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권상일(Sangil Kwon),이우석(Wooseok Lee),홍지형(Jihyung Hong),김현근(Hyungeun Kim),명차리(Cha-Lee Myung) 한국자동차공학회 2009 한국자동차공학회 학술대회 및 전시회 Vol.2009 No.11
UN-GRPE Particulate Measurement Programme (PMP) is a collaborative programme operating under the auspices of the UNECE/GRPE Group. Its focus is on the development of a new approach to the measurement of particle in vehicle exhaust emissions, which may be used to replace or to complement the existing mass based system used for regulatory purposes. This paper is the test results of PMP Heavy-Duty Round-Robin during May to June '09 conducted at National Institute of Environmental Research (NIER) in Korea to analyze the repeatability and reproducibility between laboratories. In addition to regulated gaseous emissions, the real time particle emission was simultaneously measured with CPC, and EEPS during the daily protocol described in "UN-GRPE PMP Phase 3: Inter-laboratory Correlation Exercise: Updated Framework and Laboratory Guide for Heavy Duty (HD) Engine Testing" Detailed particle emissions over various engine certification cycles showed that the particle number concentration (#//kWh) was 3.508E+11 (weighted WHTC), 6.087E+10 (WHSC), 4.596E+10 (ETC), and 3.389E+12 (ESC) respectively. Particle mass (g/kWh) was ranged from 0.0011 (WHSC) to 0.0031 (ESC). The repeatability of particle number and mass were reached about 22~107% and 25~73%. The large CoV of particle emissions was ascribed by ETC mode which value 107% and 73%.
권상일(Sangil Kwon),박경균(Gyunggun Park),박용희(Yonghee Park),이종태(Jongtae Lee),김정수(Jeoungsoo Kim) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
UN-GRPE Particulate Measurement Programme (PMP) is a collaborative programme operating under the auspices of the UNECE/GRPE Group. Its focus is on the development of a new approach to the measurement of particle in vehicle exhaust emissions, which may be used to replace or to complement the existing mass based system used for regulatory purposes. In this study, we evaluated the various factor effected on the particle measurement in heavy duty diesel engine. In addition to regulated gaseous emissions, the real time particle emission was simultaneously measured with CPC, and EEPS on the WHSC mode. CVS tunnel bacground was effected on the PM, however was not effected on the PN. CVS tunnel flow rate and dilution factor was not effected on the PM and PN. On the ESC 7 mode, PN showed stable results after 30 minute, however on the ESC 10 mode, showed stable results after 15 minute. On the test result of DPF soot loading state, empty DPF was emitted 3 times PN than those of 30% soot loading DPF, PM was emitted 50% more than those of 30% soot loading DPF.
승용 2.0L급 휘발유·LPG·경유 자동차의 주행모드별, 극미세입자 배출 특성 분석
권지원(Jiwon Kwon),정명철(Myungchul Chung),김민식(Minsik Kim),성기수(Gisu Sung),우세종(Saejong Woo),권상일(Sangil Kwon),이진욱(Jinwook Lee) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11
The main purpose of this study is to analyze and compare the nano-particle emission characteristics by 3-different fuel(Gasoline, LPG, Diesel) and 2-different driving mode(CVS-75, NEDC) in a 2.0L passenger vehicle. Nano-particle number density emitted by various operating conditions of combustion methods(SI, CI). Test vehicle"s particle emissions was investigated by using the GPMS(Golden Particle Measurement System). Under the driving mode(CVS-75, NEDC) of the 2.0L passenger vehicles with different fuel, the nano-particle number density was measured at the downstream position of DPF(diesel Vehicle), TWC(gasoline, LPG vehicle) system. As a result, this research indicates that all results are much lower than permissible emission regulation (6×10 <SUP>11</SUP>#/km).