Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/aa9447 |
Replacement policy of residential lighting optimized for cost, energy, and greenhouse gas emissions | |
Liu, Lixi1,2; Keoleian, Gregory A.1; Saitou, Kazuhiro2 | |
2017-11-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS
![]() |
ISSN | 1748-9326 |
出版年 | 2017 |
卷号 | 12期号:11 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Accounting for 10% of the electricity consumption in the US, artificial lighting represents one of the easiest ways to cut household energy bills and greenhouse gas (GHG) emissions by upgrading to energy-efficient technologies such as compact fluorescent lamps (CFL) and light emitting diodes (LED). However, given the high initial cost and rapidly improving trajectory of solid-state lighting today, estimating the right time to switch over to LEDs from a cost, primary energy, and GHG emissions perspective is not a straightforward problem. This is an optimal replacement problem that depends on many determinants, including how often the lamp is used, the state of the initial lamp, and the trajectories of lighting technology and of electricity generation. In this paper, multiple replacement scenarios of a 60 watt-equivalent A19 lamp are analyzed and for each scenario, a few replacement policies are recommended. For example, at an average use of 3 hr day(-1) (US average), it may be optimal both economically and energetically to delay the adoption of LEDs until 2020 with the use of CFLs, whereas purchasing LEDs today may be optimal in terms of GHG emissions. In contrast, incandescent and halogen lamps should be replaced immediately. Based on expected LED improvement, upgrading LED lamps before the end of their rated lifetime may provide cost and environmental savings over time by taking advantage of the higher energy efficiency of newer models. |
英文关键词 | life cycle optimization optimal replacement residential lighting lightemitting diode compact fluorescent lamp energy efficiency solid-state lighting |
领域 | 气候变化 |
收录类别 | SCI-E ; SSCI |
WOS记录号 | WOS:000415614800001 |
WOS关键词 | LIFE-CYCLE OPTIMIZATION ; TECHNOLOGY ; CONSUMPTION ; DECISIONS ; EQUIPMENT ; US |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/31011 |
专题 | 气候变化 |
作者单位 | 1.Univ Michigan, Sch Environm & Sustainabil, Ctr Sustainable Syst, Ann Arbor, MI 48109 USA; 2.Univ Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA |
推荐引用方式 GB/T 7714 | Liu, Lixi,Keoleian, Gregory A.,Saitou, Kazuhiro. Replacement policy of residential lighting optimized for cost, energy, and greenhouse gas emissions[J]. ENVIRONMENTAL RESEARCH LETTERS,2017,12(11). |
APA | Liu, Lixi,Keoleian, Gregory A.,&Saitou, Kazuhiro.(2017).Replacement policy of residential lighting optimized for cost, energy, and greenhouse gas emissions.ENVIRONMENTAL RESEARCH LETTERS,12(11). |
MLA | Liu, Lixi,et al."Replacement policy of residential lighting optimized for cost, energy, and greenhouse gas emissions".ENVIRONMENTAL RESEARCH LETTERS 12.11(2017). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论