Experimental Study on Ammonia-Methanol Combustion and Emission Characteristics in a Spark Ignition Engine Tsinghua University

Format:

Book

Conference/Event

Author/Creator:

Lin, Zhelong, author.

Contributor:

Chen, Qingchu

Liu, Shang

Qi, Yunliang

Wang, Zhi

Conference Name:

WCX SAE World Congress Experience (2024-04-16 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2024

Summary:

Ammonia and methanol are both future fuels with carbon-neutral potential. Ammonia has a high octane number, a slow flame speed, and a narrow ignition limit, while methanol has a fast flame speed with complementary combustion characteristics but is more likely to lead to pre-ignition and knock. In this paper, the combustion and emission characteristics of ammonia-methanol solution in a high compression ratio spark ignition engine are investigated. The experimental results show that the peak in-cylinder pressure and peak heat release rate of the engine when using ammonia-methanol solution are lower and the combustion phase is retarded compared with using methanol at the same spark timing conditions. Using ammonia-methanol solution in the engine resulted in a more ideal combustion phase than that of gasoline, leading to an increase in indicated thermal efficiency of more than 0.6% and a wider range of efficient operating conditions. The use of ammonia-methanol solution increases unburned NH3 emissions and THC emissions, resulting in lower thermal efficiency compared with the use of methanol. Using ammonia-methanol solution reduces CO2 emissions and increases NOx and N2O emissions, eventually resulting in similar greenhouse gases (GHG) emissions to the use of methanol, both of which are 10% lower than the use of gasoline

Notes:

Vendor supplied data

Publisher Number:

2024-01-2820

Access Restriction:

Restricted for use by site license