how can rheology of biodiesel specifically influence an internal combustion engine
The combustion depends on the drop size distribution of the fuel and the drop size depends, partly, on the viscosity of the fuel. Google Scholar will show you lots of beautiful physics on drop formation.
rheological properties will affect fuel injection leading to alterration of fuel particles size and spread of fuel...larger drop size rduces combustion efficiency
The combustion depends on the drop size distribution of the fuel and the drop size depends, partly, on the viscosity of the fuel in order to estimate the depth of penetration of fuel particle in air zone., which in turn depends injector opening pressure of the engine.
The combustion of biodiesel fuels is highly dependent on the ease of atomisation, injection, fuel spray quality and the penetration of the injected jets. These properties are functions of cold flow properties, viscosity and specific gravity of the biodiesel fuel.
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