Study of Effect on Engine Performance Using 15% HCNG Blend Versus CNG Using a Simulation Approach

The present work deals with modeling an existing CNG engine using a 1D simulation tool (GT-SUITE), performing baseline validation of the model, generating simulation results of HCNG (15% hydrogen by volume), study of simulated results to bring out various trends and studying the effects of varying fuel–air equivalence ratio on optimum spark advance, peak in-cylinder pressure and peak in-cylinder temperature through simulation on validated engine model. This work is intended as a preliminary step to bring about a host of potential suggestions, which will help to improve the current power performance of the engine while using 15 HCNG as the fuel. The primary objective is to develop 1D engine model using the actual engine data as input and to generate simulation results. Actual experiments will be carried out to generate experimental results. Simulation model will be validated for accuracy within 10%. The validated engine model is now used for the purpose of simulation to study the effects of varying fuel–air equivalence ratio on optimum spark advance, peak in-cylinder pressure, and power performance for selected HCNG blend.