K.K. Naga Chandrika’s research while affiliated with Easwari Engineering College and other places

Due to the rapid depletion of fossil fuels and the need of regulating environmental pollution caused by growing exhaust emissions, a viable alternative fuel for use in diesel engines is desperately required. Blend of biodiesel B20 with Aluminium Oxide (Nanoparticles) was tested to improve efficiency and reduce emissions. When compared to ordinary diesel, there was a significant improvement in engine performance. The brake thermal efficiency, specific fuel consumption, volumetric efficiency, peak cylinder pressure, smoke, CO, HC, NO and exhaust gas temperatures were analysed. With the blends, the engine produced less smoke, CO and HC emissions. According to the engine test results, biodiesel blend with Aluminium Oxide can also be used as fuel to replace diesel without requiring any engine modifications.

Additive manufacturing is the process of fabrication of components with precise geometric shapes. In additive manufacturing, Fusion Deposition Modeling (FDM) was an effective method to fabricate metal and non-metals. It was one of the fastest methods used in the manufacturing of prototypes. The polycarbonate (PC) has more attractive properties such as high strength, toughness, and high-temperature resistance. It was added to the aluminium 7068 alloys through the fusion deposition modeling technique. The adhesive strength between polycarbonate and aluminium were found through the peel test. The adhesive strength was measured with the change of peel angle, speed, and peeling force. The maximum adhesive strength and optimal factors were analyzed through the Taguchi method. The contribution of factors on peel strength or adhesive strength was determined through variance analysis.