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首页> 外文期刊>Renewable energy >Technical and economic studies on lighting systems: A case for LED lanterns and CFLs in rural Ghana
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Technical and economic studies on lighting systems: A case for LED lanterns and CFLs in rural Ghana

机译：照明系统的技术和经济研究：加纳农村地区的LED灯笼和节能灯案例

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摘要

Studies have shown that 50.1% of Ghana's 22,900,927 population use kerosene as fuel source for lighting. Statistics further established that 75.6% of Ghana's rural population and 19.9% of the urban population use kerosene as fuel for lighting. This situation has brought about diverse problems of poor indoor air quality. For instance, a survey conducted among 113 non-electrified households in 16 rural communities, located in six regions in Ghana that use kerosene lanterns established that 69% of the households observed soot particulates in a household member's nostril in the morning. In light of the known health effects of kerosene usage for lighting in poorly ventilated structures and the recent global increases in the prices of petroleum products, this study is designed to assess the suitability of solar-powered LED and CFL lighting systems as replacement for kerosene lanterns. The technical analysis was done by measuring the luminous flux of each lighting system on a flat surface measuring 1 m by 1.2 m using a portable lux meter. The economic analysis was based on a two-year simple payback period. Results from the study showed that the cost of illumination ranges from $0,061 per thousand lux-hours (klxh) for Goshen solar lantern to $0,261 per klxh for Gentlite solar lantern with kerosene lantern costing $0,227 per klxh. The analysis established that switching to the solar-LED and CFL systems (lanterns A, B and D) would have a payback time of less than two years when replacing the wick-type kerosene lantern with between $11.60 and $61.60 to save annually. When evaluated in terms of total cost of ownership (fixed and variable), the solar-powered LED and CFL systems emerged as the most cost-effective solution. Emissions analysis conducted revealed that the solar-powered systems save between 80.15 and 256.49 kg CO2/year. The annual CO2 emissions per kerosene lantern were estimated to be 60.99 kg. Therefore, the most significant deduction from the study is that the solar-powered LED and CFL lighting systems are a viable and cost effective off-grid lighting alternative for fuel-based lighting systems in rural Ghana.
机译：研究表明，加纳22,900,927人口中有50.1％使用煤油作为照明燃料。统计数据进一步确定，加纳农村人口的75.6％和城市人口的19.9％使用煤油作为照明燃料。这种情况带来了室内空气质量差的各种问题。例如，对位于加纳六个地区使用煤油灯的16个农村社区的113个非电气化家庭进行了一项调查，结果发现，有69％的家庭在早晨观察到了一个家庭成员的鼻孔中的烟尘颗粒。鉴于通风不良的建筑中使用煤油对健康的已知影响以及近期全球石油产品价格上涨，本研究旨在评估太阳能LED和CFL照明系统是否适合替代煤油灯。通过使用便携式照度计在1 m x 1.2 m的平面上测量每个照明系统的光通量来进行技术分析。经济分析是基于两年的简单投资回收期。研究结果表明，照明成本从Goshen太阳能灯每千lux-hour（klxh）0,061美元到Gentlite煤油灯太阳能灯每klxh $ 0,227每千lux-h（klxh）不等。该分析确定，如果以每年11.60至61.60美元的价格替换灯芯型煤油灯，改用太阳能LED和CFL系统（A，B和D灯笼）的回收期不到两年。根据总拥有成本（固定和可变）进行评估时，太阳能LED和CFL系统成为最具成本效益的解决方案。进行的排放分析表明，太阳能系统每年可节省80.15至256.49千克二氧化碳。每个煤油灯每年的二氧化碳排放量估计为60.99千克。因此，从研究中得出的最重要的推论是，太阳能LED和CFL照明系统是加纳农村地区基于燃料的照明系统的可行且经济高效的离网照明替代方案。

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  • 来源
    《Renewable energy》 |2012年第2012期|p.282-288|共7页
  • 作者

    C.K.K. Sekyere; F.K. Forson; F.O. Akuffo;

  • 作者单位

    Department of Mechanical Engineering, KNUST, Kumasi, Ghana;

    Department of Mechanical Engineering, KNUST, Kumasi, Ghana;

    Department of Mechanical Engineering, KNUST, Kumasi, Ghana;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    lighting systems; illuminance; solar powered; LED; CFLs;

    机译：照明系统;照度太阳能;发光二极管;节能灯;

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