Abstract
The addition of water dispersed phase into the diesel continuous phase will lead to the formation of water-in-diesel (W/D) emulsion, which significantly reduces the pollution level of NOx and particulate matters in the diesel engines. The study of the rheological properties of stable W/D emulsions is important to understand the flow characteristics of these emulsions. Pure diesel fuel and three samples of W/D emulsions (10%, 20%, and 30% by volume water) were examined. Pure diesel fuel exhibits a Newtonian profile since its viscosity remains constant with the shear rate. All W/D emulsions display higher viscosity than diesel fuel with non-Newtonian flow behaviour of yield pseudoplastic response. The viscosity of the W/D emulsions decreases with the shear rate and water addition. The flow behaviour of pure diesel fuel can be described by the Power law model. The Casson model very sufficiently fits the flow behaviour of different W/D emulsions.
| Original language | English |
|---|---|
| Pages (from-to) | 24-28 |
| Number of pages | 5 |
| Journal | International Journal of Ambient Energy |
| Volume | 37 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jan 2 2016 |
Keywords
- shear rate
- shear stress
- viscosity
- water-in-diesel emulsion
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Building and Construction