Studying Ignition Delay Time of Lubricant Oil Mixed with Alcohols, Water and Aromatics in IQT and CVCC King Abdullah Univ. of Science and Tech

Format:

Book

Conference/Event

Author/Creator:

Maharjan, Sumit, author.

Contributor:

Elbaz, Ayman

Mitsudharmadi PhD, Hatsari

Roberts, William

Conference Name:

WCX SAE World Congress Experience (2020-04-21 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2020

Summary:

The auto-ignition of liquid fuel and lubricant oil droplets is considered as one of the possible sources of pre-ignition. Researchers are constantly finding new ways to form advanced lubricant oil by changing its composition and varying different oil additives to prevent the occurrence of this event. In this study, three sets of mixtures are prepared. First set of mixtures was prepared by adding different alcohols namely ethanol, methanol and propanol, to the commercial lubricant oil (SAE 15W-40) in ratio of 1 % - 5 % by volume to investigate the mixtures' ignition delay time (IDT) following standard ASTM D6890 procedure in an Ignition Quality Tester (IQT) and a custom built 4 liters constant volume combustion chamber (CVCC). For the CVCC, experiments were carried out in ambient air environment at 300 °C with varying pressure ranging from 4 bar - 22 bar at 6 bar interval pressures. Second set of mixtures were prepared by mixing SAE 15W-40 with aforementioned alcohols (1 % volume) and H2O (1 % volume). Lastly, third set of mixtures were prepared by adding SAE 15W-40 in toluene (1 % - 5% by volume). The physical properties are also measured for all prepared mixtures.IDT of lubricant oil was considered as the base IDT, which was compared to those of other mixtures. Addition of alcohols and water in lubricant oil showed significant increase in IDT compared to other mixtures. However, addition of toluene resulted in decrease in IDT. Among the alcohols, methanol addition showed highest IDT compared to ethanol and propanol. However, alcohols had to be added >4 % by volume to show a significant increase in IDT compared to pure lubricant oil. Both the results obtained from CVCC and IQT showed good agreement

Notes:

Vendor supplied data

Publisher Number:

2020-01-1422

Access Restriction:

Restricted for use by site license