Thermodynamic model of an internal combustion engine with spark ignition

• Grant number: 12/12300-6
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: January 01, 2013
• End date: October 31, 2013
• Field of knowledge: Engineering - Mechanical Engineering - Thermal Engineering
• Principal Investigator: Santiago del Rio Oliveira
• Grantee: Natalia Roberta da Silva
• Host Institution: Faculdade de Engenharia (FE). Universidade Estadual Paulista (UNESP). Campus de Bauru. Bauru , SP, Brazil

Abstract

The analysis and development of internal combustion engines with spark ignition is a topic of great scientific and technical interest. In general, studies related to this type of equipment have to analyze their energy efficiency, i.e., the conversion of chemical energy of fuel into mechanical energy. The analysis and development of these devices are complex and characterized by multidisciplinary concepts involved. A study of energy efficiency can be achieved from the point of view of the materials involved in the design of the engine, the quality and type of fuel used, the size of engine components, and the thermal interaction between the components. Regardless of the perspective used, several mathematical models can be proposed since simple models with fast analytical solutions even more complex models with numerical solutions require high computational power. The objective of this project is to develop a mathematical model of an internal combustion engine with spark-ignition based on the air-standard Otto cycle using basic concepts of thermodynamics, heat transfer, and mechanisms. This model will be dependent on the angle of rotation of the crank and is solved numerically using the finite difference method.(AU)