A comparative study on gasoline, LPG and biogas affecting the dynamic responses of SI engine

Abstract

Nowadays biogas is used in agriculture and industrial sectors especially in electric production because its production cost lower is than other fuels such as gasoline and LPG. However, biogas from the waste of swine farm has only 50 - 70 % of methane that decreases the efficiency and power of SI engine. This paper presents a comparative study of gasoline LPG and biogas affecting the dynamic responses of SI engine. The system identification of SI engine uses mean value model with parameter estimation. A mean value model is a mathematical SI engine model which is the intermediate between large cyclic simulation models and simplistic transfer function models. The simulation and experimental results are found useful in the development of control system for biogas engine-generator system and LPG plus biogas engine-generator system. © 2014 Springer-Verlag Berlin Heidelberg.