TY - JOUR
TI - Design and performance evaluation of a novel self-rotating fuel injector using computational fluid dynamics - a preliminary study
AU - Chandrasekar Pichandi
AU - Prasad Neelakantan S
AU - Balamurugan Varadarajan
AU - Sudharsan Natteri M
JN - Thermal Science
PY - 2020
VL - 24
IS - 1
SP - 271
EP - 280
PT - Article
AB - Improving the performance and reducing emissions in a diesel engine is the  single most objective in current research. Various methods of approach have  been studied and presented in literature. A novel but not so pursued study  is on the performance of a rotating diesel injector. To date, there has been  very little study by implementing a rotating injector. Studies have shown an  improvement on the performance of an engine, but with a complicated external  rotating mechanism. In the present research, a novel self-rotating fuel  injector is designed and developed that is expected to improve the  performance without the need for a complicated rotating mechanism. The  design procedure, CFD simulation along with 3-D printing of a prototype is  presented. Numerical modelling and simulation are performed to study the  combustion characteristics of the rotating injector viz-a-viz a standard  static injector. Comparison based on heat release, efficiency, and emissions  are presented. While the proposed 9-hole injector had slight loss in thermal  efficiency, the modified 5-hole had a slight increase in thermal efficiency  when compared to the static baseline readings. The NOx reduced by 13% and CO  increased by 14% compared baseline emissions for the 5-hole version.