Ammonia Combustion in a Spark-Ignition Engine Supported with Dimethyl Ether

Wojciech Tutak (), Michał Pyrc, Michał Gruca and Arkadiusz Jamrozik
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Wojciech Tutak: Department of Thermal Machinery, Czestochowa University of Technology, 42-201 Czestochowa, Poland
Michał Pyrc: Department of Thermal Machinery, Czestochowa University of Technology, 42-201 Czestochowa, Poland
Michał Gruca: Department of Thermal Machinery, Czestochowa University of Technology, 42-201 Czestochowa, Poland
Arkadiusz Jamrozik: Department of Thermal Machinery, Czestochowa University of Technology, 42-201 Czestochowa, Poland

Energies, 2023, vol. 16, issue 21, 1-18

Abstract: This paper presents the results of experimental tests with a spark-ignition engine powered using ammonia and DME (dimethyl ether). The tests were carried out on a CFR (cooperative fuel research) engine with a compression ratio of 10 and a rotational speed of 600 rpm. DME was used as a fuel to facilitate the initiation and then accelerate the combustion in the SI (spark-ignition) engine. It turned out that only about 10% of the energy share of DME ensures the correct combustion process. DME has a positive effect on the combustion stages, reduces the ignition delay time, and shortens the combustion duration. Thanks to this, for 18% of the energy share of NH 3 , the highest engine efficiency (29.8%), the highest value of the average indicated pressure IMEP (712 kPa), and the minimum value of specific energy consumption (12.1 MJ/kWh) were obtained. Even the smallest DME content ensured the high repeatability of IMEP, below the permissible limit of 5%.

Keywords: ammonia; combustion; DME; combustion stages (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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