2-Stroke Diesel Engine for Light Aircraft: IDI vs. DI Combustion Systems Univ. of Modena and Reggio Emilia

Format:

Conference/Event

Author/Creator:

Mattarelli, Mattarelli, author.

Contributor:

Paltrinieri, Fabrizio

Perini, Federico

Rinaldini, Carlo Alberto

Wilksch, Mark

Conference Name:

SAE 2010 Powertrains Fuels & Lubricants Meeting (2010-10-25 : San Diego, California, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2010

Summary:

The paper presents a numerical study aimed at converting a commercial lightweight 2-Stroke Indirect Injection (IDI) Diesel aircraft engine to Direct Injection(DI). First, a CFD-1D model of the IDI engine was built and calibrated against experiments at the dynamometer bench. This model is the baseline for the comparison between the IDI and the DI combustion systems. The DI chamber design was supported by extensive 3D-CFD simulations, using a customized version of the KIVA-3V code. Once a satisfactory combustion system was identified, its heat release and wall transfer patterns were entered in the CFD-1D model, and a comparison between the IDI and the DI engine was performed, considering the same Air-Fuel Ratio limit. It was found that the DI combustion system yields several advantages: better take-off performance (higher power output), lower fuel consumption at cruise conditions, improved altitude performance, reduced cooling requirements. Furthermore, the injection system requirements for DI combustion can be met also by mechanical pump and injectors

Notes:

Vendor supplied data

Publisher Number:

2010-01-2147

Access Restriction:

Restricted for use by site license