Open AccessCFD Simulation of a DME Fuelled CI Engine
Author(s) -
Gaurav Mittal,
Jasmeet Kalra
Publication year - 2020
Publication title -
international journal of engineering and advanced technology
Language(s) - English
Resource type - Journals
ISSN - 2249-8958
DOI - 10.35940/ijeat.d1009.0484s19
Subject(s) - cylinder , computational fluid dynamics , compression ratio , closing (real estate) , ignition system , automotive engineering , fuel injection , ignition timing , materials science , mechanics , environmental science , simulation , mechanical engineering , engineering , physics , internal combustion engine , aerospace engineering , law , political science
A computational study is conducted for a DMEfuelled CI engine of 373.3 cm3displacement and 17.8compression ratio at moderate load with detailed chemistry. Dueto the symmetry of the cylinder, the simulations are conducted ona sector of the cylinder, from the closing of intake valve to theopening of exhaust valve. In the pilot injection strategy employed,10% of the total fuel is injected during the pilot injection and thebalance in the main injection at 50 BTDC. The computationalmodel is first validated using the experimental data. Results showtwo-stage ignition characteristic for the DME injected in the pilotinjection.