Modelling and Simulation of Reciprocating Engine

Abstract

The reciprocating internal combustion engine is one of the popular engine used as a prime mover for various applications like automotive and transportation vehicles, power generation etc. There is an ever increasing demand to enhance reciprocating engines and their operations to achieve higher operational efficiency, minimize fuel consumption and also meet ever-tightening the exhaust emission limits. This calls for better operational control performance by enhancing control schemes, designs and algorithms. Recent trends of using mathematical model and simulation framework to evaluate various control schemes, algorithms requires fast and reasonably accurate control models for IC engines. In this thesis, we have studied broadly different types of reciprocating engines and their working carried out a systematic survey of reciprocating engine subsystems/system level modelling, simulation and control literature. Then suitable Single cylinder naturally aspirated diesel engine sub-system/system level models and simulation framework is developed in matlab-simulink platform. The same engine model-simulator is tuned and validated using the experimental data collected from the IC engine lab set-up. The Naturally aspirated diesel engine with mechanical governor model is developed and validated. Model for temperature during combustion is developed for the same engine. These all developed model will be used in to develop necessary instrumentation and data acquisition systems for integration with the available IC engine lab set-up and to evaluate performance of some SISO and MIMO control algorithms for suitable engine sub-system/system.