干旱区生态环境知识资源中心(Arid): Effects of dimethyl carbonate and 2-ethylhexyl nitrate on energy distribution, combustion and emissions in a diesel engine under different load conditions

Arid

DOI	10.1016/j.enconman.2019.111985
	Effects of dimethyl carbonate and 2-ethylhexyl nitrate on energy distribution, combustion and emissions in a diesel engine under different load conditions
	Pan, Mingzhang 1; Qian, Weiwei 1; Huang, Rong 1; Tong, Chengzheng 1; Huang, Haozhong 1; Xu, Leilei 1; Hao, Bin 2
通讯作者	Pan, Mingzhang ; Huang, Haozhong
来源期刊	ENERGY CONVERSION AND MANAGEMENT
ISSN	0196-8904
EISSN	1879-2227
出版年	2019
卷号	199
英文摘要	Dimethyl carbonate (DMC)/diesel blended fuels are receiving increasing attention due to the advantages of DMC (oxygen content 53.3%) that improved the fuel-rich zone of diesel engines. However, the low cetane number (CN) of DMC/diesel dual-fuel at low loads resulted in a delayed combustion progress. Since the combustion phase had a significant effect on thermal efficiency, exergetic efficiency, energetic and exergetic losses; 2-ethyihexyl nitrate (EHN) was added to the mixed fuel as a CN improver, so that the combustion phase closed to that of diesel to ensure proper combustion characteristics of the DMC/diesel dual-fuel. In this study, a four-cylinder turbocharged diesel engine was used to study performance arid emissions. Based on experiments, combustion characteristics including energy balance and exergy balance were focused, in which the EHN was added to the DMC/diesel mixture at different concentrations. The five test fuels included diesel (D100), and a mixture of 20% DMC with 80% diesel (DMC20). In addition, EHN was added to DMC20 at a ratio of 0.5%, 1%, and 2%. The results showed that EHN could shorten the ignition delay time of DMC and reduced maximum pressure rise rate (MPRR). The use of EHN improved brake thermal efficiency (BTE) and brake specific fuel consumption (BSFC), under the same load, using 0.5% and 2% EHN, BTE increased by 0.2% and 1%, relative to DMC20, respectively. The study found that the energy efficiency and exergy efficiency were higher after adding EHN, which made up for the burning problem of DMC. Moreover, the irreversible loss reduced, and the available work and available energy increased. Thermodynamic analysis showed that DMC had better combustion performance than diesel after adding 2% EHN. In this study, the method of EHN/DMC/diesel blended fuel combining with 25% EGR was proposed and confirmed that the trade-off relationships of NOX and soot have been improved noteworthy.
英文关键词	Dimethyl carbonate 2-Ethylhexyl nitrate Energetic and exergetic balance Combustion and emissions Fuel property
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000494884000021
WOS关键词	2ND LAW ANALYSIS ; EXHAUST EMISSIONS ; CETANE-IMPROVER ; GASOLINE-ENGINE ; LEAN COMBUSTION ; INTAKE SWIRL ; NATURAL-GAS ; SOOT MODEL ; N-BUTANOL ; IGNITION
WOS类目	Thermodynamics ; Energy & Fuels ; Mechanics
WOS研究方向	Thermodynamics ; Energy & Fuels ; Mechanics
EI主题词	2019-11-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310667
作者单位	1.Guangxi Univ, Guangxi Key Lab Mfg Syst & Adv Mfg Technol, Sch Mech Engn, Nanning 530004, Peoples R China; 2.Zhengzhou Yutong Bus Co Ltd, Zhengzhou 450016, Henan, Peoples R China
推荐引用方式 GB/T 7714	Pan, Mingzhang,Qian, Weiwei,Huang, Rong,et al. Effects of dimethyl carbonate and 2-ethylhexyl nitrate on energy distribution, combustion and emissions in a diesel engine under different load conditions[J],2019,199.
APA	Pan, Mingzhang.,Qian, Weiwei.,Huang, Rong.,Tong, Chengzheng.,Huang, Haozhong.,...&Hao, Bin.(2019).Effects of dimethyl carbonate and 2-ethylhexyl nitrate on energy distribution, combustion and emissions in a diesel engine under different load conditions.ENERGY CONVERSION AND MANAGEMENT,199.
MLA	Pan, Mingzhang,et al."Effects of dimethyl carbonate and 2-ethylhexyl nitrate on energy distribution, combustion and emissions in a diesel engine under different load conditions".ENERGY CONVERSION AND MANAGEMENT 199(2019).