On-road emissions from urban buses with SCR + Urea and EGR + DPF systems using diesel and biodiesel |
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| Authors: | José María López Felipe Jiménez Francisco Aparicio Nuria Flores |
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| Institution: | 1. Automobile Research Center, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju, 61186, South Korea;2. School of Mechanical Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju, 61186, South Korea;1. Key Laboratory of Fluid and Power Machinery, Ministry of Education, School of Energy and Power Engineering, Xihua University, Chengdu 610039, PR China;2. Vehicle Measurement, Control and Safety Key Laboratory of Sichuan Province, School of Automobile and Transportation, Xihua University, Chengdu 610039, PR China;3. Department of Mechanical and Electrical Engineering, Nanchong Vocational and Technical College, Nanchong 637131 PR China;4. Department of Engineering and Design, University of Sussex, Brighton BN1 9QT, UK;1. State Key Laboratory of Engines, Tianjin University, Tianjin 300072, China;2. Tianjin Electronic Information College, Tianjin 300350, China;1. School of Mechanical and Transportation Engineering, Guangxi University of Science and Technology, Liuzhou 545006, China;2. School of Mechanical and Marine Engineering, Beibu Gulf University, Qinzhou 53500, China;3. Institute of the New Energy and Energy-saving&Emission-reduction, Guangxi University of Science and Technology, Liuzhou 545006, China |
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| Abstract: | Due to growing concerns about NOx and particulate matter (PM) emissions from diesel engines, stricter regulations are being introduced requiring advanced emission control technology. In response the diesel industry has begun testing various emission control technologies and applying them. To assess vehicle renewal policies of bus companies, two exhaust after-treatment technologies are compared: the combination of a diesel particulate filter and an exhaust gas re-circulation system and the combination of a selective catalytic reduction and urea. On-board emission measurements were conducted under real-world driving conditions on a specific bus route in the city of Madrid. |
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