Experimental evaluation of low-displacement compression ignited engines operating with hydroxy gas as a supplementary gaseous fuel
A large proportion of annual production of worldwide greenhouses gases results from the use of internal combustion engines. This experimental work evaluates the influence of dual-fuel operation on the overall emissions of a low-displacement compression-ignition engine based on operational conditions...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-11-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S240584402202833X |
| _version_ | 1797988016406396928 |
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| author | Natalia Duarte Donovan Arango Geanette Polanco Guillermo Valencia Jorge Duarte-Forero |
| author_facet | Natalia Duarte Donovan Arango Geanette Polanco Guillermo Valencia Jorge Duarte-Forero |
| author_sort | Natalia Duarte |
| collection | DOAJ |
| description | A large proportion of annual production of worldwide greenhouses gases results from the use of internal combustion engines. This experimental work evaluates the influence of dual-fuel operation on the overall emissions of a low-displacement compression-ignition engine based on operational conditions such as torque, rotational speed, and load. Hydroxy gas is used as a supplementary gaseous fuel while using pure diespel or palm oil biodiesel as baseline fuels. The CO, CO2, NOx, and HC emissions levels were carefully characterized through experimental measurements and statistical analysis. The influence of hydroxy enrichment was also examined on the engine's fuel consumption. The study incorporates an in-house hydroxy generator to store and supply the gas in the intake air system using an electrolyzer. The results demonstrated that the ANOVA analysis provides accurate predictions compared to experimental measurements with less than 5% relative error. The use of hydroxy reduces the SFC by up to 25%, which represents an economic advantage of dual-fuel operation, additionally it decreases CO, HC, and CO2 emissions. However, with hydroxy enrichment, NOx emissions levels escalate at medium and high loads. Overall, hydroxy enrichment demonstrates to be a robust alternative from an environmental and economic perspective. Future research will be focused on evaluating the biodiesel – hydroxy dual operation, broadening the spectrum of biodiesel concentration percentages, and selecting different raw materials for biofuel production. |
| first_indexed | 2024-04-11T07:56:04Z |
| format | Article |
| id | doaj.art-a2987e8aa9ad4b30b3c44a31e37d3ac3 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-04-11T07:56:04Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-a2987e8aa9ad4b30b3c44a31e37d3ac32022-12-22T04:35:55ZengElsevierHeliyon2405-84402022-11-01811e11545Experimental evaluation of low-displacement compression ignited engines operating with hydroxy gas as a supplementary gaseous fuelNatalia Duarte0Donovan Arango1Geanette Polanco2Guillermo Valencia3Jorge Duarte-Forero4KAI Research Unit, Department of Mechanical Engineering, Universidad del Atlántico, Carrera 30 Número 8–49, Puerto Colombia, Barranquilla, ColombiaKAI Research Unit, Department of Mechanical Engineering, Universidad del Atlántico, Carrera 30 Número 8–49, Puerto Colombia, Barranquilla, ColombiaIndustrial Technology Department, UiT, The Arctic University of Norway, Narvik, Norway; Corresponding author.KAI Research Unit, Department of Mechanical Engineering, Universidad del Atlántico, Carrera 30 Número 8–49, Puerto Colombia, Barranquilla, ColombiaKAI Research Unit, Department of Mechanical Engineering, Universidad del Atlántico, Carrera 30 Número 8–49, Puerto Colombia, Barranquilla, ColombiaA large proportion of annual production of worldwide greenhouses gases results from the use of internal combustion engines. This experimental work evaluates the influence of dual-fuel operation on the overall emissions of a low-displacement compression-ignition engine based on operational conditions such as torque, rotational speed, and load. Hydroxy gas is used as a supplementary gaseous fuel while using pure diespel or palm oil biodiesel as baseline fuels. The CO, CO2, NOx, and HC emissions levels were carefully characterized through experimental measurements and statistical analysis. The influence of hydroxy enrichment was also examined on the engine's fuel consumption. The study incorporates an in-house hydroxy generator to store and supply the gas in the intake air system using an electrolyzer. The results demonstrated that the ANOVA analysis provides accurate predictions compared to experimental measurements with less than 5% relative error. The use of hydroxy reduces the SFC by up to 25%, which represents an economic advantage of dual-fuel operation, additionally it decreases CO, HC, and CO2 emissions. However, with hydroxy enrichment, NOx emissions levels escalate at medium and high loads. Overall, hydroxy enrichment demonstrates to be a robust alternative from an environmental and economic perspective. Future research will be focused on evaluating the biodiesel – hydroxy dual operation, broadening the spectrum of biodiesel concentration percentages, and selecting different raw materials for biofuel production.http://www.sciencedirect.com/science/article/pii/S240584402202833XAlternative fuelsDiesel combustionEmissionsElectrolyzerHydroxy |
| spellingShingle | Natalia Duarte Donovan Arango Geanette Polanco Guillermo Valencia Jorge Duarte-Forero Experimental evaluation of low-displacement compression ignited engines operating with hydroxy gas as a supplementary gaseous fuel Heliyon Alternative fuels Diesel combustion Emissions Electrolyzer Hydroxy |
| title | Experimental evaluation of low-displacement compression ignited engines operating with hydroxy gas as a supplementary gaseous fuel |
| title_full | Experimental evaluation of low-displacement compression ignited engines operating with hydroxy gas as a supplementary gaseous fuel |
| title_fullStr | Experimental evaluation of low-displacement compression ignited engines operating with hydroxy gas as a supplementary gaseous fuel |
| title_full_unstemmed | Experimental evaluation of low-displacement compression ignited engines operating with hydroxy gas as a supplementary gaseous fuel |
| title_short | Experimental evaluation of low-displacement compression ignited engines operating with hydroxy gas as a supplementary gaseous fuel |
| title_sort | experimental evaluation of low displacement compression ignited engines operating with hydroxy gas as a supplementary gaseous fuel |
| topic | Alternative fuels Diesel combustion Emissions Electrolyzer Hydroxy |
| url | http://www.sciencedirect.com/science/article/pii/S240584402202833X |
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