期刊
JOURNAL OF CENTRAL SOUTH UNIVERSITY
卷 26, 期 8, 页码 2244-2258出版社
JOURNAL OF CENTRAL SOUTH UNIV
DOI: 10.1007/s11771-019-4170-z
关键词
Butanol isomers; unregulated emission; combustion characteristics; gas chromatograph; SI engine
资金
- National Natural Science Foundation of China [51776016, 51606006]
- Beijing Natural Science Foundation, China [3172025, 3182030]
- National Key Research and Development Program [2017YFB0103401]
- National Engineering Laboratory for Mobile Source Emission Control Technology, China [NELMS2017A10]
- Talents Foundation of Beijing Jiaotong University, China [2018RC017]
- Department of Energy [DE-EE0006864]
- China Scholarship Council [201507090044]
Effects of butanol isomers on characteristics of combustion and emission were studied on PFI SI engine. Experiments were operated under the condition of 3 and 5 bar brake mean effective pressure (BMEP) engine loads and different equivalence ratios (phi=0.83-1.25) with engine speed of 1200 r/min using blends made of 70 vol.% gasoline and 30 vol.% butanol isomers (N30, S30, I30 and T30). The results indicated that compared with gasoline, all butanol isomer blends have higher cylinder pressure. N30 has the highest and most advanced peak pressure, and T30 shows a higher brake specific fuel consumption (BSFC) and lower brake thermal efficiency (BTE). N30 presents a lower UHC emissions and I30 has slightly higher CO emissions than other blends. For unregulated emissions, compared with gasoline, butanol isomer blends have higher acetaldehyde, and N30 produces a higher emission of 1,3-butadiene than other blends. A reduction in benzene, toluene, ethylbenzene and xylene (BTEX) has been found with butanol isomer blends.
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