Investigation and Ranking of the Effect of Biodiesel Produced from Safflower Oil by the Hydrodynamic Method in Diesel Generator Engine Using TOPSIS Method

To investigate the possibility of using fuel for plant origin in a diesel generator, safflower methyl ester was prepared and used as a biodiesel. In this research, biodiesel was produced through a transesterification reaction using a hydrodynamic reactor, which increased the reaction efficiency and reduced fuel production time. Upon increasing the reaction time from ۳۰ seconds to ۶۰ seconds, the reaction performance increased by ۵.۵ %. Then, its important features complied with ASTM D-۶۷۵۱ standard. The performance and pollution indices of the diesel generator engine were tested with compounds B۰, B۲۰, B۵۰, B۸۰ and B۱۰۰. The results of short-term engine tests showed that by increasing the share of biodiesel to ۲۰ %, CO emissions were reduced by    ۲۱ % compared to pure diesel fuel, but the amount of NOX increased by ۰.۸۲ % compared to diesel. Also, the use of ۲۰ % volume of biodiesel in the fuel composition increased the thermal efficiency of braking, braking power, and braking torque of fuel, compared to diesel. Also, the specific fuel consumption of B۲۰ was reduced by ۲ %, which is very important economically. Finally, the TOPSIS analysis illustrated that B۵۰ fuel outperformed pure diesel fuel and other listed fuel combinations.

Keywords:

Biodiesel , Hydrodynamic reactor , Diesel generator , Performance Indices , Pollution indicators