Experimental and Numerical Study of Jet Controlled Compression Ignition on Combustion Phasing Control in Diesel Premixed Compression Ignition Systems
Abstract
:1. Introduction
2. The JCCI System
3. Experimental and Numerical Setup
Engine type | Specifications |
---|---|
Bore × stoke | 86 mm × 72 mm |
Compression ratio | 12 |
Ignition chamber volume | 1.7 mL |
Rated speed for diesel engine | 3000 rpm |
Rated power for diesel engine | 5.68 kW |
Intake valve opening (IVO) | 8.5° BTDC |
Intake valve closing (IVC) | 44.5° ABDC |
Exhaust valve opening (EVO) | 55.5° BBDC |
Exhaust valve closing (EVC) | 8.5° ATDC |
Computational setup | Specifications |
---|---|
Turbulent model | RNG k–ε model [23] |
Breakup model | KH-RT model [24] |
Combustion model | ECFM-3Z model [25] |
Swirl ratio | 2.5 |
Intake pressure | 1.01 bar |
Intake temperature | 293 ± 3 K |
Cylinder liner temperature | 470 K |
Cylinder head temperature | 550 K |
Piston wall temperature | 550 K |
Ignition chamber wall temperature | 580 K |
Operating parameters | Specifications |
---|---|
Speed | 3000 rpm |
BMEP | 1.09 bar to 3.27 bar |
Spark timing | 20° to 5° BTDC |
Diesel injection timing | 45° BTDC |
LPG injection timing | 120° BTDC |
4. Results and Discussion
4.1. Numerical Analysis of Ignition Process in JCCI
4.2. Analysis of Spark Timing Sweep Experimental Results
4.2.1. Effects of Spark Timing on Combustion Characteristics
4.2.2. Effects of Spark Timing on Emissions
5. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
References
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Zhang, Q.; Long, W.; Tian, J.; Wang, Y.; Meng, X. Experimental and Numerical Study of Jet Controlled Compression Ignition on Combustion Phasing Control in Diesel Premixed Compression Ignition Systems. Energies 2014, 7, 4519-4531. https://doi.org/10.3390/en7074519
Zhang Q, Long W, Tian J, Wang Y, Meng X. Experimental and Numerical Study of Jet Controlled Compression Ignition on Combustion Phasing Control in Diesel Premixed Compression Ignition Systems. Energies. 2014; 7(7):4519-4531. https://doi.org/10.3390/en7074519
Chicago/Turabian StyleZhang, Qiang, Wuqiang Long, Jiangping Tian, Yicong Wang, and Xiangyu Meng. 2014. "Experimental and Numerical Study of Jet Controlled Compression Ignition on Combustion Phasing Control in Diesel Premixed Compression Ignition Systems" Energies 7, no. 7: 4519-4531. https://doi.org/10.3390/en7074519