Some Perspectives on Alcohol Utilization in a Compression Ignition Engine

Feasibility of using less viscous and lower cetane (LVLC) fuels in a diesel engine: A review

“…The lower viscosity of ethanol would cause injector leak and pump wear and in order to address these issues, researchers suggested addition of lubricants, for instance adding 2% castor oil with the blend [161]. Moreover, the solubility of ethanol in diesel is complicated as it may be prone to separation at cold condition.…”

Comparative analyses of n-butanol–rapeseed oil–diesel blend with biodiesel, diesel and biodiesel–diesel fuels in a turbocharged direct injection diesel engine

“…Simple alcohols such as methanol and ethanol are the most common alcohols as additives or blended fuels in compression ignition engines although low lubricity, high auto-ignition temperature, low cetane number, solubility and high heat of vaporization are disadvantages of methanol and ethanol in compression ignition engines. Intake air preheat is a simple way to overcome the high heat of vaporization problem of simple alcohols and to improve ignition and combustion [10] and low lubricity can be improved by adding castor oil to simple alcohols [11]. In addition, methanol or ethanol is not miscible in diesel fuel but biodiesel can be used as an excellent binder or emulsifier to create biodieselealcoholediesel [12e15] or biodieselealcohol blends [16e21] within certain limits of methanol/ethanol concentrations.…”

Ignition Delay of Reactivity Controlled Compression Ignition (Rcci) for the Mixture of Diesel Fuel and Ethanol in a Rapid Compression Machine

“…Attempts for using alcohol fuel in a compression ignition engine typically involve major modifications to the basic diesel engine such as the increase in the volume of fuel injected by changing the injection timing and the fuel injection pressure. Others modifications include the increase of the vehicle fuel tank and the addition of fuel additives for lubricity and ignition improvement [6]. The main environmental problem for the use of alcohol fuel in diesel engines is an increased level of unburned or partially burned fuel.…”