Abstract
This research applies exergy and exergoeconomic analyses to a turbocharged ethanol-fuelled engine enriched with hydrogen to operate in lean mixture conditions. Utilizing simulation data, the study examines the impacts of up to 6% of hydrogen fraction in the fuel for engine operation in the lean range from stoichiometric to fuel/air mixture equivalence ratio 0.7 are investigated. The exergy analysis revealed that hydrogen enrichment in lean operation can improve global exergy efficiency by nearly 30%. This improvement in efficiency was accompanied by significant reductions in exergy destruction and heat-based exergy transfer. The exergoeconomic evaluation indicated that hydrogen energy density and lean operation can reduce the fuel cost rate by up to 23%. The best operational scenario produced 29% decrease in specific exergoeconomic cost of electricity generation and 31% reduction in total losses.
| Original language | English |
|---|---|
| Pages (from-to) | 387-394 |
| Number of pages | 8 |
| Journal | International Journal of Hydrogen Energy |
| Volume | 61 |
| Early online date | 1 Mar 2024 |
| DOIs | |
| Publication status | Published - 3 Apr 2024 |
Bibliographical note
Copyright © 2024, The Authors. Published by Elsevier Ltd on behalf of Hydrogen Energy Publications LLC. This is an open access article under the CC BY license (https://creativecommons.org/licenses/by/4.0/).Keywords
- Hydrogen energy
- Ethanol fuel
- Internal combustion engines
- Exergoeconomic analysis
- Energy