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欧司朗发表LED灯泡完整生命周期评估(LCA)结果 [复制链接]

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高工LED综合报道】

欧司朗针对 LED 灯 实施生命周期评估 (LCA)Life-cycle Assessment 研究显示,最新一代 LED 灯在环保方面表现出色,获得了极高的评分。此项研究深入细致地分析了 LED 灯的整个生命周期,即在 LED灯在生产、使用和废弃方面所消耗的能源和原材料以及在这一过程中对环境造成的影响。研究结果表明,目前 LED 灯已达到省电灯泡的 LCA分值,并且远远优于传统的白炽灯。

要评价LED灯并研究其实际消耗能源和资源的情况,仅考虑其在使用时的能耗是不够的。欧司朗实施 LCA 的目的就是分析 LED灯在整个生命周期过程中对环境的影响,并将其与省电灯泡CFL和白炽灯进行比较。此次评估针对 LED灯的所有元件和生产流程所确定了相关材料和能源供应。除详细分析 LED芯片 和外壳等的各个生产阶段之外,还研究了所有必需的运输环节。除原材料的直接输入外,还记录了与资源回收相关的能源输入、材料和排放。评估结果不仅包括资源消耗和一次能源消耗方面的结论,还涵盖了酸化、富营养化、温室效应、臭氧层损耗和毒性方面的评估结果。

最重要因素 LED高效能欧司朗光实施的首次 LCA显示,即使将累积能源输入和环境因素考虑在内,LED 灯仍然是可替代白炽灯的理想产品。

这些完全不相同的灯通常是按瓦数进行比较的。传统的钨丝灯远远落后于LED 灯;例如,如果用一盏 8 W 的省电灯泡或 8 W 的 LED 灯代替一盏 40 W 的白炽灯,即可节省 80%的电源。

为确保 LCA 结果的可比性,此次评估选用了 25,000 小时的使用寿命作为对照基准。最新一代 LED 灯(采用 GoldenDRAGON Plus LED 的 Parathom Classic A55)真正能达到此级别,但对于白炽灯或省电灯泡,则需要 25盏使用寿命为 1,000 小时的白炽灯 (OSRAM Classic A 40 W) 或 2.5 盏使用寿命为 10,000小时的萤光灯 (Dulux Superstar Classic A 8 W) 才能与之相比。

超过 98%的能耗用于发光此次研究是与西门子研究院生态创新中心 (SiemensCorporate Technology, Centre for Eco Innovations)的专家合作进行的。研究结果表明,LED 灯与省电灯泡CFL相似,也是将超过 98% 的能耗用于发光,只有不到 2%的能耗用于生产,这就打消了人们认为生产 LED 可能特别耗费能源的担忧。白炽灯的一次能源消耗为 3,300 kWh 左右,而 LED灯的一次能源消耗不到 700 kWh,因此,LED 灯显然比传统白炽灯更高效。除此之外,该评估结果还表明,LED灯在整个生命周期中对环境的影响始终优于白炽灯。

随着 LED光效的不断提高,LED 灯将来定能获得更优的 LCA评分。目前,三名独立专家正在对欧司朗公司内部的这一评估结果进行验证。此次评估结果的综述将于 10月份在网上发布。

LED不仅具有前瞻性的能耗效率,而且其整个生命周期评估结果也表明LED灯是最环保的 照明 产品之一。
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