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Información tecnológica

versión On-line ISSN 0718-0764

Resumen

LAPUERTA, Magín; ARMAS, Octavio; AGUDELO, John R  y  SANCHEZ, Carlos A. Study of the Altitude Effect on Internal Combustion Engine Operation. Part 1: Performance. Inf. tecnol. [online]. 2006, vol.17, n.5, pp.21-30. ISSN 0718-0764.  http://dx.doi.org/10.4067/S0718-07642006000500005.

The present study  shows the effect of altitude on the performance of  both naturally aspirated and turbocharged internal combustion engines without corrective systems, as a function of  pressure in the environment. Altitude above sea level has a notable effect on the density of air and its composition. Given that internal combustion engines have volumetric-based fuel systems, altitude can modify their thermodynamic cycle of operation, and consequently their performance, local combustion conditions, and formation of pollutants. An expression has been obtained which allows calculation of  the increase of the compression ratio of the turbogroup required to avoid  power loss with increase in altitude.

Palabras clave : combustion engines; altitude effects; engine performance; power.

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