Experimental and economic assessment of alkaline electrolyzer for dual-fuel operation in low-displacement diesel engines
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Universidad Nacional de Colombia
2021
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| _version_ | 1876445581512015872 |
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| author | Daniel Maestre-Cambronel |
| author_facet | Daniel Maestre-Cambronel |
| contents | Experimental and economic assessment of alkaline electrolyzer for dual-fuel operation in low-displacement diesel engines Daniel Maestre-Cambronel Brando Hernández-Comas Jorge Duarte-Forero Ingeniería hydrogen diesel engine fuel consumption economic analysis Alkaline electrolyzer This investigation evaluated the integration of an alkaline electrolyzer for dual-fuel operation in an experimental test bench of a diesel engine from a techno-economic viewpoint. The characterization of the electrolyzer operation indicated that higher electrolyte (KOH) concentrations (30 - 40% w/w) improve the overall performance since less voltage is required for electrolysis, thus featuring higher efficiencies (50 - 60%) and hydrogen production (4 - 6 LPM). The economic analysis demonstrated that hydrogen cost remains competitive (4.3 - 5.6 USD/kg), and it is greatly dependent on the electrolyte concentration. Additionally, the operation of the engine with hydrogen injection at 20 LPM and a palm biodiesel blend reduced the fuel consumption rate between 10 - 31% depending on the load rate when compared to pure diesel. In contrast, dual-fuel operation generated a minor reduction in fuel conversion efficiency (< 5%), which reflects on the power output. Overall, this technology stands as a promising avenue to improve the fuel utilization ratio. 2021 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49671317008 https://www.redalyc.org/journal/496/49671317008/ https://www.redalyc.org/journal/496/49671317008/html/ https://www.redalyc.org/journal/496/49671317008/49671317008.epub https://www.redalyc.org/journal/496/49671317008/movil 10.15446/dyna.v88n219.92439 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.219 Vol.88 |
| format | Artículo científico |
| id | redalyc_49671317008 |
| institution | Redalyc |
| language | en |
| publishDate | 2021 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | Experimental and economic assessment of alkaline electrolyzer for dual-fuel operation in low-displacement diesel engines Daniel Maestre-Cambronel Ingeniería hydrogen diesel engine fuel consumption economic analysis Alkaline electrolyzer Experimental and economic assessment of alkaline electrolyzer for dual-fuel operation in low-displacement diesel engines Daniel Maestre-Cambronel Brando Hernández-Comas Jorge Duarte-Forero Ingeniería hydrogen diesel engine fuel consumption economic analysis Alkaline electrolyzer This investigation evaluated the integration of an alkaline electrolyzer for dual-fuel operation in an experimental test bench of a diesel engine from a techno-economic viewpoint. The characterization of the electrolyzer operation indicated that higher electrolyte (KOH) concentrations (30 - 40% w/w) improve the overall performance since less voltage is required for electrolysis, thus featuring higher efficiencies (50 - 60%) and hydrogen production (4 - 6 LPM). The economic analysis demonstrated that hydrogen cost remains competitive (4.3 - 5.6 USD/kg), and it is greatly dependent on the electrolyte concentration. Additionally, the operation of the engine with hydrogen injection at 20 LPM and a palm biodiesel blend reduced the fuel consumption rate between 10 - 31% depending on the load rate when compared to pure diesel. In contrast, dual-fuel operation generated a minor reduction in fuel conversion efficiency (< 5%), which reflects on the power output. Overall, this technology stands as a promising avenue to improve the fuel utilization ratio. 2021 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49671317008 https://www.redalyc.org/journal/496/49671317008/ https://www.redalyc.org/journal/496/49671317008/html/ https://www.redalyc.org/journal/496/49671317008/49671317008.epub https://www.redalyc.org/journal/496/49671317008/movil 10.15446/dyna.v88n219.92439 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.219 Vol.88 |
| title | Experimental and economic assessment of alkaline electrolyzer for dual-fuel operation in low-displacement diesel engines |
| topic | Ingeniería hydrogen diesel engine fuel consumption economic analysis Alkaline electrolyzer |
| url | https://www.redalyc.org/articulo.oa?id=49671317008 https://www.redalyc.org/journal/496/49671317008/ https://www.redalyc.org/journal/496/49671317008/html/ https://www.redalyc.org/journal/496/49671317008/49671317008.epub https://www.redalyc.org/journal/496/49671317008/movil |