EFFECTIVENESS OF SERIES AND PARALLEL TURBO COMPOUNDING ON TURBOCHARGED DIESEL ENGINE

A.E. Teo; W.J. Yahya; A. Romagnoli; S. Rajoo; A.M. Noor

doi:10.15282/jmes.8.2015.19.0141

Authors

A.E. Teo Malaysia – Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia Kuala Lumpur, Jalan Semarak, 54100 Kuala Lumpur, Malaysia
W.J. Yahya Malaysia – Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia Kuala Lumpur, Jalan Semarak, 54100 Kuala Lumpur, Malaysia
A. Romagnoli Energy Research Institute (ERI@N), Nanyang Technological University, Singapore
S. Rajoo UTM Centre for Low Carbon Transport in cooperation with Imperial College London, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
A.M. Noor UTM Centre for Low Carbon Transport in cooperation with Imperial College London, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia

DOI:

https://doi.org/10.15282/jmes.8.2015.19.0141

Keywords:

Exhaust Energy Recovery; Waste Heat Recovery; Turbo Compound; Power Turbine.

Abstract

Turbo compounding is one of the ways to recover wasted energy in the exhaust. This paper presents the effectiveness of series and parallel turbo compounding on a turbocharged diesel engine. A power turbine is coupled to the exhaust manifold, either in series or in parallel with the turbocharger, to recover waste heat energy. The effectiveness and working range of both configurations are presented in this paper. The engine in the current study is a 6 cylinder, 13 L diesel engine. Both the configurations were modeled with one dimensional simulation software. The current study found that series and parallel turbo compounding could improve average brake specific fuel consumption (BSFC) by 1.9% and 2.5%, respectively. When the power turbine is mechanically connected to the engine, it could increase the average engine power by 1.2% for the series configuration and 2.5% for the parallel configuration.

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