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Article

Effect of Cylinder Air Pressure and Hot Surface Temperature on Ignition Delay of Diesel Spray in a Constant Volume Combustion Chamber

School of Mechanical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan-si, Gyeongbuk 712-749, Korea
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Energies 2019, 12(13), 2565; https://doi.org/10.3390/en12132565
Received: 4 June 2019 / Revised: 30 June 2019 / Accepted: 2 July 2019 / Published: 3 July 2019
Present-day direct injection (DI) diesel engines with a high power density of displacement are not just promoting an expansion in the utilization of high-temperature resistant alloys in pistons yet, in addition, the expanded cylinder air pressures. When the temperature of the diesel engines piston exceeds a certain limit, it assumes a critical role at the start of sprays. The target of the present investigation was to look at the effects of cylinder air pressures (CAP) (10–25 bar) and high hot surface temperatures (HST) (350–450 °C). The ignition delay (ID) of pure diesel and that of diesel with Iftex clean system D (a cetane enhancer) are investigated experimentally. The experiments are performed by using a constant volume combustion chamber (CVCC) with a single hole pintle-type nozzle mounted on its head. A strong dependence of ID on the CAPs and HSTs was observed. A CAP of 25 bar is much inferior to the precombustion pressure of DI diesel engines; however, it is the case that combustion typical features are the same in spite of an inferior CAP, HST, and injection pressure. The ID tends to decrease to very small values with an increase in either of the two parameters. At a CAP of 25 bar, the measured ID of diesel with fuel additive is 45.8% lower than the pure diesel. Further, the ID of diesel with fuel additive at a 300 bar injection pressure and 25 bar CAP decreases at a rate of close to 0.2 ms/bar. View Full-Text
Keywords: constant volume combustion chamber; cylinder air pressure; fuel additives; ignition delay hot surface temperature constant volume combustion chamber; cylinder air pressure; fuel additives; ignition delay hot surface temperature
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MDPI and ACS Style

Salman, M.; Kim, S.C. Effect of Cylinder Air Pressure and Hot Surface Temperature on Ignition Delay of Diesel Spray in a Constant Volume Combustion Chamber. Energies 2019, 12, 2565. https://doi.org/10.3390/en12132565

AMA Style

Salman M, Kim SC. Effect of Cylinder Air Pressure and Hot Surface Temperature on Ignition Delay of Diesel Spray in a Constant Volume Combustion Chamber. Energies. 2019; 12(13):2565. https://doi.org/10.3390/en12132565

Chicago/Turabian Style

Salman, Mohammad, and Sung C. Kim. 2019. "Effect of Cylinder Air Pressure and Hot Surface Temperature on Ignition Delay of Diesel Spray in a Constant Volume Combustion Chamber" Energies 12, no. 13: 2565. https://doi.org/10.3390/en12132565

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