Abstract
Water in Diesel Nano-Emulsions (WiDNE) fuel are an important environmental fuelsfor decreasing the combustion pollution of diesel engines. WiDNE fuel is a dispersionstable thermodynamic and kinetic system consisting of diesel oil, surfactant and waterphase. WiDNE fuel due to their nano scale droplet size (20–200 nm) and large surface areaburns more completely and hence a reduction in emissions than straight diesel.The objective of this project is to evaluate the combustion characteristics of WiDNE fuelprepared by rotor-stator homogenizer using mixed surfactants based on nonionicemulsifiers Span™ 80, Tween™ 80. Direct injection (DI), Fiat engine was used and run at1500 rpm, constant fuel pressure (400 bar) with varying the operation load.Multi gas analyzer model 4880 was used to measure the concentration of the emissiongases such as NOx, unburned total hydrocarbon HC, CO2 and CO. The AVL-415 meter wasused for smoke emissions. The experimental results of WiDNE imposes the capability toimprove fuel properties, the engine efficiency as well as reduction of gas emissions.
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