Analysis of the Driving Altitude and Ambient Temperature Impact on the Conversion Efficiency of Oxidation Catalysts Article Swipe
José Ramón Serrano
,
Pedro Piqueras
,
Enrique José Sanchís
,
Bárbara Diesel
·
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.3390/app11031283
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.3390/app11031283
Worldwide emission standards are extending their requirements to cover engine operation under extreme ambient conditions and fill the gap between the type-approval and real driving conditions. The new ambient boundaries affect the engine performance and raw emissions as well as the efficiency of the exhaust aftertreatment systems. This study evaluates the impact of high altitude and low ambient temperature on the light-off temperature and conversion efficiency of an oxidation catalyst. The results are compared in a common range of exhaust mass flow and temperature with the baseline sea-level operation at 20 °C. A reduction of CO and HC conversion efficiencies was found at 2500 m and −7 °C, with a relevant increase of the light-off temperature for both of the pollutants. The analysis of the experimental data was complemented with the use of a catalyst model to identify the causes leading to the deterioration of the CO and HC light-off. The use of the model allowed for identifying, for the same exhaust mass flow and temperature, the contributions to the variation of conversion efficiency caused by the change in engine-out emissions and tailpipe pressure, which are, in turn, manifested in the variation of the reactants partial pressure and dwell time as governing parameters.
Related Topics
Concepts
Environmental science
Dwell time
Engine efficiency
Exhaust gas
Altitude (triangle)
Materials science
Pollutant
Secondary air injection
Automotive engineering
Waste management
Chemistry
Internal combustion engine
Engineering
Petrol engine
Geometry
Clinical psychology
Organic chemistry
Medicine
Mathematics
Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3390/app11031283
- https://www.mdpi.com/2076-3417/11/3/1283/pdf?version=1612335805
- OA Status
- gold
- Cited By
- 11
- References
- 47
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W3127102032
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W3127102032Canonical identifier for this work in OpenAlex
- DOI
-
https://doi.org/10.3390/app11031283Digital Object Identifier
- Title
-
Analysis of the Driving Altitude and Ambient Temperature Impact on the Conversion Efficiency of Oxidation CatalystsWork title
- Type
-
articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2021Year of publication
- Publication date
-
2021-01-30Full publication date if available
- Authors
-
José Ramón Serrano, Pedro Piqueras, Enrique José Sanchís, Bárbara DieselList of authors in order
- Landing page
-
https://doi.org/10.3390/app11031283Publisher landing page
- PDF URL
-
https://www.mdpi.com/2076-3417/11/3/1283/pdf?version=1612335805Direct link to full text PDF
- Open access
-
YesWhether a free full text is available
- OA status
-
goldOpen access status per OpenAlex
- OA URL
-
https://www.mdpi.com/2076-3417/11/3/1283/pdf?version=1612335805Direct OA link when available
- Concepts
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Environmental science, Dwell time, Engine efficiency, Exhaust gas, Altitude (triangle), Materials science, Pollutant, Secondary air injection, Automotive engineering, Waste management, Chemistry, Internal combustion engine, Engineering, Petrol engine, Geometry, Clinical psychology, Organic chemistry, Medicine, MathematicsTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
11Total citation count in OpenAlex
- Citations by year (recent)
-
2025: 2, 2024: 3, 2022: 5, 2021: 1Per-year citation counts (last 5 years)
- References (count)
-
47Number of works referenced by this work
- Related works (count)
-
10Other works algorithmically related by OpenAlex
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