A SIMPLE AND COST EFFECTIVE ELECTRONIC FUEL INJECTION SYSTEM FOR REACTIVITY CONTROLLED COMPRESSION IGNITION (RCCI) ENGINES

Paper #:
  • 2017-28-1940

Published:
  • 2017-07-10
Abstract:
The future of an internal combustion engine depends on how intelligently it controls the emission and monitors the efficiency in accordance with its working conditions. To gratify the emerging emission norms, an engine has to switch over to different modes of operation from its conventional spark ignition or compression ignition mode. One among the efficient modes which is being widely researched for its low NOx capability is called Reactivity Controlled Compression Ignition (RCCI). RCCI uses a port injected fuel similar to SI engines and gets it compression ignited similar to CI engines. Generally, two fuels of different reactivities will be chosen for this technique. RCCI can be achieved either by injecting one fuel through port and one fuel through in cylinder or both the fuels through port. In this research work, a simple and cost effective electronic fuel injection (EFI) technique was established to handle both the single and dual port injection systems. The developed electronic circuit was tested in a CI engine with RCCI mode using gasoline port injection and diesel in cylinder injection for a constant proportion of diesel/ gasoline (60:40) at different loads. It was found that, the use of port injected gasoline showed a similar efficiency to conventional diesel at high loads, along with a proven reduction in NOx emissions. Hence, an intelligent engine with a cost effective electronic fuel injection system which can be operated in conventional diesel mode at low loads and in RCCI mode at high loads can be beneficial in providing better efficiency and low emissions in future.
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