Thermal and elemental analysis of the combustion chamber deposits in a large-scale two-stroke marine diesel engine
Zhang, XS; Zeng, XM; Sun, XC; Deng, BA; Peng, GY; Xie, HL; Wu, ZJ; Xiao, TQ; Zhang, XS (reprint author), Shanghai Maritime Univ, Merchant Marine Coll, Shanghai 201306, Peoples R China.
2015
发表期刊SCIENCE CHINA-TECHNOLOGICAL SCIENCES
ISSN1674-7321
卷号58期号:10页码:1717—1725
文章类型期刊文献
摘要It is of significance to understand the chemical content of carbon deposits in the large-scale two-stroke (LSTS) marine diesel engine because of adverse effect on the engine performance, oil consumption and emissions. In this work, two different combustion chamber deposits in an LSTS marine diesel engine were studied using thermogravimetry analysis (TGA), elemental analysis (EA) and synchrotron X-ray fluorescence (SXRF). One was on the piston top and the other on the piston land, termed PTCD and PLCD, respectively. For the PTCD sample, the 97% residue in the TGA and 1.4% carbon content in the EA indicated the main compositions of PTCD were metal salts or oxides and ashes, significantly different from the previous findings of the highest carbon content in deposits from the small four stroke engines. The different chemical content between PTCD and PLCD implied higher thermal load in the LSTS marine diesel engine led to a nearly complete thermal decomposition of PTCD. The higher calcium content in PTCD and PLCD indicated the additives of cylinder oil should be the main source of metal content of PTCD and PLCD. Calcium distribution in the SXRF results was indicative of the potential layered structure in PTCD and PLCD. In addition, the appearance of iron on the surface against the piston in PTCD and PLCD indicated iron oxides formation between carbon deposit and piston materials.
关键词Fuel Microstructure Emissions Oil
语种英语
WOS记录号WOS:000362347100013
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/25079
专题中科院上海应用物理研究所2011-2018年
通讯作者Zhang, XS (reprint author), Shanghai Maritime Univ, Merchant Marine Coll, Shanghai 201306, Peoples R China.
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GB/T 7714
Zhang, XS,Zeng, XM,Sun, XC,et al. Thermal and elemental analysis of the combustion chamber deposits in a large-scale two-stroke marine diesel engine[J]. SCIENCE CHINA-TECHNOLOGICAL SCIENCES,2015,58(10):1717—1725.
APA Zhang, XS.,Zeng, XM.,Sun, XC.,Deng, BA.,Peng, GY.,...&Zhang, XS .(2015).Thermal and elemental analysis of the combustion chamber deposits in a large-scale two-stroke marine diesel engine.SCIENCE CHINA-TECHNOLOGICAL SCIENCES,58(10),1717—1725.
MLA Zhang, XS,et al."Thermal and elemental analysis of the combustion chamber deposits in a large-scale two-stroke marine diesel engine".SCIENCE CHINA-TECHNOLOGICAL SCIENCES 58.10(2015):1717—1725.
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