EMISSION CHARACTERISTICS OF GASEOUS POLLUTANTS AND PARTICULATE MATTER FROM A SMALL TURBOFAN ENGINE UNDER MULTIPLE OPERATING CONDITIONS

ZHAO Jingbo; WANG Rui; HAN Bo; DENG Tian; MA Simeng; HAN Bin

doi:10.13205/j.hjgc.202412018

Volume 42 Issue 12

Dec. 2024

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ZHAO Jingbo, WANG Rui, HAN Bo, DENG Tian, MA Simeng, HAN Bin. EMISSION CHARACTERISTICS OF GASEOUS POLLUTANTS AND PARTICULATE MATTER FROM A SMALL TURBOFAN ENGINE UNDER MULTIPLE OPERATING CONDITIONS[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(12): 145-154. doi: 10.13205/j.hjgc.202412018

Citation:

ZHAO Jingbo, WANG Rui, HAN Bo, DENG Tian, MA Simeng, HAN Bin. EMISSION CHARACTERISTICS OF GASEOUS POLLUTANTS AND PARTICULATE MATTER FROM A SMALL TURBOFAN ENGINE UNDER MULTIPLE OPERATING CONDITIONS[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(12): 145-154. doi: 10.13205/j.hjgc.202412018

Citation:

ZHAO Jingbo, WANG Rui, HAN Bo, DENG Tian, MA Simeng, HAN Bin. EMISSION CHARACTERISTICS OF GASEOUS POLLUTANTS AND PARTICULATE MATTER FROM A SMALL TURBOFAN ENGINE UNDER MULTIPLE OPERATING CONDITIONS[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(12): 145-154. doi: 10.13205/j.hjgc.202412018

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EMISSION CHARACTERISTICS OF GASEOUS POLLUTANTS AND PARTICULATE MATTER FROM A SMALL TURBOFAN ENGINE UNDER MULTIPLE OPERATING CONDITIONS

doi: 10.13205/j.hjgc.202412018

ZHAO Jingbo^1,2,
WANG Rui^1,2,
HAN Bo^{1,2
,
,},
DENG Tian³,
MA Simeng^1,2,
HAN Bin⁴

1. School of Transportation Science and Engineering, Civil Aviation University of China, Tianjin 300300, China;
2. Research Centre for Environment and Sustainable Development of Civil Aviation of China, Civil Aviation University of China, Tianjin 300300, China;
3. School of Sino-European Institute of Aviation Engineering, Civil Aviation University of China, Tianjin 300300, China;
4. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China

Received Date: 2024-06-26
Available Online: 2025-01-18

Abstract

Abstract

The DGEN380 engine was chosen as a representative turbofan engine for jet business aircrafts, and the emission characteristics of gaseous pollutants and particulate matter from this engine were tested on December 23, 2023, at multiple operating conditions (including three operating conditions at a thrust level of 10%, 30%, and 45%). The results indicated that 1) NO and NO_x emission factors increased significantly with increasing thrust level, while the emission factors of NO₂ and CO showed a decreasing trend. Under the 10% thrust condition, the particle size distribution of particulate matter exhibited a bimodal pattern, with two peaks at 20 nm and 100 nm. The total number concentration of particles was found to be 3.4 to 3.9 times higher than that under 30% and 45% thrust conditions. 2) Further analysis of the composition of particulate matter fractions in different size ranges revealed high emission factors for Na, Mg, Fe, S, and Cu elements in the particulate matter. These elements accounted for more than 80% of the total composition at various thrust levels. The organic carbon component had the highest proportion as OC3 (25.67% to 56.56%), which varied significantly with engine thrust level; meanwhile, elemental carbon (EC) content remained relatively stable across all thrust levels. 3) Ionic components were predominantly composed of SO^2-₄, NO^-₃, and Cl^-, with average emission factors ranging from 0.24 mg/kg to 1.60 mg/kg across all three thrust levels. 4) A stepwise regression analysis linking pollutant emissions concentrations to engine parameters revealed that average combustion chamber inlet temperature was a key factor influencing CO emissions; NO and NO_x emission concentrations were positively correlated with lube oil flow rate; while particulate matter emissions showed a negative correlation with both average combustion chamber inlet temperature and inlet pressure. These findings can provide effective data for assessing pollutant emission characteristics in jet business aircraft, and offer scientific insights for preventing and controlling air pollution at airports serving such aircrafts.
- small turbofan engine,
- exhaust emission,
- particle size distribution,
- component composition,
- influencing factor

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References(36)

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