RT info:eu-repo/semantics/article
T1 Influence of environmental changes due to altitude on performance, fuel consumption and emissions of a naturally aspirated diesel engine
A1 Ceballos Marcillo, John Jairo
A1 Melgar Bachiller, Andrés
A1 Tinaut Fluixá, Francisco Vicente
K1 Engines
K1 Motores
K1 Motores de combustión interna
K1 Altitude, Influence of
K1 Environment
K1 Air - Pollution
K1 Aire - Contaminación
K1 Climatic changes
K1 2509.02 Contaminación Atmosférica
K1 3317.04 Motores Diesel
AB The present study shows the effects of environmental conditions (atmospheric temperature, pressure and relative humidity) due to altitude changes on performance, fuel consumption and emissions in a naturally aspirated diesel engine. Due to changes in altitude, the atmospheric conditions are altered, mainly the air density, associated to hydrostatic pressure, temperature profile and humidity and relative nitrogen/oxygen ratio, thus modifying the engine intake conditions. The study considers changes in altitude from sea level to 2500 m above sea level, which are representative of the orographic conditions in Ecuador. As a main part of this research, a parametric study of variation of atmospheric temperature, pressure and relative humidity is carried out in AVL BOOST™, showing the effects on mean effective pressure, fuel consumption and specific pollutant emissions (CO2, NOx, CO and soot). The study considers effects at regional level (change from an altitude to another) and local level (changes in the atmospheric conditions due to local anticyclone or storm, temperature and humidity). The quantitative effects are expressed in the form of sensitivity coefficients, e.g., relative change in an engine output variable due to the change in atmospheric pressure, temperature or humidity. In addition, several global correlations have been obtained to provide analytical expressions to summarize all results obtained, showing the separate effect of pressure and temperature on each engine performance variable.
PB MDPI
SN 1996-1073
YR 2021
FD 2021
LK https://uvadoc.uva.es/handle/10324/59606
UL https://uvadoc.uva.es/handle/10324/59606
LA eng
NO Energies, 2021, Vol. 14, Nº. 17, 5346
NO Producción Científica
DS UVaDOC
RD 08-ago-2024