|Title||김재헌, 박현욱, 배충식, “ECN 연구용 고온 고압 정적 연소실에서의 n-dodecane 분무 및 연소 특성”, Vol. 19, No. 4, pp188-196 2014.|
김재헌, 박현욱, 배충식, “ECN 연구용 고온 고압 정적 연소실에서의 n-dodecane 분무 및 연소 특성”, Vol. 19, No. 4, pp188-196 2014.
The spray and combustion characteristics of n-dodecane fuel were investigated in a CVCC (constant volume combustion chamber). The selection of ambient conditions for the spray followed ECN (engine combustion network) guidelines, which simulates the ambient condition of diesel engines at start of fuel injection. ECN is a collaboration network whose main objective is to establish an internet library of well-documented experiments that are appropriate for model validation and the advancement of scientific understanding of combustion at conditions specific to engines. Therefore repeatability of the experiments with high accuracy was important. The ambient temperature was varied from 750 to 930 K while the density was fixed at around23kg/m3 . The injection pressure of the fuel was varied from 500 to 1500 bar. The spray was injected in both non-reacting ( O2concentration of 0%) and reacting conditions ( O2 concentration of 15%) to examine the spray and the combustion characteristics. Direct imaging with Mie Scattering was used to obtain the liquid penetration length. Shadowgraph was implemented to observe vapor length and lift-off length at non-reacting and reacting conditions, respectively. Pressure data was analyzed to determine the ignition delay with respect to the spray and ambient conditions.
|Previous||박영수, 배충식, “고압/저압 EGR 공급 비율에 따른 디젤 엔진의 연소 및 배기 특성”, 한국자동차공학회논문집, Vol. 22, No. 7, pp.90-97, 2014.|
|Next||박찬수, 정진영, 배충식, “TiAl 터빈을 적용한 과급 직분식 전기점화 엔진의 과도운전 성능특성”, 한국자동차공학회 논문집(in press).|