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Comparative performance and emission tests of a heavy duty off-highway diesel engine working in two different conditions: route test and bench test
Análisis comparativo del desempeño y emisiones de un motor diesel de gran capacidad operando bajo dos escenarios: trabajo en ruta activa y trabajo en banco
Keywords:
mining truck, diesel exhaust emissions, diesel engine performance, route test, dynamometer test (en)revoluciones académicas, investigación, artículos científicos, revisión citas vs. bibliografía, software (es)
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Several tests were carried out on a 1,640 kW (2,200 hp) diesel engine operating in two different sets of conditions: a bench test and route test (when the engine was located on a mining truck). The engine was mounted on a dynamometer for the first set of conditions. The parameters measured were break torque, cylinder and air inlet temperatures, exhaust gas temperature and both fuel consumption and airflow. Gas emissions were also recorded. The engine operated during the first phase of the study according to a test protocol allowing real work conditions to be simulated during a typical cycle present on the operation route. Afterwards, the mining truck was instrumented for the second set of working conditions and the corresponding monitoring work was done while the truck was working on the route assigned by the trucks operator. A comparative analysis was then made of the results obtained in the two sets of working conditions. This analysis led to observing that the results obtained in the two tests had a very similar pattern and thus led to validating the results obtained in the bench test.
La primera revolución académica, llevada a cabo desde finales del siglo XIX en países desarrollados, hace de la investigación una función universitaria adicional a la tradicional tarea de enseñanza. Una segunda revolución académica intenta transformar la universidad en una empresa de enseñanza, investigación y desarrollo socioeconómico. El artículo científico llega a ser un excelente medio práctico para el "movimiento" de nuevo conocimiento entre la universidad y el entorno socioeconómico. Este trabajo tiene dos propósitos. Primero, presentar algunas consideraciones generales sobre la investigación y el artículo científico. El segundo, el de dar a conocer una herramienta computacional que sirve para apoyar el proceso de revisión de citaciones bibliográficas en un artículo científico. Este paso es usualmente realizado a mano y requiere experiencia. El software facilita leer dos archivos de texto, uno con el contenido del artículo y otro con las referencias bibliográficas, y luego generar un reporte que permite identificar los autores citados en el texto pero que no están referenciados en la bibliografía, y determinar los autores citados en la bibliografía mas no citados en el texto del artículo. El software también permite a los investigadores y a los coordinadores de revistas detectar errores de referenciamiento entre citaciones en el texto y referencias bibliográficas. Los pasos para desarrollar el software fueron: análisis, diseño, implementación y uso. Para el análisis fue importante la revisión de la literatura sobre elaboración de citaciones en documentos científicos.
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Copyright (c) 2010 Juan Miguel Mantilla González, Jorge A. Roncancio G., Helmer R. Acevedo G
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