Aplicación de un modelo matemático para el análisis del comportamiento del ciclo otto MCI bajo manipulación de parámetros ambientales

Rodrigo Passo; Jeyson Patricio Egas García; Joffre Alexander Arguello Guerrero; Jhon Gregorio García Valencia; Edwuin Paúl Lisintuña Toapanta

doi:10.37431/conectividad.v5i1.111

Authors

Rodrigo Passo Instituto Superior Tecnológico Ciudad de Valencia https://orcid.org/0000-0002-0979-5335
Jeyson Patricio Egas García Universidad Técnica Estatal de Quevedo https://orcid.org/0000-0002-0064-8638
Joffre Alexander Arguello Guerrero Instituto Superior Tecnológico Ciudad de Valencia https://orcid.org/0000-0001-8205-8801
Jhon Gregorio García Valencia Instituto Superior Tecnológico Ciudad de Valencia https://orcid.org/0000-0002-8477-4593
Edwuin Paúl Lisintuña Toapanta Instituto Superior Tecnológico Ciudad de Valencia https://orcid.org/0009-0006-0556-7454

DOI:

https://doi.org/10.37431/conectividad.v5i1.111

Keywords:

Articles, Cycles, Research, Engines, Temperature, Pressure

Abstract

The objective of bibliographic and experimental research on the behavior of the thermodynamic cycle in internal combustion engines is to verify changes in behavior, using mathematical solutions to analyze changes in values in terms of pressure, volume and rotation of the crankshaft. The power output of a four-stroke gasoline engine with compression in the engine is proportional to an exponent of 1.34 of the polytropic coefficient and the compression ratio. The effects of pressure and temperature variations on the performance of internal combustion engines that operate at different heights above sea level, which is why it was studied taking advantage of the fact that our country Ecuador has many geographical changes, since quantifying the effects of temperature and pressure is vital to establishing the ability to operate spark ignition engines at altitudes much higher than those for which they were designed. The effects of atmospheric conditions showed that temperature dominates pressure and resulted in a power loss and compression drop of around 1.5% for every 100 m increase in altitude. Engine efficiency dropped approximately 1.54 percentage points for every 300 m increase in altitude. The research was captured in Excel for the development of the mathematical model, in which the pressure vs volume diagram graphs, pressure vs angle of rotation of the crankshaft and the dispersion of forces acting on the piston, connecting rod and crankshaft were obtained.

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