Development of a 15 kWe spark ignition producer gas engine and some investigations of its in-cylinder processes

A 15 kWe spark ignition producer gas engine (SIPGE) has been developed by machine converting a 17 kWe direct injection diesel engine. The design modifications carried out are combustion chamber geometry, reduction of compression ratio from 17 to 11.5, incorporation of ignition system and mounting of an air-gas mixer. The static ignition timing provided is 35° btdc. The engine efficiency is 28–32%. Wood based Producer gas of calorific value 6 to 7 MJ/Nm3 is used as engine fuel. This paper reports the development of a simulation model for estimating the in-cylinder process parameters of the SIPGE and an attempt made for its validation.