http://localhost:8080/xmlui/handle/123456789/46 Mon, 26 Jan 2026 23:58:25 GMT 2026-01-26T23:58:25Z http://localhost:8080/xmlui/handle/123456789/1900 Title: Effect of Compression Ratio on the Performance, Combustion and Emission of a Single Cylinder Diesel Engine Using Multinblended Second Generation Biofuel Authors: Sujesh. G; S. Ganesan; S. Ramesh Abstract: This work tries to unfold the impact of compression ratio to the operation, emission and combustion characteristics of a petrol engine operate on multi mixed second production bio fuel. For this investigation one canister, 4-S, water-cooled, guide injection varying compression diesel engine and another for petrol using waste cooking oil Methyl Ester (WME) by including Tyre Pyrolysis Oil (TPO) and also Cerium oxide (CeO2) have been utilized. Tests are run at different compression rates (17, 16 and 14) under various loading conditions adjusting the normal injection time at 23 CA BTDC. The fracture thermal efficiency increases along with the particular fuel consumption reduces with the rise of compression ratio. The gain in compression ratio induces increase in air pressure and heat discharge rate. The NOx emissions grow at greater compression ratio as a result of high cylinder temperature and pressure. On the flip side, Carbon monoxide (CO) and Hydrocarbon (HC) emissions are somewhat significantly less in higher compression levels. Wed, 01 Jan 2020 00:00:00 GMT http://localhost:8080/xmlui/handle/123456789/1900 2020-01-01T00:00:00Z http://localhost:8080/xmlui/handle/123456789/1896 Title: Surface Modification of Kenaf Fiber Reinforced Epoxy based Composite Authors: Parivendhan Inbakumar.J; Ramesh.S Abstract: In day today life, the awareness to the public along with the ease in the fabrication of polymers, has let to the frequent polymer useage. Few developing industries have started using the materials that are renewable. In the present work, the mechanical behavior of short un-treated and treated (KmNO4) kenaf fiber reinforced epoxy based composites was investigated. Fabrication of composite materials were carried out with volume percentage (10 %, 20 %, 30%) of treated and un treated kenaf fibers. The polymer used as matrix was epoxy resin. The composite was fabricated by using hand layup method. The various fiber loading was performed and their properties studied. The mechanical strength like tensile, flexural and impact of the composite was analysed. The effect of treatment had showed improvement in the composite properties. It was found that KmNO4 treatment and kenaf fiber loading has enhanced the synergetical effects on the composite. These chemically surface modified composites with natural fiber reinforcement can have a chief role in the development of structural component parts. These materials may be used for light weight applications, especially in automobile sector and structural components. Tue, 01 Jan 2019 00:00:00 GMT http://localhost:8080/xmlui/handle/123456789/1896 2019-01-01T00:00:00Z http://localhost:8080/xmlui/handle/123456789/1899 Title: In Situ Synthesis of Titanium Carbide in Pure Aluminium Authors: Satish Babu Boppana Abstract: The present work reports on the mechanism of formation of TiC in pure Aluminium melt. A halide salt of Al3TiF6, graphite powder and pure Al were used to prepare in situ Al-TiC Metal Matrix Composites (MMCs). Scanning Electron Microscopy (SEM) and Energy Dispersive Spectroscopy (EDS) were used to determine the microstructural characteristics of the composite. XRD was further used to determine the phases involved in the composite for confirming the formation of TiC. Further to assess the mechanism involved in the in situ reactions, DTA/TGA thermograms were used to analyze the reactions between molten Al, halide salt and graphite powder. Tensile tests were conducted to study the fracture behavior of the in situ prepared MMCs. Wed, 01 Jan 2020 00:00:00 GMT http://localhost:8080/xmlui/handle/123456789/1899 2020-01-01T00:00:00Z http://localhost:8080/xmlui/handle/123456789/1902 Title: Impact of Heat Treatment on Mechanical, Wear and Corrosion Behaviour of In Situ AlB2 Reinforced Metal Matrix Composites Produced by Liquid Metallurgy Route Authors: Satish Babu Boppana; Samuel Dayanand Abstract: The present investigation is carried out on Al-xAlB2 (x = 1, 3 and 5 wt%) in situ composites combined and created by methods using exothermic response between molten aluminium and mixed halide salts KBF4 and Na3AlF6 at a temperature of 800–850 °C by employing fluid metallurgy route. The base matrix and specimens of in situ composites were presented to solutionizing treatment at a temperature of 535 °C for 60 min and sought after by water extinguishing. The extinguished smothered composite specimens were presented to artificial ageing and maintained at a temperature of 175 °C for 10 h. The in situ composite specimens were presented to microstructure assessment and the result uncovered that clean and even AlB2 particulates dispersed reliably with incredible interfacial holding and detachments were noted all through the matrix by employing SEM/EDS equipment. By far, maximum of the AlB2 particles appear with different structures encompassing tube-formed, hexagonal, spherical and rectangle shapes. The XRD models uncovered the course of action of AlB2 particulates without the nearness of some other synthetic compound. The composites specimens were assessed for mechanical, wear and corrosion tests by the ASTM measures by using UTM, Pin-on-Disc and potentiodynamic corrosion testing machine. The heat-treated composites overhauled the mechanical properties, for instance, ultimate tensile strength, compression and hardness properties, and wear rate diminished with heat-treated in situ composites with increase in the wt% of AlB2 particulates pliability of the composite lessened. Tafel polarization bends by potentiodynamic equipment have brought a part of the electro compound parameters and presumes that higher erosion opposition was offered by heat-treated composites and appeared differently in relation to as-cast and untreated composites in the picked consumption media. Wed, 01 Jan 2020 00:00:00 GMT http://localhost:8080/xmlui/handle/123456789/1902 2020-01-01T00:00:00Z