PRAGMATIC ANALYSIS ON PERFORMANCE AND EMISSION AND A SINGLE-ZONE ENGINE MODEL DEVELOPMENT WITH INEDIBLE NEEM AND WASTE VEGETABLE OIL BIODIESEL BLEND (B10)
Abhishek Samanta, Prokash C. Roy
Abstract
The rapidly growing energy demand across the globe and emission problem can be compensated by biodiesel blends. These promising renewable fuels can be developed from vegetable feedstock. The influences of biodiesel blend (B10) derived from inedible vegetable oil were explored on combustion as well as performance along with emission parameters at different percentage of loading conditions in a normally aspirated with liquid cooled, single-cylinder, direct-injection compression ignition (CI) engine. A combined method of acid catalyst esterification followed by alkali catalyst transesterification is used to prepare biodiesel. Using conventional procedures the important properties of biodiesel have been tested for its important requirement as engine fuel. A compression ignition, single-zone biodiesel engine model has been established based on engine geometries (stroke, cylinder diameter, con rod length, and diameter of crank). Deviation in specific heat ratio of engine cylinder charge and burnt gases has been established. The predicted model for biodiesel blend engine has been verified using diesel and biodiesel blends B10. The event of reduced cylinder peak pressure and poor engine performance along with slight reduction in NOx emission while fuelled with NOME and WVOME blend (B10) are examined in this study. NOME B10 is preferred over WVOME B10 as an alternative to petroleum diesel. In order to find out the performance results and combustion nature, constant engine speed (1500 rpm) is being maintained during the experiments under 0%, 25%, 50%, and 100% load condition.