NOx Reduction in Diesel-Hydrogen Engines Using Different Strategies of Ammonia Injection

M. I. Lamas and C. G. Rodriguez
Additional contact information
M. I. Lamas: Nautical Sciences and Marine Engineering Department, Universidade da Coruña, 15403 Ferrol, Spain
C. G. Rodriguez: Norplan Engineering S.L., 15570 Naron, Spain

Energies, 2019, vol. 12, issue 7, 1-13

Abstract: In order to reduce NO x emissions in internal combustion engines, the present work analyzes a measurement which consists of injecting ammonia directly into the combustion chamber. A commercial compression ignition engine fueled with a hydrogen-diesel blend was studied numerically. It was verified that the flow rate shape in which the ammonia was injected, particularly rectangular, triangular, or parabolic, as well as the injection duration had an important influence on NO x reduction. A 11.4% improvement in NO x reduction, corresponding to an overall reduction of 78.2% in NO x , was found for parabolic injection shape and 1º injection duration. The effect on carbon dioxide, carbon monoxide, and hydrocarbon emissions, as well as brake-specific consumption, was negligible.

Keywords: CFD; NO x; hydrogen; ammonia; engine (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: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

Downloads: (external link)
https://www.mdpi.com/1996-1073/12/7/1255/pdf (application/pdf)
https://www.mdpi.com/1996-1073/12/7/1255/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:12:y:2019:i:7:p:1255-:d:219063

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().