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19. Effects of hybrid nanoparticle additives in n-butanol/waste plastic oil/diesel blends on combustion, particulate and gaseous emissions from diesel engine evaluated with entropy-weighted PROMETHEE II and TOPSIS: Environmental and health risks of plastic waste

Author

Yusuf, Abdulfatah Abdu, Dankwa Ampah, Jeffrey, Soudagar, Manzoore Elahi M., Veza, Ibham, Kingsley, Ukoba, Afrane, Sandylove, Jin, Chao, Liu, Haifeng, Elfasakhany, Ashraf, and Buyondo, Kasumba A.

Published
2022
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22. Race towards net zero emissions (NZE) by 2050: reviewing a decade of research on hydrogen-fuelled internal combustion engines (ICE).

Author

Ampah, Jeffrey Dankwa, Jin, Chao, Afrane, Sandylove, Yusuf, Abdulfatah Abdu, Liu, Haifeng, and Yao, Mingfa

Subjects
EXHAUST gas recirculation, DIESEL fuels, DUAL-fuel engines, INTERNAL combustion engines, LEAN combustion
Abstract

Hydrogen fuel offers promising decarbonization pathways for hard-to-electrify transport sectors such as long-haul trucking, international maritime, and aviation. The internal combustion engine (ICE) is and will continue to be important in the transition to net zero emissions (NZE), especially in the transport sector. In this review, the research trend, hotspots, and evolutionary nuances of hydrogen-fuelled ICEs have been investigated. Our analysis reveals that while earlier research primarily focused on the performance and emission characteristics of hydrogen-fuelled ICEs, recent studies are increasingly paying more attention to combustion and emission control strategies. NOx emissions have received a lot of attention, as it is the most important pollutant from hydrogen engines. Several techniques, namely exhaust gas recirculation (EGR), water injection, and lean combustion, have been predominantly adopted and studied for controlling NOx emissions. Another major research area in the field has centered on combustion anomalies such as backfiring and knocking, which are key setbacks to the hydrogen-fuelled ICE. Owing to its ability to produce fewer emissions and greater performance than diesel-only operation, hydrogen in diesel engines as dual fuel has also become a major research hotspot in the field within the last decade. Our analysis also showed that there is a strong interest in this field where researchers are focusing on the use of hydrogen with other alternative fuels such as methane, biogas, biodiesel, ammonia, and methanol for optimal operation of the ICE. Finally, we provide some critical challenges and potential solutions related to the use of hydrogen as an ICE fuel. It is anticipated that the results from the present work will pave the way for the continuous development of hydrogen engine research for the ongoing fight to decarbonize the transport sector. [ABSTRACT FROM AUTHOR]

Published
2024
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23. Deployment expectations of multi-gigatonne scale carbon removal could have adverse impacts on Asia's energy-water-land nexus.

Author

Ampah, Jeffrey Dankwa, Jin, Chao, Liu, Haifeng, Yao, Mingfa, Afrane, Sandylove, Adun, Humphrey, Fuhrman, Jay, Ho, David T., and McJeon, Haewon

Subjects
FOSSIL fuel industries, GREENHOUSE gas mitigation, CARBON, CARBON dioxide, ENERGY crops
Abstract

Existing studies indicate that future global carbon dioxide (CO2) removal (CDR) efforts could largely be concentrated in Asia. However, there is limited understanding of how individual Asian countries and regions will respond to varying and uncertain scales of future CDR concerning their energy-land-water system. We address this gap by modeling various levels of CDR-reliant pathways under climate change ambitions in Asia. We find that high CDR reliance leads to residual fossil fuel and industry emissions of about 8 Gigatonnes CO2yr−1 (GtCO2yr−1) by 2050, compared to less than 1 GtCO2yr−1 under moderate-to-low CDR reliance. Moreover, expectations of multi-gigatonne CDR could delay the achievement of domestic net zero CO2 emissions for several Asian countries and regions, and lead to higher land allocation and fertilizer demand for bioenergy crop cultivation. Here, we show that Asian countries and regions should prioritize emission reduction strategies while capitalizing on the advantages of carbon removal when it is most viable. Global future carbon removal efforts could largely be concentrated in Asia. Here, this study shows that multi-gigatonnes expectation of carbon removal could have adverse impact on the energy-land-water system of countries and regions within the continent. [ABSTRACT FROM AUTHOR]

Published
2024
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34. Integrated AHP-TOPSIS under a Fuzzy Environment for the Selection of Waste-To-Energy Technologies in Ghana: A Performance Analysis and Socio-Enviro-Economic Feasibility Study

Author

Afrane, Sandylove, primary, Ampah, Jeffrey Dankwa, additional, Agyekum, Ephraim Bonah, additional, Amoh, Prince Oppong, additional, Yusuf, Abdulfatah Abdu, additional, Fattah, Islam Md Rizwanul, additional, Agbozo, Ebenezer, additional, Elgamli, Elmazeg, additional, Shouran, Mokhtar, additional, Mao, Guozhu, additional, and Kamel, Salah, additional

Published
2022
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35. Progress and Recent Trends in the Application of Nanoparticles as Low Carbon Fuel Additives—A State of the Art Review

Author

Ampah, Jeffrey Dankwa, primary, Yusuf, Abdulfatah Abdu, additional, Agyekum, Ephraim Bonah, additional, Afrane, Sandylove, additional, Jin, Chao, additional, Liu, Haifeng, additional, Fattah, Islam Md Rizwanul, additional, Show, Pau Loke, additional, Shouran, Mokhtar, additional, Habil, Monier, additional, and Kamel, Salah, additional

Published
2022
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