Experimental Optimization of Reactivity Controlled Compression Ignition Combustion with Cost Effective Electronic Fuel Injection in a Light Duty Diesel Engine

Abstract

In order to control exhaust emissions from Internal Combustion (IC) engines, ever-tighter international legal standards
and excessive tax penalties have been introduced globally due to concerns about the depletion of oil reserves, rising
energy costs, and the environmental effects of greenhouse gas emissions. Low-Temperature Combustion (LTC)
techniques are currently the main focus of researchers' efforts to develop more effective internal combustion engines
with alternate combustion strategies employing oxygenated renewable alternate fuels. A fuel-flexible enhanced LTC
technology called Reactivity Controlled Compression Ignition (RCCI) aims to maximize engine efficiency while
reducing engine exhaust pollutants. In this study, a non-road, four-stroke, single-cylinder, water-cooled production
diesel engine (Kirloskar AV1) was appropriately converted to operate at a rated speed of about 1500 rpm under RCCI
combustion mode. The primary goal of the current study was to experimentally examine the potential applications of
higher alcohol n-butanol, Karanja biodiesel mix B20, and alternative fuels in a dual fuel RCCI combustion engine.
Bioenergy will support the rural economy and has the ability to increase the world's future energy needs. The test
engine's intake manifold was altered to provide room for an exhaust gas recirculation (EGR), port fuel injector, and
air preheater. Additionally, by integrating a high-pressure solenoid injector, a common rail with a Pressure Control
Valve (PCV) and Rail Pressure Sensor (RPS), fuel filters, a low-pressure electrical fuel feed pump, crank position
sensor, cam position sensors, and an open Electronic Control Unit (ECU) with the test engine, the mechanical fuel
injection system was replaced with a common rail direct injection system.