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实际工况下内河航行船舶NOx排放测试与分析研究
Study on emission test and analysis of NOx from inland ship under real-world operating modes
投稿时间:2017-12-05  修订日期:2018-04-02
DOI:
中文关键词:  NO  NO2  内河船舶  排放因子  便携式排放测试系统
英文关键词:NO  NO2  inland ship  emission factor  portable emission measurement system
基金项目:国家自然科学基金,移动源污染控制国家工程实验室开放基金
作者单位E-mail
付明亮 清华大学 fumingliang160@163.com 
刘欢 清华大学  
贺克斌 清华大学  
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中文摘要:
      为获得NOx的排放特征,利用便携式排放测试系统(PEMS)对7艘京杭运河中航行的内河船舶进行了实际工况下的排放测试。测量结果表明:进、离港工况下NO和NO2的浓度波动明显,而在巡航工况下NO浓度保持稳定且处于较高的排放水平。巡航工况下NO的基于时间的平均排放因子分别是进港和离港工况排放因子的3.22和1.74倍。而NO2离港工况下的平均排放因子分别是巡航工况和进港工况下的平均排放因子1.18和1.96倍。受到航行距离的影响,进港工况下NO和NO2基于距离的平均排放因子高于其他两个工况下的排放因子。当发动机处于高转速时,NO的排放因子最高,而NO2则在中转速下的排放因子最高。
英文摘要:
      In this study, seven inlands ships were tested by using portable emission measurement system(PEMS) to analyze the real-world emission of NO and NO2. Operating modes include port-departure, port-arrival, and cruise. Results show that variations of NO and NO2occurred on port-arrival and port-departure modes. On cruise mode, concentration of NO was higher and stable. The average time-based emission factor of NO on cruise mode is 3.22 and 1.74 times higher than it on port-arrival and port-departure modes, respectively. The average time-based emission factor of NO2on port-departure mode is 1.18 and 1.96 times higher than it on cruises and port-arrival modes, respectively. Due to the shorter distance, the average distance-based emission factors of NO and NO2 on port-arrival are higher than those on cruise and port-departure modes. The NO emission factor is higher when the engine speed is higher, while NO2 emission factor on middle engine speed is higher than it on low engine speed and high engine speed.
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