An experimental study in HCCI combustion of LPG in diesel engine

In the world of increased emission norms, gaseous fuel is more effectively used in decreasing the emissions and increased power output. Therefore LPG fueled HCCI for diesel engine is a challenging as well as an exciting idea to de investigated for better NOX emission and fuel consumption. LPG is made to attain its self-ignition temperature by preheating the intake air, which mixes with LPG in the intake manifold. The homogenous charge is to be prepared by manifold induction of LPG. Pilot injection of diesel initiates the combustion process later on the premixed and preheated intake air and LPG is introduced into combustion chamber. This project is concerned with the intake air preheating on the performance of HCCI with LPG fuel under varying load condition. Performance test are planned to be conducted in a single cylinder diesel engine modified into an HCCI engine. The homogeneous charge was prepared by port fuel induction method. It was found that by adopting this methodology the NOX significantly over a reasonable load range. Intake air preheating reduces the HC emission over all load range. (C) 2020 Elsevier Ltd. All rights reserved.