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Analysis of institutional authors

Bermudez, VAuthorRuiz, SAuthorSanchis, EjCorresponding AuthorConde, BAuthor

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October 28, 2024
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Assessment of exhaust raw emissions and aftertreatment performance in a retrofitted heavy duty-spark ignition engine operating with liquefied petroleum gas

Publicated to: JOURNAL OF CLEANER PRODUCTION. 434 140139- - 2024-01-01 434(), DOI: 10.1016/j.jclepro.2023.140139

Authors:

Bermúdez, Vicente; Ruiz-Rosales, Santiago; Sanchis, Enrique José; Conde-Pabón, Brayan Yessid
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Affiliations

Univ Politecn Valencia, CMT Clean Mobil & Thermofluids, Camino Vera S-N - Author

Abstract

This study investigates the effects of varying Liquefied Petroleum Gas compositions on pollutant emissions and three-way catalyst performance in retrofitted heavy-duty spark-ignition engines. It focuses on fuels with varying propane and butane ratios, providing new insights into the influence of the composition of Liquefied Petroleum Gas on catalyst activity and tailpipe emissions. Representative conditions from the world Harmonized Transient Cycle were selected to comprehensively assess engine emissions and catalyst performance. Experiments under constant and variable lambda conditions tested the catalyst's response concerning raw emissions, exhaust temperature, and space velocity, all variables affected by engine operation. Key findings indicate that catalyst performance is not significantly affected by Liquefied Petroleum Gas composition. Under constant lambda conditions, the catalyst achieved high conversion efficiency of carbon monoxide, unburned hydrocarbons, and nitrogen oxides, especially under rich conditions (lambda = 0.990). However, rich conditions can lead to elevated ammonia levels, although nitrous oxide generation remains low in all circumstances. Implementing lambda pulse strategies reduced ammonia formation to around 25 mg/kWh, ensuring high catalyst conversion efficiency for all pollutant species after optimizing the amplitude and frequency of the pulses to establish the balance of reducing-oxidizing species and oxygen storage for each operation mode. Crucially, Liquefied Petroleum Gas composition was determined to be non-critical for the catalyst in these engines, promoting the use of this fuel in retrofitted engines and promoting for a shift towards cleaner transportation.
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Keywords

After-treatmentAftertreatmentAmmoniaBehaviorCarbon monoxideCatalyst activityCatalyst performanceConditionConversion efficiencyDieselFuelsGas compositionsGas emissionsGasolineHeavy dutyHeavy-duty spark-ignition engineLiquefied petroleum gasLpgNitrogen oxidesOxidationParticulate-emissionsPollutant emissionsPollutants emissionsRetrofittingSpark-ignition engineStrategiesThree way catalystsThree-way catalyst]+ catalyst

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal JOURNAL OF CLEANER PRODUCTION due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2024 there are still no calculated indicators, but in 2023, it was in position 23/376, thus managing to position itself as a Q1 (Primer Cuartil), in the category Environmental Sciences. Notably, the journal is positioned above the 90th percentile.

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2026-04-03:

  • WoS: 3
  • Scopus: 4
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Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2026-04-03:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 14.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 14 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 2.
  • The number of mentions on the social network X (formerly Twitter): 2 (Altmetric).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
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Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Bermúdez Tamarit, Vicente Remigio) and Last Author (Conde Pabón, Brayan Yessid).

the author responsible for correspondence tasks has been Sanchis Pacheco, Enrique José.

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Awards linked to the item

This research has been supported by Grant PID 2020-114289RB-I00 funded by the Spanish Ministerio de Ciencia e Innovacion, Agencia Estatal de Investigacion (MCIN/AEI/10.13039/5011000 11033) .
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