论文信息 - Exergy recovery from the exhaust cooling in a DI diesel engine for BSFC reduction purposes

Exergy recovery from the exhaust cooling in a DI diesel engine for BSFC reduction purposes

In this experimental research, the exergy recovery from a DI Diesel engine is investigated where a turbocharged OM314 DIMLER diesel engine was tested at various engine speeds (1200, 1400, 1600, 1800 and 2000 rpm) and torques (20, 40, 60, 80 and 100 N m). For this aim, a double pipe heat exchanger with counter current flow is used in the exhaust of engine. As an important outcome, by increasing the load and engine speed, the recovered exergy increased. Furthermore, the reduction of brake specific fuel consumption (bsfc) due to the use of recovered exergy from exhaust has also been studied in the current study. The results show that by using recovered exergy, bsfc decreased approximately 10%.

[1] Weui-Bong Jeong,et al. Design of an acoustic enclosure with duct silencers for the heavy duty diesel engine generator set , 2004 .

[2] Evangelos G. Giakoumis,et al. Second-law analyses applied to internal combustion engines operation , 2006 .

[3] Guiping Lin,et al. Waste heat recovery using heat pipe heat exchanger for heating automobile using exhaust gas , 2003 .

[4] B. C. Nakra,et al. Investigations on mufflers for internal combustion engines , 1981 .

[5] P.O.A.L. Davies,et al. Performance of exhaust silencer components , 1971 .

[6] Jorma Heikkinen,et al. Temperature optimisation of a diesel engine using exhaust gas heat recovery and thermal energy storage (diesel engine with thermal energy storage) , 2010 .

[7] R. Velraj,et al. Experimental investigation on heat recovery from diesel engine exhaust using finned shell and tube heat exchanger and thermal storage system , 2011 .

[8] Marc A. Rosen,et al. Clarifying thermodynamic efficiencies and losses via exergy , 2002 .

[9] Choongsik Bae,et al. Design of a Heat Exchanger to Reduce the Exhaust Temperature in a Spark-Ignition Engine , 2008 .

[10] Malcolm J. Crocker,et al. Studies of acoustical performance of a multi-cylinder engine exhaust muffler system , 1983 .

[11] R. Kirby,et al. A point collocation approach to modelling large dissipative silencers , 2005 .

[12] E. J. Wonnacott. Lower exhaust noise from better silencer design techniques , 1974 .