Browse Publications Technical Papers 2004-01-1977
2004-06-08

Premixed Compression Ignition of Formaldehyde-Doped Lean Butane/Air Mixtures in a Wide Range of Temperature 2004-01-1977

Formaldehyde artificially added into hydrocarbon/air mixtures is efficacious as an ignition control medium for the piston engines. The vapor added into the mixtures gives the premixed compression-ignition (HCCI) engine a stable ignition timing. It allows us to get the MBT controllable by the amount of formaldehyde to be added. The added formaldehyde could be a sole controlling factor to the ignition timing. Depending on the temperature to which mixtures are compressed, the effect of formaldehyde adulteration is either suppressing or promoting. The effect of formaldehyde addition is suppressing on the ignition events belonging originally to the cool-flame dominant ignition. In the preflame induction period of cool-flame dominant ignition the added formaldehyde is superfluous to the cool-flame generating processes. As contrasted with this cool-flame-rich ignition, the formaldehyde effect is promoting on the ignition events belonging the blue-flame dominant regime, where preflame reactions are under the poor cool-flame generating conditions. The efficacy of formaldehyde has been confirmed as an ignition control medium on the piston-compression ignition of hydrocarbon/air mixtures.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

A Study of the Combustion Completion on the 2-Stroke HCCI Engine with n-Butane/air Mixture - Investigation of the Composition and the Exhaust Mechanism of the Exhaust Gas -

2004-01-1978

View Details

TECHNICAL PAPER

A Chemical Mechanistic Analysis on Compression Ignition Process of Straight Chain Alkanes

2004-01-1912

View Details

TECHNICAL PAPER

Combustion in a Two-stage Injection PCCI Engine With Lower Distillation-temperature Fuels

2004-01-1914

View Details

X