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Experimental investigation of ignition timing on the performance and emission characteristics of a crank-rocker engine

Mohammed, S.E. and Baharom, M.B. and Aziz, A.R.A. and Zainal, A.E.Z. and Firmansyah, F. (2018) Experimental investigation of ignition timing on the performance and emission characteristics of a crank-rocker engine. International Journal of Vehicle Structures and Systems, 10 (2). pp. 146-149.

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Abstract

The effects of varying the ignition timing on the performance and emissions characteristics of a crank-rocker engine were experimentally investigated. Experiments were carried out at five different ignition timings of 6.5°, 8.5°, 10.5°, 12.5°and 14.5° CA BTDC at engine speed of 2000rpm and wide open throttle position. Performance data such as brake torque, brake power, brake specific fuel consumption and brake thermal efficiency were calculated. Engine exhaust gas emission such as CO, CO2, HC and NOx have also been measured. The results showed that at 10.5° CA (BTDC) ignition timing, the crank-rocker engine produce maximum brake torque, brake power, BTE and minimum value for the BSFC. In general, CO and HC emissions decreased while CO2 and NOx emissions increased with ignition timing advance. The findings in this paper are useful for researchers and engine developers in understanding the trade-offs and physical limitations of crank-rocker engine designs. © 2018.

Item Type:Article
Impact Factor:cited By 0
Uncontrolled Keywords:Carbon dioxide; Economic and social effects; Engine cylinders; Exhaust gases; Exhaust systems (engine); Fuel consumption; Gas emissions; Ignition; Nitrogen oxides; Timing circuits, Brake specific fuel consumption; Brake thermal efficiency; Crank rocker; Curved cylinders; Experimental investigations; Ignition timing; Maximum brake torques; Performance and emissions, Brakes
Departments / MOR / COE:Research Institutes > Energy
ID Code:21900
Deposited By: Ahmad Suhairi
Deposited On:01 Aug 2018 01:13
Last Modified:07 Nov 2018 03:39

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