The size distribution characteristic of PM emitted from diesel engine and LNG engine

Zhi Hua Liu; Yun Shan Ge; Yan Ding; Chao He; Jian Wei Tan

The size distribution characteristic of PM emitted from diesel engine and LNG engine

Zhi Hua Liu^*, Yun Shan Ge, Yan Ding, Chao He, Jian Wei Tan

^*Corresponding author for this work

School of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

With an electrical low-pressure impactor (ELPI), the particle matter number of an off-road air-cooler diesel engine, a diesel engine and LNG engine were studied on the engine test bench. The test results showed that: at the maximum power mode and maximum torque mode, the PM emissions magnitude are 10⁷ cm^-3, 10⁶ cm^-3, 10⁵ cm^-3 for the off-road engine, diesel engine, LNG engine respectively, while their size distributions were totally different. At fixed engine speed, the brake specific PM number concentration of diesel engine increased with the increase in load. The brake specific PM number concentration of LNG engine showed an increasing trend and then decreasing trend with the increase of load. At fixed throttle opening, the brake specific PM number concentration of diesel engine decreased with the increase in speed, while the brake specific PM number concentration of LNG engine showed an increasing trend and then decreasing trend with the increase of engine speed. The CMD of LNG engine was smaller than that of diesel engine.

Original language	English
Pages (from-to)	518-522
Number of pages	5
Journal	Neiranji Xuebao/Transactions of CSICE (Chinese Society for Internal Combustion Engines)
Volume	27
Issue number	6
Publication status	Published - Nov 2009

Keywords

CMD
Diesel engine
LNG engine
Size distribution

Cite this

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title = "The size distribution characteristic of PM emitted from diesel engine and LNG engine",

abstract = "With an electrical low-pressure impactor (ELPI), the particle matter number of an off-road air-cooler diesel engine, a diesel engine and LNG engine were studied on the engine test bench. The test results showed that: at the maximum power mode and maximum torque mode, the PM emissions magnitude are 107 cm-3, 106 cm-3, 105 cm-3 for the off-road engine, diesel engine, LNG engine respectively, while their size distributions were totally different. At fixed engine speed, the brake specific PM number concentration of diesel engine increased with the increase in load. The brake specific PM number concentration of LNG engine showed an increasing trend and then decreasing trend with the increase of load. At fixed throttle opening, the brake specific PM number concentration of diesel engine decreased with the increase in speed, while the brake specific PM number concentration of LNG engine showed an increasing trend and then decreasing trend with the increase of engine speed. The CMD of LNG engine was smaller than that of diesel engine.",

keywords = "CMD, Diesel engine, LNG engine, Size distribution",

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AU - Liu, Zhi Hua

AU - Ge, Yun Shan

AU - Ding, Yan

AU - He, Chao

AU - Tan, Jian Wei

PY - 2009/11

Y1 - 2009/11

N2 - With an electrical low-pressure impactor (ELPI), the particle matter number of an off-road air-cooler diesel engine, a diesel engine and LNG engine were studied on the engine test bench. The test results showed that: at the maximum power mode and maximum torque mode, the PM emissions magnitude are 107 cm-3, 106 cm-3, 105 cm-3 for the off-road engine, diesel engine, LNG engine respectively, while their size distributions were totally different. At fixed engine speed, the brake specific PM number concentration of diesel engine increased with the increase in load. The brake specific PM number concentration of LNG engine showed an increasing trend and then decreasing trend with the increase of load. At fixed throttle opening, the brake specific PM number concentration of diesel engine decreased with the increase in speed, while the brake specific PM number concentration of LNG engine showed an increasing trend and then decreasing trend with the increase of engine speed. The CMD of LNG engine was smaller than that of diesel engine.

AB - With an electrical low-pressure impactor (ELPI), the particle matter number of an off-road air-cooler diesel engine, a diesel engine and LNG engine were studied on the engine test bench. The test results showed that: at the maximum power mode and maximum torque mode, the PM emissions magnitude are 107 cm-3, 106 cm-3, 105 cm-3 for the off-road engine, diesel engine, LNG engine respectively, while their size distributions were totally different. At fixed engine speed, the brake specific PM number concentration of diesel engine increased with the increase in load. The brake specific PM number concentration of LNG engine showed an increasing trend and then decreasing trend with the increase of load. At fixed throttle opening, the brake specific PM number concentration of diesel engine decreased with the increase in speed, while the brake specific PM number concentration of LNG engine showed an increasing trend and then decreasing trend with the increase of engine speed. The CMD of LNG engine was smaller than that of diesel engine.

KW - CMD

KW - Diesel engine

KW - LNG engine

KW - Size distribution

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The size distribution characteristic of PM emitted from diesel engine and LNG engine

Abstract

Keywords

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