCE,7,-.
MLA	Li, Kun,et al."Improving Light Distribution by Zoom Lens for Electricity Savings in a Plant Factory with Light-Emitting Diodes".FRONTIERS IN PLANT SCIENCE 7(2016):-.