Effects of EGR rate on performance and emissions of a diesel power generator fueled by B7
De Serio, D. and de Oliveira, Alex and Sodre, Jose Ricardo (2017) Effects of EGR rate on performance and emissions of a diesel power generator fueled by B7. Journal of the Brazilian Society of Mechanical Sciences and Engineering, 39 (6). pp. 1919-1927. ISSN 1678-5878
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Abstract
This paper analyses the impacts of the application of an exhaust gas recirculation (EGR) system on the performance and emissions of a stationary, direct-injection diesel engine operating with diesel oil containing 7% biodiesel (B7). Experiments were carried out in a 49-kW diesel power generator with the adapted EGR system, and engine performance and emissions were evaluated for different load and EGR settings. The results were compared with the engine operating with its original configuration without the EGR system, and revealed a reduction of peak cylinder pressure
and fuel conversion efficiency, mainly at high engine loads. The use of EGR caused opposite effects on carbon dioxide (CO2), carbon monoxide (CO) and total hydrocarbons (THC) emissions, depending on load and EGR rate,
showing an increase in most situations. The application of EGR consistently reduced oxides of nitrogen (NOX) emissions, reaching a maximum reduction close to 30%. In general, the use of EGR increased CO2, CO and THC emissions at high loads. The use of 7.5% EGR was found to be at an
adequate rate to simultaneously reduce CO, THC and NOX emissions at low and moderate loads, without major penalties on CO2 emissions and engine performance.
| Item Type: | Article | ||||||
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| Additional Information: | The final publication is available at link.springer.com via http://dx.doi.org/10.1007/s40430-017-0777-x | ||||||
| Identification Number: | https://doi.org/10.1007/s40430-017-0777-x | ||||||
| Dates: |
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| Uncontrolled Keywords: | Diesel engine · Exhaust gas recirculation · Emissions · Fuel conversion efficiency · Power generation | ||||||
| Subjects: | CAH10 - engineering and technology > CAH10-01 - engineering > CAH10-01-01 - engineering (non-specific) CAH10 - engineering and technology > CAH10-01 - engineering > CAH10-01-09 - chemical, process and energy engineering |
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| Divisions: | Faculty of Computing, Engineering and the Built Environment > College of Engineering | ||||||
| Depositing User: | Ian Mcdonald | ||||||
| Date Deposited: | 08 Jun 2017 08:48 | ||||||
| Last Modified: | 20 Jun 2024 11:50 | ||||||
| URI: | https://www.open-access.bcu.ac.uk/id/eprint/4586 |
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