Análisis termodinámico de los parámetros indicados de un motor de ciclo Otto aspiración natural con sistema de inyección electrónica en función de la altitud sobre el nivel del mar

Abstract

In this document it is shown a methodology for determination of power, work and indicated mean pressure of an atmospheric Otto engine, respect to altitude above sea level by means of a thermodynamic analysis, using for this purpose the information provided by sensors that equipped the electronic fuel injection system and air – fuel ratio determined by lambda factor (λ), which is obtained with a gas analyzer. Indicated and operating parameters that have directly influence on engine performance have been determined, and in the same way is established a test protocol to obtain the variables for the calculation of these indicated parameters. As a result of the research is obtained a correlation between indicated parameters obtained in static test and altitude increasing, showing an average loss of zero point five percent for each hundred meters of high.