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首页> 外文期刊>Environmental Science & Technology >Particle- and Gaseous Emissions from an LNG Powered Ship
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Particle- and Gaseous Emissions from an LNG Powered Ship

机译：LNG动力船的颗粒和气体排放

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摘要

Measurements of particle number and mass concentrations and number size distribution of particles from a ship running on liquefied natural gas (LNG) were made onboard a ship with dual-fuel engines installed. Today there is a large interest in LNG as a marine fuel, as a means to comply with sulfur and NO_x regulations. Particles were studied in a wide size range together with measurements of other exhaust gases under different engine loads and different mixtures of LNG and marine gas oil. Results from these measurements show that emissions of particles, NO_x, and CO_2 are considerably lower for LNG compared to present marine fuel oils. Emitted particles were mainly of volatile character and mainly had diameters below 50 nm. Number size distribution for LNG showed a distinct peak at 9-10 nm and a part of a peak at diameter 6 nm and below. Emissions of total hydrocarbons and carbon monoxide are higher for LNG compared to present marine fuel oils, which points to the importance of considering the methane slip from combustion of LNG.
机译：在安装有双燃料发动机的船上进行了液化天然气（LNG）航行的船舶的颗粒数量和质量浓度以及颗粒尺寸分布的测量。如今，作为船用燃料的液化天然气（LNG）作为一种符合硫和NO_x法规的手段，引起了人们极大的兴趣。在不同的发动机负荷以及液化天然气和船用汽油的不同混合物下，对各种尺寸的颗粒进行了研究，同时还测量了其他废气。这些测量的结果表明，与目前的船用燃料油相比，LNG的颗粒，NO_x和CO_2的排放量要低得多。发射的颗粒主要具有挥发性，并且主要具有小于50nm的直径。 LNG的数量大小分布在9-10 nm处有一个明显的峰，在直径6 nm及以下时有一部分峰。与目前的船用燃料油相比，LNG的总碳氢化合物和一氧化碳的排放量更高，这表明考虑LNG燃烧产生的甲烷泄漏的重要性。

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  • 来源
    《Environmental Science & Technology》 |2015年第20期|12568-12575|共8页
  • 作者

    Maria Anderson; Kent Salo; Erik Fridell;

  • 作者单位

    Department of Shipping and Marine Technology, Chalmers University of Technology, 412 96 Gothenburg, Sweden;

    Department of Shipping and Marine Technology, Chalmers University of Technology, 412 96 Gothenburg, Sweden;

    Department of Shipping and Marine Technology, Chalmers University of Technology, 412 96 Gothenburg, Sweden,IVL Swedish Environmental Research Institute, PO Box 5302, 400 14 Gothenburg, Sweden;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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  • 正文语种 eng
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