Performance and emissions of an electronic control common-rail diesel engine fuelled with liquefied natural gas-diesel dual-fuel under an optimization control scheme. (May 2019)

• Record Type: Journal Article
• Authors: Song, Jiantong; Zhang, Chunhua; Lin, Guoqing; Zhang, Quanchang
• Is Part Of: Proceedings of the Institution of Mechanical Engineers. Volume 233:Number 6(2019:Jun.)
• Page Start: 1380
• Page End: 1390
• Publication Date: 2019-05
• Subjects: Common-rail diesel engine -- liquefied natural gas-diesel dual-fuel -- optimization control scheme -- performance -- exhaust emissions; Mechanical engineering -- Congresses; Transportation engineering -- Congresses; 629.2
• DOI: 10.1177/0954407018801076
• Languages: English
• ISSNs: 0954-4070

Abstract

In order to reduce the fuel consumption and hydrocarbon and CO emissions of liquefied natural gas-diesel dual-fuel engines under light loads, an optimization control scheme, in which the dual-fuel engine runs in original diesel mode under light loads, is used in this paper. The performance and exhaust emissions of the dual-fuel engine and the original diesel engine are compared and analyzed by bench tests of an electronic control common-rail diesel engine. Experimental results show that the brake-specific fuel consumption and hydrocarbon and CO emissions of the liquefied natural gas-diesel dual-fuel engine are not deteriorated under light loads. Compared with diesel, the brake power and torque of dual-fuel remain unchanged, the brake-specific fuel consumption decreases, and the smoke density and CO2 emissions of dual-fuel decrease, while the hydrocarbon and CO emissions increase, and there is no significant difference in NOx emissions.