Potential of use of neat renewable hydrotreated vegetable oil fuel in agricultural machinery: Performance and regulated emissions under quasi steady and transient load increase
The performance and regulated emissions from a Stage V tractor engine using a neat hydrotreated vegetable oil (HVO) and a typical agricultural diesel fuel were evaluated. Tests were carried under different quasi-steady state modes and with a continuous load variation test reaching maximum torque (fu...
| Autores: | , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Fundación Dialnet. Universidad de La Rioja |
| Repositorio: | RUIdeRA. Repositorio Institucional de la UCLM |
| OAI Identifier: | oai:ruidera.uclm.es:10578/45532 |
| Acceso en línea: | https://doi.org/10.1016/j.fuel.2025.136313 https://hdl.handle.net/10578/45532 |
| Access Level: | acceso abierto |
| Palabra clave: | Diesel fuel Full load HVO fuel Pollutant emissions Tractor |
| Sumario: | The performance and regulated emissions from a Stage V tractor engine using a neat hydrotreated vegetable oil (HVO) and a typical agricultural diesel fuel were evaluated. Tests were carried under different quasi-steady state modes and with a continuous load variation test reaching maximum torque (full load) at an engine speed of 1800 min- 1 . Results of effective engine power were similar with both fuels. CO2 emissions were proportional to mass fuel consumption, being slightly lower (around 5 %) than the HVO fuel despite its lower volumetric heating value. Similar results were observed for CO and NOx concentrations with both fuels under both, stationary modes, and for continuous variation load tests. Performance with both Diesel and HVO fuels was equivalent during increasing load under transient conditions. However, a faster response to maximum load demand was observed with the HVO such that the highest load performance test always finished earlier with HVO. The response of pollutant emissions and aftertreatment systems (ATS) control parameters, like urea dosing, was consistent with this response at the maximum load reached. Further analysis of the HVO response to transient conditions and possible engine and ATS optimization would be of interest. The other main difference associated with the use of HVO was the different particle number concentrations emitted, probably influenced by the ATS configuration according to the Stage V regulation. A deeper study of particle number should be considered for future work, including the analysis of particle chemical composition. |
|---|