A comparative review of performance and emission characteristics of diesel engine using eucalyptus-biodiesel blend

In the present review, eucalyptus called as a primary biodiesel and used as alternative fuel because of its lower viscosity and the secondary fuel is biodiesels. Eucalyptus oil blends are non-edible oils, easily available in large quantity all over the country with secondary biodiesel that will reduce the viscosity of secondary biodiesel. Whereas the reduction in brake thermal efficiency (BTE) for CI engine is achieved, In order to improve the BTE, diesel engine with low heat rejection (LHR) engine using eucalyptus oil as primary fuel and biodiesel as secondary fuel. The density and cetane index of the eucalyptus oil is higher as compared with diesel. To overcome these problems, diethyl ether (DEE) is added with above blend. Hence, a detailed present review has been carried out to improve the BTE equivalent and reducing the emissions from eucalyptus oil, biodiesel and additive in LHR engine as compared with diesel.

Automated summary

This review highlights the use of eucalyptus oil as a primary biodiesel and biodiesel as a secondary fuel in low heat rejection engines to improve brake thermal efficiency and reduce emissions. The higher density and cetane index of eucalyptus oil compared to diesel are addressed by adding diethyl ether to the blend. The study aims to enhance the BTE equivalent and decrease emissions compared to traditional diesel fuel.