دوره 11، شماره 2 - ( 3-1400 )                   جلد 11 شماره 2 صفحات 3559-3547 | برگشت به فهرست نسخه ها


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Borjian Fard B, Gharehghani A, Bahri B. Modeling and Optimization of Diesel-Natural Gas RCCI Engine Performance, Combustion Noise and Emissions using Response Surface Method. ASE 2021; 11 (2) :3547-3559
URL: http://www.iust.ac.ir/ijae/article-1-533-fa.html
Modeling and Optimization of Diesel-Natural Gas RCCI Engine Performance, Combustion Noise and Emissions using Response Surface Method. Automotive Science and Engineering. 1400; 11 (2) :3547-3559

URL: http://www.iust.ac.ir/ijae/article-1-533-fa.html


چکیده:   (7721 مشاهده)
Reactivity control compression ignition (RCCI) engines have demonstrated high-efficient and clean combustion but still suffer from ringing operation at upper load and production of unburned hydrocarbon (uHC) and carbon monoxide (CO) emissions at lower load. In this study, statistical analysis and experimental testing were conducted to consider the effects of input parameters such as intake temperature (Tin), equivalent ratio (Φ) and engine speed on emissions, combustion noise and performance of a 0.5 liter RCCI engine using response surface method (RSM) with the aim to minimize emissions and combustion noise and to maximize parameters of performance. The developed models for measured responses like uHC, CO, nitrogen oxides (NOx) and calculated responses such as indicated mean effective pressure (IMEP) and combustion noise level (CNL) were statistically considered to be significant by analysis of variance (ANOVA). Interactive effects between Tin, Φ and engine speed for all operating points were analyzed by 3-D response surface plots. The results from this study indicated that at optimum input parameters, the values of uHC, CO, NOx, IMEP and CNL were found to be 90.3 (ppm), 106.8 (ppm), 248.2 (ppm), 11.7 (bar) and 87 (db), respectively. The models were validated by confirmatory tests, indicating the error in prediction less than 5%.
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نوع مطالعه: پژوهشي | موضوع مقاله: موتور احتراق داخلی

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