Investigation and Comparison of Multi Cylinder Partially Premixed Combustion Characteristics for Diesel and Gasoline Fuels Lund Univ

Format:

Conference/Event

Author/Creator:

Lewander, Lewander, author.

Contributor:

Johansson, Bengt

Tunestal, Per

Conference Name:

SAE International Powertrains, Fuels and Lubricants Meeting (2011-08-30 : Kyoto, Japan)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2011

Summary:

Partially Premixed Combustion is a concept able to combine lowsmoke and NOx emissions with high combustion controllability andefficiency. It is of interest to be able to utilize PPC in a largeoperating region in order to meet the Euro VI emission legislationwithout relying on NOx aftertreatment.This paper investigates the differences in PPC characteristicsfor three fuels; Diesel Swedish Mk 1, Low Octane Gasoline (70Octane) and US Standard Gasoline (87 Octane). Engine operatingconditions, combustion characteristics, emissions and efficiencyare in focus.The experiments were carried out at a range of operating pointson a Volvo MD13 which is a six-cylinder heavy-duty engine. At eachoperating point three combinations of EGR level and λ-value wereevaluated. 1. High EGR/High λ, 2. High EGR/Reduced λ, and 3.Reduced EGR/High λ.Further, for all these three conditions, four combustion timingswere tested reaching from advanced combustion timing at 3 CAD ATDCto retarded combustion timing at 9 CAD ATDC. The indicated load andthe combustion timing were controlled cylinder individually by afeedback controller

Notes:

Vendor supplied data

Publisher Number:

2011-01-1811

Access Restriction:

Restricted for use by site license