Study of Lean Burn Gas Engines using Pilot Fuel for Ignition Source Tokyo Gas CO., Limited

Format:

Conference/Event

Author/Creator:

Nakagawa, Kenji, author.

Conference Name:

International Fall Fuels & Lubricants Meeting & Exposition (1998-10-19 : San Francisco, California, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1998

Summary:

Lean burn gas engines are expected to reduce NOx emission while improving engine performances such as output and thermal efficiency. Recently, an ignition method using a small quantity of diesel fuel (pilot fuel) as an ignition source for lean-burn gas engines has introduced further improvement of their performance. Generally, this method has been used for pre-chamber engines because it could not successfully lead to reduce NOx and Particulate emissions when adopted for open-chamber engines. However, the possibility of improvement of performances of open-chamber engines with this ignition method has also been expected(1). An experimental study was conducted to investigate the performance of an open-chamber gas engine with pilot fuel for ignition source. Experiments were conducted by using a single cylinder gas engine equipped with a common-rail injection system. Main gas fuel is supplied to the engine cylinder, and then a small quantity of diesel fuel (approximately 0.41 % of total fuel energy input) was injected into the main chamber for ignition. This open-chamber gas engine has demonstrated superior performance, such as, a shaft-end thermal efficiency of 39.1 % with NOx level of 1.20 g/kW-h and 36.7 % with 0.40 g/kW-h, while maintaining COVimep within 2 %, which equals those of conventional spark ignited pre-chamber lean burn gas engines

Notes:

Vendor supplied data

Publisher Number:

982480

Access Restriction:

Restricted for use by site license