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- Title
The investigation of environmental behaviors by energy and exergy analyses using gasoline/ethanol fuel blends.
- Authors
Doğan, Battal; Erol, Derviş; Üstün, Süleyman
- Abstract
This study aims to evaluate the use of ethanol/gasoline fuel blends in a single-cylinder spark-ignition engine with energy, exergy, exergoeconomic and exergoenvironmental analysis. Test fuels (G100, E10, E20, E30, E40, E50, and E100) prepared by adding ethanol obtained from agricultural products to gasoline at different ratios were utilized in experimental studies. Thermodynamic analyses were carried out using the performance and emission data obtained from the engine tests. Thermal efficiency and exergy efficiencies were computed with energy and exergy analyses. The highest efficiencies were acquired at 2500 rpm for all fuels. The exergy efficiency of G100, E20 and E40 fuels at this engine speed is 17.13%, 15.81% and 14.62%, respectively. Furthermore, cost of engine shaft work in exergoeconomic analysis and environmental cost of shaft work in exergoenvironmental analysis were found in study. When an engine speed was 2500 rpm in E50 fuel, the cost of shaft work was 74.21 $ MJ−1, and the environmental cost of shaft work was 59.07 $ GJ−1. Moreover, exergoeconomic factor and exergoenvironmental factor values of fuel blends were computed. It was revealed that increased ethanol ratio in fuel blends increased economic and environmental costs. In terms of economy and environment, it can be considered appropriate that the ethanol ratio in fuel blends is between 30 and 40%. If ethanol is used higher than these rates, costs increase and fuels become uneconomical.
- Subjects
ETHANOL as fuel; ETHANOL; ISOBUTANOL; GASOLINE; EXERGY; ENVIRONMENTAL economics; THERMAL efficiency; ENGINE testing
- Publication
Journal of Thermal Analysis & Calorimetry, 2023, Vol 148, Issue 14, p6855
- ISSN
1388-6150
- Publication type
Article
- DOI
10.1007/s10973-023-12186-1