Cycle-to-Cycle Transient Characteristics of Exhaust Gas Emissions from a Diesel Engine with Different Increasing and Decreasing Load Patterns Hokkaido Univ

Format:

Conference/Event

Author/Creator:

Miyamoto, Noboru, author.

Conference Name:

International Congress & Exposition (1997-02-24 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1997

Summary:

Cycle-to-cycle changes in diesel exhaust gas emissions were investigated under two transient operation patterns: One, "an interval step decreasing and increasing load", where the fuel amount is rapidly decreased from high to low loads, and after an interval, Δtint the fuel amount is abruptly returned to the initial level. The other is "a ramp increasing load", where the fuel amount is increased gradually. Except just after the step increase in fuel amounts, the THC emissions were almost completely determined by the piston wall temperature and fuel amount. However, the THC concentrations immediately after the step increase in fuel amounts were much higher than the value of the corresponding steady state operation with the same piston wall temperature. This overshoot concentration, ΔTHC, was almost constant at different intervals, Δtint and it can be suppressed by ramp increased loading. The other emission components were mainly determined by the fuel amount while NOx increased slightly with increases in piston wall temperature

Notes:

Vendor supplied data

Publisher Number:

970750

Access Restriction:

Restricted for use by site license