Water/Diesel (W/D) emulsified formulations are reported to reduce the emissions of Nitrogen dioxide, Carbon monoxide, Carbon dioxide and Particulate Matter (PM) without compensating the performance of engine and reduce 10% Fuel consumption.
DIESEL WATER EMULSIONS
- Diesel water emulsions have come into recent field of study.
- When mixed directly, diesel being a lighter liquid than water comes to the top and water settles in the bottom.
- By using an appropriate surfactant the molecules of water and diesel can be bound together.
- Using water mixing agent with diesel has many benefits on its own.
- It reduces the flame temperature thereby reducing the NOx emissions significantly.
- Addition of water also improves atomization and mixing which is attributed to droplet micro emulsion.
- There have been several trials done to produce a stable emulsion which will stay the same way for a long period of time.
- If the emulsion remains still for many days, larger droplets of chemically coated water may settle to the bottom of the tank, or it’s also been seen that coagulated particles settle down in the bottom of the tank.
- The fuel, however, will mix again if agitated slightly, and thus the tank is refueled to mix it again
- The fuel is created by making an emulsion of diesel and water by using a suitable surfactant. The emulsion has to be stable for a longer period of time.
- This emulsion we tried our own method of ionization and fractions of nano droplets
- A comparison is done between the two cases in terms of performance and emission properties of the fuel.
BENEFITS
- The NOx emission is brought down by 30% – 50% by use of diesel water emulsion. This trend goes on increasing with increase in amount of water in the emulsion.
- It was clear that 20 % of water (by volume) in the emulsified diesel fuel was the optimum fraction of water which reduces the BSFC (Brake Specific Fuel Consumption) and increase the brake thermal efficiency.
- Water-diesel emulsion fuel has water in it which means H2O. This emulsified fuel already have some oxygen in it which will evaporate and (covert to vapor phase) when the emulsified fuel is injected in the Furthermore, oxygen gas will increase the efficiency of the combustion of the emulsified fuel due to the complete combustion or semi complete combustion that takes place in the combustion chamber.
- Minimum capacity 100 – Liter per day
- Operating cost is less
- Fuel economy is about 10 %